Routing

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  • 1.  Redundancy and Protection (BGP/OSPF/BFD/STP.MSTP)

    Posted 07-08-2011 04:12
      |   view attached

    Hi guyz,

     

    I need some clarification of my propose design.

     

    2 routers and 2 L3 Switch

     

    the network run bgp and ospf . each router run bgp and connected to own upstream. switches will connected to different vlan and run ospf. for redundancy and protection i am thinking of using bfd and stp/mstp. 

     

    1. what is the best solution bfd or stp. ( i understd stp is a l2 protection and bfd on l3).

    2. any idea and proposal solution would be really appreciated.

     

    your assistance and help is much appreciated.

     

    Thank you.

     

     

     



  • 2.  RE: Redundancy and Protection (BGP/OSPF/BFD/STP.MSTP)
    Best Answer

    Posted 07-08-2011 04:41

    BFD is only recommended to be used on Layer 3 links. Also depending on the platform in use will depict what timers you use for BFD.

     

    You provider most likely will NOT support BFD, so it can only be used internally. In your scenario, it looks like you are running BGP over OSPF for your iBGP?? If so, then enable BFD on OSPF only.

     

    MSTP should be used for your layer 2 vlan segments as you said.

     

    Hope this helps a bit, but its mostly informational as you already answered your own question. BFD is L3, MSTP is L2.. 🙂



  • 3.  RE: Redundancy and Protection (BGP/OSPF/BFD/STP.MSTP)

    Posted 07-12-2011 01:25

    Thank you buckweet