show ethernet cfm ccm-learning-database
To display the Continuity Check Message (CCM) learning database, use the
show ethernet cfm
ccm-learning-database
command in EXEC configuration mode.
show ethernet cfm ccm-learning-database
[
location node-id
]
Syntax Description
(Optional) Displays the CFM CCM learning database for the designated node.
The
node-id
argument is entered in the
rack
/
slot
/
module
notation.
location node-id
Command Default
All CFM ccm-learning-databases on all interfaces are displayed.
Command Modes
EXEC (#)
Command History
Modification
Release
This command was introduced.
Release 3.7.2
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task
IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator
for assistance.
The CCM Learning Database is populated by MEPs and MIPs that have received continuity-check messages
(CCMs). The information in the CCM Learning Database is used to reply to traceroutes when no applicable
entries are found in the main MAC learning table.
Task ID
Operations
Task ID
read
ethernet-services
Examples
The following example shows how to display all the CFM CCM learning databases on all interfaces:
RP/0/RSP0/CPU0:router#
show ethernet cfm ccm-learning-database
Location 0/0/CPU0:
Domain/Level
Service
Source MAC
Interface
---------------------- -------------------- -------------- ------------------
foo/2
foo
0001.0203.0401 Gi0/0/0/0
foo/2
foo
0001.0203.0402 PW
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
320
Ethernet OAM Commands on the Cisco ASR 9000 Series Router
show ethernet cfm ccm-learning-database