[c-nsp] tag-switching on the 6500?

[Mike Bernico]

I'm doing LDP on 7600s (same as 6500) with sup720 3BXLs.  While we're
having many horrible problems with the 7600, LDP seems to work ok.  

I looked up a document that said the sup2/msfc2/pfc2 was ok for EoMPLS,
MPLS CoS, and MPLS VPN (not TE) so my guess is that it should work with
TDP.  

The first thing I'd check is if the packets coming out of the 6500 to
the 7500 are getting labeled.  If I had to guess, I'd guess TDP was
advertising labels but label imposition isn't happening on your packets
because you used card X instead of card Y and card X only labels packets
on Tuesdays.  (Sorry, I'm bitter)  I'd be especially careful of card
support when it comes to L2VPNs.  

Good Luck,

Mike



-----Original Message-----
From: Jon Lewis [mailto:jlewis at lewis.org] 
Sent: Thursday, January 20, 2005 10:45 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] tag-switching on the 6500?

Is anyone doing tag-switching on 6500s mixed with cisco router platforms
(7xxx, 36xx)?  While trying to turn up a 6509 (sup2/msfc2/pfc2) running
12.2(18)SXD3, I've found that while TDP appears to work, our 7500s fail
to
switch some packets tagged by the 6509.  I've been afraid to turn on
much
debugging on live routers passing large amounts of traffic, the above is
about all the detail I have so far.

I'm basically wondering if there's some knob I've not encountered on the
router platforms that needs to be set on the 6509 in order for
tag-switching to work properly, or if it just doesn't entirely work on
sup2/msfc2?

----------------------------------------------------------------------
 Jon Lewis                   |  I route
 Senior Network Engineer     |  therefore you are
 Atlantic Net                |
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