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RE: Microsoft's Black Tuesday bandwidth impact?
I actually speak for an ISP, not an enterprise at this time -- my apologies for not making it more clear. When I said "our network" I was really referring to our residential and business broadband subscribers. Among our business subscribers, only a handful actually have SUS in place. Frank -----Original Message----- From: Bill Nash [mailto:billn@xxxxxxxxx] Sent: Wednesday, January 09, 2008 3:36 PM To: Frank Bulk Cc: nanog@xxxxxxxxx Subject: Re: Microsoft's Black Tuesday bandwidth impact? On Wed, 9 Jan 2008, Frank Bulk wrote: > > Every month I look at my upstream bandwidth graphs and I see no blip in the > hours before 3 am on Microsoft's Black Tuesday. I would think that with the > thousands of PCs out on our network downloading updates around that time > that I would see *something*. I know every Black Tuesday I see my three > PC's blinking a logon screen. > > Are MSFT's monthly updates really a non-event in regards to internet > bandwidth? > Users are too far from the firehose to feel the more interesting effects. That said, it's hit or miss, from month to month. If you have peering to a CDN network (llnw, akam, etc), you'll certainly see Patch Day roll through, since you're sitting on the aggregation of a large flow of data. As an end user, especially in an enterprise with admin's that are worth anything, you're not talking about a massive amount of data, in many cases. Service packs, sure, those are generally a bit bigger, but hotfixes and the like, usually pretty small. I don't even notice patches on my home connection, since they're a drop in the bucket compared to all the other content rolling around. Youtube and similar content flows are more noticeable. I think the only enterprise users who would notice a large influx of data are the ones who don't run caches. - billn