On 2020-03-16 21:06, Chuck Anderson wrote: > Has anyone tried using QSFP+ to SFP+ adapters such as this one? What > software versions have you tried? > > https://www.fs.com/products/72587.html > > I'm testing these on QFX10002-36Q with 17.3R3-S7.2 and SFP+ 10G-LR modules. > The links come up and pass LLDP and IP traffic, but DOM doesn't work:
We have some equivalent adapters from Mellanox. On a QFX5120 (running Junos 192.R1-S3) where we use those adapters, I don't get any DOM either, but on Dell Z9100 switches (running DNOS 9.14(2.4)) I do get DOM. However, it might be that the Dell switches got some newer version of the adapters; I'm fairly certain the adapters in the Dells are ones we received in 2018, while I suspect the adapters in the Juniper are ones we got in the 2012-2014 timespan. I might be able to check and test sometime later this week, but no promises. -- Thomas Bellman, National Supercomputer Centre, Linköping Univ., Sweden "We don't understand the software, and sometimes we don't understand the hardware, but we can *see* the blinking lights!"
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