Mpls Ldp Configuration - Huawei AR1200 Series Configuration Manual - Mpls

Huawei AR1200 Series Enterprise Routers
Configuration Guide - MPLS
About This Chapter
MPLS LDP defines the messages used during label distribution and the processing of the
messages that are used to negotiate parameters between LSRs and allocate labels to set up an
LSP.
2.1 Instruction to MPLS LDP
MPLS LDP, a label distribution protocol, is widely used for transmitting VPN services. Its
networking and configurations are simple. MPLS LDP supports route-driven establishment of
a large number of LSPs.
2.2 MPLS LDP Features Supported by the AR1200
The AR1200 supports LDP sessions, LDP LSPs, the inter-area LDP extension, and reliability.
2.3 Configuring a Local LDP Session
A local LDP session must be established between each pair of directly connected LSRs on an
LSP before the LSP is established.
2.4 Configuring a Remote LDP Session
The remote LDP session is set up between two indirectly connected LSRs or directly connected
LSRs.
2.5 Configuring LDP LSPs
LDP can distribute labels to establish LSPs in an MPLS domain.
2.6 Configuring LDP Extension for Inter-Area LSP
Configuring LDP extension for inter-area LSP enables LDP to search for routes based on the
longest match rule to establish inter-area LDP LSPs.
2.7 Configuring Synchronization Between LDP and IGP
By configuring LDP and IGP synchronization, you can delay the route switchback by
suppressing the setup of an IGP neighbor relationship until an LDP session is established.
2.8 Configuring Synchronization Between LDP and Static Routes
By configuring synchronization between LDP and static routes, you can switch traffic from a
faulty primary link to the backup link by suppressing the activation of static routes. You can
also delay traffic switchback to synchronize LDP and static routes.
2.9 Configuring LDP GTSM
Issue 01 (2011-12-30)
2

MPLS LDP Configuration

Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2 MPLS LDP Configuration
15