Juniper JUNOSE 11.1.X - LINK LAYER CONFIGURATION 4-7-2010 Configuration Manual page 66

JUNOSe 11.1.x Link Layer Configuration Guide
atm oam
NOTE: If you do not specify either segment or end-to-end loopback, the command
applies to both end-to-end and segment F4 OAM circuits.
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Configuring OAM
host1(config-if)#atm oam 10 seg-loopback cc source
Use to configure F4 OAM on an interface or circuit. F4 OAM is configured at the
interface level unless you specify a VPI.
To open F4 OAM on either a segment or end-to-end basis, use the following
keywords:
seg-loopback Enables F4 segment OAM
end-loopback Enables F4 end-to-end OAM
To configure CC cell flow on the PVC, use the following keywords:
both Enables the PVC as both the source and the sink endpoints.
sink Enables the PVC as the sink endpoint.
source Enables the PVC as the source endpoint.
loopback-timer When F4 OAM is enabled, the interface or circuit accepts
and responds to F4 OAM cells. However, to generate F4 loopback cells, you
must configure the loopback timer in the range 1–600 seconds. This timer
represents the frequency with which F4 loopback cells are transmitted. You
can set the loopback timer only for end-to-end loopback.
Example 1 Opens both F4 end-to-end and segment OAM circuits for VPI 8
host1(config-if)#atm oam 8
Example 2 Opens the F4 end-to-end OAM circuit for VPI 10 and enables sending
F4 end-to-end loopback cells on the circuit at a frequency of 20 seconds
host1(config-if)#atm oam 10 end-loopback loopback-timer 20
Example 3 Opens both F4 end-to-end and segment OAM circuits on all VPs on
this interface
host1(config-if)#atm oam
Example 4 Opens F4 segment OAM circuits on all VPs on this interface
host1(config-if)#atm oam seg-loopback
Example 5 Opens F4 end-to-end loopback on VPI 12
host1(config-if)#atm oam 12 end-loopback
Example 6 Opens an F4 segment OAM circuit for VPI 8 and enables CC cell
generation on the segment