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 to DR in the event that the current DR fails.
When the DR fails it will be removed from the neighbor list of all the routers attached to that network, they will also remove their link to the Network LSA that existed for this network. So temporarily, until the new DR is promoted and the link is advertised in their Router LSAs, the network would be unavailable. "Elmer Deloso" wrote: > 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 synchronize....while all this is happening, > The network is UNAVAILABLE for transit packets." > My question is: > What about EXISTING sessions between DROTHERs, will these get > Interrupted when the DR fails? Or is this in reference to packets using the > Area where the failed DR is as a TRANSIT area? > Wouldn't individual routers still maintain a CACHED copy of which way > To route remaining packets (e.g. to complete an FTP download?) > > Elmer Deloso > ---------- [EMAIL PROTECTED] OSPF Practice Exam www.boson.com\tests\Advanced.htm Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=21668&t=21659 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
