Extreme Networks WM-4T1i - Manual (Page 24)

2-10 WM-4T1i Module Installation and User Guide
Configuring the T1 Physical Link
remote end removes the framing bits from the received signal and recovers the
transmitted data. This same data is then reframed and transmitted back to the local end.
Enabling Loopback Mode
To enable a loopback mode, use one of the following commands:
enable ports t1 loopback local
enable ports t1 loopback network [line | payload]
enable ports t1 loopback remote [line | payload]
Disabling Loopback Mode
Use the following command to return the near and remote side of a T1 loopback mode
to normal mode:
disable ports t1 loopback
You can also use the following command to return the remote port to normal function
from loopback mode:
enable ports t1 loopback remote loopdown
T1 Port Monitoring Commands
Table 2-2 describes the commands used to monitor a T1 port.
Table 2-2: T1 Port Monitoring Commands
Command Description
disable ports t1 loopback Disable the current loopback mode and return
to normal function.
enable ports t1 loopback [local
| network [line | payload] | remote [line
| payload | loopdown]] Enable the port to locally loopback, to cause
the remote link to loopback, and to stop the
loopback.
show ports {} {t1} stats Displays real-time port statistics.
show ports {} t1 alarms Displays real-time port alarms.
show ports {} t1 configuration Displays the port configuration and status.