Gday Bryan, The penny has dropped. What I failed to do was break the R8<->R9 connection and see what happens! Shortest AS-Path was fooling me that things were okay. Thanks for the clarification.
On a side note - this was probably one of the best vendor labs I've done so far. Looking forward to getting stuck into Labs 2 through 5 in Vol 2. Cheers, Con. On Sat, Jul 25, 2009 at 9:53 PM, Bryan Bartik<[email protected]> wrote: > Hello Con, > > 1&2. Prepeding appends the AS before your own AS. In this case, some routes > come from AS 125, so if you prepend 1 to that the AS path would 678 1 125 > instead of 678 125 1. > > 3. Hmmm....looks like an oversight! Should be adding community 1:1. > > Let me know if you have any other questions. > > > On Sat, Jul 25, 2009 at 10:56 AM, Con Spathas <[email protected]> > wrote: >> >> Gday All, >> >> So the requirement is that we need to configure eBGP between R6 (vrf >> VPNA) and BB_CE1 and ultimately get some comms between VPNA and VPNB. >> No dramas there. >> The bit that's confusing me is the config the Proctor Guide performs >> on R1 to set the origin to EGP AS1 as it redistributes VPNB OSPF >> routes into BGP. >> >> A couple of questions I'm hoping someone can shed some light on please: >> >> 1. Why is it needed? Performing prepend (AS 1) at R6 for all >> advertisements outbound to BB_CE1 seems to do the trick. >> 2. If it is needed - then can someone please explain why and also why >> the config is only needed on R1 and not R8 as well? >> 3. The requirement was that BB_CE1 also expects the routes to carry >> community 1:1 - whilst I set this on my route-map on R6 towards BB_CE1 >> - there's nothing in the Proctor Guide. I take it this is just an >> oversight? >> >> Cheers, >> Con. >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com > > > > -- > Bryan Bartik > CCIE #23707 (R&S), CCNP > Sr. Support Engineer - IPexpert, Inc. > URL: http://www.IPexpert.com > _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
