On Oct 31, 2006, at 2:12 AM, Bob Collie wrote:
That looks like a transit connection that Cogent bought at Ashburn, VA, not SFI peering connection.
Hrmm, I can't tell by looking at a traceroute who paid whom, if anyone. Care to explain your magic? Is there a code in the in- addrs? Perhaps "sl-$FOO" means something in Sprint-speak?
Yea, but most of xfer-nets in this case appear to be assigned by Cogent (then again, how does that make any difference for special buy|peer cases): 2 sl-st21-la-13-0.sprintlink.net (144.232.20.69) 4 msec 4 msec 4 msec 3 p12-3.core01.lax05.atlas.cogentco.com (154.54.13.41) [AS 174] 4 msec 4 msec 4 msec 11 sprint.iad01.atlas.cogentco.com (154.54.13.62) 12.032 ms 12.061 ms 12.103 ms 9 sprint.dfw03.atlas.cogentco.com (154.54.10.18) 21.964 ms 21.897 ms 21.756 ms Etc.. And comm tags from Sprint side look similar to other SFI's: 1239 174 144.228.241.81 from 144.228.241.81 (144.228.241.81) Origin IGP, metric 4294967294, localpref 100, valid, external Community: 1239:321 1239:1000 1239:1011 1239 209 144.228.241.81 from 144.228.241.81 (144.228.241.81) Origin IGP, metric 4294967294, localpref 100, valid, external Community: 1239:321 1239:1000 1239:1011
Anyone who thinks "X pays Y" is more important than any of the metrics above needs to reevaluate their priorities. (At least from a customer / engineering PoV. I wouldn't suggest $NETWORK's bean counters have the same priorities as their network engineers & customers. :)
IMHO, of course.
Indeed, at the end of the day, it really doesn't matter these days :) james