Re: CE to CE routing issue

it looks you are running iBGP between R6 and R2 as per the behave of
the routing protocols the routing table will be prefer for 1st ospf
then IS-IS then iBGP.

make sure you redistribute ospf into IS-IS on R2.

as you mention below. R2 and R3 running OSPF.

1 of the cause maybe overlapping in the redistribution.

cause between R6 and BB1 OSPF
R6 to R2 ISIS and BGP
R2 to R3 OSPF vrf XYZ

I will suggest do it 1 by 1.

1st shutdown the bgp

Do the fully redistribution between OSPF and IS-IS on R3->R2->R6
Then
From BB1->R6->R2

Make sure you get the full routing table.

I hope it will work out to find out where is the problem.
.

If still not, please post the complete configuration for all the routers.

Regards,
SM

On Tue, May 12, 2009 at 4:15 PM, Splinter <splinter330_at_gmail.com> wrote:
> Bryan,
>
> Yes i have BGP enabled, ISIS is my IGP. OSPF is between the PE and CE. I am
> not running vrf between R6 and BB1
>
>
> here it is.
>
> R2:
> router bgp 267
> bgp router-id 10.10.2.2
> no bgp default ipv4-unicast
> bgp log-neighbor-changes
> neighbor 10.10.6.6 remote-as 267
> neighbor 10.10.6.6 update-source Loopback0
> neighbor 10.10.7.7 remote-as 267
> neighbor 10.10.7.7 update-source Loopback0
> !
> address-family ipv4
> neighbor 10.10.6.6 activate
> neighbor 10.10.6.6 send-community
> neighbor 10.10.6.6 next-hop-self
> no auto-summary
> no synchronization
> network 10.10.2.2 mask 255.255.255.255 route-map COMM
> exit-address-family
> !
> address-family vpnv4
> neighbor 10.10.6.6 activate
> neighbor 10.10.6.6 send-community extended
> neighbor 10.10.6.6 route-reflector-client
> neighbor 10.10.7.7 activate
> neighbor 10.10.7.7 send-community extended
> neighbor 10.10.7.7 route-reflector-client
> exit-address-family
> !
> address-family ipv4 vrf XYZ
> redistribute ospf 100 vrf XYZ match internal external 1 external 2
> no synchronization
> exit-address-family
>
> R6:
> router bgp 267
> bgp router-id 10.10.6.6
> no bgp default ipv4-unicast
> bgp log-neighbor-changes
> neighbor 10.10.2.2 remote-as 267
> neighbor 10.10.2.2 update-source Loopback0
> neighbor 10.10.7.7 remote-as 267
> neighbor 10.10.7.7 update-source Loopback0
> !
> address-family ipv4
> neighbor 10.10.2.2 activate
> neighbor 10.10.2.2 send-community
> neighbor 10.10.2.2 route-reflector-client
> neighbor 10.10.2.2 next-hop-self
> neighbor 10.10.7.7 activate
> neighbor 10.10.7.7 send-community
> neighbor 10.10.7.7 route-reflector-client
> neighbor 10.10.7.7 next-hop-self
> no auto-summary
> no synchronization
> network 10.10.6.6 mask 255.255.255.255 route-map COMM
> exit-address-family
> !
> address-family vpnv4
> neighbor 10.10.2.2 activate
> neighbor 10.10.2.2 send-community extended
> exit-address-family
>
> On Tue, May 12, 2009 at 2:58 PM, Bryan Bartik <bbartik_at_ipexpert.com> wrote:
>
>> Splinter, It looks like you have pasted only parts of your config. Are you
>> running BGP somewhere? I think you should be redistributing your OSPF routes
>> into the BGP VRF on R6, not the IS-IS protocol. I am assuming ISIS is your
>> Provider IGP, correct me if I am wrong.
>>
>> Bryan Bartik
>> CCIE #23707 (R&S), CCNP
>> Sr. Support Engineer - IPexpert, Inc.
>> URL: http://www.IPexpert.com
>>
>> On Tue, May 12, 2009 at 6:24 AM, Splinter <splinter330_at_gmail.com> wrote:
>>
>>> Hi All,
>>>
>>> Sorry for the long post.
>>>
>>> please need some assistance with this routing issue.
>>>
>>> here is my setup
>>>
>>> BB1 ----(OSPF)---- R6 ---(ISIS)--- R2 ---(OSPF)-vrf XYZ--- R3
>>>
>>> I have a route being advertised from BB1 12.12.12.12/32 via OSPF to R6
>>> then
>>> redistributed into ISIS. I see the route on router R2 routing table. and i
>>> can ping BB1 12.12.12.12 but i cannot ping from R3 sitting in VRF Site
>>> XYZ.
>>> what am i missing.
>>>
>>> R2#ping 12.12.12.12
>>>
>>> Type escape sequence to abort.
>>> Sending 5, 100-byte ICMP Echos to 12.12.12.12, timeout is 2 seconds:
>>> !!!!!
>>> Success rate is 100 percent (5/5), round-trip min/avg/max = 12/16/28 ms
>>> R2#
>>>
>>>
>>> BB1:
>>> router ospf 100
>>> router-id 12.12.12.12
>>> log-adjacency-changes
>>> network 12.12.12.12 0.0.0.0 area 0
>>> network 192.5.10.254 0.0.0.0 area 0
>>>
>>> R6:
>>> router ospf 100
>>> router-id 10.10.6.6
>>> log-adjacency-changes
>>> redistribute connected subnets
>>> redistribute static subnets
>>> redistribute isis level-1-2 subnets
>>> network 192.5.10.6 0.0.0.0 area 0
>>>
>>> router isis
>>> net 49.0010.0000.0000.0006.00
>>> metric-style wide
>>> mpls traffic-eng router-id Loopback0
>>> mpls traffic-eng level-2
>>> redistribute ospf 100 level-1-2
>>> redistribute bgp 267 route-map LABEL level-1-2
>>> redistribute isis ip level-2 into level-1 distribute-list 100
>>>
>>> R2:
>>> router isis
>>> net 49.0010.0000.0000.0002.00
>>> metric-style wide
>>> redistribute bgp 267 route-map LABEL level-1-2
>>> redistribute isis ip level-2 into level-1 distribute-list 100
>>>
>>> router ospf 100 vrf XYZ
>>> router-id 172.10.23.2
>>> log-adjacency-changes
>>> redistribute bgp 267 metric 200 subnets
>>> network 172.10.23.0 0.0.0.255 area 0
>>>
>>> address-family ipv4 vrf XYZ
>>> redistribute ospf 100 vrf XYZ match internal external 1 external 2
>>> no synchronization
>>> exit-address-family.
>>>
>>>
>>> Thanks
>>>
>>> Splinter
>>>
>>>
>>> Blogs and organic groups at http://www.ccie.net
>>>
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>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
>> --
>
>
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Received on Tue May 12 2009 - 16:35:26 ART