v6 routing pessimism

[Nick Hilliard]

You know, it's always fun when traffic takes a slightly circuitous route
from A to B, but is it really necessary for ipv6 from dublin to
amsterdam to go:

dublin
CA, USA
IN, USA
seoul, korea
beijing, china
WA, USA
NYC, USA
london
amsterdam

?

And before anyone starts pointing the finger at the immediate upstream
(AS2110), this goes well beyond any misconfiguration they might have.

The AS path is a hilarious "2110 3549 11537 17579 1237 17832 24136 109
109 6939 3257 3333" - ouch!

Nick Hilliard

--

twinkie:/home/nick> traceroute6 www.ripe.net
traceroute6 to kite-www.ripe.net (2001:610:240:0:a843::8) from 2001:7c8:51:d::2, 64 hops max, 12 byte packets
 1  2001:7c8:51:d::1  24.551 ms  25.363 ms  29.466 ms
 2  fe2-0.6rt501.cwt.esat.net  25.545 ms  30.837 ms  25.744 ms
 3  fe0-0.6core001.cwt.esat.net  25.990 ms  29.274 ms  26.562 ms
 4  fe1-0.6br002.cwt.esat.net  26.194 ms  28.596 ms  28.240 ms
 5  2001:450:1:2001::c0  297.667 ms  374.650 ms  307.825 ms
 6  3ffe:80a::c  283.053 ms  269.354 ms  264.996 ms
 7  3ffe:80a::c  274.048 ms  266.894 ms  262.179 ms
 8  3ffe:80a::bd  262.365 ms  259.719 ms  260.512 ms
 9  sttlng-snvang.abilene.ucaid.edu  276.447 ms  275.009 ms  269.765 ms
10  2001:468:ff:16c1::6  456.615 ms  466.958 ms  466.970 ms
11  2001:320:1b00:1::1  455.235 ms  473.424 ms  467.670 ms
12  2001:320:1a05::4  460.621 ms  483.173 ms  471.106 ms
13  2001:320:1a06::2  458.305 ms  463.229 ms  467.939 ms
14  2001:320:1a07::20  465.043 ms  464.923 ms  468.042 ms
15  2001:320:1a07::2  464.441 ms  475.520 ms  465.939 ms
16  2001:2b8:0:81::82  468.064 ms  469.388 ms  476.418 ms
17  2001:2b8:4:30::2  675.663 ms  679.488 ms  683.676 ms
18  2001:dc7:ff:1000::2  687.167 ms  699.041 ms  693.122 ms
19  equinix6-was.ip.tiscali.net  438.838 ms  440.648 ms  440.359 ms
20  so-0-1-3.was10.ip6.tiscali.net  441.282 ms  442.252 ms  444.234 ms
21  so-0-0-0.nyc33.ip6.tiscali.net  443.926 ms  442.760 ms  442.975 ms
22  so-4-0-0.lon12.ip6.tiscali.net  443.613 ms  451.108 ms  442.985 ms
23  pos-7-1-1.ams11.ip6.tiscali.net  451.892 ms  453.952 ms  451.704 ms
24  so-7-0-0.ams10.ip6.tiscali.net  451.118 ms  447.377 ms  453.726 ms
25  nikipv6.ripe.net  455.056 ms  468.151 ms  465.417 ms
26  2001:610:240:0:a843::8  462.339 ms  464.724 ms  477.005 ms
twinkie:/home/nick>