From: Nitin Venugopal (nitinsworld@gmail.com)
Date: Sun Mar 15 2009 - 01:44:02 ART
Hi,
1. Why you have not set any MED on R2 ,
2. Why there is no not community set on R4 ?
By default R4 will be recieving MED 0 from R2 and hence INCOMING traffic to
AS 100 will prefer via R2. (Any value hIgher than 50 should have been set
on R2 )
Regds
Nitin
On Sun, Mar 15, 2009 at 8:22 AM, Deepak Ahuja <deeps.ccie@gmail.com> wrote:
> Hi Bryan
>
> Thanks a lot for a quick reply
>
> Here are the configs
>
> R1
>
> router bgp 100
> bgp router-id 9.9.1.1
> no bgp default ipv4-unicast
> bgp log-neighbor-changes
> neighbor 9.9.2.2 remote-as 100
> neighbor 9.9.2.2 update-source Loopback0
> neighbor 9.9.13.3 remote-as 200
> !
> address-family ipv4
> neighbor 9.9.2.2activate
> neighbor 9.9.2.2 send-community
> neighbor 9.9.2.2 next-hop-self
> neighbor 9.9.13.3 activate
> neighbor 9.9.13.3 send-community
> neighbor 9.9.13.3 route-map MED out
> no auto-summary
> no synchronization
> exit-address-family
>
> ip community-list 1 permit 200:200
>
> route-map MED per 10
> match community 1
> set metric 50
> route-map MED per 20
>
> R2
>
> router bgp 100
> bgp router-id 9.9.2.2
> no bgp default ipv4-unicast
> bgp log-neighbor-changes
> neighbor 9.9.1.1 remote-as 100
> neighbor 9.9.1.1 update-source Loopback0
> neighbor 9.9.24.4 remote-as 200
> !
> address-family ipv4
> neighbor 9.9.1.1activate
> neighbor 9.9.1.1 send-community
> neighbor 9.9.1.1 next-hop-self
> neighbor 9.9.24.4 activate
> neighbor 9.9.24.4 send-community
> no auto-summary
> no synchronization
> exit-address-family
>
>
>
>
> R3
>
> router bgp 200
> bgp router-id 9.9.3.3
> no bgp default ipv4-unicast
> bgp log-neighbor-changes
> neighbor 9.9.4.4 remote-as 200
> neighbor 9.9.4.4 update-source Loopback0
> neighbor 9.9.13.1 remote-as 100
> !
> address-family ipv4
> neighbor 9.9.4.4 activate
> neighbor 9.9.4.4 send-community
> neighbor 9.9.4.4 next-hop-self
> neighbor 9.9.13.1 activate
> neighbor 9.9.13.1 send-community
> network 200.200.200.1 mask 255.255.255.255 route-map COMM
> network 200.200.201.2 mask 255.255.255.255 route-map COMM
> no auto-summary
> no synchronization
> exit-address-family
>
> route-map COMM
> set community 200:200
>
>
> R4
>
> router bgp 200
> bgp router-id 9.9.4.4
> no bgp default ipv4-unicast
> bgp log-neighbor-changes
> neighbor 9.9.3.3 remote-as 200
> neighbor 9.9.3.3 update-source Loopback0
> neighbor 9.9.24.2 remote-as 100
> !
> address-family ipv4
> neighbor 9.9.3.3 activate
> neighbor 9.9.3.3 send-community
> neighbor 9.9.3.3 next-hop-self
> neighbor 9.9.24.2 activate
> neighbor 9.9.24.2 send-community
> no auto-summary
> no synchronization
> exit-address-family
>
> Show ip bgp on any router does not show the change in metric
>
>
> Regards
> Deepak
>
>
>
> On Sat, Mar 14, 2009 at 11:30 AM, Bryan Bartik <bbartik@ipexpert.com>
> wrote:
>
> > Outbound route-map with AS-Path prepend or MED will work. Do you see the
> > prepend values or MED values on R1 and R2? Post your configs.
> >
> >
> > On Sat, Mar 14, 2009 at 11:31 AM, Deepak Ahuja <deeps.ccie@gmail.com
> >wrote:
> >
> >> Hi Ryan
> >>
> >> I have to use a OUTBOUND route-map
> >>
> >> On Sat, Mar 14, 2009 at 10:18 AM, Ryan DeBerry <rdeberry@gmail.com>
> >> wrote:
> >>
> >> > To manipulate outbound traffic use local pref applied inbound.
> >> >
> >> > On Sat, Mar 14, 2009 at 12:03 PM, Deepak Ahuja <deeps.ccie@gmail.com
> >> >wrote:
> >> >
> >> >> Hi Experts
> >> >>
> >> >> I know this is simple for you folks but I am really stucked
> >> >>
> >> >> Situation
> >> >>
> >> >> R 1----------BGP AS 100-----------------R2
> >> >> | |
> >> >> | |
> >> >> | |
> >> >> R3--------------------BGP AS 200---------R4
> >> >>
> >> >>
> >> >> I have following routes advertised to R1 and R2 from AS 200 with
> >> >> Community
> >> >> 200:200
> >> >>
> >> >> 1. 200.200.200.1/32
> >> >> 2. 200.200.200.2/32
> >> >>
> >> >> Condition
> >> >>
> >> >> I need to make R1 as the primary gateway for these routes using an
> >> >> outbound
> >> >> route-map and community
> >> >>
> >> >>
> >> >>
> >> >> I tried with the AS PATH And MED it doesnt work.
> >> >>
> >> >>
> >> >> Please help, any insight on that is appreciated
> >> >>
> >> >> Regards
> >> >> Deepak Ahuja
> >> >>
> >> >>
> >> >> Blogs and organic groups at http://www.ccie.net
> >> >>
> >> >>
> _______________________________________________________________________
> >> >> Subscription information may be found at:
> >> >> http://www.groupstudy.com/list/CCIELab.html
> >>
> >>
> >> Blogs and organic groups at http://www.ccie.net
> >>
> >> _______________________________________________________________________
> >> Subscription information may be found at:
> >> http://www.groupstudy.com/list/CCIELab.html
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
> > --
> > Bryan Bartik
> > CCIE #23707, CCNP
> > Sr. Support Engineer - IPexpert, Inc.
> > URL: http://www.IPexpert.com <http://www.ipexpert.com/>
>
>
> Blogs and organic groups at http://www.ccie.net
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
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