nanog mailing list archives
Re: Traceroute versus other performance measurement
From: Marshall Eubanks <tme () 21rst-century com>
Date: Wed, 29 Nov 2000 12:57:47 -0500
Mark Borchers wrote:
Presumably you're asking if it's a good tool to measure *available* bandwidth or lack thereof, i.e. congestion and its byproducts of packet loss and increased latency. No, it isn't! - Congestion resulting from asymmetric paths can be misinterpreted through traceroute. - Cases where ICMP performance with respect to the routers themselves is significantly lower than throughput of production traffic will often skew results. Having said that, where traceroutes suggest a POSSIBLE problem on my own network, I'd check further. However, I would never ask the operator of another network to troubleshoot solely on the basis of traceroute output.-----Original Message----- From: Paul Bradford [mailto:paul () adelphia net] Sent: Wednesday, November 29, 2000 9:08 AM To: nanog () merit edu Subject: Traceroute versus other performance measurement I need help with a reality/sanity check. Traceroute is a good tool for checking for routing type problems (loops). Does anyone feel it's a good tool to use for testing "bandwidth"....
Also, on some routers, traceroute requires going through the "slow path" (i.e., the router CPU), and show delays much larger than actual operational packets will encounter. -- Regards Marshall Eubanks T.M. Eubanks Multicast Technologies, Inc 10301 Democracy Lane, Suite 410 Fairfax, Virginia 22030 Phone : 703-293-9624 Fax : 703-293-9609 e-mail : tme () on-the-i com tme () multicasttech com http://www.on-the-i.com http://www.buzzwaves.com
Current thread:
- Traceroute versus other performance measurement Paul Bradford (Nov 29)
- Re: Traceroute versus other performance measurement Ping Pan (Nov 29)
- Re: Traceroute versus other performance measurement grisha (Nov 29)
- Re: Traceroute versus other performance measurement Daniel Senie (Nov 29)
- Re: Traceroute versus other performance measurement Bruce A. Mah (Nov 29)
- Re: Traceroute versus other performance measurement Valdis . Kletnieks (Nov 29)
- Re: Traceroute versus other performance measurement Quark Physics (Nov 29)
- Re: Traceroute versus other performance measurement Andrew Brown (Nov 29)
- <Possible follow-ups>
- RE: Traceroute versus other performance measurement Mark Borchers (Nov 29)
- Re: Traceroute versus other performance measurement Marshall Eubanks (Nov 29)
- Re: Traceroute versus other performance measurement smd (Nov 29)
- Re: Traceroute versus other performance measurement Daniel Senie (Nov 29)
- Re: Traceroute versus other performance measurement Joel Jaeggli (Nov 29)
- Re: Traceroute versus other performance measurement Daniel Senie (Nov 29)
- Re: Traceroute versus other performance measurement smd (Nov 29)
- Re: Traceroute versus other performance measurement smd (Nov 29)
- Re: Traceroute versus other performance measurement David Charlap (Nov 29)
- Re: Traceroute versus other performance measurement smd (Nov 29)
- Re: Traceroute versus other performance measurement Kai Schlichting (Nov 29)
- Re: Traceroute versus other performance measurement smd (Nov 29)
- Re: Traceroute versus other performance measurement smd (Nov 29)
(Thread continues...)
- Re: Traceroute versus other performance measurement Ping Pan (Nov 29)