I like what I read. I like it very much :-) -- Marko Milivojevic - CCIE #18427 (SP R&S) Senior CCIE Instructor - IPexpert
On Fri, Sep 14, 2012 at 8:29 AM, Joe Sanchez <[email protected]> wrote: > Nick, when I did this lab I thought the same thing, but after looking at the > idea of using some other method of learning the lo0 via BGP and an IGP I > thought about how would the backdoor command come into play; which it would > never help because if you loose the IGP route and the 1.1.1.1 was populated > into the BGP table, we would drop the connection anyways, therefore removing > the network statement from R1 was the only logical answer I could come up > with. In this particular case there is a single connection with two peers > from R1s perspective. > > Regards, > Joe Sanchez > > ( please excuse the brevity of this email as it was sent via a mobile device. > Please excuse misspelled words or sentence structure.) > > On Sep 14, 2012, at 8:03 AM, Nick Bonifacio <[email protected]> wrote: > >> Spoiler alert: Do not read ahead if you have not done this lab/question yet! >> >> >> Ticket 5 is as follows: >> "The BGP peering between R1 and R2/R4 is flapping and needs to be >> stabilized. Please correct the problem." >> >> >> From my first look at R2 and R4, it appears that they are learning about >> 1.1.1.1 (update source) through BGP which would of course cause problems. >> The solution is to remove network 1.1.1.1 mask 255.255.255.255 from router >> 1, but to me this seems like it would go against "keep the spirit of the >> config". >> >> What I did on R2 and R4: >> >> >> router bgp 2456 >> network 1.1.1.1 mask 255.255.255.255 backdoor >> >> This makes the preferred route to 1.1.1.1 over OSPF instead of BGP by making >> the distance of the 1.1.1.1 route 200 and keeps the config intact. >> >> Is this a better/worse solution? Do I not understand the function of the >> BGP backdoor? >> >> thanks, >> Nick >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> >> http://onlinestudylist.com/mailman/listinfo/ccie_rs > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
