>From 196.44.74.2 the packets take one path up to 196.44.74.254. To get
back they go through both tunnels which take different paths. I don't
think it is an MTU problem because if I disable one tunnel and just run
with one path things work perfectly.
-----Original Message-----
From: Giles Heron [mailto:giles@packetexchange.net]
Sent: Thursday, June 06, 2002 2:24 PM
To: Duane de Witt
Cc: cisco-nsp@puck.nether.net
Subject: RE: [nsp] MPLS TE
where is the ingress to the tunnels?
you should be able to do "show mpls forwarding-table a.b.c.d" for that?
(in other words in the core you should have 2 sets of tunnels - one
pointing to 196.44.74.2 and one pointing to the other end).
Giles
On Thu, 2002-06-06 at 09:49, Duane de Witt wrote:
> Thanks
>
> Does this confirm that there are reverse paths?
>
> RBA_Core#show mpls forwarding-table 196.44.74.2
> Local Outgoing Prefix Bytes tag Outgoing Next Hop
> tag tag or VC or Tunnel Id switched interface
> 23 Untagged[T] 196.44.74.2/32 4483970449 Tu100 point2point
> Untagged[T] 196.44.74.2/32 1910687302 Tu101 point2point
>
> [T] Forwarding through a TSP tunnel.
> View additional tagging info with the 'detail' option
>
>
>
> -----Original Message-----
> From: Giles Heron [mailto:giles@packetexchange.net]
> Sent: Thursday, June 06, 2002 12:31 PM
> To: Matt Ryan
> Cc: Duane de Witt; 'cisco-nsp@puck.nether.net'
> Subject: RE: [nsp] MPLS TE
>
> the other possibility is broken forwarding in the LSP from the
> destination back to the source.
>
> "normal" traffic may be able to pop out of the tunnel and then be
routed
> hop-by-hop, whilst VPN traffic of course will be discarded as the
> destination IPs are unknown at the core LSRs.
>
> I have seen this in the past with TDP LSPs.
>
> In fact the first thing to check is that there are LSPs in the reverse
> direction ;-)
>
> Giles
>
> On Thu, 2002-06-06 at 08:40, Matt Ryan wrote:
> > MTU issue as the label stack grows?
> >
> >
> > Matt.
> > -----Original Message-----
> > From: Duane de Witt [mailto:duane@uis.co.za]
> > Sent: 06 June 2002 08:24
> > To: 'cisco-nsp@puck.nether.net'
> > Subject: [nsp] MPLS TE
> >
> >
> > Hi Everyone
> >
> > Has anyone come across a problem where when using multiple paths to
a
> > destination with TE any traffic within a VRF doesn't get any return
> packets?
> >
> > I have two TE tunnels going from one router to another using
different
> > paths. Any normal traffic works fine, but as soon as I put the
traffic
> in a
> > VRF I can see the icmp packets hit the destination and I can see the
> return
> > packets been sent, but they never reach the source router.
> >
> > Thanks
> >
> >
> > Regards
> >
> > Duane de Witt
> > Siemens Business Services
> > Tel. +27 11 652 7613
> > Fax. +27 11 652 2018
> >
> >
> >
>
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> ======
> --
> =================================================================
> Giles Heron Principal Network Architect PacketExchange Ltd.
> ph: +44 7880 506185 "if you build it they will yawn"
> =================================================================
>
>
-- ================================================================= Giles Heron Principal Network Architect PacketExchange Ltd. ph: +44 7880 506185 "if you build it they will yawn" =================================================================
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