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Forum Replies

  1. Hi,

    what are the disadvantages of using bfd.
    also it would be helpful if you post an article on troubleshooting bfd.

  2. BFD does not work in GNS3. I was using 7200 with IOS 15.x. Checking on forums the consensus is a GNS3 bug. Does anyone have a workaround for this?

    Hostname R1
    !
    interface FastEthernet0/0
     ip address 10.0.0.9 255.255.255.252
     ip ospf 10 area 0
     duplex full
     bfd interval 500 min_rx 500 multiplier 3
    !
    router ospf 10
     router-id 10.0.0.1
     bfd all-interfaces
    

    -

    Hostname R2
    !
    interface FastEthernet0/0
     ip address 10.0.0.10 255.255.255.252
     ip ospf 10 area 0
     duplex full
     bfd interval 500 min_rx 500 multiplier 3
    !
    router ospf 10
     router-id 10.0.0.1
     bfd all-interfaces
    
    ... Continue reading in our forum

  3. Hi @tadeosho70,

    With echo mode, this is no problem. The packets you send are echoed back to you. For example, take a look at this output:

    R1(config)#interface FastEthernet 0/0
    R1(config-if)#bfd interval 300 min_rx 300 multiplier 3 
    
    R2(config)#interface FastEthernet 0/0
    R2(config-if)#bfd interval 300 min_rx 600 multiplier 3 
    

    The min_rx is set to 300 on R1 and 600 on R2. Here’s the output of R1 showing the 600 ms of R2:

    R1#show bfd neighbors details 
    
    NeighAddr                         LD/RD    RH/RS     State     Int
    192.168.12.2                       1/1     U
    ... Continue reading in our forum

  4. Thanks Lagapides

    It is very helpful

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