Proving Gig Speed

Eddie Parra eparra at
Mon Jul 16 18:27:02 UTC 2018

+1 to Jared.  I’ve seen people not account for this when sizing CoS as well on Juniper.


> On Jul 16, 2018, at 11:08 AM, Jared Mauch <jared at> wrote:
>> On Mon, Jul 16, 2018 at 01:02:28PM -0500, Dan White wrote:
>> We've found that running windows in safe mode produces better results with
>> Ookla. And MACs usually do better as well. We've gotten >900mb/s with those
>> two approaches.
>    I've seen engineers even forget to account for differing behaviors
> of vendors, eg: Juniper doesn't display the layer-2 header counters
>    This means a 920Mb/s link may actually be 100% once you add back in
> ethernet framing.  Remind folks that they are seeing the TCP/UDP throughput
> and there is ethernet + IP headers involved.
>    - Jared

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