Ethernet cfm enable – Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) User Manual
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Brocade 6910 Ethernet Access Switch Configuration Guide
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CFM Commands
for all interconnection points within an MA, regardless of the domain’s level in the
maintenance hierarchy (e.g., customer, provider, or operator). While the explicit option only
generates MIPs within an MA if its associated domain is not at the bottom of the maintenance
hierarchy. This option is used to hide the structure of network at the lowest domain level.
The diagnostic functions provided by CFM can be used to detect connectivity failures between
any pair of MEPs in an MA. Using MIPs allows these failures to be isolated to smaller segments
of the network.
Allowing the CFM to generate MIPs exposes more of the network structure to users at higher
domain levels, but can speed up the process of fault detection and recovery. This trade-off
should be carefully considered when designing a CFM maintenance structure.
Also note that while MEPs are active agents which can initiate continuity check messages
(CCMs), transmit loop back or link trace messages, and maintain the local CCM database.
MIPs, on the other hand are passive agents which can only validate received CFM messages,
and respond to loop back and link trace messages.
The MIP creation method defined by the
command takes precedence over the
method defined by this command.
Example
This example creates a maintenance domain set to maintenance level 3, and enters CFM
configuration mode for this domain.
Console(config)#ethernet cfm domain index 1 name voip level 3 mip-creation
explicit
Console(config-ether-cfm)#
Related Commands
ethernet cfm enable
This command enables CFM processing globally on the switch. Use the no form to disable CFM
processing globally.
Syntax
[no] ethernet cfm enable
Default Setting
Disabled
Command Mode
Global Configuration
Command Usage
•
To avoid generating an excessive number of traps, the complete CFM maintenance structure
and process parameters should be configured prior to globally enabling CFM processing with
this command. Specifically, the maintenance domains, maintenance associations, and MEPs
should be configured on each participating bridge.
•
When CFM is enabled, hardware resources are allocated for CFM processing.