Dear,
we have upgrade our EX4550-VC with ex4550-em-2qsfp-Modules.
And also update Junos to the last recommened Version (15.1R7-S6).
If we plug 40G-QSFP+ Modules into the Devices, they will successfully detected and availible as et-0/1/0 and et-0/1/1.
If we not plugged a cable into the modules, nothing happens - no link.
But, if we remove the QSFP+, plugged in the Cable into the QSFP+ and then insert the QSPF+ with cable plugged in, then the link comes up. I have never seen such a behavior before ...
We have tested different EX4550, different ex4550-em-2qsfp-Modules and different QSFP+. Same reproducible Problem.
In our MX204 the QSFP+ work fine - so we think, that we dont have a hardware-problem.
Does any of you have an idea?
And i have seen, that since 05.06.2020 a new Junos is out (15.1R7-S7). Where can i find, if there is a possible bug in the software and fixed in this SR?
Thanks
tcz