Great article. I'm studying for CCNP routing....was looking for real world/case study examples. This will be very helpful. Thanks! Dain. ""Darren Ward"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > There is of course an exception to this rule :) > > BGP Backdoor makes an external route go to an admin distance of 200 so IGP > routes take precedence without having to change the eBGP distance. > > Case Study at: > http://www.cisco.com/warp/customer/459/14.html#A14.0 > > Darren Ward > (PGradCS, CCIE #8245, CCNP, CCDP, MCP) > > > On Sun, 23 Jun 2002, Dain Deutschman wrote: > > > If the intent is to route the packets to the external AS, then the eBGP > > route would be the most favorable because more likely than not...eBGP is > the > > routing protocol between autonomous systems. In other words/for > example...if > > there is more than 1 route to 10.0.0.0/16, which is a network in an > external > > AS, then the eBGP route should be the prefered route ( since it is an > > external AS ). If the network were in the same AS, then an IGP route should > > be used but...it wouldn't be in the same AS if it was learned via eBGP. Am > I > > making sense? Someone please jump in or correct me if I am wrong. > > Thanks...Dain. > > ""bergenpeak"" wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Looking at the administrative distance values for the different > > > routing mechanisms. > > > > > > Why would eBGP have a lower admin distance for a route than > > > if learned via an IGP (like OSPF or ISIS)? Why wouldn't > > > the default behavior be to prefer routes learned from the local > > > IGP rather than via eBGP? > > > > > > THanks
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