Alcatel-Lucent 6850-48 ネットワークガイド
Configuring EFM (LINK OAM)
Configuring LINK OAM Loopback
OmniSwitch AOS Release 6 Network Configuration Guide
September 2009
page 16-11
Configuring LINK OAM Loopback
Remote loopback is most useful as a diagnostic tool, where it can be used to isolate problem segments in a
large network. See
large network. See
for more information.
Enabling and Disabling Remote loopback
LINK OAM loopback testing can be performed only after the LINK OAM connection is established and
the hosts are operating in active LINK OAM mode.
the hosts are operating in active LINK OAM mode.
When the remote-loopback is in process mode, the session started by peer LINK OAM client will be
processed by local LINK OAM port. As a result, remote port will be in remote-loopback state and the
local port will be local-loopback state.
processed by local LINK OAM port. As a result, remote port will be in remote-loopback state and the
local port will be local-loopback state.
Activate remote loop back processing on the port by using the
remote-loopback
command.
-> efm-oam port 2/1-10 remote-loopback process
When the remote-loopback is in ignore mode, the session started by peer LINK OAM will not be
processed by the local port.
processed by the local port.
For remote loop back processing to be ignored on the port, use the following command.
-> efm-oam port 2/1-10 remote-loopback ignore
After configuring the port to process remote loopback, the port should be initiated for loopback session to
start.
start.
-> efm-oam port 1/1 remote-loopback start
The above command will initiate the loopback control PDU towards the peer port to start. To stop the
remote-loopback sessionl, use the following command.
remote-loopback sessionl, use the following command.
-> efm-oam port 1/1 remote-loopback stop
To configure the number of frames to be sent by the current LINK OAM port to the remote port’s MAC
address (l1 ping) and the delay between each consecutive sent frames and to start the ping operation, use
the following command.
address (l1 ping) and the delay between each consecutive sent frames and to start the ping operation, use
the following command.
-> efm-oam port 1/20 l1-ping num-frames 12 delay 500 start
Note. By default, the number of frames value is 5 frames and the delay is set to 1000 milliseconds.