nanog mailing list archives
Re: Industry standard bandwidth guarantee?
From: Dorian Kim <dorian () blackrose org>
Date: Thu, 30 Oct 2014 14:21:00 -0400
On Oct 30, 2014, at 8:23 AM, Jimmy Hess <mysidia () gmail com> wrote: On Wed, Oct 29, 2014 at 7:04 PM, Ben Sjoberg <bensjoberg () gmail com> wrote:That 3Mb difference is probably just packet overhead + congestionYes... however, that's actually an industry standard of implying higher performance than reality, because end users don't care about the datagram overhead which their applications do not see they just want X megabits of real-world performance, and this industry would perhaps be better off if we called a link that can deliver at best 17 Megabits of Goodput reliably a "15 Megabit goodput +5 service" instead of calling it a "20 Megabit service" Or at least appended a disclaimer *"Real-world best case download performance: approximately 1.8 Megabytes per second" Subtracting overhead and quoting that instead of raw link speeds. But that's not the industry standard. I believe the industry standard is to provide the numerically highest performance number as is possible through best-case theoretical testing; let the end user experience disappointment and explain the misunderstanding later. End users also more concerned about their individual download rate on actual file transfers and not the total averaged aggregate throughput of the network of 10 users or 10 streams downloading data simultaneously, or characteristics transport protocols are concerned about such as fairness.
Not it’s not. All the link speeds are products of standards, be it SDH/SONET, PDH, or various flavors of ethernet. They are objective numbers. What you are advocating, given that much of the overhead is per packet/frame overhead and will vary based on the application and packet size distribution, will create more confusion than what we have today. -dorian
Current thread:
- Industry standard bandwidth guarantee? keith tokash (Oct 29)
- Re: Industry standard bandwidth guarantee? Valdis . Kletnieks (Oct 29)
- RE: Industry standard bandwidth guarantee? keith tokash (Oct 29)
- Re: Industry standard bandwidth guarantee? Rafael Possamai (Oct 29)
- Re: Industry standard bandwidth guarantee? Ben Sjoberg (Oct 29)
- Re: Industry standard bandwidth guarantee? Matthew Walster (Oct 29)
- Re: Industry standard bandwidth guarantee? Jimmy Hess (Oct 30)
- Re: Industry standard bandwidth guarantee? Dorian Kim (Oct 30)
- Re: Industry standard bandwidth guarantee? Rafael Possamai (Oct 30)
- RE: Industry standard bandwidth guarantee? keith tokash (Oct 30)
- Re: Industry standard bandwidth guarantee? Mark Andrews (Oct 30)
- Re: Industry standard bandwidth guarantee? Joe Greco (Oct 30)
- Re: Industry standard bandwidth guarantee? Rafael Possamai (Oct 30)
- Re: Industry standard bandwidth guarantee? Joe Greco (Oct 31)
- RE: Industry standard bandwidth guarantee? David Hofstee (Oct 31)
- RE: Industry standard bandwidth guarantee? Bacon, Ricky (RJ) (Oct 31)
- RE: Industry standard bandwidth guarantee? Frank Bulk (Oct 31)
- RE: Industry standard bandwidth guarantee? keith tokash (Oct 29)
- Re: Industry standard bandwidth guarantee? Valdis . Kletnieks (Oct 29)
- Re: Industry standard bandwidth guarantee? Jeff Sorrels (Oct 31)