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you can also summerize the loopback over the IGP make it less specific.
the first thing a router will check in his RIB for use is the more specific!
On Jan 20, 2008 9:17 AM, Cielieska Nathan wrote:
> Suzan, > > No.. all of these things are happening by design. First off.. its not > a problem. Unless you have a question in a workbook that wasn’t stated. > > You want your IGP (EIGRP, RIP, OSPF) to be chosen over IBGP. > Remember.. IBGP is 200 AD, all of the others are lower, then EBGP is 20. > > Now if you need IBGP to be chosen over your IGP then you need to > change the admin distance. The backdoor command will make your IGP > more desirable.. this is usually vs. EBGP routes. > > The backdoor command allows your IGP to be your primary route.. but > in case of IGP failure your BGP is a “backdoor” for the network. > > Either way, if an IGP is being chosen over BGP you will see the rib- > failure in the RIB. This is by design because the IGP route is > currently in use. > > Is there a workbook task or question that this is in relation to? > > Regards, > Nate > > > > On Jan 20, 2008, at 2:08 AM, Suzan S. wrote: > > > Dear Cielieska, > > > > But is it recomended to change the administrative distance? > > Some guys suggested to add the network backdoor command to solve > > the problem which is better than changing the adminstrative distance. > > > > Thank you > > Suzan > > > > Cielieska Nathan wrote: > > Suzan, > > > > In my experience, this is by design. The RIB failure is blocking BGP > > from putting this route into the routing table because the IGP with > > the lower administrative distance has trumped it. If you set the BGP > > routes lower than the admin distance of the IGP, the BGP router will > > kick those routes out of RIB-failure state. > > > > Regards, > > Nate > > On Jan 18, 2008, at 4:20 PM, Suzan S. wrote: > > > > > Dears, > > > > > > When advertiseing the loopbacks in the bgp , they appear as RIB- > > > failure routes in the BGP table as they are advertised through the > > > IGP which has better adminstrative distance. Any one knows how to > > > solve the problem of these RIB-failure Routes? Do we have to change > > > the administrative distance for the IGP or BGP ? In some documents > > > I read that we have to use the command bgp suppress-active under > > > the router bgp config but it does not work. > > > > > > Thank you All > > > > > > Suzan > > > > > > > > > ——————————— > > > Looking for last minute shopping deals? Find them fast with Yahoo! > > > Search. > > > > > > > > ______________________________________________________________________ > > > _ > > > Subscription information may be found at: > > > http://www.groupstudy.com/list/CCIELab.html > > > > > > > > Looking for last minute shopping deals? Find them fast with Yahoo! > > Search. > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html >

– Shiran Guez MCSE CCNP NCE1 http://cciep3.blogspot.com http://www.linkedin.com/in/cciep3