C
HAPTER
41
| CFM Commands
Continuity Check Operations
– 1339 –
Continuity Check Operations
ethernet cfm cc ma
interval
This command sets the transmission delay between continuity check
messages (CCMs). Use the no form to restore the default settings.
SYNTAX
ethernet cfm cc md domain-name ma ma-name
interval interval-level
no ethernet cfm cc ma ma-name interval
domain-name – Domain name. (Range: 1-43 alphanumeric
characters)
ma-name – Maintenance association name. (Range: 1-43
alphanumeric characters)
interval-level – The transmission delay between connectivity check
messages. The setting for this parameter is expressed as levels 4
through 7, which in turn map to specific intervals of time.
(CCM lifetime field options: 4 - 1 second, 5 - 10 seconds,
6 - 1 minute, 7 - 10 minutes)
DEFAULT SETTING
4 (100 ms)
COMMAND MODE
Global Configuration
COMMAND USAGE
â—† CCMs provide a means to discover other MEPs and to detect
connectivity failures in an MA. If any MEP fails to receive three
consecutive CCMs from any other MEPs in its MA, a connectivity failure
is registered. The interval at which CCMs are issued should therefore be
configured to detect connectivity problems in a timely manner, as
dictated by the nature and size of the MA.
â—† The maintenance of a MIP CCM database by a MIP presents some
difficulty for bridges carrying a large number of Service Instances, and
for whose MEPs are issuing CCMs at a high frequency. For this reason,
slower CCM transmission rates may have to be used.
EXAMPLE
This example sets the transmission delay for continuity check messages to
level 7 (60 seconds).
Console(config)#ethernet cfm cc md voip ma rd interval 7
Console(config)#
RELATED COMMANDS
ethernet cfm cc enable (1340)
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