Juniper JUNOSE SOFTWARE 11.2.X - LINK LAYER CONFIGURATION GUIDE 7-7-2010 Configuration Manual page 64

JunosE 11.2.x Link Layer Configuration Guide
atm oam
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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
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.
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
host1(config-if)#atm oam 8 seg-loopback cc source
Use the no version to delete F4 OAM circuits. Using the options, you can delete all F4
OAM circuits on the interface, segment or end-to-end F4 OAM circuits, or F4 OAM
circuits on a specific VPI.
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