Configuring Line Loopback - Cisco ASR 900 Series Configuration Manual

Configuring SDH
• network — Loops the signal from Rx to Tx path.

Configuring Line Loopback

To configure loopback:
enable
configure terminal
controller sdh 0/0/16
loopback [local | network]
end
Note To restore the system to its default condition, use the no form of the loopback command.
When loopback is configured as network, it is recommended to use the configuration of clock source as
Note
line.
AIS-Shut
Enables automatic insertion of a Line Alarm Indication Signal (LAIS) in the sent SDH signal whenever the
SDH port enters the administrative shutdown state.
Configuring AIS Shut
To configure AIS-Shut:
enable
configure terminal
controller sdh 0/0/16
ais-shut
end
The no ais-shut command does not send AIS.
Note
Shutdown
Disables the interface.
Configuring Shut
To configure Shut:
enable
configure terminal
controller sdh 0/0/16
1 port OC48/ 4 port OC12/OC3 + 12 port T1/E1 + 4 port T3/E3 CEM Interface Module Configuration Guide, Cisco IOS
XE Fuji 16.7.x (Cisco ASR 900 Series)
AIS-Shut
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