Thanks Adam. I understood. Yes, i was using same OSPF domain ID (Process ID) on both PE-CE ends.
Regards, Venkat http://ippoint.wordpress.com/ <http://ippoint.wordpress.com/> On Tue, Mar 16, 2010 at 12:06 AM, Vitkovsky, Adam <[email protected]>wrote: > I've checked my labs and notes on this and as the help to the command > "capability vrf-lite" says - "Do not perform PE specific checks" -it indeed > among other checks disables checking of the ospf domain-id against the bgp > domain-id extended community during redistribution of VPNv4 BGP routes to > ospf > > What Cisco has to say: > > Defaults: > by default domain-id is equal to the process id associated with the OSPF > vrf instance. 0005 is used as a domain-id type. > (Venkat -I bet you had the same ospf process ids on both PE routers) > > Usage Guidelines: > Domain-id is an 8 byte identifier that idetifies OSPF domain of the > prefix. When OSPF route is > redistributed to BGP VPNv4 route in the MPLS VPN context, Domain-id > extended community is attached to the BGP update. Domain-id is used on > the egress PE, when BGP VPNv4 route is redistributed to OSPF to decide > what type of LSA to generate as a result of the redistribution of the > BGP VPNv4 route. > > adam > > -----Original Message----- > From: Vitkovsky, Adam > Sent: Monday, March 15, 2010 6:14 PM > To: '[email protected]' > Subject: "capability vrf-lite" on PE routers. (venkat) > > Hi, > I found this interesting, > I believe the "special" treatment of routes on the PEs when redistributing > form ospf to mp-bgp and especially back to ospf is somehow disabled when the > "capability vrf-lite" command is entered and the redistribution is treated > as a regular bgp to ospf or any protocol to ospf redistribution -which > results in the external routes in ospf database > > Would that be a safe assumption please? > > > adam > -----Original Message----- > From: [email protected] [mailto: > [email protected]] On Behalf Of > [email protected] > Sent: Monday, March 15, 2010 5:00 PM > To: [email protected] > Subject: CCIE_SP Digest, Vol 36, Issue 7 > > Send CCIE_SP mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://onlinestudylist.com/mailman/listinfo/ccie_sp > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of CCIE_SP digest..." > > > Today's Topics: > > 1. "capability vrf-lite" on PE routers. (venkat) > 2. Re: "capability vrf-lite" on PE routers. (Marko Milivojevic) > 3. filtering routes in ISIS (Praveen g) > 4. Re: filtering routes in ISIS (matt reath) > 5. Re: filtering routes in ISIS (Praveen g) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 15 Mar 2010 01:55:01 +0530 > From: venkat <[email protected]> > Subject: [OSL | CCIE_SP] "capability vrf-lite" on PE routers. > To: "<[email protected]>" <[email protected]> > Message-ID: > <[email protected]> > Content-Type: text/plain; charset="iso-8859-1" > > Hi Experts, > > Here is a simple topology; > > CE1-----PE1----MPLS n/w----- PE2------CE2 > > OSPF(area 0) is running between PE and CE. As expected, i could see the > loopback IP (advertise via ospf) of CE1 in CE2 as "IA" summary routes. > When i enabled "*capability vrf-lite" *command on PE2, the same routes are > appeared as "E2" routes in CE2. The cisco CLI document doesnt give much > info > about this type conversation. Could you please explain what really going on > after enabling "*capability vrf-lite" * > * > * > *R6 is CE2.* > * > * > * > R6#show ip route ospf > 100.0.0.0/32 is subnetted, 1 subnets > O IA 100.100.100.100 [110/3] via 13.1.2.1, 00:01:43, FastEthernet0/0 > 12.0.0.0/24 is subnetted, 1 subnets > O IA 12.1.1.0 [110/2] via 13.1.2.1, 00:01:43, FastEthernet0/0 > 13.0.0.0/24 is subnetted, 2 subnets > O 13.1.1.0 [110/2] via 13.1.2.1, 00:01:43, FastEthernet0/0 > R6# > R6# > R6# > *Mar 1 02:41:11.043: %OSPF-5-ADJCHG: Process 1, Nbr 13.1.2.1 on > FastEthernet0/0 from LOADING to FULL, Loading Done > R6# > R6# > R6#show ip route ospf > 100.0.0.0/32 is subnetted, 1 subnets > O E2 100.100.100.100 [110/2] via 13.1.2.1, 00:01:12, FastEthernet0/0 > 12.0.0.0/24 is subnetted, 1 subnets > O E2 12.1.1.0 [110/1] via 13.1.2.1, 00:01:12, FastEthernet0/0 > 13.0.0.0/24 is subnetted, 2 subnets > O 13.1.1.0 [110/2] via 13.1.2.1, 00:01:12, FastEthernet0/0 > R6# > * > * > * > > Thanks, > Venkat > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > http://onlinestudylist.com/pipermail/ccie_sp/attachments/20100315/07d500d5/attachment.html > > ------------------------------ > > Message: 2 > Date: Sun, 14 Mar 2010 23:05:55 +0000 > From: Marko Milivojevic <[email protected]> > Subject: Re: [OSL | CCIE_SP] "capability vrf-lite" on PE routers. > To: venkat <[email protected]> > Cc: "<[email protected]>" <[email protected]> > Message-ID: > <[email protected]> > Content-Type: text/plain; charset=UTF-8 > > When you enable this function, DS-bit in Type-3 LSAs is ignored. > > -- > Marko Milivojevic - CCIE #18427 > Senior Technical Instructor - IPexpert > > Mailto: [email protected] > Telephone: +1.810.326.1444 > Fax: +1.810.454.0130 > Web: http://www.ipexpert.com/ > > On Sun, Mar 14, 2010 at 20:25, venkat <[email protected]> wrote: > > Hi Experts, > > ?Here is a simple topology; > > CE1-----PE1----MPLS n/w----- PE2------CE2 > > OSPF(area 0) is running between PE and CE. As expected, i could see the > > loopback IP (advertise via ospf) of CE1 in CE2 as "IA" summary routes. > > When i enabled "capability vrf-lite" command on PE2, the same routes are > > appeared as "E2" routes in CE2. The cisco CLI document doesnt give much > info > > about this type conversation. Could you please explain what really going > on > > after enabling?"capability vrf-lite" > > R6 is CE2. > > R6#show ip route ospf > > ?? ? 100.0.0.0/32 is subnetted, 1 subnets > > O IA ? ?100.100.100.100 [110/3] via 13.1.2.1, 00:01:43, FastEthernet0/0 > > ?? ? 12.0.0.0/24 is subnetted, 1 subnets > > O IA ? ?12.1.1.0 [110/2] via 13.1.2.1, 00:01:43, FastEthernet0/0 > > ?? ? 13.0.0.0/24 is subnetted, 2 subnets > > O ? ? ? 13.1.1.0 [110/2] via 13.1.2.1, 00:01:43, FastEthernet0/0 > > R6# > > R6# > > R6# > > *Mar ?1 02:41:11.043: %OSPF-5-ADJCHG: Process 1, Nbr 13.1.2.1 on > > FastEthernet0/0 from LOADING to FULL, Loading Done > > R6# > > R6# > > R6#show ip route ospf > > ?? ? 100.0.0.0/32 is subnetted, 1 subnets > > O E2 ? ?100.100.100.100 [110/2] via 13.1.2.1, 00:01:12, FastEthernet0/0 > > ?? ? 12.0.0.0/24 is subnetted, 1 subnets > > O E2 ? ?12.1.1.0 [110/1] via 13.1.2.1, 00:01:12, FastEthernet0/0 > > ?? ? 13.0.0.0/24 is subnetted, 2 subnets > > O ? ? ? 13.1.1.0 [110/2] via 13.1.2.1, 00:01:12, FastEthernet0/0 > > R6# > > > > Thanks, > > Venkat > > _______________________________________________ > > For more information regarding industry leading CCIE Lab training, please > > visit www.ipexpert.com > > > > > > > ------------------------------ > > Message: 3 > Date: Mon, 15 Mar 2010 15:54:45 +0400 > From: Praveen g <[email protected]> > Subject: [OSL | CCIE_SP] filtering routes in ISIS > To: [email protected] > Message-ID: > <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi, > what is the best way to filter routes in ISIS when redistributing BGP > Ofcourse, you can use route-map with prefix-list or ACL or metric > i tried doing some sample lab but nothing worked. > can any one let me know how to enable > Thanks > G Praveen > > > ------------------------------ > > Message: 4 > Date: Mon, 15 Mar 2010 07:29:44 -0500 > From: matt reath <[email protected]> > Subject: Re: [OSL | CCIE_SP] filtering routes in ISIS > To: Praveen g <[email protected]> > Cc: [email protected] > Message-ID: > <[email protected]> > Content-Type: text/plain; charset="iso-8859-1" > > A standard ACL and route-map should do the trick. If thats not working > please post the config you are using and verify the routes exist in the BGP > table. 'sh ip bgp' > > On Mon, Mar 15, 2010 at 6:54 AM, Praveen g <[email protected] > >wrote: > > > Hi, > > what is the best way to filter routes in ISIS when redistributing BGP > > Ofcourse, you can use route-map with prefix-list or ACL or metric > > i tried doing some sample lab but nothing worked. > > can any one let me know how to enable > > Thanks > > G Praveen > > _______________________________________________ > > For more information regarding industry leading CCIE Lab training, please > > visit www.ipexpert.com > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > http://onlinestudylist.com/pipermail/ccie_sp/attachments/20100315/098c2ccf/attachment-0001.htm > > ------------------------------ > > Message: 5 > Date: Mon, 15 Mar 2010 16:38:39 +0400 > From: Praveen g <[email protected]> > Subject: Re: [OSL | CCIE_SP] filtering routes in ISIS > To: matt reath <[email protected]> > Cc: [email protected] > Message-ID: > <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi, > > i tried using the route-map with ACL and redistributing with BGP it did not > work > > i am trying simple setup. > > R1 is connected to R2 and R3 > > R2 is connected to R3 and R5 > > R3 is connected to R2 and R5 > > R2,R3,R5 is full mesh. > > lets say R1,R2,R3 is as 10 and R5,R6 is in AS 1010 > > all routes from AS10 should take R3 primary path to BB and R2 primary to AS > 1010 > > the routes are flipping.i used ACL to deny the routes and matched that > into route-map then redistributed. > > let me know the status. > > all the routes are in sh ip bgp > > Thanks > > GP > > > > On Mon, Mar 15, 2010 at 16:29, matt reath <[email protected]> wrote: > > A standard ACL and route-map should do the trick.? If thats not working > > please post the config you are using and verify the routes exist in the > BGP > > table. 'sh ip bgp' > > > > On Mon, Mar 15, 2010 at 6:54 AM, Praveen g <[email protected]> > > wrote: > >> > >> Hi, > >> what is the best way to filter routes in ISIS when redistributing BGP > >> Ofcourse, you can use route-map with prefix-list or ACL or metric > >> i tried doing some sample lab but nothing worked. > >> can any one let me know how to enable > >> Thanks > >> G Praveen > >> _______________________________________________ > >> For more information regarding industry leading CCIE Lab training, > please > >> visit www.ipexpert.com > > > > > > > End of CCIE_SP Digest, Vol 36, Issue 7 > ************************************** > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
