You are right Brandon, but i didn't mean that. I know OSPF doesnt need to be reachable to router-id to converge. I am thinking from topology table perspective. What if the router who is VRRP master fails, same IP assigned to the secondary router, but this time different router-id, and whole topology table. I just wonder how the convergence will take place.
Regards, *Ali Sumsam CCIE* *Network Engineer - Level 3* eintellego Pty Ltd [email protected] ; www.eintellego.net Phone: 1300 753 383 ; Fax: (+612) 8572 9954 Cell +61 (0)410 603 531 facebook.com/eintellego PO Box 7726, Baulkham Hills, NSW 1755 Australia The Experts Who The Experts Call Juniper - Cisco – Brocade - IBM On Thu, Dec 6, 2012 at 4:26 PM, Brandon Ross <[email protected]> wrote: > On Thu, 6 Dec 2012, Ali Sumsam wrote: > > Off the top of my head, we cant have OSPF neighbor via VRRP interface, the >> reason would be the router-id. What router-id should it pick. >> > > It is best practice to have a loopback interface and use it for OSPF > router ID, so you could easily have a unique address to use. > > Also, OSPF router ID does not need to be a an address in use on the router > at all, so you could even configure any old random address, as long as it's > unique in the network, although that wouldn't be advisable. > > And besides all of that, interfaces configured with VRRP always also have > unique addresses in that subnet, so the router still has a unique address, > even if you don't follow best practices and haven't manually configured a > router ID. > > -- > Brandon Ross Yahoo & AIM: > BrandonNRoss > +1-404-635-6667 ICQ: > 2269442 > Schedule a meeting: https://doodle.com/bross Skype: > brandonross > _______________________________________________ juniper-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/juniper-nsp
