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DES-7200 Configuration Guide Chapter 3 MPLS Reliability Configuration
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3.2.5 Typical BFD for static LSP
configuration example
3.2.5.1 Networking requirements
1) Configure BFD to detect the connectivity of static LSP. As shown in Fig 2, there are two
links between PE1 and PE2.
2) Specifically:
3) PE1, PE2, P1 and P2 form the MPLS network.
4) There is a static LSP between PE1 -> P1 -> PE2 (static LSP1). Configure BFD for this static
LSP.
5) There is a static LSP between PE2 -> P2 -> PE1 (static LSP2). Configure BFD for this static
LSP, and advertise the fault detected to PE1 (backward direction link adopting LSP).
6) When static LSP1 fails, PE1 can quickly be notified of the fault and take the corresponding
measure: delete MPLS static route.
3.2.5.2 Network topology
Fig 25 Network topology of BFD for static LSP configuration
3.2.5.3 Configuration tips
Configuration tips for respective nodes are shown below:
1) Configure IP address and OSPF protocol on the interface of respective nodes.
2) Configure global and interface MPLS capability on respective nodes.
3) Configure MPLS static route so that the network can forward MPLS traffic.
4) Configure BFD for static LSP1 on PE1.