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DES-7200 Configuration Guide Chapter 3 MPLS Reliability Configuration
3-34
z Backward direction link with IP
z Backward direction link with LDP LSP
LDP LSP carries the basic services of VPN/PW public network. Therefore, BFD for LDP LSP will
detect faults on the fundamental parts of VPN/PW public network. It can provide fast detection of
various MPLS-based network applications such as VPN FRR, PW FRR and etc, thus protecting
network services and enhancing the reliability of MPLS network.
3.2.1.4 Protocol specification
Related protocol specifications include:
z draft-ietf-bfd-base-09: Bidirectional Forwarding Detection
z draft-ietf-bfd-generic-05: Generic Application of BFD
z draft-ietf-bfd-mib-06: Bidirectional Forwarding Detection Management Information Base
z draft-ietf-bfd-v4v6-1hop-09: BFD for IPv4 and IPv6 (Single Hop)
z draft-ietf-bfd-multihop-07: BFD for IPv4 and IPv6 (Multihop)
z draft-ietf-bfd-mpls-07: BFD For MPLS LSPs
3.2.2 Default configurations
The following table describes the default configurations of BFD for static LSP.
Function Default setting
BFD operating mode Active mode. Currently only the active mode is
supported.
BFD detection mode Asynchronous mode. Currently only the
asynchronous mode is supported. Echo mode is
enabled by default.
BFD session parameters No default values. The parameters must be
configured manually.
BFD authentication mode Disabled. No authentication mode is supported
currently.
3.2.3 Configure BFD for static LSP
The following sections describe how to configure BFD for static LSP: