Comments on: SBC traceroute weirdness https://ward.vandewege.net/blog/2006/03/sbc-traceroute-weirdness/ Tue, 03 Mar 2015 22:55:12 +0000 hourly 1 By: jag https://ward.vandewege.net/blog/2006/03/sbc-traceroute-weirdness/comment-page-1/#comment-3 Mon, 27 Mar 2006 17:46:49 +0000 http://ward.vandewege.net/blog/2006/03/27/40/#comment-3 Traceroutes aren’t necessarily a good way to determine route efficiency these days, because it only looks at layer 3 switching. It does nothing to report ATM switching, which can have as much overhead with virtual path rewrites as next-hop information on an IP packet. The Speakeasy path might include just as many ATM switches as you saw hops in California’s SBC routes — you just wouldn’t know it.

-jag

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