On Tue, Jun 29, 2010 at 06:59:28PM -0700, Mitchell Erblich wrote: > > On Jun 29, 2010, at 6:22 PM, Greg Mirsky wrote: > > > Dear Glen, > > the OSPF uses UDP which is unreliable IP transport, not like TCP which is > > used by BGP. You've noticed that some LLS (DD and LSA) have reliability > > support on protocol level while others (Hello) don't. If Hello goes through > > (at least one of three to keep adjacency up) then all other exchanges will > > work, even with retransmissions. > > > > Regards, > > Greg > > > > Greg, > > Sorry UDP is NOT a IP transport. > These last two words (IP transport) don't make sense. > UDP is a protocol, that in many current environments > is layered below the IP protocol. > > Yes, OSPF uses the UDP protocol.
No it does not. OSPF uses its own proto 89 on top of IP. OSPF has its own reliability layer to make sure that the LSDB stay in sync. -- :wq Claudio _______________________________________________ OSPF mailing list [email protected] https://www.ietf.org/mailman/listinfo/ospf
