You can neighbor many times with the same router. Otherwise redundant links would not be possible. You can see this for instance by setting up two ethernet connections and running ospf on both
------Original Message------ From: Bojan Zivancevic Sender: [email protected] To: CCIE OSL Subject: Re: [OSL | CCIE_RS] Today's V-Lecture on IPv6 Addressing/Routing Sent: May 18, 2010 12:59 PM Regarding OSPF flapping... I think it is related to router-id issue. Both routers see two neighbors with the same router-id coming in. I saw that a while ago in some ipv4 lab. The same happens if two routers that want to become neighbors have the same id - I think ospf would behave in the same way. Best Regards, Bojan Zivancevic Network Engineer ---- Comutel d.o.o. Omladinskih brigada 65v 11070 Belgrade SERBIA _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Sent from my Verizon Wireless BlackBerry Regards, Joe Astorino - CCIE #24347 Sr. Technical Instructor - IPexpert Mailto: [email protected] Telephone: +1.810.326.1444 Live Assistance, Please visit: www.ipexpert.com/chat eFax: +1.810.454.0130 IPexpert is a premier provider of Self-Study Workbooks, Video on Demand, Audio Tools, Online Hardware Rental and Classroom Training for the Cisco CCIE (R&S, Voice, Security & Service Provider) certification(s) with training locations throughout the United States, Europe, South Asia and Australia. Be sure to visit our online communities at www.ipexpert.com/communities and our public website at www.ipexpert.com _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
