[j-nsp] MX304 Port Layout

[Andrey Kostin]

Hi Jeff,

Thank you very mush for sharing this information. Do you know in what 
publicly available release it's going to be fixed? Knowing PR number 
would be the best but I guess it may be internal-only.

Kind regards,
Andrey

Litterick, Jeff  (BIT) via juniper-nsp писал(а) 2023-06-08 18:03:
> No, that is not quite right.  We have 2 chassis of MX304 in Production
> today and 1 spare all with Redundant REs   You do not need all the
> ports filled in a port group.   I know since we mixed in some 40G and
> 40G is ONLY supported on the bottom row of ports so we have a mix and
> had to break stuff out leaving empty ports because of that limitation,
> and it is running just fine.    But you do have to be careful which
> type of optics get plugged into which ports.  IE Port 0/2 vs Port 1/3
> in a grouping if you are not using 100G optics.
> 
> The big issue we ran into is if you have redundant REs then there is a
> super bad bug that after 6 hours (1 of our 3 would lock up after
> reboot quickly and the other 2 would take a very long time) to 8 days
> will lock the entire chassis up solid where we had to pull the REs
> physical out to reboot them.     It is fixed now, but they had to
> manually poke new firmware into the ASICs on each RE when they were in
> a half-powered state,  Was a very complex procedure with tech support
> and the MX304 engineering team.  It took about 3 hours to do all 3
> MX304s  one RE at a time.   We have not seen an update with this
> built-in yet.  (We just did this back at the end of April)
> 
>