Cogent now peering with Sprint?

steve at telecomplete.co.uk steve at telecomplete.co.uk
Wed Nov 1 11:27:56 UTC 2006


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 (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

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:
58.13.54.154.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



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