Connectivity Fault Management Modes; Connectivity Fault Management Errors And Statistics - Avaya 2330 Manual

Ethernet Connectivity Fault Management

Connectivity Fault Management modes

The Secure Router 2330/4134 supports the following CFM modes:
• Routed mode, in which Secure Router 2330/4134 sends and receives untagged CFM
frames.
• Switched mode, which is, more specifically, one of the following:
- Access mode – Secure Router 2330/4134 can receive both VLAN tagged and
untagged CFM frames, but can send only untagged CFM frames.
- Hybrid mode – Secure Router 2330/4134 can receive both VLAN tagged and
untagged CFM frames. There are two options for sending CFM frames:
- Trunk mode – Secure Router 2330/4134 can receive and send only VLAN tagged
CFM frames.

Connectivity Fault Management errors and statistics

The heartbeat mechanism of CFM (using periodic CCM) makes it possible to detect a number
of errors and accumulate data for statistical purposes.
Inconsistent configuration of the devices in an MD or an MA, or inconsistent configuration of
the MEPs, remote MEPs, and so on in different nodes of the network can result in configuration
errors. The Secure Router 2330/4134 stores configuration errors in a database.
You use the show commands to view the information stored in the databases.
The databases contain data for each MEP in the Secure Router 2330/4134.
28 Configuration — Layer 2 Ethernet
• Egress tagged – sends VLAN tagged CFM frames
• Egress untagged – sends untagged CFM frames
Comments? infodev@avaya.com
July 2013