D-Link DXS-3600-32S User Manual

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DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide

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38-25 explicit-null

This command is used to advertise an Explicit Null label in situations where it would normally advertise an Implicit Null

label. Use the no form of this command to restore the default value.

explicit-null

no explicit-null

38-26 md5 authentication

This command is used to enable the LDP authentication. Use the no form of this command to restore the default value.

md5 authentication

no md5 authentication

Usage Guideline

The path vector value is valid with the loop detection of the LDP instance enabled. If

the LDR ID number that is in the path vector list of the label mapping message or the

label request message of LDP is greater than the configured value, it is deemed that

a loop occurs.

Example

This example shows how to configure the maximum path vector to 30.

DXS-3600-32S#configure terminal

DXS-3600-32S(config)# mpls label protocol ldp

DXS-3600-32S(config-mpls-router)# mpls ldp max-path-vector 30

Parameters

None.

Default

Egress LSR advertise Implicit NULL label.

Command Mode

MPLS Router Configuration Mode.

Command Default Level

Level: 15.

Usage Guideline

This command is used to configure LDP Penultimate Hop Popping (PHP) behavior. If

the LSR is set to egress and the advertise label is an Implicit Null label, the upstream

will do Penultimate Hop Popping.

If the label distributed to Penultimate Hop is set to the Explicit NULL label, the

Penultimate Hop won’t pop it.

Example

This example shows how to configure the egress LSR advertise Explicit NULL label.