Doyle on OSPF DR failure-election [7:21659]

2001-10-02 Thread Elmer Deloso
Hello again. On page 419 of Doyle's book, it explains that "if the DR fails, a new DR must be elected,new adjacencies must be established, and all Routers on the network must synchronizewhile all this is happening, The network is UNAVAILABLE for transit packets." My question is: What about EX

Re: Doyle on OSPF DR failure-election [7:21659]

2001-10-02 Thread Peter Van Oene
When the DR fails, the BDR takes over as soon as it ages out the its dead timer for the DR. The BDR already has adjacencies with all other routers on the segment and has been keeping tabs on the DR such that it can take over rather gracefully. A BDR election is then subsequently held to backfill

Re: [Doyle on OSPF DR failure-election [7:21659]

2001-10-02 Thread Curtis Call
Well first off, there are no existing sessions between DROthers. Remember that DROther routers only become adjacent to the DR and the BDR, they remain in 2way state with each other. There will be an existing session with the DROthers and the BDR which will result in a fast promotion of the BDR t

RE: Doyle on OSPF DR failure-election [7:21659]

2001-10-02 Thread Elmer Deloso
OSPF DR failure-election [7:21659] When the DR fails, the BDR takes over as soon as it ages out the its dead timer for the DR. The BDR already has adjacencies with all other routers on the segment and has been keeping tabs on the DR such that it can take over rather gracefully. A BDR election is

RE: Doyle on OSPF DR failure-election [7:21659]

2001-10-02 Thread Howard C. Berkowitz
ECTED]] >Sent: Tuesday, October 02, 2001 10:09 AM >To: [EMAIL PROTECTED] >Subject: Re: Doyle on OSPF DR failure-election [7:21659] > >When the DR fails, the BDR takes over as soon as it ages out the its dead >timer for the DR. The BDR already has adjacencies with all other routers