From: shiran guez (shiranp3@gmail.com)
Date: Sat Jan 05 2008 - 16:14:44 ARST
by default no community is advertised until you specify
*neighbor <IP-ADDRESS> send-community*
also by default the new format is disabled until you specify under global
config:
*ip bgp-community new-format
*now once you specified this 2 you can create something like that:
!R1
int lo10
ip add 10.0.0.0 255.0.0.0
int lo11
ip add 10.1.0.0 255.0.0.0
!
ip prefix-list NET.10 permit 10.0.0.0/8
ip prefix-list NET.10 permit 10.1.0.0/8
!
route-map SET-COMMUNITY per 10
match ip address prefix NET.10
set community 1:10
!
router bgp <AS>
net 10.0.0.0 mas 255.0.0.0
net 10.1.0.0 mas 255.0.0.0
*neighbor <IP-ADDRESS> remot <AS>*
*neighbor <IP-ADDRESS> route-map *SET-COMMUNITY out
end
!
clear ip bgp * ou
!
sh ip bg
!
!R2
!
*ip bgp-community new-format
!
*router bgp <AS>
*neighbor <IP-ADDRESS> remot <AS>*
end
this example hopefully will get you started on understanding the new format
community
On Jan 5, 2008 8:00 PM, <ladeegeek@gmail.com> wrote:
> I just can't get my arms around how to use and implement a community new
> format number. I've looked at Halabi and the BGP section of the TCP/IP
> book, but can't find a reasonable amount of information to see how the new
> format can be implemented. Sounds kinda basic, I know - but when I try it
> in the lab the route I assign a new-format number to is not advertised to my
> neighbor. Is there an assumption that when using the new-format numbering
> the community is also no-export?
>
> Thanks!
>
> _______________________________________________________________________
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-- Shiran Guez MCSE CCNP NCE1 http://cciep3.blogspot.com http://www.linkedin.com/in/cciep3
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