Creating A Maintenance Association; Configuring The Continuity Check Protocol - Juniper JUNOS OS 10.3 - SOFTWARE Manual

Complete Software Guide for Junos
3770
®
OS for EX Series Ethernet Switches, Release 10.3
function value for all maintenance domains and maintenance associations must be the
same.
To configure the MIP half function:
[edit protocols oam ethernet connectivity-fault-management maintenance-domain
domain-name]
user@switch# set mip-half-function (none | default | explicit)

Creating a Maintenance Association

In a CFM maintenance domain, each service instance is called a maintenance association.
To create a maintenance association:
[edit protocols oam ethernet connectivity-fault-management maintenance-domain
domain-name]
user@switch# set maintenance-association ma-name

Configuring the Continuity Check Protocol

The continuity check protocol is used for fault detection by a maintenance association
end point (MEP) within a maintenance association. The MEP periodically sends continuity
check multicast messages. The receiving MEPs use the continuity check messages (CCMs)
to build a MEP database of all MEPs in the maintenance association.
To configure the continuity check protocol:
Enable the continuity check protocol:
1.
[edit protocols oam ethernet connectivity-fault-management
maintenance-domain domain-name maintenance-association ma-name]
user@switch# set continuity-check
Specify the continuity check hold interval. The hold interval is the number of minutes
2.
to wait before flushing the MEP database if no updates occur. The default value is 10
minutes.
[edit protocols oam ethernet connectivity-fault-management
maintenance-domain domain-name maintenance-association ma-name
continuity-check]
user@switch# set hold-interval number
Specify the CCM interval. The interval is the time between the transmission of CCMs.
3.
You can specify 10 minutes (10m), 1 minute (1m), 10 seconds (10s), 1 second (1s), 100
milliseconds (100ms), or 10 milliseconds (10ms).
[edit protocols oam ethernet connectivity-fault-management
maintenance-domain domain-name maintenance-association ma-name
continuity-check]
user@switch# set interval number
Specify the number of CCMs (that is, protocol data units) that can be lost before the
4.
MEP is marked as down. The default number of protocol data units (PDUs) is 3.
[edit protocols oam ethernet connectivity-fault-management
maintenance-domain domain-name maintenance-association ma-name
continuity-check]
user@switch# set loss-threshold number
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