Date: Mon, 18 Feb 2008 12:41:16 +0200 From: John Hay <jhay@meraka.org.za> To: Rui Paulo <rpaulo@FreeBSD.org> Cc: freebsd-net@freebsd.org Subject: Re: traceroute AS path patch Message-ID: <20080218104116.GA56893@zibbi.meraka.csir.co.za> In-Reply-To: <5C5B3E4E-AE10-449C-925C-C9AB681FB6C3@FreeBSD.org> References: <5C5B3E4E-AE10-449C-925C-C9AB681FB6C3@FreeBSD.org>
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Hi Rui, On Sun, Feb 17, 2008 at 09:30:44PM +0000, Rui Paulo wrote: > Hi, > The attached patch ports a traceroute functionality from FreeBSD > called AS path. > The concept is simple. On each hop we query a whois server to find the > corresponding hop AS number. > > I think it doesn't hurt if we have this functionality. > > An example output: > traceroute to freebsd.org (69.147.83.40), 64 hops max, 72 byte packets > ... > 7 [AS6453] if-2-1.core1.PV9-Lisbon.teleglobe.net (195.219.187.21) > 35.105 ms 34.008 ms 35.334 ms > 8 [AS6453] 195.219.144.5 (195.219.144.5) 63.880 ms 60.448 ms > 60.809 ms > 9 [AS6453] 195.219.144.10 (195.219.144.10) 138.593 ms 193.709 ms > 173.415 ms > 10 [AS7199] if-2-0.core1.NJY-Newark.teleglobe.net (216.6.63.10) > 133.912 ms 134.393 ms 144.071 ms > 11 [AS9557] if-3-1.mcore3.NJY-Newark.teleglobe.net (216.6.57.1) > 135.600 ms 144.979 ms 168.247 ms > 12 [AS9557] if-12-0-0-741.core4.AEQ-Ashburn.teleglobe.net > (216.6.57.70) 180.346 ms 138.718 ms 138.927 ms > 13 [AS6453] 64.86.85.38 (64.86.85.38) 142.745 ms 143.163 ms > 143.358 ms > 14 [AS26085] so-0-0-0.pat2.pao.yahoo.com (216.115.101.130) 252.417 > ms 213.377 ms 212.859 ms > 15 [AS26085] ge-0-1-0-p301.pat1.sjc.yahoo.com (216.115.106.147) > 214.709 ms 213.198 ms 235.253 ms > 16 [AS26085] g-1-0-0-p160.msr1.sp1.yahoo.com (216.115.107.61) > 219.091 ms > [AS26085] g-0-0-0-p170.msr2.sp1.yahoo.com (216.115.107.81) > 217.650 ms > [AS26085] g-1-0-0-p160.msr1.sp1.yahoo.com (216.115.107.61) > 286.376 ms > 17 [AS36752] ge-1-45.bas-b2.sp1.yahoo.com (209.131.32.49) 213.747 ms > [AS36752] ge-1-41.bas-b2.sp1.yahoo.com (209.131.32.33) 274.140 ms > [AS36752] ge-1-45.bas-b2.sp1.yahoo.com (209.131.32.49) 213.341 ms > 18 [AS36752] freebsd.org (69.147.83.40) 214.386 ms 223.515 ms > 212.548 ms > > > What do you think? Would it be difficult to add it to traceroute6 too? It would be great if we can keep features in sync. John -- John Hay -- John.Hay@meraka.csir.co.za / jhay@FreeBSD.org
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