DefinitionTLV
Advertises the system’s configured VTP management domain
name-string. Used by network operators to verify VTP domain
configuration in adjacent network nodes.
VTP Management Domain TLV
Indicates, per interface, the assumed VLAN for untagged packets on
the interface. CDP learns the native VLAN for an interface. This
feature is implemented only for interfaces that support the
IEEE 802.1Q protocol.
Native VLAN TLV
Indicates status (duplex configuration) of CDP broadcast interface.
Used by network operators to diagnose connectivity problems between
adjacent network elements.
Full/Half Duplex TLV
How to Implement CDP on Cisco IOS XR Software
Enabling CDP
To enable CDP, you must first enable CDP globally on the router and then enable CDP on a per-interface
basis. This task explains how to enable CDP globally on the router and then enable CDP on an interface.
SUMMARY STEPS
1.
configure
2.
cdp
3.
interface type interface-path-id
4.
cdp
5.
commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enables CDP globally.cdp
Example:
RP/0/RSP0/CPU0:router(config)# cdp
Step 2
Enters interface configuration mode.
interface type interface-path-id
Example:
RP/0/RSP0/CPU0:router(config)# interface pos 0/0/0/1
Step 3
Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide, Release 5.1.x
397
Implementing CDP
How to Implement CDP on Cisco IOS XR Software