vix: ] The link you're alluding to is probably SprintLink's. It runs at or near ] capacity for most of every day, and while that's usually an indicator that ] a larger pipe is called for, it's also an indicator that the link is of use ] to at least some folks.
The interesting thing here is to ask WHY SL hasn't upgraded the line.
I've been told that they consider the T1 adequate.
The fact that the line hasn't been upgraded could imply that the CIX isn't of use to SL.
When the link went down due to a cross connect problem, an engineer and his manager inside SL worked all day and most of a night to get it restored.
Wouldn't have anything to do with the fact that it is a major cross connect between many providers and Sprint? CRL comes to mind. Rob