Hi all,
I hope you're well.
I'm currently investigating some connectivity issues users are reporting on AVD displaying 'Paused Connection'. At this site, we're running FortiSwitch 448E-FPOE's and in the system events I am seeing many 'port has come up' and 'port has come down' logs.
I've reviewed the spanning-tree instance and confirmed that it is stable, root bridge is correct, no recent TCN's and no high usage of system resources (CPU/Memory) noted. There are no FCS errors or any other stats on the physical ports that would suggest faulty cables.
All ports connect to Cisco IP phones and from the logs it looks like the physical port flaps first which then triggered STP port status changes. I'm going to test bypassing the phone and connecting the PC directly to our FortiSwitch to rule out the phone causing the issue but wanted to know if there are any other troubleshooting steps I can take to identify the route cause.
Many thanks,
Dan.
