Table of Contents
Advertisement
Configuring an HDLC Channel
crc
idle-character
Copyright © 2010, Juniper Networks, Inc.
Example
host1(config-controll)#scramble
Use the no version to turn off cell scrambling on the interface.
If you issue the no version, be sure to issue the no dsu mode and no dsu bandwidth
commands. Otherwise, the interface might drop packets unexpectedly.
See scramble.
You must configure an HDLC channel for each T3 frame or E3 frame controller.
To configure an HDLC channel, configure a serial interface (for example, HDLC channel
in slot 0, 1).
host1(config)#interface serial 0/1
Optional Tasks
The following configuration tasks are optional when you configure an HDLC channel on
a T3/E3 frame interface:
Configure the cyclic redundancy check (CRC).
Configure the HDLC idle character.
Enable data inversion on the interface.
Set the time interval for monitoring bit and packet rates.
Set the maximum receive unit (MRU).
Set the maximum transmit unit (MTU).
Assign a text description or an alias to the serial interface.
Use to configure the size of the CRC.
Specify the number of bits per frame (16 or 32) that are used to calculate the frame
check sequence (FCS). Both the sender and receiver must use the same setting.
The CRC is an error-checking technique that uses a calculated numeric value to detect
errors in transmitted data.
A 32-bit CRC should be used to protect longer streams at faster rates and, therefore,
provide better ongoing error detection.
Example
host1(config-if)#crc 32
Use the no version to restore the default value, 16.
See crc.
Chapter 2: Configuring T3 and E3 Interfaces
57
Advertisement
Table of Contents
