To: SI Brad who wrote (3089 ) 10/28/1998 11:32:00 PM From: Gary Korn Respond to of 32871
Brad, FYI, I'm finally resolving a problem with access to SI that I thought had been SI's problem. Others may want to make note of this issue because I'm guessing that it can crop up with other providers as well. I'm on a T1 through a provider that has its own internet backbone. I selected this provider to avoid going through several tiers until I hit the backbone. Notwithstanding, I constantly run into time-outs and lengthy delays in trying to access SI. I assumed it was SI given the fact that I was running a T1. It appears not. When the same problem surfaced with other sites, we did some checking. It appears that a lot of sites (e.g., SI) do not "publish" to the backbone owned by my provider, i.e., the T1s, T3s, etc. of these sites are hooked directly to some other backbone owners, such as UUNET, Sprintlink, MCINet, BBNNET. So, when I go to my provider's backbone, it has to hand me off to a backbone to which SI publishes. E.g. Sprintlink. Effectively, my Tier 1 provider becomes a Tier 2 provider. Moreover, asynchronous transfer problems develop, as my provider can jump to Sprintlink at a number of "peering" points. The consequence of this is that I go to SI via route A, but return from SI via an entirely different route B. That causes real problems. Interestingly enough, when my problems are worst through my T1 line, I can use a 28.8 dial-up modem and hit SI within a second. Totally different response. Why? Because, I think, I'm entering Sprintlink at 1 constant point, and returning back to me at that one constant point. No asynchronous transfer problem. Anyway, plans are already afoot to rectify the problem (I hope) by Friday. We'll do so my switching to a provider that doesn't purport to have its own alternate backbone, rather, it hooks up via DS3 (45Meg line) direct to Sprintlink. (I checked...of that 45Meg, the provider uses on average only 12 Meg, and I've not yet seen a peak that hit the 45 Meg limit). My hope is that this will solve the problem of trying to enter Sprintlink at multiple peering points. Time will tell. Gary Korn