thanks for answering my question.
the cable is fine, already to check on the other device, the topology is port 1/20, 1/21, 1/23 connect to other switch non icx 1/2,1/3,1/5 via copper sfp. and on the oppenent switch the port is normal, no updown like on ICX log.
what does mean ?
thank for your help
The message seen is layer 1 related, so this would generally be optic, media, patch-panel, etc.
Is this a ruckus-supported optic?
show media validation
show media eth x/y/z
Have you used these optics elsewhere on ICX switches without issue?