Thanks Jay for the clarification. I guess I was asking in general, are we allowed to re-use private ASN's in different confederation? I don't see why we can't, but wasn't sure if CCIE lab rules allow it or not.
From: Jay Taylor [mailto:[email protected]] Sent: Friday, December 03, 2010 9:35 AM To: Huang, Kevin Cc: [email protected] Subject: Re: [OSL | CCIE_RS] VOL1 LAB13.7 & 13.12 BGP ASN I used route reflectors: 13.10 - Cat1 ------------ router bgp 10101 neighbor 150.101.12.2 remote-as 10101 neighbor 150.101.12.2 route-reflector-client neighbor 150.101.13.3 remote-as 10101 neighbor 150.101.13.3 route-reflector-client neighbor 150.101.14.4 remote-as 10101 neighbor 150.101.14.4 route-reflector-client aggregate-address 200.11.0.0 255.255.248.0 summary-only route-map Task11 permit 10 match ip address 12 router bgp 10101 neighbor 150.101.14.4 unsuppress-map Task11 distance bgp 20 200 255 13.12 - Cat2 ------------- router bgp 10101 neighbor 150.101.12.1 remote-as 10101 13.12 - Cat3 ------------- router bgp 10101 neighbor 150.101.13.1 remote-as 10101 13.12 - Cat4 ------------- router bgp 10101 neighbor 150.101.14.1 remote-as 10101 On Fri, Dec 3, 2010 at 9:22 AM, Huang, Kevin <[email protected]<mailto:[email protected]>> wrote: Thanks for the quick response. So your Cat 2,3 & 4 just peer to cat 1 as iBGP peers then? (only one neighbor command allowed on them) If that were the case, how did you make them learn each other's local loopback routes w/o using route reflector or confederation? Kevin From: Jay Taylor [mailto:[email protected]<mailto:[email protected]>] Sent: Friday, December 03, 2010 8:54 AM To: Huang, Kevin Cc: [email protected]<mailto:[email protected]> Subject: Re: [OSL | CCIE_RS] VOL1 LAB13.7 & 13.12 BGP ASN My configs from when I did that lab showed I used AS10101 on the Cats without a Confederation. On Fri, Dec 3, 2010 at 7:52 AM, Huang, Kevin <[email protected]<mailto:[email protected]>> wrote: Solution guide says three private ASN's were already used by R2, R4, R5 & R6 in earlier tasks, so the remaining two private ASN's aren't enough to configure confederation for the Catalyst switches in ASN 10101. (only first five private ASN's are allowed) Is there any rule against re-using the same private ASN's? Why can't I use 64512-64514 for the routers in AS 109, and use 64512-64515 for the switches in AS 10101? Kevin _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com<http://www.ipexpert.com>
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