Cisco ASR 1000

19-13
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
OL-14127-08
Chapter 19 Configuring the 1-Port Channelized OC-3/STM-1 SPA and 1-Port Channelized OC-12/STM-4 SPA
Configuration Tasks
Configuring Unchannelized E3 Serial Interface
Note In Cisco IOS XE Release 2.6, E3 is not supported on the 1-Port Channelized OC-12/STM-4 SPA.
Note E3 channelization is not supported.
To configure an unchannelized E3 serial interface, complete the following:
Step 6
Router(config-controller)# e1 e1#
loopback [local | network]
Specifies a loopback on an E1 line, where:
• e1#—A number in the range of 1 to 3.
• local loopback—(Optional) Loops data from the transmit
path to the receive path.
• network loopback—(Optional) Loops data received on the
external port to the transmit path and back out the external
port.
Step 7
Router(config-controller)# e1 e1#
shutdown
Shuts down an individual E1 line, where:
• e1#—A number in the range of 1 to 3.
Command Purpose
Command Purpose
Step 1
Router(config-controller)# dsu
mode {cisco | digital-link |
kentrox}
Specifies the interoperability mode used by a T3 or E3 controller,
where:
• cisco—Specifies cisco as the data service unit (DSU) mode.
• digital-link—Specifies Digital link as the DSU mode. Range
is from 300-34010.
• kentrox—Specifies kentrox as the DSU mode. Range is
1000-24500, or 34010.
The default is cisco.
Step 2
Router(config-controller)# dsu
bandwidth number
Specifies the maximum allowed bandwidth in kbps, where:
• number—Allowed values are 0 to 34368. The default is
34368.
Step 3
Router(config-controller)#
scramble
Enables scrambling for the E3 physical layer interface. The
default is no scramble.
Step 4
Router(config-controller)#
national bit {0 | 1}
Sets the national reserved bits on an E3 line. The default is 0.