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Mpls bfd intervene

Latest reply: Sep 26, 2018 16:18:12 2629 2 0 0 0
Hi All,

here i want to know the purpose or interpretation of the bfd disbaling for mpls
&pw enable globally  i.e..

what is the effect of making mpls passive & active in bfd for the binding with a peer
& to that of binding with pseudowire

-----Bfd Global cmd's

 bfd for pw enable

------------BFD binding to a peer & pseudowire
bfd tosw2 bind peer-ip interface Vlanif10
 discriminator local 6
 discriminator remote 5
 min-tx-interval 100                      
 min-rx-interval 100

bfd enterprise bind pw interface GigabitEthernet5/0/12.100
 discriminator local 1
 discriminator remote 3
interface GigabitEthernet5/0/12.100
 control-vid 12 dot1q-termination
 dot1q termination vid 3000 to 3010

-----------lacp config
 lacp e-trunk system-id 00e0-fc00-0000
 lacp e-trunk priority 1

  • x
  • convention:

Created Apr 19, 2013 07:34:04

this command was developped from scalability reasons.

As you may know LSPs are undirectional, and usually in MPLS cloud will be a lot of LSP. On ingress you will configure BFD session for a specific LSP. If you have mpls-passive configured on egress node, after this egress receive the ping packet, BFD session will be automatically created on the lsp that deliver the ping.

So this was created to make the configuration more simple, scalable for a lot of LSPs.


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  • x
  • convention:

Created Sep 26, 2018 16:18:12

thanks for information
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