[j-nsp] 40G QSFP problems on QFX5100 after 16.1R6

[Sebastian Wiesinger]

* Jared Mauch <jared at puck.nether.net> [2018-04-28 01:51]:
> I’ve seen issues on QFX-5200 depending on the optics and cabling type.  We’ve had to set
> FEC on the ports to none.  This may also be a problem with the QSFP/QSFP+ type optics.
> The threshold was in going from 15.x -> 17.x, so it’s possible it showed up in 16.x as well.

Hello,

apparently there is now a PR for this: PR1309613

The PR mentioned that the problem should be fixed in:
14.1X53-D47 15.1R7 16.1R7 17.1R3 17.2R3 17.3R2 17.3R3 17.4R2 18.1R1

So if you're hit by this give one these releases a try. We'll test as
soon as 17.4R2 is actually released.

Regards

Sebastian

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