On Thursday, May 21, 2015, Mark Tinka <mark.ti...@seacom.mu> wrote: > > > On 21/May/15 18:59, Dave Taht wrote: > > > Two things I am curious about are 1) What is the measured benefit of > > moving a netflix server into your local ISP network > > > > and 2) does anyone measure "cross town latency". If we lived in a > > world where skype/voip/etc transited the local town only, > > what sort of latencies would be see within an ISP and within a > > cross-connect from, say a gfiber to a comcast? > > On average, 1ms for every 100km. > > We've seen this in practice - consistently - for any fibre deployed > within the same town/city. > > Unless someone does something very wrong with the fibre, suffers > terrible hardware issues, deliberately implements debilitating bandwidth > management or does a piss-poor job of network design, it would be > reasonably hard to go above +/- 1ms for traffic that originates and > terminates within the same town, let alone 6 miles of speaking parties. > > Mark. >
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