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

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host1(config-if)# loopback diagnostic
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Use the no version to remove any loopback.
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See loopback.
Configuring OAM
This section explains:
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Configuring F4 OAM on page 33
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Configuring F5 OAM on page 35
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Setting a Loopback Location ID on page 36
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Enabling OAM Flush on page 37
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Running ATM Ping on page 38
Configuring F4 OAM
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:
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VCI 3—For segment F4 flows
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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:
1.
Enable F4 OAM on an interface or VP. The router enables F4 OAM at the interface
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
2.
(Optional) Enable only segment or end-to-end loopback.
host1(config-if)# atm oam 10 seg-loopback
host1(config-if)# atm oam 10 end-loopback
3.
(Optional) To cause the interface to generate end-to-end loopback cells in addition
to receiving and responding to them, set the loopback timer.
host1(config-if)# atm oam 10 end-loopback loopback-timer 20
4.
(Optional) Enable CC cell flows.
Configuring OAM
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Chapter 1: Configuring ATM