Re: AT&T/L3 interconnect?

[Adam Davenport <adam () davenpro com>]

http://www.nanog.org/meetings/nanog45/presentations/Sunday/RAS_traceroute_N45.pdf


On Mon, Oct 11, 2010 at 2:08 PM, Deepak Jain <deepak () ai net> wrote:

> While jumping on the wagon of poking at a particular 175.x.x.x address, I
> noticed something in my trace:
>
> 10     5 ms     5 ms     5 ms  att-level3-30G.washingtondc.level3.net[4.68.62.30]
> 11    73 ms    72 ms    73 ms  cr2.wswdc.ip.att.net [12.122.84.82]
> 12    74 ms    74 ms    75 ms  cr1.cgcil.ip.att.net [12.122.18.21]
> 13    72 ms    72 ms    72 ms  cr2.dvmco.ip.att.net [12.122.31.85]
> 14    73 ms    72 ms    73 ms  cr1.slkut.ip.att.net [12.122.30.25]
> 15    73 ms    72 ms    72 ms  cr2.la2ca.ip.att.net [12.122.30.30]
> 16    72 ms    72 ms    72 ms  cr84.la2ca.ip.att.net [12.123.30.249]
> 17    73 ms    73 ms    73 ms  gar1.lsrca.ip.att.net [12.122.129.121]
>
> Does anyone happen to know where the other end of this tunnel is that
> magically everything from a DC-DC hop to a DC-LA hop are all exactly 73ms?
>
> thanks,
>
> DJ