Standard deviation is now your friend. Learned to alert on outside of SD FEC and CRCs. Although the second should already be alerting. 

On Thu, Apr 18, 2024 at 8:15 AM Mark Tinka <mark@tinka.africa> wrote:
On 4/17/24 23: 24, Aaron Gould wrote: > Well JTAC just said that it seems ok, and that 400g is going to show > 4x more than 100g "This is due to having to synchronize much more to > support higher data. " > We've seen the same between 
On 4/17/24 23:24, Aaron Gould wrote:

> Well JTAC just said that it seems ok, and that 400g is going to show 
> 4x more than 100g "This is due to having to synchronize much more to 
> support higher data."
>

We've seen the same between Juniper and Arista boxes in the same rack 
running at 100G, despite cleaning fibres, swapping optics, moving ports, 
moving line cards, e.t.c. TAC said it's a non-issue, and to be expected, 
and shared the same KB's.

It's a bit disconcerting when you plot the data on your NMS, but it's 
not material.

Mark.