It's a simple configuration I've done dozens of times: I create a VLAN, give it an IP address, then configure the laptop with an IP in that range and assign the SFP port to that VLAN and plug the laptop in. The port shows up-up and the VLAN then comes up but I can't ping the laptop from the switch or vice versa, and nothing ever shows up in the mac address table either.
It's not the laptop because if I use the management port (Gig 0/0) instead and give it an IP address and configure Gig0/0 as the tftp source-interface, it works.
The GLC-T is supposed to be compatible with the switch (a 9500 48YC and a 9500 40X I believe). I am pretty sure I have tried different SFP's of the same type as well with the same result
I am new to 9500's and IOS XE 16.11, is there something I've missed / overlooked?
status was up/up and it did not appear to have an issue recognizing the SPF, I'll have to get the output from show inventory later