mtu-signalling

Format

mtu-signalling

mtu-signalling apply-tlv

undo mtu-signalling

undo mtu-signalling apply-tlv

Parameters

Parameter	Description	Value
apply-tlv	Indicates the type of MTU TLV carried in Label Mapping messages to be sent. After this parameter is configured, the implementation is in compliance with relevant RFC standards. If this parameter is not configured, the implementation is in compliance with draft-ietf-mpls-ldp-mtu-extensions.	-

Parameter

Description

Value

apply-tlv

Indicates the type of MTU TLV carried in Label Mapping messages to be sent. After this parameter is configured, the implementation is in compliance with relevant RFC standards. If this parameter is not configured, the implementation is in compliance with draft-ietf-mpls-ldp-mtu-extensions.

-

Views

MPLS-LDP view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
mpls-ldp	write

Usage Guidelines

Usage Scenario

If different types of links on an MPLS network support different MTU values, this function enables devices to negotiate MTU values, prevents packets from being discarded if the packet size exceeds an MTU.

Precautions

By default, after MPLS LDP is globally enabled, a device sends Label Mapping messages carrying an MTU TLV in compliance with draft-ietf-mpls-ldp-mtu-extensions. If an LDP peer does not identify the MTU TLV carried in a received message, the peer must process the TLV as an unknown TLV defined in relevant RFC standards.

Example

# Enable a Label Mapping message to be sent to carry an MTU TLV defined in relevant RFC standards.

<HUAWEI> system-view
[~HUAWEI] mpls
[*HUAWEI-mpls] quit
[*HUAWEI] mpls ldp
[*HUAWEI-mpls-ldp] mtu-signalling apply-tlv