7 Replies Latest reply: May 6, 2012 8:45 PM by YapChinHoong RSS

    When OSPF uses Multicast or Unicast after two-way ???

    Aman

      Hi,

       

      I have an query, that when OSPF uses multicast or unicast address after two-way state??

      Bcz I just setup an topology, attached below...

      topology.jpg

      & after saw the O/P of wireshark my head is like going to burst...

       

      As u can see in O/P of Wireshark (both interfaces of R1). OSPF uses unicast messages for DBD exchange b/w R1 & R4 (via. Ethernat link). & uses multicast messages for same b/w R1 & R5 (via Serial link).

       

      Need suggestion......????

       

      Regards