The more ways you have to do something the better! Thanks for the quick (as always) response Joe.
-Rob On May 13, 2010, at 4:18 PM, Joe Astorino wrote: > Any alternative way that doesn't break the rules is a good one to > know! There is really no reason I can give you as to why we never > used that particular command other than that the lab author did not > find it all that interesting or overly important. The other thing you > could do is just not advertise the loopback into BGP at the same time > as your IGP...just don't use the network command at all! > > I don't see why the BGP backdoor option could not be used to > accomplish what you are saying. nice! > > On Thu, May 13, 2010 at 3:52 PM, Robert Simmons <[email protected]> wrote: >> Ipexperts, >> >> In various labs, I've noticed that you guys present a scenario where you >> have two eBGP nodes peering via a loopback that is being advertised via an >> IGP. Obviously, this is going to cause the neighbor to "flap" since the eBGP >> AD 20 metric will supersede any of the default IGP metrics. The two >> techniques I've seen you guys use throughout your workbooks are to either >> filter the loopback via route-map on the neighbor or playing around with the >> distances to make the IGP loopback preferable. The technique I always use >> and to me seems much simpler is just using the network statement with the >> keyword "backdoor" for the peer's loopback address. I haven't seen you use >> this technique and I'm wondering if there is a reason why? Obviously, if you >> have certain restrictions in a particular lab I wouldn't use it but, if >> there aren't any shouldn't this be a valid method as well? >> >> I'm just wondering if there is some downside that I'm not seeing. >> >> Thanks >> >> -Rob >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> > > > > -- > 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
