It's not normal, no.

On Wed, Aug 19, 2020 at 10:02 AM Nicholas Warren <nwarren@barryelectric.com> wrote:
We've got a 100g qsfp in an mx204 that has 1207 bit errors and 29666 errored blocks after 24 hours of just being linked up...
I would assume this is not normal behavior, but I haven't used 100g before. Do others see high error rates on their 100g optics?