nanog mailing list archives

Re: Level3 IPv6 peering with HE only in London?


From: Derek Ivey <derek () derekivey com>
Date: Thu, 12 Apr 2012 00:16:15 -0400

I'm seeing the same thing from my area (Harrisburg, PA). Strange.

*Show Level 3 (Harrisburg, PA) Traceroute to www.he.net*
1 vl-17.car1.Pittsburgh3.Level3.net (2001:1900:35::21) 208 msec 200 msec 276 msec 2 vl-4044.car1.Washington1.Level3.net (2001:1900:4:1::2B9) 48 msec 208 msec 200 msec 3 vl-4083.car2.Washington1.Level3.net (2001:1900:4:1::DE) 200 msec 312 msec 104 msec 4 vl-4061.car1.NewYork2.Level3.net (2001:1900:4:1::106) 160 msec 100 msec 124 msec 5 vl-4041.car1.NewYork1.Level3.net (2001:1900:4:1::101) 80 msec 156 msec 56 msec 6 vl-4086.edge3.London1.Level3.net (2001:1900:6:1::11) 212 msec 116 msec 248 msec
  7 vl-4081.edge4.London1.Level3.net (2001:1900:5:1::106) 200 msec
    vl-4081.edge3.London1.Level3.net (2001:1900:5:1::102) 200 msec 204 msec
  8 2001:1900:5:3::11E 208 msec 204 msec 208 msec
9 10gigabitethernet7-4.core1.nyc4.he.net (2001:470:0:128::1) 204 msec 40 msec 200 msec 10 10gigabitethernet5-3.core1.lax1.he.net (2001:470:0:10E::1) 408 msec 404 msec 260 msec 11 10gigabitethernet7-4.core1.fmt2.he.net (2001:470:0:18D::1) 368 msec 380 msec 416 msec 12 10gigabitethernet2-1.core1.fmt1.he.net (2001:470:0:2D::1) 256 msec 400 msec 224 msec

C:\Users\Derek>tracert 2001:1900:35::21 (from my HE tunnel)

Tracing route to vl-17.car1.Pittsburgh3.Level3.net [2001:1900:35::21]
over a maximum of 30 hops:
...
3 16 ms 14 ms 21 ms gige-g4-12.core1.ash1.he.net [2001:470:0:90::1] 4 25 ms 25 ms 24 ms 10gigabitethernet1-2.core1.nyc4.he.net [2001:470:0:36::2] 5 88 ms 90 ms 98 ms 10gigabitethernet1-2.core1.lon1.he.net [2001:470:0:128::2] 6 88 ms 89 ms 89 ms ge-5-3-2.edge4.London.Level3.net [2001:1900:5:3::11d] 7 88 ms 89 ms 89 ms vl-4080.edge4.London1.Level3.net [2001:1900:5:1::105] 8 158 ms 158 ms 158 ms vl-4086.car1.NewYork1.Level3.net [2001:1900:6:1::12] 9 163 ms 163 ms 163 ms ae-2-4047.edge2.Washington12.Level3.net [2001:1900:4:1::3b9] 10 163 ms 163 ms 163 ms ae-1-4080.edge1.Washington12.Level3.net [2001:1900:4:1::3d9] 11 164 ms 164 ms 164 ms vl-4046.car1.Washington1.Level3.net [2001:1900:4:1::3b2] 12 177 ms 177 ms 187 ms vl-17.car1.Pittsburgh3.Level3.net [2001:1900:35::21]

Trace complete.


On 4/12/2012 12:08 AM, Dave Sotnick wrote:
Hello Nanog,

Looks like Level3's only IPv6 route to HE is via London right now:

Show Level 3 (Las Vegas, NV) Traceroute to www.he.net
  1 vl-5.bar1.LasVegas1.Level3.net (2001:1900:2F::1) 0 msec 0 msec 0 msec
  2 vl-11.bar2.LasVegas1.Level3.net (2001:1900:4:1::3C6) 0 msec 0 msec 0 msec
  3 vl-4045.car1.Denver1.Level3.net (2001:1900:4:1::276) 84 msec 228
msec 224 msec
  4 vl-4081.car2.Denver1.Level3.net (2001:1900:4:1::32) 20 msec 20 msec 20 msec
  5 vl-4042.edge1.Chicago2.Level3.net (2001:1900:4:1::36) 44 msec 44 msec 44 msec
  6 vl-4067.car1.Chicago1.Level3.net (2001:1900:4:1::1D) 48 msec 212
msec 224 msec
  7 vl-4061.car2.NewYork2.Level3.net (2001:1900:4:1::22) 184 msec 216
msec 232 msec
  8 vl-4080.car1.NewYork2.Level3.net (2001:1900:4:1::F1) 80 msec 80 msec 80 msec
  9 vl-4041.car1.NewYork1.Level3.net (2001:1900:4:1::101) 80 msec 80 msec 80 msec
  10 vl-4086.edge3.London1.Level3.net (2001:1900:6:1::11) 176 msec 144
msec 164 msec
  11 vl-4081.edge3.London1.Level3.net (2001:1900:5:1::102) 136 msec 132 msec
    vl-4081.edge4.London1.Level3.net (2001:1900:5:1::106) 148 msec
  12 2001:1900:5:3::11E 160 msec 156 msec 160 msec
  13 10gigabitethernet7-4.core1.nyc4.he.net (2001:470:0:128::1) 344
msec 208 msec 200 msec
  14 10gigabitethernet5-3.core1.lax1.he.net (2001:470:0:10E::1) 276
msec 260 msec 268 msec
  15 10gigabitethernet7-4.core1.fmt2.he.net (2001:470:0:18D::1) 272
msec 272 msec 324 msec
  16 10gigabitethernet2-1.core1.fmt1.he.net (2001:470:0:2D::1) 288 msec
272 msec 276 msec
  17  *  *  *
  18  *  *  *

Confirmed by L3's looking glasses (
http://lg.level3.net/traceroute/traceroute.cgi?site=lvg1&target=www.he.net&ipv6=true
) and my own corporate IPv6 connection from Level 3.

I opened a ticket with Level 3. Anyone else seen this?

-Dave



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