Post #4015867
2026-07-22 15:41 UTC
@azonenberg@ioc.exchange so @Oskar456@mastodon.social is trying to debug weird behavior with a device's SFP+ ports that is suspected to be misconfig between operating (at 1G) as SGMII or 1000base-X (or some bits in the negotiation pages on either) - do you have any suggestions/ideas how to (cheaply) debug that?
Identifying a signal as SGMII vs. 1000base-X would be good, getting the AN pages dumped better…
Replies (1)
-
@azonenberg@ioc.exchange 2026-07-22 15:45
@equinox@chaos.social @Oskar456@mastodon.social I have devices that use 1000baseX without AN and are incompatible with 1000baseX using AN. Cheapest option is probably an FPGA devkit with a SFP cage on it. If I can get a raw PHY layer symbol capture I can decode in ngscopeclient.