Configuring F4 Oam - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - LINK LAYER CONFIGURATION GUIDE 2010-10-13 Configuration Manual

JunosE 11.3.x Link Layer Configuration Guide

Configuring F4 OAM

atm oam
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The ATM interface does not support sending F4 segment loopback cells, but it does
respond to F4 segment loopback cells that it receives.
F4 OAM flows need their own channel, and they are identified by the VCI on which they
are sent or received. The following VCIs are reserved for F4 OAM flows for each virtual
path, and you cannot open PVCs on them:
VCI 3—For segment F4 flows
VCI 4—For end-to-end F4 flows
NOTE: You cannot enable both loopback cells and CC cells at the same
time.
To set up F4 OAM:
Enable F4 OAM on an interface or VP. The router enables F4 OAM at the interface
1.
level unless you specify a VPI. This example opens both segment and end-to-end F4
OAM circuits on VPI 10.
host1(config-if)#atm oam 10
(Optional) Enable only segment or end-to-end loopback.
2.
host1(config-if)#atm oam 10 seg-loopback
host1(config-if)#atm oam 10 end-loopback
(Optional) To cause the interface to generate end-to-end loopback cells in addition
3.
to receiving and responding to them, set the loopback timer.
host1(config-if)#atm oam 10 end-loopback loopback-timer 20
(Optional) Enable CC cell flows.
4.
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
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:
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