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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Curious question on hop identity...
On 2006-12-14-02:24:52, Fergie <[email protected]> wrote: > This may be far afield insofar as topic fodder Not in the slightest. To the contrary, it's one of the more on-topic postings I've seen as of late, and I mean that with all sincerity. > I am curious if anyone knows exactly what these two hops [9] [10] > below, actually are? [...] > 8 161 ms 157 ms * 68.87.226.130 > 9 169 ms 185 ms 171 ms 12.116.90.17 > 10 197 ms 198 ms 196 ms 12.122.114.66 > 11 157 ms 169 ms 175 ms ggr3-ge110.sffca.ip.att.net [12.122.82.169] > 12 145 ms 149 ms 148 ms 192.205.33.82 > 13 182 ms 196 ms 209 ms ae-2-54.bbr2.SanJose1.Level3.net If I had to guess, I'd say 9 is a /30 (/31?) on Comcast's transit interface, and 10 is a backbone device of some sort. Suffice it to say, AT&T doesn't consider maintaining accurate (or even inaccurate, for that matter) PTR records a priority. Some recent faves include: 6 ggr3-ge00.n54ny.ip.att.net (12.123.0.97) 1.538 ms 1.400 ms 1.422 ms 7 att-gw.dc.aol.com (192.205.32.2) 1.775 ms 1.816 ms 1.847 ms 8 0.ge-5-1-0.XL4.NYC4.ALTER.NET (152.63.3.121) 1.701 ms 1.742 ms 14.988 ms 5 cw-gw.n54ny.ip.att.net (192.205.32.197) 0.648 ms 0.635 ms ggr3-p3122.n54ny.ip.att.net (192.205.33.117) 0.838 ms 6 tbr1-p012204.sl9mo.ip.att.net (12.122.82.22) 1.596 ms 1.759 ms 1.466 ms 4 savvis-gw.cgcil02ck4.ip.att.net (208.175.10.94) [AS 3561] 56 msec 60 msec allegiance-gw.dlstx.ip.att.net (192.205.32.225) [AS 7018] 196 msec 5 tbr1-p014001.cgcil.ip.att.net (12.123.6.34) [AS 7018] 4 ggr2-p310.sffca.ip.att.net (12.123.12.18) [AS 7018] 32 msec 16 msec 20 msec 5 att-gw.ashburn.eli.net (192.205.32.74) [AS 7018] 20 msec 20 msec 20 msec 6 0.so-2-0-0.XL1.SCL2.ALTER.NET (152.63.57.50) [AS 701] 20 msec 16 msec 16 msec -a
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