Enterasys Networks X-Pedition XSR CLI - Manual (Page 79)

T1/E1 & T3/E3 Commands
XSR CLI Reference Guide 2-73
Example
The following example configures the T3 controller in slot 1, card 2 with line source clocking, M13
framing, in unchannelized mode, cablelength of 250, DSU interoperability mode set to a Kentrox
DSU, DSU bandwidth of 44210, and scrambling enabled:
XSR(config)#controller t3 1/2/0
XSR(config-controller)#no channelized
XSR(config-controller)#clock source line
XSR(config-controller)#framing m13
XSR(config-controller)#cablelength 250
XSR(config-controller)#dsu mode kentrox
XSR(config-controller)#dsu bandwidth 44210
XSR(config-controller)#scramble
shutdown
This command disables disables a T1/E1/ISDN‐PRI controller or the T3/E3 controller and all
interfaces related to it. The command does not require any specific booting procedure and can be
performed dynamically during system run‐time. When the interface is created, it is disabled by
default.
Disabling a T3/E/3 controller causes a T3 port to transmit:
• An Alarm Indication Signal (AIS) for M13 framing.
• An idle signal (for C‐bit framing).
Ten seconds must elapse for alarms to clear after enabling a T3 port. Shutting down a controller
causes an E3 port to transmit AIS.
There is a short delay for alarms to clear after enabling an E3 port. It takes 10 seconds for alarms to
clear after enabling a T3 port.
Syntax
shutdown
Syntax of the “no” Form
The no form of this command restores the previously configured T1/E1 controller and interface.
Also, it re‐enables a T1/E1/ISDN‐PRI channel and associated serial interface:
no shutdown
Mode
Controller configuration: XSR(config-controller xx)#
Default
Disabled
Note: The AIS, also known as a blue alarm, is transmitted to notify the downstream device that an
upstream line failure has occurred.