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Forum Replies

  1. Keep in mind that the physical interface for frame-relay is always non-broadcast.

  2. Hi Gabriel,

    OSPF network broadcast will work but it’s normally used for frame-relay point-to-multipoint topologies like in this example. For frame-relay point-to-point it’s best to use the point-to-point or point-to-multipoint network type.

    On the other hand, you can make all the OSPF network types work on any given topology…

  3. Rene – in my class I have to discuss OSPF over Frame Relay. Im having a hard time grasping this. Specifically - I have to discuss a single subnet for every PVC – or – a single subnet for all routers using point to point subinterfaces associated with each PVC. So my understanding is….

    “Single subnet for all routers” – uses Point to Multi-Point (point to point subinterfaces) –. It’s the Point to Mulit-Point Broadcast and Point to Multi-Point NON Broadcast that is throwing me. I understand Frame Relay is a NonBroadcast MultiAccess (NBMA)…. So what is Point to

    ... Continue reading in our forum

  4. Hi Jason,

    When configuring frame-relay, we have two options:

    The links above will show you a configuration example for each. The main difference is that point-to-multipoint uses a single subnet for all PVCs while point-to-point uses a different subnet for each PVC.

    Now when it comes to OSPF, this can be confusing yes…here are all network types:

    One of the main differences between broadcast/non-broadcast and the point-to-mult

    ... Continue reading in our forum

  5. Hello Michael.

    I refer to yout @ReneMolenaar’s previous post where he states that [quote=“ReneMolenaar, post:24, topic:921”]
    They all work so it doesn’t matter too much which [network topology] you pick.

    The point-to-point or point-to-multipoint network types are probably the easiest to use. You don’t require a DR/BDR election so you don’t have to worry about setting the correct priority.

    So it really doesn’t matter which network type you choose, as long as they are configured correctly.

    However, keep the following issues in mind:

    * If each area is com

    ... Continue reading in our forum

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