Level3 IPv6 peering with HE only in London?

Thu Apr 12 04:16:15 UTC 2012

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
>