Re: constant FEC errors juniper mpc10e 400g

[Thomas Scott <tscott () coreweave com>]

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.