CISCO-CDP-MIB
AI MIB Summary
The CISCO-CDP-MIB enables monitoring of Cisco Discovery Protocol neighbor relationships, including device identifiers, interface mappings, platform capabilities, and protocol version details across Cisco network infrastructure. It facilitates the collection of real-time topology data and neighbor status counters to validate Layer 2 adjacency and detect unauthorized or unexpected device connections.
The MIB module for management of the Cisco Discovery Protocol in Cisco devices.
Main OID:
ciscoCdpMIB.1.3.6.1.4.1.9.9.23
58
Objects
Active
Status
7
Dependencies
Imported Objects
Objects
58 total| Object Name |
|---|
ciscoCdpMIBThe MIB module for management of the Cisco Discovery
Protocol in Cisco devices. MODULE-IDENTITY .1.3.6.1.4.1.9.9.23 |
ciscoCdpMIBObjects OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.23.1 |
cdpInterface OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.23.1.1 |
cdpInterfaceTableThe (conceptual) table containing the status of CDP on
the device's interfaces. SEQUENCE OF CdpInterfaceEntry .1.3.6.1.4.1.9.9.23.1.1.1 |
cdpInterfaceEntryAn entry (conceptual row) in the cdpInterfaceTable,
containing the status of CDP on an interface. CdpInterfaceEntry .1.3.6.1.4.1.9.9.23.1.1.1.1 |
cdpInterfaceIfIndexThe ifIndex value of the local interface.
For 802.3 Repeaters on which the repeater ports do not
have ifIndex values assigned, this value is a unique
value for the port, and greater than any ifIndex value
supported by the repeater; in this case, the specific
port is indicated by corresponding values of
cdpInterfaceGroup and cdpInterfacePort, where these
values correspond to the group number and port number
values of RFC 1516. Integer32 .1.3.6.1.4.1.9.9.23.1.1.1.1.1 |
cdpInterfaceEnableAn indication of whether the Cisco Discovery Protocol
is currently running on this interface. This variable
has no effect when CDP is disabled (cdpGlobalRun = FALSE).rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.1.1.1.2 |
cdpInterfaceMessageIntervalThe interval at which CDP messages are to be generated
on this interface. The default value is 60 seconds.rwobsolete INTEGER .1.3.6.1.4.1.9.9.23.1.1.1.1.3 |
cdpInterfaceGroupThis object is only relevant to interfaces which are
repeater ports on 802.3 repeaters. In this situation,
it indicates the RFC1516 group number of the repeater
port which corresponds to this interface.ro Integer32 .1.3.6.1.4.1.9.9.23.1.1.1.1.4 |
cdpInterfacePortThis object is only relevant to interfaces which are
repeater ports on 802.3 repeaters. In this situation,
it indicates the RFC1516 port number of the repeater
port which corresponds to this interface.ro Integer32 .1.3.6.1.4.1.9.9.23.1.1.1.1.5 |
cdpInterfaceNameThe name of the local interface as advertised by
CDP in the Port-ID TLVro DisplayString (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.1.1.1.6 |
cdpInterfaceExtTableThis table contains the additional CDP configuration on
the device's interfaces. SEQUENCE OF CdpInterfaceExtEntry .1.3.6.1.4.1.9.9.23.1.1.2 |
cdpInterfaceExtEntryAn entry in the cdpInterfaceExtTable contains the values
configured for Extented Trust TLV and COS (Class of Service)
for Untrusted Ports TLV on an interface which supports the
sending of these TLVs. CdpInterfaceExtEntry .1.3.6.1.4.1.9.9.23.1.1.2.1 |
cdpInterfaceExtendedTrustIndicates the value to be sent by Extended Trust TLV.
If trusted(1) is configured, the value of Extended Trust TLV
is one byte in length with its least significant bit equal to
1 to indicate extended trust. All other bits are 0.
If noTrust(2) is configured, the value of Extended Trust TLV
is one byte in length with its least significant bit equal to
0 to indicate no extended trust. All other bits are 0.rw Enumeration .1.3.6.1.4.1.9.9.23.1.1.2.1.1 |
cdpInterfaceCosForUntrustedPortIndicates the value to be sent by COS for Untrusted Ports TLV.rw Unsigned32 .1.3.6.1.4.1.9.9.23.1.1.2.1.2 |
cdpCache OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.23.1.2 |
cdpCacheTableThe (conceptual) table containing the cached
information obtained via receiving CDP messages. SEQUENCE OF CdpCacheEntry .1.3.6.1.4.1.9.9.23.1.2.1 |
cdpCacheEntryAn entry (conceptual row) in the cdpCacheTable,
containing the information received via CDP on one
interface from one device. Entries appear when
a CDP advertisement is received from a neighbor
device. Entries disappear when CDP is disabled
on the interface, or globally. CdpCacheEntry .1.3.6.1.4.1.9.9.23.1.2.1.1 |
cdpCacheIfIndexNormally, the ifIndex value of the local interface.
For 802.3 Repeaters for which the repeater ports do not
have ifIndex values assigned, this value is a unique
value for the port, and greater than any ifIndex value
supported by the repeater; the specific port number in
this case, is given by the corresponding value of
cdpInterfacePort. Integer32 .1.3.6.1.4.1.9.9.23.1.2.1.1.1 |
cdpCacheDeviceIndexA unique value for each device from which CDP messages
are being received. Integer32 .1.3.6.1.4.1.9.9.23.1.2.1.1.2 |
cdpCacheAddressTypeAn indication of the type of address contained in the
corresponding instance of cdpCacheAddress.ro CiscoNetworkProtocol (CISCO-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.3 |
cdpCacheAddressThe (first) network-layer address of the device
as reported in the Address TLV of the most recently received
CDP message. For example, if the corresponding instance of
cacheAddressType had the value 'ip(1)', then this object
would be an IPv4-address. If the neighbor device is
SNMP-manageable, it is supposed to generate its CDP messages
such that this address is one at which it will receive SNMP
messages. Use cdpCtAddressTable to extract the remaining
addresses from the Address TLV received most recently.ro CiscoNetworkAddress (CISCO-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.4 |
cdpCacheVersionThe Version string as reported in the most recent CDP
message. The zero-length string indicates no Version
field (TLV) was reported in the most recent CDP
message.ro DisplayString (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.5 |
cdpCacheDeviceIdThe Device-ID string as reported in the most recent CDP
message. The zero-length string indicates no Device-ID
field (TLV) was reported in the most recent CDP
message.ro DisplayString (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.6 |
cdpCacheDevicePortThe Port-ID string as reported in the most recent CDP
message. This will typically be the value of the ifName
object (e.g., 'Ethernet0'). The zero-length string
indicates no Port-ID field (TLV) was reported in the
most recent CDP message.ro DisplayString (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.7 |
cdpCachePlatformThe Device's Hardware Platform as reported in the most
recent CDP message. The zero-length string indicates
that no Platform field (TLV) was reported in the most
recent CDP message.ro DisplayString (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.8 |
cdpCacheCapabilitiesThe Device's Functional Capabilities as reported in the
most recent CDP message. For latest set of specific
values, see the latest version of the CDP specification.
The zero-length string indicates no Capabilities field
(TLV) was reported in the most recent CDP message.ro OCTET STRING .1.3.6.1.4.1.9.9.23.1.2.1.1.9 |
cdpCacheVTPMgmtDomainThe VTP Management Domain for the remote device's interface,
as reported in the most recently received CDP message.
This object is not instantiated if no VTP Management Domain field
(TLV) was reported in the most recently received CDP message.ro DisplayString .1.3.6.1.4.1.9.9.23.1.2.1.1.10 |
cdpCacheNativeVLANThe remote device's interface's native VLAN, as reported in the
most recent CDP message. The value 0 indicates
no native VLAN field (TLV) was reported in the most
recent CDP message.ro VlanIndex .1.3.6.1.4.1.9.9.23.1.2.1.1.11 |
cdpCacheDuplexThe remote device's interface's duplex mode, as reported in the
most recent CDP message. The value unknown(1) indicates
no duplex mode field (TLV) was reported in the most
recent CDP message.ro Enumeration .1.3.6.1.4.1.9.9.23.1.2.1.1.12 |
cdpCacheApplianceIDThe remote device's Appliance ID, as reported in the
most recent CDP message. This object is not instantiated if
no Appliance VLAN-ID field (TLV) was reported in the most
recently received CDP message.ro Unsigned32 .1.3.6.1.4.1.9.9.23.1.2.1.1.13 |
cdpCacheVlanIDThe remote device's VoIP VLAN ID, as reported in the
most recent CDP message. This object is not instantiated if
no Appliance VLAN-ID field (TLV) was reported in the most
recently received CDP message.ro Unsigned32 .1.3.6.1.4.1.9.9.23.1.2.1.1.14 |
cdpCachePowerConsumptionThe amount of power consumed by remote device, as reported
in the most recent CDP message. This object is not instantiated
if no Power Consumption field (TLV) was reported in the most
recently received CDP message.ro Unsigned32 UNITS "milliwatts" .1.3.6.1.4.1.9.9.23.1.2.1.1.15 |
cdpCacheMTUIndicates the size of the largest datagram that can be
sent/received by remote device, as reported in the most recent
CDP message. This object is not instantiated if no MTU field
(TLV) was reported in the most recently received CDP message.ro Unsigned32 .1.3.6.1.4.1.9.9.23.1.2.1.1.16 |
cdpCacheSysNameIndicates the value of the remote device's sysName MIB object.
By convention, it is the device's fully qualified domain name.
This object is not instantiated if no sysName field (TLV) was
reported in the most recently received CDP message.ro DisplayString .1.3.6.1.4.1.9.9.23.1.2.1.1.17 |
cdpCacheSysObjectIDIndicates the value of the remote device's sysObjectID MIB
object. This object is not instantiated if no sysObjectID field
(TLV) was reported in the most recently received CDP message.ro OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.23.1.2.1.1.18 |
cdpCachePrimaryMgmtAddrTypeAn indication of the type of address contained in the
corresponding instance of cdpCachePrimaryMgmtAddress.ro CiscoNetworkProtocol (CISCO-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.19 |
cdpCachePrimaryMgmtAddrThis object indicates the (first) network layer
address at which the device will accept SNMP messages
as reported in the first address in the
Management-Address TLV of the most recently received
CDP message. If the corresponding instance of
cdpCachePrimaryMgmtAddrType has the value 'ip(1)',
then this object would be an IP-address. If the
remote device is not currently manageable via any
network protocol, then it reports the special value
of the IPv4 address 0.0.0.0, and that address is
recorded in this object. If the most recently received
CDP message did not contain the Management-Address
TLV, then this object is not instanstiated.ro CiscoNetworkAddress (CISCO-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.20 |
cdpCacheSecondaryMgmtAddrTypeAn indication of the type of address contained in the
corresponding instance of cdpCacheSecondaryMgmtAddress.ro CiscoNetworkProtocol (CISCO-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.21 |
cdpCacheSecondaryMgmtAddrThis object indicates the alternate network layer
address at which the device will accept SNMP messages
as reported in the second address in the
Management-Address TLV of the most recently received
CDP message. If the corresponding instance of
cdpCacheSecondaryMgmtAddrType has the value 'ip(1)',
then this object would be an IP-address. If the
remote device reports the special value of the
IPv4 address 0.0.0.0, that address is recorded in
this object. If the most recently received CDP
message did not contain the Management-Address
TLV, or if that TLV contained only one address, then
this object is not instanstiated.ro CiscoNetworkAddress (CISCO-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.22 |
cdpCachePhysLocationIndicates the physical location, as reported by the most recent
CDP message, of a connector which is on, or physically connected
to, the remote device's interface over which the CDP packet is
sent. This object is not instantiated if no Physical Location
field (TLV) was reported by the most recently received CDP
message.ro DisplayString (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.23 |
cdpCacheLastChangeIndicates the time when this cache entry was last changed.
This object is initialised to the current time when the entry
gets created and updated to the current time whenever the value
of any (other) object instance in the corresponding row is
modified.ro TimeStamp (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.2.1.1.24 |
cdpCtAddressTableThe (conceptual) table containing the list of
network-layer addresses of a neighbor interface,
as reported in the Address TLV of the most recently
received CDP message. The first address included in
the Address TLV is saved in cdpCacheAddress. This
table contains the remainder of the addresses in the
Address TLV. SEQUENCE OF CdpCtAddressEntry .1.3.6.1.4.1.9.9.23.1.2.2 |
cdpCtAddressEntryAn entry (conceptual row) in the cdpCtAddressTable,
containing the information on one address received via CDP
on one interface from one device. Entries appear
when a CDP advertisement is received from a neighbor
device, with an Address TLV. Entries disappear when
CDP is disabled on the interface, or globally. An entry
or entries would also disappear if the most recently
received CDP packet contain fewer address entries in the
Address TLV, than are currently present in the CDP cache. CdpCtAddressEntry .1.3.6.1.4.1.9.9.23.1.2.2.1 |
cdpCtAddressIndexThe index of the address entry for a given
cdpCacheIfIndex,cdpCacheDeviceIndex pair. It
has the value N-1 for the N-th address in the
Address TLV Integer32 .1.3.6.1.4.1.9.9.23.1.2.2.1.3 |
cdpCtAddressTypeAn indication of the type of address contained in the
corresponding instance of cdpCtAddress.ro CiscoNetworkProtocol (CISCO-TC) .1.3.6.1.4.1.9.9.23.1.2.2.1.4 |
cdpCtAddressThe N-th network-layer address of the device as reported
in the most recent CDP message's Address TLV, where N-1 is
given by the value of cdpCtAddressIndex. For example, if
the the corresponding instance of cdpCtAddressType had the
value 'ip(1)', then this object would be an IPv4-address.
NOTE - The 1st address received in the Address TLV is
available using cdpCacheAddressro CiscoNetworkAddress (CISCO-TC) .1.3.6.1.4.1.9.9.23.1.2.2.1.5 |
cdpGlobal OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.23.1.3 |
cdpGlobalRunAn indication of whether the Cisco Discovery Protocol
is currently running. Entries in cdpCacheTable are
deleted when CDP is disabled.rw TruthValue (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.3.1 |
cdpGlobalMessageIntervalThe interval at which CDP messages are to be generated.
The default value is 60 seconds.rw INTEGER .1.3.6.1.4.1.9.9.23.1.3.2 |
cdpGlobalHoldTimeThe time for the receiving device holds CDP message.
The default value is 180 seconds.rw INTEGER .1.3.6.1.4.1.9.9.23.1.3.3 |
cdpGlobalDeviceIdThe device ID advertised by this device. The format of this
device id is characterized by the value of
cdpGlobalDeviceIdFormat object.ro DisplayString (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.3.4 |
cdpGlobalLastChangeIndicates the time when the cache table was last changed. It
is the most recent time at which any row was last created,
modified or deleted.ro TimeStamp (SNMPv2-TC) .1.3.6.1.4.1.9.9.23.1.3.5 |
cdpGlobalDeviceIdFormatCpbIndicate the Device-Id format capability of the device.
serialNumber(0) indicates that the device supports using
serial number as the format for its DeviceId.
macAddress(1) indicates that the device supports using
layer 2 MAC address as the format for its DeviceId.
other(2) indicates that the device supports using its
platform specific format as the format for its DeviceId.ro Bits .1.3.6.1.4.1.9.9.23.1.3.6 |
cdpGlobalDeviceIdFormatAn indication of the format of Device-Id contained in the
corresponding instance of cdpGlobalDeviceId. User can only
specify the formats that the device is capable of as
denoted in cdpGlobalDeviceIdFormatCpb object.
serialNumber(1) indicates that the value of cdpGlobalDeviceId
object is in the form of an ASCII string contain the device
serial number.
macAddress(2) indicates that the value of cdpGlobalDeviceId
object is in the form of Layer 2 MAC address.
other(3) indicates that the value of cdpGlobalDeviceId object
is in the form of a platform specific ASCII string contain
info that identifies the device. For example: ASCII string
contains serialNumber appended/prepened with system name.rw Enumeration .1.3.6.1.4.1.9.9.23.1.3.7 |
ciscoCdpMIBConformance OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.23.2 |
ciscoCdpMIBCompliances OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.23.2.1 |
ciscoCdpMIBGroups OBJECT IDENTIFIER .1.3.6.1.4.1.9.9.23.2.2 |