Accton Technology VS4512DC manual Efm interleave, No efm interleave

Command Line Interface

efm interleave

This command sets the interleave parameters for the selected VDSL port.

Syntax

efm interleave [downstream M value] [upstream M value] [downstream I value] [upstream I value]

no efm interleave

•M value – M is the interleaving depth index. Range: 0-64

•I value – I is the interleaving block length. Range: 4 or 8

Default Setting

•M – The interleaving depth index.

Upstream default value: 8, Downstream default value: 16

•I – The interleaving block length.

Upstream default value: 8, Downstream default value: 8

Command Mode

Interface Configuration

Command Usage

Interleaving improves Reed Solomon error correction when there is pulse noise. A greater degree of interleaving will provide more protection against pulse noise but will increase transmission delay and reduce the effective bandwidth of the link. The degree of interleaving can be increased by increasing M or I.

Example

The following example configures VDSL port 1 with:

•M - downstream value: 16, Upstream value: 8

•I - downstream value: 8, Upstream value: 8

Console#config
Console(config)#interface ethernet 1/1
Console(config-if)#efm interleave 16 8 8 8
Console(config-if)#end
Console#show controllers efm status link Ethernet 1/1
Interface	Link	SNR (dB)	RS Errs		Interleaver
		DS1 DS2 US1 US2		DS.M DS.I US.M US.I PBO
-------------	----	-------------------- -------- ------------------- ---
Ethernet 1/1	Up	43.0 35.0 45.0 43.0	0	16	8	8	8 on
Console#

Related Commands

efm noise-margin(4-107)

show controllers efm status (4-114)

4-106