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Configuration Guide - MPLS

S7700 and S9700 V200R010C00

This document describes MPLS configurations supported by the switch, including the principle and configuration procedures of static LSPs, MPLS LDP, MPLS TE, MPLS QoS, MPLS OAM, Seamless MPLS, and MPLS common features, and provides configuration examples.
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Configuration Task Summary

Configuration Task Summary

After basic functions of MPLS LDP are configured, you can build an MPLS network using LDP. To ensure network reliability and security, you need to perform other configuration in addition to MPLS LDP.

Table 3-5 describes the MPLS LDP configuration tasks.

Table 3-5  Configuration task summary of MPLS LDP




Configure basic functions of MPLS LDP

You can build an MPLS network and establish LDP LSPs only after basic functions of MPLS LDP are configured.

Configuring Basic Functions of MPLS LDP

Configure LDP reliability

The following reliability technologies can be used to improve MPLS network reliability:

  • BFD for LDP LSPs: quickly detects faults on an LDP LSP and triggers a traffic switchover upon an LDP LSP failure, minimizing packet loss.

  • Synchronization between LDP and IGP: solves the traffic loss problem when the primary LSP is faulty in networking where there are the primary and backup LSPs.

  • LDP fast reroute (LDP FRR): provides link backup on an MPLS network. When the primary LSP fails, traffic is quickly switched to the backup LSP, minimizing traffic loss.

  • LDP GR: ensures uninterrupted traffic transmission when an active/standby switchover or a protocol restart occurs on the neighboring device (GR Restarter). LDP GR helps GR Restarter to restart.

Configuring Static BFD to Detect an LDP LSP

Configuring Dynamic BFD for LDP LSPs

Configuring Synchronization Between LDP and IGP

Configuring LDP FRR

Configuring LDP GR

Configure LDP security mechanisms

LDP security mechanisms ensure security of LDP messages.

Configuring LDP Security Mechanisms

Configure non-labeled public network routes to be iterated to LSPs

After this configuration is performed on access devices, service data is forwarded to the Internet through tunnels. By doing this, core devices of the carrier do not need to learn many Internet routes, saving the routing table storage space and CPU resources.

Configuring Non-labeled Public Network Routes to Be Iterated to LSPs

Updated: 2019-08-21

Document ID: EDOC1000141902

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