R3102-R3103-HP 6600/HSR6600 Routers Interface Configuration Guide

29
Configuring a CT1 interface
A CT1 interface can operate only in channelized mode. When it is working as a CT1 interface, all the
timeslots (numbered 1 to 24) can be randomly divided into groups. Each of these groups can form one
channel set for which the system automatically creates an interface logically equivalent to a synchronous
serial interface. This interface supports link layer protocols such as PPP, HDLC, and FR, and network
protocol IP.
Configuring a CT1 interface in CT1 mode
Ste
p
Command Remarks
1. Enter system view.
system-view
N/A
2. Enter CT1 interface view.
controller t1 number N/A
3. Bundle timeslots on the
interface into a channel
set.
channel-set set-number
timeslot-list list [ speed { 56k |
64k } ]
Up to 24 channel sets can be bundled.
The default timeslot speed is 64 kbps.
4. Set other interface
parameters.
See "Configuring other CT1
interface parameters."
Optional.
For each channel set, the system automatically creates a serial interface named serial number:set-number.
This interface is logically equivalent to a synchronous serial interface where you can make other
configurations about:
• Data link protocol such as PPP and FR
• IP addressing
Configuring other CT1 interface parameters
To configure other CT1 interface parameters:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter CT1 interface view.
controller t1 number N/A
3. Configure the interface
description.
description text
Optional.
By default, the description of an
interface is interface-name
Interface.
4. Set the physical state change
suppression interval on the CT
1 interface.
link-delay delay-time
By default, physical state change
suppression is disabled.
5. Set the cable length and
attenuation.
cable long { 0db | -7.5db | -15db
| -22.5db }
cable short { 133ft | 266ft | 399ft
| 533ft | 655ft }
Optional.
The long 0db keyword applies by
default.