HP 7000 dl Router manual Data-coding scrambled

SROS Command Line Interface Reference Guide DDS Interface Configuration Command Set

data-coding scrambled

Use the data-coding scrambled command to enable the DDS OS scrambler to combine user data with pattern data to ensure user data does not mirror standard DDS loop codes. The scrambler may only be used on 64 kbps circuits without Frame Relay signaling (clear channel).

Syntax Description

No subcommands.

Default Values

By default, the scrambler is disabled.

Command Modes

(config-dds 1/1)# 56K/64K (DDS) Interface Configuration Mode required

Functional Notes

When operating at 64 kbps (clear channel operation), there is a possibility the DTE data sequences may mimic network loop maintenance functions and erroneously cause other network elements to activate loopbacks. Use the data-coding scrambled command to prevent such occurrences. Do not use this command if using Frame Relay or if using PPP to another device other than an Secure Router OS product also running scrambled.

Usage Examples

The following example enables the DDS OS scrambler:

(config)#interface dds 1/1 (config-dds 1/1)#data-coding scrambled

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