Configuring BFD for CR-LSP

Procedure

• Configure SPEs.

  The following uses the configuration of Core_SPE1 on the core ring as an example. The configurations of Core_SPE2 and Core_SPE3 are similar to the configuration of Core_SPE1, and are not mentioned here.

  bfd SPE1toUPE1_b bind mpls-te interface Tunnel611 te-lsp backup    //Enable static BFD to detect the backup CR-LSP of TE tunnel 611.
   discriminator local 6116    //Set the local discriminator. The local discriminator of the local system must be the same as the remote discriminator of the remote system.
   discriminator remote 6115    //Set the remote discriminator.
   detect-multiplier 8    //Set the local detection multiplier of BFD.
   min-tx-interval 3    //Set the minimum interval at which the local device sends BFD packets to 3.3 ms.
   min-rx-interval 3    //Set the minimum interval at which the local device receives BFD packets to 3.3 ms.
   process-pst    //Allow BFD sessions to change the PST to speed up switchovers.
   commit    //Commit the BFD session configuration.
  #
  bfd SPE1toUPE1_m bind mpls-te interface Tunnel611 te-lsp    //Enable static BFD to detect the primary CR-LSP of TE tunnel 611.
   discriminator local 6112
   discriminator remote 6111
   detect-multiplier 8
   min-tx-interval 3
   min-rx-interval 3
   process-pst
   commit
  #
  bfd SPE1toUPE2_b bind mpls-te interface Tunnel622 te-lsp backup    //Enable static BFD to detect the backup CR-LSP of TE tunnel 622.
   discriminator local 6226
   discriminator remote 6225
   detect-multiplier 8
   min-tx-interval 3
   min-rx-interval 3
   process-pst
   commit
  #
  bfd SPE1toUPE2_m bind mpls-te interface Tunnel622 te-lsp    //Enable static BFD to detect the primary CR-LSP of TE tunnel 622.
   discriminator local 6222
   discriminator remote 6221
   detect-multiplier 8
   min-tx-interval 3
   min-rx-interval 3
   process-pst
   commit
  #
  bfd SPE1toUPE5_b bind mpls-te interface Tunnel721 te-lsp backup    //Enable static BFD to detect the backup CR-LSP of TE tunnel 721.
   discriminator local 7216
   discriminator remote 7215
   detect-multiplier 8
   min-tx-interval 3
   min-rx-interval 3
   process-pst
   commit
  #
  bfd SPE1toUPE5_m bind mpls-te interface Tunnel721 te-lsp    //Enable static BFD to detect the primary CR-LSP of TE tunnel 721.
   discriminator local 7212
   discriminator remote 7211
   detect-multiplier 8
   min-tx-interval 3
   min-rx-interval 3
   process-pst
   commit
  #
  bfd SPE1toUPE6_b bind mpls-te interface Tunnel711 te-lsp backup    //Enable static BFD to detect the backup CR-LSP of TE tunnel 711.
   discriminator local 7116
   discriminator remote 7115
   detect-multiplier 8
   min-tx-interval 3
   min-rx-interval 3
   process-pst
   commit
  #
  bfd SPE1toUPE6_m bind mpls-te interface Tunnel711 te-lsp    //Enable static BFD to detect the primary CR-LSP of TE tunnel 711.
   discriminator local 7112
   discriminator remote 7111
   detect-multiplier 8
   min-tx-interval 3
   min-rx-interval 3
   process-pst
   commit
  #

• Configure UPEs.

  The following uses the configuration of Site1_UPE1 as an example. The configurations of Site1_UPE2, Site2_UPE3, Site2_UPE4, Site3_UPE5, and Site3_UPE6 are similar to the configuration of Site1_UPE1, and are not mentioned here.

  bfd UPE1toSPE1_m_b bind mpls-te interface Tunnel611 te-lsp backup    //Enable static BFD to detect the backup CR-LSP of TE tunnel 611.
   discriminator local 6115    //Set the local discriminator. The local discriminator of the local system must be the same as the remote discriminator of the remote system.
   discriminator remote 6116    //Set the remote discriminator.
   detect-multiplier 8    //Set the local detection multiplier of BFD.
   min-tx-interval 3    //Set the minimum interval at which the local device sends BFD packets to 3.3 ms.
   min-rx-interval 3    //Set the minimum interval at which the local device receives BFD packets to 3.3 ms.
   process-pst    //Allow BFD sessions to change the PST to speed up switchovers.
   commit    //Commit the BFD session configuration.
  #
  bfd UPE1toSPE1_m bind mpls-te interface Tunnel611 te-lsp    //Enable static BFD to detect the primary CR-LSP of TE tunnel 611.
   discriminator local 6111
   discriminator remote 6112
   detect-multiplier 8
   min-tx-interval 3
   min-rx-interval 3
   process-pst
   commit
  #
  bfd UPE1toSPE2_b bind mpls-te interface Tunnel612 te-lsp backup    //Enable static BFD to detect the backup CR-LSP of TE tunnel 612.
   discriminator local 6125
   discriminator remote 6126
   detect-multiplier 8
   min-tx-interval 3
   min-rx-interval 3
   process-pst
   commit
  #
  bfd UPE1toSPE2_m bind mpls-te interface Tunnel612 te-lsp    //Enable static BFD to detect the primary CR-LSP of TE tunnel 612.
   discriminator local 6121
   discriminator remote 6122
   detect-multiplier 8
   min-tx-interval 3
   min-rx-interval 3
   process-pst
   commit
  #