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Re: Cogent now peering with Sprint?
On Tue, Oct 31, 2006 at 09:51:47AM -0500, James Jun wrote: > > > 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 (220.127.116.11) 4 msec 4 msec 4 msec > 3 p12-3.core01.lax05.atlas.cogentco.com (18.104.22.168) [AS 174] 4 msec 4 > msec 4 msec customers have some say over whats what.. at least one of my transits is using a /30 we assign to be honest i'd be suspicious if 'most ' nets are from cogent as thats not indicative of an equal peering relationship they still buy from verio and they have /30s with them also: 22.214.171.124.in-addr.arpa domain name pointer verio.sjc03.atlas.cogentco.com. (of course, that may be a peer port too.. this is all conjecture! as patrick says the adjacencys are the interesting thing, not the $$) Steve