Hi Andrew,could you please check the output "show spanning-tree details" , this output will give you an idea if there are topology changes and also the interface that receives those changes.share the output with us if possible as well.thanks,Ahmad.
Hi Christian,well, In order to power ports on a switch module plugged into a router, it is important to order the router with PoE power supply, so , you need to replace your power supply with PWR-3900-POE.this is documented in the following link:http...
Hi Chris, In order to power PoE ports on a switch module integrated into a router, you must order the router with a PoE power supply and PoE is autonegotiate , the Power supply PID is (PWR-3900-POE) to display the PoE statistics maintained on the Cis...
Hi Vishes,could you please share "show interface" from both sides ? show ip arp 195.100.121.2 from the router side?if possible please enable debug arp and try to ping and share the debug output as well.thanks,Ahmad.
