Maintenance Intermediate Point - Avaya 2330 Manual

Ethernet Connectivity Fault Management
Figure 5: Linktrace message and reply
You initiate the LTM with a command. When you issue the LTM command, the CLI gives the
session ID for that test and exits. The LTRs are appended to this session in the Linktrace cache
based on the transaction ID. Use the show cfm linktrace-cache <session-id>
command to view results.
Fault notification
The Secure Router 2330/4134 provides fault notification through CLI event messages and
error logs.

Maintenance Intermediate Point

MIPs are internal to an MD (that is, MIPs are never at the boundary of an MD). MIPs respond
to connectivity fault management frames only when triggered by linktrace and loopback
messages. MIPs are associated with an MD, and not with any specific MA. An MIP can
participate in connectivity fault management of one service instance, or an MIP can participate
in CFM of many service instances that have the same MD level as the MIP.
MIPs do not initiate any connectivity fault management messages. MIPs passively receive
connectivity fault management messages, process the messages received, and respond to
the originating MEP. By responding to received connectivity fault management messages,
26 Configuration — Layer 2 Ethernet
Comments? infodev@avaya.com
July 2013