[175717] in North American Network Operators' Group
Re: Industry standard bandwidth guarantee?
daemon@ATHENA.MIT.EDU (Ben Sjoberg)
Wed Oct 29 23:42:07 2014
X-Original-To: nanog@nanog.org
In-Reply-To: <BAY172-W147EE834C0FDCC210E4A7AAE9C0@phx.gbl>
Date: Wed, 29 Oct 2014 19:04:33 -0500
From: Ben Sjoberg <bensjoberg@gmail.com>
To: keith tokash <ktokash@hotmail.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
That 3Mb difference is probably just packet overhead + congestion
control. Goodput on a single TCP flow is always less than link
bandwidth, regardless of the link.
On Wed, Oct 29, 2014 at 6:57 PM, keith tokash <ktokash@hotmail.com> wrote:
> I'm sorry I should have been more specific. I'm referring to the *percen=
tage* of a circuit's bandwidth. For example if you order a 20Mb site to si=
te circuit and iperf shows 17Mb. Well ... that's 15% off, which sounds hef=
ty, but I'm not sure what's realistic to expect.
>
> And beyond expectations, I'm wondering if there's a threshold that indust=
ry movers/shakers generally yell at their vendor for going below, and try t=
o get a refund or move the link to a new port/box.
>
>
>
>
>> To: ktokash@hotmail.com
>> Subject: Re: Industry standard bandwidth guarantee?
>> From: Valdis.Kletnieks@vt.edu
>> Date: Wed, 29 Oct 2014 19:02:53 -0400
>> CC: nanog@nanog.org
>>
>> On Wed, 29 Oct 2014 15:24:46 -0700, keith tokash said:
>>
>> > Is there an industry standard regarding how much bandwidth an inter-ca=
rrier circuit should guarantee?
>>
>> How are you going to come up with a standard that covers both the uplink=
from
>> Billy-Bob's Bait, Fish, Tackle, and Wifi, where a fractional gigabit may=
be
>> plenty, and the size pipes that got clogged in the recent Netflix networ=
k
>> neutrality kerfluffle?
>>
>> And where your PoPs are (and how many) matters as well - if you have a p=
eering
>> agreement with another carrier, and you exchange 35Gbits/sec of traffic,=
the
>> bandwidth at each peer point will depend on whether you peer at one loca=
tion,
>> or 5, or 7, or 15.....
>>
>
