From: Mark Lewis (mark@mjlnet.com)
Date: Wed Nov 10 2004 - 17:55:50 GMT-3
Rather than repeat myself :) you might like to go to the following webpage:
http://www.ciscopress.com/title/1587051044
Click on 'Sample Chapter(s)' on the left side, and read the pdf (follow the
flowchart in figure 6-30). The pdf on this webpage is only about 1/3 of the
MPLS L3 VPN chapter in the book, but I think it will probably cover your
issue (assuming that it is, as your post suggests, an LSP issue).
Hope that helps,
Mark
CCIE#6280 / CCSI#21051 / etc.
Author: http://www.amazon.com/exec/obidos/ASIN/1587051044/
>From: "Dalu-Chandu, Jay" <JD163604@NCR.COM>
>Reply-To: "Dalu-Chandu, Jay" <JD163604@NCR.COM>
>To: comserv@groupstudy.com, ccielab@groupstudy.com
>Subject: MPLS/VPN/ISIS
>Date: Wed, 10 Nov 2004 17:50:20 -0000
>
>Guys,
>
>I have a question regarding a sample lab configuration I'm currently
working
>on. The IGP used is ISIS with two areas 49.0001 and 49.0005. Within area
1
>I have an L1 only router attached to a L1L2 router, which is in turn
>attached to a L2 router in area 5.
>
>R1(L1)--------R3(L1/L2)----------R5(L2)
>
>R1 and R5 are PE routers, R3 is a P router. A BGP relationship for vpnv4
>has been established to the loopbacks of the PE devices. I can see the vrf
>routes associated on each PE device. When I try to ping an IP address
>within the vrf from R1 to R5 I see cef drops (debug ip cef drops). I
notice
>that no label exists for the next-hop-address of R5 because I am only
>receiving the default from R3. To correct this I route-leaked L2 into L1
>for R5's loopback.
>
>Now I have a label and no more cef packet drops on R1. But I still cannot
>ping. R5 complains that it does not have a parent tag when I try pinging
>from there (debug ip cef drops). I also notice that only a single label is
>imposed when looking at show ip cef vrf xxx A.B.C.D? Can anyone help, am I
>missing something obvious?
>
>Regards
>
>Jay Dalu-Chandu
>
>--
>Network Consultant (BEng, CCNP)
>NCR UK Limited
>Mobile: 07803231944
>Email: jay.dalu-chandu@ncr.com
>
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