We're Sorry, Full Content Access is for Members Only...

If you like to keep on reading, Become a Member Now! Here is Why:

  • Learn any CCNA, CCNP and CCIE R&S Topic. Explained As Simple As Possible.
  • Try for Just $1. The Best Dollar You've Ever Spent on Your Cisco Career!
  • Full Access to our 639 Lessons. More Lessons Added Every Week!
  • Content created by Rene Molenaar (CCIE #41726)

 

351 New Members signed up the last 30 days!

satisfaction-guaranteed

100% Satisfaction Guaranteed!
You may cancel your monthly membership at any time.
No Questions Asked!

Tags: ,


Forum Replies

  1. Hey,

    Since we are using a frame relay network and I see that you have not included a broadcast command with the the frame relay command, how do the OSPF neighbors identify each other? As mentioned before without the broadcast command no multicast traffic will pass. Is this behavior because of point to point topology? How will the Hub/Spoke know that it has an OSPF speaking router on the other end, if no multicast traffic is flowing?

  2. Hello Apoorva

    RFC 2328 indicates what kind of hello and LSA communication OSPF uses for each type of network. These are summarized below:

    • Point-to-Point (P2P) - Multicast
    • Point-to-Multipoint (P2MP) - Unicast
    • Broadcast - Multicast
    • Non-broadcast multiple access (NBMA) - Unicast
    • Virtual Link - Unicast

    This means that the Point to Multipoint communication between OSPF routers is unicast.

    Now having said that, when you configure the frame relay maps in your configuration, you will require the broadcast keyword. The frame relay maps are not actually shown in the

    ... Continue reading in our forum

Ask a question or join the discussion by visiting our Community Forum