<?xml version="1.0" encoding="UTF-8"?>

<xsd:schema xmlns="http://www.mibexplorer.com/xsd/mibs/DISMAN-PING-MIB" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:smi="http://www.mibexplorer.com/xsd/mibs/smi" xmlns:SNMPv2-SMI="http://www.mibexplorer.com/xsd/mibs/SNMPv2-SMI" xmlns:SNMPv2-TC="http://www.mibexplorer.com/xsd/mibs/SNMPv2-TC" xmlns:SNMPv2-CONF="http://www.mibexplorer.com/xsd/mibs/SNMPv2-CONF" xmlns:IF-MIB="http://www.mibexplorer.com/xsd/mibs/IF-MIB" xmlns:SNMP-FRAMEWORK-MIB="http://www.mibexplorer.com/xsd/mibs/SNMP-FRAMEWORK-MIB" xmlns:INET-ADDRESS-MIB="http://www.mibexplorer.com/xsd/mibs/INET-ADDRESS-MIB" xml:lang="en" elementFormDefault="qualified" attributeFormDefault="unqualified" targetNamespace="http://www.mibexplorer.com/xsd/mibs/DISMAN-PING-MIB">
        <xsd:annotation>
                <xsd:appinfo>
                        <xsd:documentation>The Ping MIB (DISMAN-PING-MIB) provides the capability of
controlling the use of the ping function at a remote
host.</xsd:documentation>
                </xsd:appinfo>
        </xsd:annotation>
        <xsd:import namespace="http://www.w3.org/2001/XMLSchema" schemaLocation="http://www.w3.org/2001/XMLSchema.xsd"/>
        <xsd:import namespace="http://www.mibexplorer.com/xsd/mibs/smi" schemaLocation="http://www.mibexplorer.com/xsd/mibs/smi.xsd"/>
        <xsd:import namespace="http://www.mibexplorer.com/xsd/mibs/SNMPv2-SMI" schemaLocation="http://www.mibexplorer.com/xsd/mibs/SNMPv2-SMI.xsd"/>
        <xsd:import namespace="http://www.mibexplorer.com/xsd/mibs/SNMPv2-TC" schemaLocation="http://www.mibexplorer.com/xsd/mibs/SNMPv2-TC.xsd"/>
        <xsd:import namespace="http://www.mibexplorer.com/xsd/mibs/SNMPv2-CONF" schemaLocation="http://www.mibexplorer.com/xsd/mibs/SNMPv2-CONF.xsd"/>
        <xsd:import namespace="http://www.mibexplorer.com/xsd/mibs/IF-MIB" schemaLocation="http://www.mibexplorer.com/xsd/mibs/IF-MIB.xsd"/>
        <xsd:import namespace="http://www.mibexplorer.com/xsd/mibs/SNMP-FRAMEWORK-MIB" schemaLocation="http://www.mibexplorer.com/xsd/mibs/SNMP-FRAMEWORK-MIB.xsd"/>
        <xsd:import namespace="http://www.mibexplorer.com/xsd/mibs/INET-ADDRESS-MIB" schemaLocation="http://www.mibexplorer.com/xsd/mibs/INET-ADDRESS-MIB.xsd"/>
        <xsd:element name="snmp-data">
                <xsd:complexType>
                        <xsd:sequence>
                                <xsd:element name="context" minOccurs="0" maxOccurs="unbounded">
                                        <xsd:complexType>
                                                <xsd:sequence>
                                                        <xsd:element name="pingObjects" minOccurs="0">
                                                                <xsd:complexType>
                                                                        <xsd:sequence>
                                                                                <xsd:element name="pingMaxConcurrentRequests" minOccurs="0">
                                                                                        <xsd:annotation>
                                                                                                <xsd:appinfo>
                                                                                                        <maxAccess>read-write</maxAccess>
                                                                                                        <status>current</status>
                                                                                                        <oid>1.3.6.1.2.1.80.1.1</oid>
                                                                                                        <units>"requests"</units>
                                                                                                        <xsd:documentation>The maximum number of concurrent active ping requests
that are allowed within an agent implementation.  A value
of 0 for this object implies that there is no limit for
the number of concurrent active requests in effect.</xsd:documentation>
                                                                                                </xsd:appinfo>
                                                                                        </xsd:annotation>
                                                                                        <xsd:simpleType>
                                                                                                <xsd:restriction base="smi:Unsigned32">
                                                                                                        <xsd:minInclusive value="0"/>
                                                                                                        <xsd:maxInclusive value="4294967295"/>
                                                                                                </xsd:restriction>
                                                                                        </xsd:simpleType>
                                                                                </xsd:element>
                                                                        </xsd:sequence>
                                                                </xsd:complexType>
                                                        </xsd:element>
                                                        <xsd:element name="pingMaxConcurrentRequests" minOccurs="0">
                                                                <xsd:annotation>
                                                                        <xsd:appinfo>
                                                                                <maxAccess>read-write</maxAccess>
                                                                                <status>current</status>
                                                                                <oid>1.3.6.1.2.1.80.1.1</oid>
                                                                                <units>"requests"</units>
                                                                                <xsd:documentation>The maximum number of concurrent active ping requests
that are allowed within an agent implementation.  A value
of 0 for this object implies that there is no limit for
the number of concurrent active requests in effect.</xsd:documentation>
                                                                        </xsd:appinfo>
                                                                </xsd:annotation>
                                                                <xsd:simpleType>
                                                                        <xsd:restriction base="smi:Unsigned32">
                                                                                <xsd:minInclusive value="0"/>
                                                                                <xsd:maxInclusive value="4294967295"/>
                                                                        </xsd:restriction>
                                                                </xsd:simpleType>
                                                        </xsd:element>
                                                        <xsd:element name="pingCtlEntry" type="pingCtlEntryType" minOccurs="0" maxOccurs="unbounded">
                                                                <xsd:annotation>
                                                                        <xsd:appinfo>
                                                                                <maxAccess>not-accessible</maxAccess>
                                                                                <status>current</status>
                                                                                <oid>1.3.6.1.2.1.80.1.2.1</oid>
                                                                                <xsd:documentation>Defines an entry in the pingCtlTable.  The first index
element, pingCtlOwnerIndex, is of type SnmpAdminString,
a textual convention that allows for use of the SNMPv3
View-Based Access Control Model (RFC 2575 [11], VACM)
and allows an management application to identify its
entries.  The second index, pingCtlTestName (also an
SnmpAdminString), enables the same management
application to have multiple outstanding requests.</xsd:documentation>
                                                                        </xsd:appinfo>
                                                                </xsd:annotation>
                                                        </xsd:element>
                                                        <xsd:element name="pingResultsEntry" type="pingResultsEntryType" minOccurs="0" maxOccurs="unbounded">
                                                                <xsd:annotation>
                                                                        <xsd:appinfo>
                                                                                <maxAccess>not-accessible</maxAccess>
                                                                                <status>current</status>
                                                                                <oid>1.3.6.1.2.1.80.1.3.1</oid>
                                                                                <xsd:documentation>Defines an entry in the pingResultsTable.  The
pingResultsTable has the same indexing as the
pingCtlTable in order for a pingResultsEntry to
correspond to the pingCtlEntry that caused it to
be created.</xsd:documentation>
                                                                        </xsd:appinfo>
                                                                </xsd:annotation>
                                                        </xsd:element>
                                                        <xsd:element name="pingProbeHistoryEntry" type="pingProbeHistoryEntryType" minOccurs="0" maxOccurs="unbounded">
                                                                <xsd:annotation>
                                                                        <xsd:appinfo>
                                                                                <maxAccess>not-accessible</maxAccess>
                                                                                <status>current</status>
                                                                                <oid>1.3.6.1.2.1.80.1.4.1</oid>
                                                                                <xsd:documentation>Defines an entry in the pingProbeHistoryTable.
The first two index elements identify the
pingCtlEntry that a pingProbeHistoryEntry belongs
to.  The third index element selects a single
probe result.</xsd:documentation>
                                                                        </xsd:appinfo>
                                                                </xsd:annotation>
                                                        </xsd:element>
                                                </xsd:sequence>
                                                <xsd:attribute name="agent" type="xsd:NMTOKEN" use="required"/>
                                                <xsd:attribute name="port" type="xsd:integer" use="required"/>
                                        </xsd:complexType>
                                </xsd:element>
                        </xsd:sequence>
                </xsd:complexType>
        </xsd:element>
        <xsd:complexType name="pingCtlEntryType">
                <xsd:sequence>
                        <xsd:element name="pingCtlTargetAddressType" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.3</oid>
                                                <xsd:documentation>Specifies the type of host address to be used at a remote
host for performing a ping operation.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="InetAddressType">
                                        <xsd:restriction base="xsd:NMTOKEN">
                                                <xsd:enumeration value="unknown">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>0</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="ipv4">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>1</intValue>
                                                                        <xsd:documentation>-- these named numbers are aligned</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="ipv6">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>2</intValue>
                                                                        <xsd:documentation>-- with AddressFamilyNumbers from</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="dns">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>16</intValue>
                                                                        <xsd:documentation>-- IANA-ADDRESS-FAMILY-NUMBERS-MIB</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlTargetAddress" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.4</oid>
                                                <xsd:documentation>Specifies the host address to be used at a remote host for
performing a ping operation.  The host address type is
determined by the object value of corresponding
pingCtlTargetAddressType.
A value for this object MUST be set prior to transitioning
its corresponding pingCtlEntry to active(1) via
pingCtlRowStatus.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="InetAddress">
                                        <xsd:restriction base="smi:OctetString">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="255"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlDataSize" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.5</oid>
                                                <units>"octets"</units>
                                                <xsd:documentation>Specifies the size of the data portion to be
transmitted in a ping operation in octets.  A ping
request is usually an ICMP message encoded
into an IP packet.  An IP packet has a maximum size
of 65535 octets.  Subtracting the size of the ICMP
or UDP header (both 8 octets) and the size of the IP
header (20 octets) yields a maximum size of 65507
octets.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:union>
                                                <xsd:simpleType>
                                                        <xsd:restriction base="xsd:unsignedInt">
                                                                <xsd:minInclusive value="0"/>
                                                                <xsd:maxInclusive value="65507"/>
                                                        </xsd:restriction>
                                                </xsd:simpleType>
                                        </xsd:union>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlTimeOut" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.6</oid>
                                                <units>"seconds"</units>
                                                <xsd:documentation>Specifies the time-out value, in seconds, for a
remote ping operation.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:union>
                                                <xsd:simpleType>
                                                        <xsd:restriction base="xsd:unsignedInt">
                                                                <xsd:minInclusive value="1"/>
                                                                <xsd:maxInclusive value="60"/>
                                                        </xsd:restriction>
                                                </xsd:simpleType>
                                        </xsd:union>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlProbeCount" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.7</oid>
                                                <units>"probes"</units>
                                                <xsd:documentation>Specifies the number of times to perform a ping
operation at a remote host.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:union>
                                                <xsd:simpleType>
                                                        <xsd:restriction base="xsd:unsignedInt">
                                                                <xsd:minInclusive value="1"/>
                                                                <xsd:maxInclusive value="15"/>
                                                        </xsd:restriction>
                                                </xsd:simpleType>
                                        </xsd:union>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlAdminStatus" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.8</oid>
                                                <xsd:documentation>Reflects the desired state that a pingCtlEntry should be
in:

   enabled(1)  - Attempt to activate the test as defined by
                 this pingCtlEntry.
   disabled(2) - Deactivate the test as defined by this
                 pingCtlEntry.

Refer to the corresponding pingResultsOperStatus to
determine the operational state of the test defined by
this entry.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="xsd:NMTOKEN">
                                                <xsd:enumeration value="enabled">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>1</intValue>
                                                                        <xsd:documentation>-- test should be started</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="disabled">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>2</intValue>
                                                                        <xsd:documentation>-- test should be stopped</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlDataFill" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.9</oid>
                                                <xsd:documentation>The content of this object is used together with the
corresponding pingCtlDataSize value to determine how to
fill the data portion of a probe packet.  The option of
selecting a data fill pattern can be useful when links
are compressed or have data pattern sensitivities. The
contents of pingCtlDataFill should be repeated in a ping
packet when the size of the data portion of the ping
packet is greater than the size of pingCtlDataFill.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:OctetString">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="1024"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlFrequency" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.10</oid>
                                                <units>"seconds"</units>
                                                <xsd:documentation>The number of seconds to wait before repeating a ping test
as defined by the value of the various objects in the
corresponding row.

A single ping test consists of a series of ping probes.
The number of probes is determined by the value of the
corresponding pingCtlProbeCount object.  After a single
test completes the number of seconds as defined by the
value of pingCtlFrequency MUST elapse before the
next ping test is started.

A value of 0 for this object implies that the test
as defined by the corresponding entry will not be
repeated.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:Unsigned32">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="4294967295"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlMaxRows" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.11</oid>
                                                <units>"rows"</units>
                                                <xsd:documentation>The maximum number of entries allowed in the
pingProbeHistoryTable.  An implementation of this
MIB will remove the oldest entry in the
pingProbeHistoryTable to allow the addition of an
new entry once the number of rows in the
pingProbeHistoryTable reaches this value.

Old entries are not removed when a new test is
started.  Entries are added to the pingProbeHistoryTable
until pingCtlMaxRows is reached before entries begin to
be removed.

A value of 0 for this object disables creation of
pingProbeHistoryTable entries.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:Unsigned32">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="4294967295"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlStorageType" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.12</oid>
                                                <xsd:documentation>The storage type for this conceptual row.
Conceptual rows having the value 'permanent' need not
allow write-access to any columnar objects in the row.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="StorageType">
                                        <xsd:restriction base="xsd:NMTOKEN">
                                                <xsd:enumeration value="other">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>1</intValue>
                                                                        <xsd:documentation>-- eh?</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="volatile">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>2</intValue>
                                                                        <xsd:documentation>-- e.g., in RAM</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="nonVolatile">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>3</intValue>
                                                                        <xsd:documentation>-- e.g., in NVRAM</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="permanent">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>4</intValue>
                                                                        <xsd:documentation>-- e.g., partially in ROM</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="readOnly">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>5</intValue>
                                                                        <xsd:documentation>-- e.g., completely in ROM</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlTrapGeneration" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.13</oid>
                                                <xsd:documentation>The value of this object determines when and if
to generate a notification for this entry:

probeFailure(0)   - Generate a pingProbeFailed
    notification subject to the value of
    pingCtlTrapProbeFailureFilter.  The object
    pingCtlTrapProbeFailureFilter can be used
    to specify the number of successive probe failures
    that are required before a pingProbeFailed
    notification can be generated.
testFailure(1)    - Generate a pingTestFailed
    notification. In this instance the object
    pingCtlTrapTestFailureFilter can be used to
    determine the number of probe failures that
    signal when a test fails.
testCompletion(2) - Generate a pingTestCompleted
    notification.

The value of this object defaults to zero, indicating
that none of the above options have been selected.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="xsd:NMTOKEN">
                                                <xsd:enumeration value="probeFailure">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>0</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="testFailure">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>1</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="testCompletion">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>2</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlTrapProbeFailureFilter" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.14</oid>
                                                <xsd:documentation>The value of this object is used to determine when
to generate a pingProbeFailed NOTIFICATION.

Setting pingCtlTrapGeneration
to probeFailure(0) implies that a pingProbeFailed
NOTIFICATION is generated only when the number of
successive probe failures as indicated by the
value of pingCtlTrapPrbefailureFilter fail within
a given ping test.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:union>
                                                <xsd:simpleType>
                                                        <xsd:restriction base="xsd:unsignedInt">
                                                                <xsd:minInclusive value="0"/>
                                                                <xsd:maxInclusive value="15"/>
                                                        </xsd:restriction>
                                                </xsd:simpleType>
                                        </xsd:union>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlTrapTestFailureFilter" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.15</oid>
                                                <xsd:documentation>The value of this object is used to determine when
to generate a pingTestFailed NOTIFICATION.

Setting pingCtlTrapGeneration to testFailure(1)
implies that a pingTestFailed NOTIFICATION is
generated only when the number of ping failures
within a test exceed the value of
pingCtlTrapTestFailureFilter.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:union>
                                                <xsd:simpleType>
                                                        <xsd:restriction base="xsd:unsignedInt">
                                                                <xsd:minInclusive value="0"/>
                                                                <xsd:maxInclusive value="15"/>
                                                        </xsd:restriction>
                                                </xsd:simpleType>
                                        </xsd:union>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlType" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.16</oid>
                                                <xsd:documentation>The value of this object is used to either report or
select the implementation method to be used for
calculating a ping response time.  The value of this
object MAY be selected from pingImplementationTypeDomains.

Additional implementation types SHOULD be allocated as
required by implementers of the DISMAN-PING-MIB under
their enterprise specific registration point and not
beneath pingImplementationTypeDomains.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:ObjectIdentifier"/>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlDescr" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.17</oid>
                                                <xsd:documentation>The purpose of this object is to provide a
descriptive name of the remote ping test.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="SnmpAdminString">
                                        <xsd:annotation>
                                                <xsd:appinfo>
                                                        <displayHint>"255t"</displayHint>
                                                </xsd:appinfo>
                                        </xsd:annotation>
                                        <xsd:restriction base="smi:OctetString">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="255"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlSourceAddressType" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.18</oid>
                                                <xsd:documentation>Specifies the type of the source address,
pingCtlSourceAddress, to be used at a remote host
when performing a ping operation.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="InetAddressType">
                                        <xsd:restriction base="xsd:NMTOKEN">
                                                <xsd:enumeration value="unknown">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>0</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="ipv4">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>1</intValue>
                                                                        <xsd:documentation>-- these named numbers are aligned</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="ipv6">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>2</intValue>
                                                                        <xsd:documentation>-- with AddressFamilyNumbers from</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="dns">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>16</intValue>
                                                                        <xsd:documentation>-- IANA-ADDRESS-FAMILY-NUMBERS-MIB</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlSourceAddress" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.19</oid>
                                                <xsd:documentation>Use the specified IP address (which must be given
in numeric form, not as a hostname) as the source
address in outgoing probe packets.  On hosts with
more than one IP address, this option can be used
to force the source address to be something other
than the primary IP address of the interface the
probe packet is sent on.  If the IP address is not
one of this machine's interface addresses, an error
is returned and nothing is sent.  A zero length
octet string value for this object disables source
address specification.

The address type (InetAddressType) that relates to
this object is specified by the corresponding value
of pingCtlSourceAddressType.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="InetAddress">
                                        <xsd:restriction base="smi:OctetString">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="255"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlIfIndex" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.20</oid>
                                                <xsd:documentation>Setting this object to an interface's ifIndex prior
to starting a remote ping operation directs
the ping probes to be transmitted over the
specified interface.  A value of zero for this object
means that this option is not enabled.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="InterfaceIndexOrZero">
                                        <xsd:annotation>
                                                <xsd:appinfo>
                                                        <displayHint>"d"</displayHint>
                                                </xsd:appinfo>
                                        </xsd:annotation>
                                        <xsd:union>
                                                <xsd:simpleType>
                                                        <xsd:restriction base="xsd:int">
                                                                <xsd:minInclusive value="0"/>
                                                                <xsd:maxInclusive value="2147483647"/>
                                                        </xsd:restriction>
                                                </xsd:simpleType>
                                        </xsd:union>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlByPassRouteTable" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.21</oid>
                                                <xsd:documentation>The purpose of this object is to optionally enable
bypassing the route table.  If enabled, the remote
host will bypass the normal routing tables and send
directly to a host on an attached network.  If the
host is not on a directly-attached network, an
error is returned.  This option can be used to perform
the ping operation to a local host through an
interface that has no route defined (e.g., after the
interface was dropped by routed).</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="TruthValue">
                                        <xsd:restriction base="xsd:NMTOKEN">
                                                <xsd:enumeration value="true">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>1</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="false">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>2</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlDSField" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.22</oid>
                                                <xsd:documentation>Specifies the value to store in the Differentiated
   Services (DS) Field in the IP packet used to
   encapsulate the ping probe.  The DS Field is defined
   as the Type of Service (TOS) octet in a IPv4 header
   or as the Traffic Class octet in a IPv6 header.

   The value of this object must be a decimal integer
   in the range from 0 to 255.  This option can be used
   to determine what effect an explicit DS Field setting
   has on a ping response.  Not all values are legal or
   meaningful.  A value of 0 means that the function
represented by this option is not supported.  DS Field
usage is often not supported by IP implementations and
not all values are supported.  Refer to RFC 2474 for
guidance on usage of this field.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:union>
                                                <xsd:simpleType>
                                                        <xsd:restriction base="xsd:unsignedInt">
                                                                <xsd:minInclusive value="0"/>
                                                                <xsd:maxInclusive value="255"/>
                                                        </xsd:restriction>
                                                </xsd:simpleType>
                                        </xsd:union>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingCtlRowStatus" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-write</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.2.1.23</oid>
                                                <xsd:documentation>This object allows entries to be created and deleted
in the pingCtlTable.  Deletion of an entry in this
table results in all corresponding (same
pingCtlOwnerIndex and pingCtlTestName index values)
pingResultsTable and pingProbeHistoryTable entries
being deleted.

A value MUST be specified for pingCtlTargetAddress
prior to a transition to active(1) state being
accepted.

Activation of a remote ping operation is controlled
via pingCtlAdminStatus and not by changing
this object's value to active(1).

Transitions in and out of active(1) state are not
allowed while an entry's pingResultsOperStatus is
active(1) with the exception that deletion of
an entry in this table by setting its RowStatus
object to destroy(6) will stop an active
ping operation.

The operational state of a ping operation
can be determined by examination of its
pingResultsOperStatus object.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="RowStatus">
                                        <xsd:restriction base="xsd:NMTOKEN">
                                                <xsd:enumeration value="active">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>1</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="notInService">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>2</intValue>
                                                                        <xsd:documentation>-- the following value is a state:
-- this value may be read, but not written</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="notReady">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>3</intValue>
                                                                        <xsd:documentation>-- the following three values are
-- actions: these values may be written,
--   but are never read</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="createAndGo">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>4</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="createAndWait">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>5</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="destroy">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>6</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                </xsd:sequence>
                <xsd:attribute name="pingCtlOwnerIndex" type="SNMP-FRAMEWORK-MIB:SnmpAdminString"/>
                <xsd:attribute name="pingCtlTestName" type="SNMP-FRAMEWORK-MIB:SnmpAdminString"/>
        </xsd:complexType>
        <xsd:complexType name="pingResultsEntryType">
                <xsd:sequence>
                        <xsd:element name="pingResultsOperStatus" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.3.1.1</oid>
                                                <xsd:documentation>Reflects the operational state of a pingCtlEntry:
enabled(1)   - Test is active.
disabled(2)  - Test has stopped.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="xsd:NMTOKEN">
                                                <xsd:enumeration value="enabled">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>1</intValue>
                                                                        <xsd:documentation>-- test is in progress</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="disabled">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>2</intValue>
                                                                        <xsd:documentation>-- test has stopped</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingResultsIpTargetAddressType" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.3.1.2</oid>
                                                <xsd:documentation>This objects indicates the type of address stored
in the corresponding pingResultsIpTargetAddress
object.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="InetAddressType">
                                        <xsd:restriction base="xsd:NMTOKEN">
                                                <xsd:enumeration value="unknown">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>0</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="ipv4">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>1</intValue>
                                                                        <xsd:documentation>-- these named numbers are aligned</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="ipv6">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>2</intValue>
                                                                        <xsd:documentation>-- with AddressFamilyNumbers from</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="dns">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>16</intValue>
                                                                        <xsd:documentation>-- IANA-ADDRESS-FAMILY-NUMBERS-MIB</xsd:documentation>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingResultsIpTargetAddress" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.3.1.3</oid>
                                                <xsd:documentation>This objects reports the IP address associated
with a pingCtlTargetAddress value when the destination
address is specified as a DNS name.  The value of
this object should be a zero length octet string
when a DNS name is not specified or when a
specified DNS name fails to resolve.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="InetAddress">
                                        <xsd:restriction base="smi:OctetString">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="255"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingResultsMinRtt" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.3.1.4</oid>
                                                <units>"milliseconds"</units>
                                                <xsd:documentation>The minimum ping round-trip-time (RTT) received.  A value
of 0 for this object implies that no RTT has been received.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:Unsigned32">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="4294967295"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingResultsMaxRtt" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.3.1.5</oid>
                                                <units>"milliseconds"</units>
                                                <xsd:documentation>The maximum ping round-trip-time (RTT) received.  A value
of 0 for this object implies that no RTT has been received.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:Unsigned32">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="4294967295"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingResultsAverageRtt" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.3.1.6</oid>
                                                <units>"milliseconds"</units>
                                                <xsd:documentation>The current average ping round-trip-time (RTT).</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:Unsigned32">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="4294967295"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingResultsProbeResponses" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.3.1.7</oid>
                                                <units>"responses"</units>
                                                <xsd:documentation>Number of responses received for the corresponding
pingCtlEntry and pingResultsEntry.  The value of this object
MUST be reported as 0 when no probe responses have been
received.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:Unsigned32">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="4294967295"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingResultsSentProbes" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.3.1.8</oid>
                                                <units>"probes"</units>
                                                <xsd:documentation>The value of this object reflects the number of probes sent
for the corresponding pingCtlEntry and pingResultsEntry.
The value of this object MUST be reported as 0 when no probes
have been sent.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:Unsigned32">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="4294967295"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingResultsRttSumOfSquares" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.3.1.9</oid>
                                                <units>"milliseconds"</units>
                                                <xsd:documentation>This object contains the sum of the squares for all ping
responses received.  Its purpose is to enable standard
deviation calculation.  The value of this object MUST
be reported as 0 when no ping responses have been
received.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:Unsigned32">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="4294967295"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingResultsLastGoodProbe" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.3.1.10</oid>
                                                <xsd:documentation>Date and time when the last response was received for
a probe.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="DateAndTime">
                                        <xsd:annotation>
                                                <xsd:appinfo>
                                                        <displayHint>"2d-1d-1d,1d:1d:1d.1d,1a1d:1d"</displayHint>
                                                </xsd:appinfo>
                                        </xsd:annotation>
                                        <xsd:restriction base="smi:OctetString">
                                                <xsd:minInclusive value="8"/>
                                                <xsd:maxInclusive value="11"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                </xsd:sequence>
                <xsd:attribute name="pingCtlOwnerIndex" type="SNMP-FRAMEWORK-MIB:SnmpAdminString"/>
                <xsd:attribute name="pingCtlTestName" type="SNMP-FRAMEWORK-MIB:SnmpAdminString"/>
        </xsd:complexType>
        <xsd:complexType name="pingProbeHistoryEntryType">
                <xsd:sequence>
                        <xsd:element name="pingProbeHistoryResponse" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.4.1.2</oid>
                                                <units>"milliseconds"</units>
                                                <xsd:documentation>The amount of time measured in milliseconds from when
a probe was sent to when its response was received or
when it timed out.  The value of this object is reported
as 0 when it is not possible to transmit a probe.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:Unsigned32">
                                                <xsd:minInclusive value="0"/>
                                                <xsd:maxInclusive value="4294967295"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingProbeHistoryStatus" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.4.1.3</oid>
                                                <xsd:documentation>The result of a particular probe done by a remote host.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="OperationResponseStatus">
                                        <xsd:restriction base="xsd:NMTOKEN">
                                                <xsd:enumeration value="responseReceived">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>1</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="unknown">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>2</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="internalError">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>3</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="requestTimedOut">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>4</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="unknownDestinationAddress">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>5</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="noRouteToTarget">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>6</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="interfaceInactiveToTarget">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>7</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="arpFailure">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>8</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="maxConcurrentLimitReached">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>9</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="unableToResolveDnsName">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>10</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                                <xsd:enumeration value="invalidHostAddress">
                                                        <xsd:annotation>
                                                                <xsd:appinfo>
                                                                        <intValue>11</intValue>
                                                                </xsd:appinfo>
                                                        </xsd:annotation>
                                                </xsd:enumeration>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingProbeHistoryLastRC" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.4.1.4</oid>
                                                <xsd:documentation>The last implementation method specific reply code received.
If the ICMP Echo capability is being used then a successful
probe ends when an ICMP response is received that contains
the code ICMP_ECHOREPLY(0).  The ICMP responses are defined
normally in the ip_icmp include file.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType>
                                        <xsd:restriction base="smi:Integer32">
                                                <xsd:minInclusive value="-2147483648"/>
                                                <xsd:maxInclusive value="2147483647"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                        <xsd:element name="pingProbeHistoryTime" minOccurs="0">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <maxAccess>read-only</maxAccess>
                                                <status>current</status>
                                                <oid>1.3.6.1.2.1.80.1.4.1.5</oid>
                                                <xsd:documentation>Timestamp for when this probe result was determined.</xsd:documentation>
                                        </xsd:appinfo>
                                </xsd:annotation>
                                <xsd:simpleType name="DateAndTime">
                                        <xsd:annotation>
                                                <xsd:appinfo>
                                                        <displayHint>"2d-1d-1d,1d:1d:1d.1d,1a1d:1d"</displayHint>
                                                </xsd:appinfo>
                                        </xsd:annotation>
                                        <xsd:restriction base="smi:OctetString">
                                                <xsd:minInclusive value="8"/>
                                                <xsd:maxInclusive value="11"/>
                                        </xsd:restriction>
                                </xsd:simpleType>
                        </xsd:element>
                </xsd:sequence>
                <xsd:attribute name="pingCtlOwnerIndex" type="SNMP-FRAMEWORK-MIB:SnmpAdminString"/>
                <xsd:attribute name="pingCtlTestName" type="SNMP-FRAMEWORK-MIB:SnmpAdminString"/>
                <xsd:attribute name="pingProbeHistoryIndex" type="smi:Unsigned32"/>
        </xsd:complexType>
        <xsd:simpleType name="OperationResponseStatus">
                <xsd:annotation>
                        <xsd:documentation>Used to report the result of an operation:

responseReceived(1) - Operation completes successfully.
unknown(2) - Operation failed due to unknown error.
internalError(3) - An implementation detected an error
     in its own processing that caused an operation
     to fail.
requestTimedOut(4) - Operation failed to receive a
     valid reply within the time limit imposed on it.
unknownDestinationAddress(5) - Invalid destination
     address.
noRouteToTarget(6) - Could not find a route to target.
interfaceInactiveToTarget(7) - The interface to be
     used in sending a probe is inactive without an
     alternate route existing.
arpFailure(8) - Unable to resolve a target address to a
     media specific address.
maxConcurrentLimitReached(9) - The maximum number of
     concurrent active operations would have been exceeded
     if the corresponding operation was allowed.
unableToResolveDnsName(10) - The DNS name specified was
     unable to be mapped to an IP address.
invalidHostAddress(11) - The IP address for a host
     has been determined to be invalid.  Examples of this
     are broadcast or multicast addresses.</xsd:documentation>
                </xsd:annotation>
                <xsd:restriction base="xsd:NMTOKEN">
                        <xsd:enumeration value="responseReceived">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>1</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                        <xsd:enumeration value="unknown">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>2</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                        <xsd:enumeration value="internalError">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>3</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                        <xsd:enumeration value="requestTimedOut">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>4</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                        <xsd:enumeration value="unknownDestinationAddress">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>5</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                        <xsd:enumeration value="noRouteToTarget">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>6</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                        <xsd:enumeration value="interfaceInactiveToTarget">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>7</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                        <xsd:enumeration value="arpFailure">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>8</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                        <xsd:enumeration value="maxConcurrentLimitReached">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>9</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                        <xsd:enumeration value="unableToResolveDnsName">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>10</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                        <xsd:enumeration value="invalidHostAddress">
                                <xsd:annotation>
                                        <xsd:appinfo>
                                                <intValue>11</intValue>
                                        </xsd:appinfo>
                                </xsd:annotation>
                        </xsd:enumeration>
                </xsd:restriction>
        </xsd:simpleType>
</xsd:schema>
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