HP 7000 dl Router manual Framing d4 esf, D4 superframe format SF, Esf Extended SF

SROS Command Line Interface Reference Guide T1 Interface Configuration Command Set

framing [d4 esf]

Use the framing command to configure the framing format for the T1 or DSX-1 interface. This parameter should match the framing format supplied by your network provider. Use the no form of this command to return to the default value.

Syntax Description

d4	D4 superframe format (SF)
esf	Extended SF

Default Values

<format>esf

Command Modes

(config-t1 1/1)#	T1 or DSX-1 Interface Configuration Mode required.
(config-t1 1/2)#

Functional Notes

A frame is comprised of a single byte from each of the T1’s timeslots; there are 24 timeslots on a single T1 circuit. Framing bits are used to separate the frames and indicate the order of information arriving at the receiving equipment. D4 and ESF are two methods of collecting and organizing frames over the circuit.

Usage Examples

The following example configures the T1 interface for D4 framing:

(config)#interface t1 1/1

(config-t1 1/1)#framing d4

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