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Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
Release
12.2(33)MRA
15.0(1)MR
Usage Guidelines
Errors that are logged and that the show ethernet cfm errors command displays depend on the version
of CFM that is running. Errors include the following:
•
•
•
•
•
•
•
Error conditions are kept in a log for the duration of the archive hold time configured on the maintenance
domain or until the error condition is cleared, whichever occurs first.
Examples
The following example shows CFM IEEE sample output from a show ethernet cfm errors command
using none of the optional keywords or arguments:
Router# show ethernet cfm errors
--------------------------------------------------------------------------------
MPID Domain Id
--------------------------------------------------------------------------------
37
401
301
Table 17
Table 17
Field
MPID
Domain Id
Mac Address
OL-23890-01
Modification
This command was integrated into Cisco IOS Release 12.2(33)MRA.
This command was integrated into Cisco IOS Release 15.0(1)MR. This
release does not support the level keyword used to configure CFM Draft 1.0.
MEP-Down—Maintenance End Point (MEP) timed out or is advertising a 0 lifetime.
Configuration Error—A continuity check message (CCM) is received that has an maintenance point
ID (MPID) matching the local device, but the source MAC address is different.
Forwarding Loop—A CCM is received, that has the same MPID and same MAC address as the local
device.
Cross-connected—A CCM is received and the service ID does not match the service ID configured
on the device for that VLAN.
Cross-check Missing MEP—The cross-checking delay timer has expired, and the configured remote
MEP did not come up.
Cross-check Unknown MEP—An unexpected remote MEP came up.
Receive AIS—A MEP detects a mismerge, which is an unexpected MEP condition, or a signal fail
condition resulting in peer MEPs receiving an alarm indication signal (AIS) frame.
MAName
Domain_port
portmep
Domain_L5
cust_500_l5
Domain_L7
cust_700_l7
describes the significant fields shown in the display.
show ethernet cfm errors Field Descriptions
Mac Address
Reason
aabb.cc03.ba00
Lifetime Timer Expired 89s
aabb.cc03.bb99
Lifetime Timer Expired 88s
aabb.cc03.bb99
Lifetime Timer Expired 86s
Description
Identifier of the MEP on which the error occurred.
Identifier of the domain affected by the error.
MAC address of the remote MEP on which the error
occurred.
Cisco MWR 2941 Router Command Reference, Release 15.0(1)MR
show ethernet cfm errors
Type
Id
Lvl
Age
Port
none 0
Vlan
9
5
Vlan
11
7
493
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