Jon,
Try turning on 'tag-switching ip propagate ttl' in global config on your
routers.... That pushes the label TTL into the IP header and vice-versa so
your traceroutes work correctly. It may or may not be on by default
depending on your version of IOS.
Scott
-- Scott A. Keoseyan (sak@broadwing.com) Principal Engineer - Lab Services B R O A D W I N G Inc.* 1881 Campus Commons, Suite 210 Reston, Virginia 20191 (703)391-1831 - (FAX)391-1810 http://www.broadwing.com/ccielab http://www.labyrinth.org/homepages/scott/home.html* Company name mentioned for identification purposes only.
> -----Original Message----- > From: jlewis@lewis.org [mailto:jlewis@lewis.org] > Sent: Tuesday, August 07, 2001 5:44 PM > To: cisco-nsp@puck.nether.net > Subject: [nsp] 7500 tag switching bugs > > > I've run into a problem with a 7500 (RSP4 with VIP2-50s) > apparently eating > icmp ttl exceeded packets if tag-switching is turned on (to > support MPLS > VPN traffic transitting the router). It's currently running > rsp-k3pv-mz.120-11.S3.bin. I haven't had much luck searching > for similar > bugs in bugnavigator. Has anyone else run into this and > found a version > that fixes it? Anyone tried 12.0.xST? I'm going to have to support > termination of MPLS VPNs on this router sooner or later. > > -- > ---------------------------------------------------------------------- > Jon Lewis *jlewis@lewis.org*| I route > System Administrator | therefore you are > Atlantic Net | > _________ http://www.lewis.org/~jlewis/pgp for PGP public key_________ >
This archive was generated by hypermail 2b29 : Sun Aug 04 2002 - 04:12:48 EDT