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4-4
Cisco AS5350 and Cisco AS5400 Universal Gateway Software Configuration Guide
OL-3418-02 B0
Chapter 4
Continuing Configuration Using the Command-Line Interface
Configuring CT1 Channel Groups
Configure
Perform the following task in controller configuration mode to define the channel groups and timeslots:
After you define the T1 channel groups, you can configure each channel group as a serial interface.
Meaning, you can think of each channel group as a virtual serial interface. Subinterface configuration is
also supported on the created serial interface.
Perform the following task in global configuration mode to enter interface configuration mode and
configure the serial interface that corresponds to a channel group:
Verify
The following example shows a channelized T1 controller configured for channel groups and an
ISDN PRI group. The pri-group command and the channel-group command cannot have overlapping
timeslots; note the correct timeslot configuration.
AS5350# show running-config
Building configuration...
Current configuration:
!
! Last configuration change at 15:49:30 UTC Mon Apr 3 2000 by admin
! NVRAM config last updated at 01:35:05 UTC Fri Mar 17 2000 by admin
!
version 12.0
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
!
---text omitted---
!
controller t1 1/0
channel-group 0 timeslot 1-6
channel-group 1 timeslot 7
Command
Purpose
AS5350(config-controller)# channel-group
number timeslots range [speed {48 | 56 |
64}]
Defines the channel group number and, if needed,
circuit speed.
1
Note
Working with your local service provider,
you can create channel-groups with from
1 to 24 timeslots. These timeslots can be
in any order, contiguous or noncontiguous.
1.
In the United States, channel-group speeds can be either 56 or 64 kbps; the default is 56 kbps. If 64 kbps is used, it is
recommended to be used with framing type of ESF and a linecode of B8ZS. The speed you select must match the speed
provided by the telephone company.
Command
Purpose
AS5350(config)# interface serial
slot/port:channel-group
Defines the serial interface for a CT1 channel
group.