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Configuration Guide - VPN 01

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Configuration Guide - VPN
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Configuring Static PW FRR

Configuring Static PW FRR

Static pseudo wire (PW) fast reroute (FRR) enables service traffic to be promptly switched to the secondary PW if the primary PW fails. After the primary PW recovers, static PW FRR determines whether to switch service traffic back to the primary PW based on the configured revertive switching policy.

Usage Scenario

Pseudo wire emulation edge-to-edge (PWE3) demands high network reliability. To prevent negative factors, such as device power failures, from affecting services, configure static PW FRR and dynamic BFD for PW.

On the network shown in Figure 7-15, a pair of primary and secondary SVC PWs are established between PE1 and PE2. If BFD detects a fault on the primary PW, traffic will be switched to the secondary PW. After the primary PW recovers, traffic will be switched back to the primary PW based on the configured revertive switching policy.

Figure 7-15 Static PW FRR networking

Pre-configuration Tasks

Before configuring static PW FRR, complete the following tasks:

  • Configure interface IP addresses and an Interior Gateway Protocol (IGP) on PEs and SPEs.

  • Configure basic MPLS functions on PEs and SPEs.

  • Establish MPLS tunnels between PEs and SPEs.

  • Configure CEs to access PEs.

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Updated: 2019-01-14

Document ID: EDOC1100058925

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