From: Daniel Valle (danielfrvalle@gmail.com)
Date: Wed Mar 19 2008 - 21:50:14 ART
I did a small lab for it and it worked jus fine with and without the
send-community on both ends... As long you receive the community you don't
need it configured in the receiving end to treat the communities from the
remote-end. I posted the same example you send us... It worked just fine for
me.
!
router bgp 254
no synchronization
bgp router-id 1.1.1.254
bgp log-neighbor-changes
bgp dampening
neighbor 1.1.1.6 remote-as 3
neighbor 1.1.1.6 route-map FROM-R6 in
no auto-summary
!
ip bgp-community new-format
ip community-list 101 permit .*:5..
!
!
route-map FROM-R6 permit 10
match community 101
set local-preference 555
!
route-map FROM-R6 permit 20
!
end
!
BB#sh ip bgp 200.200.200.200
BGP routing table entry for 200.200.200.200/32, version 6
Paths: (1 available, best #1, table Default-IP-Routing-Table)
Not advertised to any peer
3
1.1.1.6 from 1.1.1.6 (1.1.6.6)
Origin IGP, metric 0, localpref 555, valid, external, best
Community: 0:566
On 3/18/08, Daniel Valle <danielfrvalle@gmail.com> wrote:
>
> I didn't have time to check carefully, But I would do two tests. 1st.
> remove "route-map COMMIN permit 20"... after that your routes should still
> be there... if it's not, something is wrong with your configs. 2nd (not so
> sure about this one) set the send-community also in the neighbor command.. I
> know it's strange, but I never saw before community filtering without
> the sendd-community on both ends.
>
> I'll lab this up and I'll let you know,
>
>
> Daniel
>
>
>
> On 3/15/08, E Toohs <mr_fantasy_1978@yahoo.com> wrote:
> >
> > WHY ISNT THE LOCAL PREFERENCE BEING SET ON THESE ROUTES?
> >
> > 5.6.6.6 has community 0:566 coming in
> > 5.7.7.7 has community 0:577 coming in
> > community list 101 matches on .*:5..
> > show ip bgp community-list 101 confirms this
> > however route-map COMMIN does not seem to apply the LOCAL-PREF
> >
> > router bgp 64600
> > bgp log-neighbor-changes
> > bgp dampening
> > network 172.12.35.0
> > neighbor 172.12.36.3 remote-as 65300
> > neighbor 172.12.36.3 route-map COMMIN in
> > neighbor 172.12.36.3 maximum-prefix 8 50 warning-only
> > !
> > ip bgp-community new-format
> > ip community-list 101 permit .*:5..
> > !
> > route-map COMMIN permit 10
> > match community 101
> > set local-preference 500
> > !
> > route-map COMMIN permit 20
> > !
> >
> > R6#show ip bgp community-list 101
> >
> > BGP table version is 28, local router ID is 172.12.36.6
> > Status codes: s suppressed, d damped, h history, * valid, > best, i -
> > internal
> > Origin codes: i - IGP, e - EGP, ? - incomplete
> >
> > Network Next Hop Metric LocPrf Weight Path
> > *> 5.6.6.6/32 172.12.36.3 0 65300 65500
> > i
> > *> 5.7.7.7/32 172.12.36.3 0 65300 65500
> > i
> >
> > R6#show ip bgp 5.6.6.6
> >
> > BGP routing table entry for 5.6.6.6/32, version 6
> > Paths: (1 available, best #1, table Default-IP-Routing-Table)
> > Not advertised to any peer
> > 65300 65500
> > 172.12.36.3 from 172.12.36.3 (3.3.3.3)
> > Origin IGP, localpref 100, valid, external, best
> > Community: 0:566
> >
> > R6#show ip bgp 5.7.7.7
> >
> > BGP routing table entry for 5.7.7.7/32, version 7
> > Paths: (1 available, best #1, table Default-IP-Routing-Table)
> > Not advertised to any peer
> > 65300 65500
> > 172.12.36.3 from 172.12.36.3 (3.3.3.3)
> > Origin IGP, localpref 100, valid, external, best
> > Community: 0:577
> >
> >
> > The communities in routes 5.6.6.6 and 5.7.7.7 match list 101, but the
> > Local Pref is not set? Anybody see why?
> >
> > Thanks,
> > E
> >
> >
> > ---------------------------------
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This archive was generated by hypermail 2.1.4 : Tue Apr 01 2008 - 07:53:54 ART