Brocade 6910 Ethernet Access Switch Configuration Guide (Supporting R2.2.0.0) - Manual (Page 602)

546 Brocade 6910 Ethernet Access Switch Configuration Guide
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CFM Commands
Command Usage
• A link trace message is a multicast CFM frame initiated by a MEP, and forwarded from MIP to
MIP, with each MIP generating a link trace reply, up to the point at which the link trace
message reaches its destination or can no longer be forwarded.
• Use this command to enable the link trace cache to store the results of link trace operations
initiated on this device. Use the
ethernet cfm linktrace command to transmit a link trace
message.
• Link trace responses are returned from each MIP along the path and from the target MEP.
Information stored in the cache includes the maintenance domain name, MA name, MEPID,
sequence number, and TTL value.
Example
This example enables link trace caching.
Console(config)#ethernet cfm linktrace cache
Console(config)#
ethernet cfm linktrace cache hold-time
This command sets the hold time for CFM link trace cache entries. Use the no form to restore the
default setting.
Syntax
ethernet cfm linktrace cache hold-time minutes
minutes – The aging time for entries stored in the link trace cache. (Range: 1-65535
minutes)
Default Setting
100 minutes
Command Mode
Global Configuration
Command Usage
Before setting the aging time for cache entries, the cache must first be enabled with the
ethernet
cfm linktrace cache command.
Example
This example sets the aging time for entries in the link trace cache to 60 minutes.
Console(config)#ethernet cfm linktrace cache hold-time 60
Console(config)#