1706 ExtremeWare Software 7.3.0 Command Reference Guide
T1, E1, and T3 WAN Commands
configure ports t1 lbdetect
configure ports <portlist> t1 lbdetect [off | inband]
Description
Configures inband loopback detection on T1 links.
Syntax Description
Default
By default, loopback detection is off.
Usage Guidelines
When inband loopback detection is enabled, a specific sequence of data in the signal payload from the
remote end of the T1 link will cause the local end to enter network line loopback mode and send any
received signal back to the remote end.
Inband loopback detection is only possible if facility data link (FDL) is enabled and configured as
“ATT”. See the command
“configure ports t1 fdl” on page 1704 for more information.
Example
The following command enables inband loopback detection:
configure ports 4:1-4:2 t1 lbdetect inband
History
This command was first available in ExtremeWare v6.1.5w2.01WAN technology release.
This command was subsequently incorporated into ExtremeWare 7.0.0.
Platform Availability
This command is available on the Alpine 3800 series platform, when a WAN module is installed.
portlist A list of ports.
inband Specifies inband loopback detection.
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