nanog mailing list archives
Re: MPLS ICMP Extensions
From: "Haesu" <haesu () towardex com>
It would be cool to update the NANOG Traceroute with MPLS extensions. -hc -- Sincerely, Haesu C. TowardEX Technologies, Inc. WWW: http://www.towardex.com E-mail: haesu () towardex com Cell: (978) 394-2867 On Mon, Aug 18, 2003 at 12:26:34AM +0200, Jesper Skriver wrote:On Thu, Aug 14, 2003 at 01:40:01PM -0400, Leo Bicknell wrote:I wanted to get some other opinions on some new features that have appeared in recent code from the popular vendors. It appears there is a new draft, a copy of which can be found at http://www.watersprings.org/links/mlr/id/draft-ietf-mpls-icmp-01.txt
that
allows MPLS enabled boxes to return some additonal information in a traceroute packet. That's all well and good, and I can see how that might be amazingly useful to someone running an MPLS network, however, it seems to expose data much further than the local network. Here's a random example from a traceroute I recently performed (on a Juniper): traceroute wcg.net [snip] 11 hrndva1wcx3-oc48.wcg.net (64.200.95.117) 91.935 ms 102.652 ms
92.960 ms
MPLS Label=13198 CoS=0 TTL=1 S=1 12 hrndva1wcx2-oc48.wcg.net (64.200.95.77) 92.593 ms 92.785 ms
93.119 ms
MPLS Label=12676 CoS=0 TTL=1 S=1 13 nycmny2wcx2-oc48.wcg.net (64.200.240.45) 93.273 ms 93.121 ms
93.067 ms
MPLS Label=12632 CoS=0 TTL=1 S=1 14 nycmny2wcx3-oc48.wcg.net (64.200.87.78) 104.755 ms 91.949 ms
92.169 ms
MPLS Label=12672 CoS=0 TTL=1 S=1 15 chcgil1wcx3-oc48.wcg.net (64.200.240.37) 92.021 ms 91.737 ms
91.684 ms
MPLS Label=12592 CoS=0 TTL=1 S=1 16 chcgil1wcx3-pos5-0.wcg.net (64.200.210.114) 175.907 ms 278.144
ms 203.763 ms
MPLS Label=12695 CoS=0 TTL=1 S=1 17 chcgil1wcx2-oc48.wcg.net (64.200.103.73) 93.286 ms 93.230 ms
93.593 ms
MPLS Label=13506 CoS=0 TTL=1 S=1 18 stlsmo3wcf1-atm.wcg.net (64.200.210.158) 92.780 ms 92.344 ms
92.596 ms
If anyone is interested I have a patch for LBL traceroute to display this information too. Download ftp://ftp.ee.lbl.gov/traceroute.tar.gz, patch in http://e.wheel.dk/~jesper/traceroute.diff, and you will have jesper@tam:/home/jesper> traceroute wcg.net traceroute to wcg.net (64.200.241.26), 30 hops max, 40 byte packets 1 217.79.98.25.adsl.griffin.net.uk (217.79.98.25) 0.895 ms 0.836 ms
0.751 ms
2 217.79.96.209 (217.79.96.209) 21.557 ms 18.431 ms 19.075 ms 3 f0-0.core1.tchx.lon.uk.griffin.com (217.79.96.1) 19.768 ms 19.094
ms 19.285 ms
4 lndnuk1icx1.wcg.net (195.66.224.105) 18.824 ms 20.206 ms 19.800
ms
5 nycmny2wcx2-pos15-3.wcg.net (64.200.87.61) 126.360 ms 127.665 ms
127.702 ms
MPLS Label=12632 CoS=0 TTL=1 S=1 6 nycmny2wcx3-oc48.wcg.net (64.200.87.74) 125.205 ms 126.923 ms
125.993 ms
MPLS Label=12672 CoS=0 TTL=1 S=1 7 chcgil1wcx3-oc48.wcg.net (64.200.240.37) 126.425 ms 126.212 ms
126.220 ms
MPLS Label=12592 CoS=0 TTL=1 S=1 8 brvwil1wcxa-pos9-0.wcg.net (64.200.103.193) 126.920 ms 127.660 ms
127.462 ms
MPLS Label=12604 CoS=0 TTL=1 S=1 9 64.200.236.14 (64.200.236.14) 129.886 ms 125.499 ms 126.715 ms MPLS Label=13506 CoS=0 TTL=1 S=1 10 stlsmo3wcf1-atm.wcg.net (64.200.210.158) 126.080 ms 124.598 ms
125.235 ms
11 stl-clust01.wcg.net (64.200.241.26) 126.723 ms 124.544 ms 124.736
ms
/Jesper -- Jesper Skriver, jesper(at)skriver(dot)dk - CCIE #5456 One Unix to rule them all, One Resolver to find them, One IP to bring them all and in the zone to bind them.
Current thread:
- MPLS ICMP Extensions Leo Bicknell (Aug 14)
- Re: MPLS ICMP Extensions Jesper Skriver (Aug 17)
- Re: MPLS ICMP Extensions Haesu (Aug 18)
- Re: MPLS ICMP Extensions Duncan Meakins (Aug 18)
- Re: MPLS ICMP Extensions Haesu (Aug 18)
- <Possible follow-ups>
- RE: MPLS ICMP Extensions Mike Bernico (Aug 14)
- Re: MPLS ICMP Extensions Leo Bicknell (Aug 14)
- Re: MPLS ICMP Extensions Marc Binderberger (Aug 17)
- Re: MPLS ICMP Extensions Leo Bicknell (Aug 14)
- Re: MPLS ICMP Extensions Haesu (Feb 04)
- Re: MPLS ICMP Extensions Jesper Skriver (Aug 17)