Optional) Configuring Ldp Mtu Signaling; Optional) Configuring An Inbound Ldp Policy - Huawei AR2200 Series Configuration Manual

Huawei AR2200 Series Enterprise Routers
Configuration Guide - MPLS
The MPLS LDP view is displayed.
Step 3 Run:
remote-peer auto-dod-request
The function of triggering a request to a downstream node for a label mapping message
associated with all remote LDP peers with a specified LSR ID in DoD mode.
----End

2.3.5 (Optional) Configuring LDP MTU Signaling

By configuring LDP MTU signaling, you can determine the size of MPLS packets to be
forwarded based on an MTU.
Context
LDP automatically computes the minimum MTU value of all interfaces on each LSP. Based on
the minimum MTU value, MPLS determines the size of packets to be forwarded on the ingress.
This prevents the forwarding failure that is caused by large packets on the transit LSR.
Perform the following steps on each LSR along an LSP:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
mpls ldp
The MPLS LDP view is displayed.
Step 3 Run:
mtu-signalling [ apply-tlv ]
The system is enabled to send the MTU TLV.
By default, the system sends the private MTU TLV.
----End

2.3.6 (Optional) Configuring an Inbound LDP Policy

By configuring an inbound LDP policy, you can prevent the establishment of unwanted LSPs
by an LSR to save device memory.
Context
By default, an LSR receives all label mapping messages, speeding up the convergence of LDP
LSPs. This results in the establishment of a large number of LSPs, wasting resources. An inbound
Issue 01 (2012-01-06)
NOTE
Enabling or disabling the sending of the MTU TLV may cause the original LDP session to be reestablished.
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2 MPLS LDP Configuration
37