I recently put in a 2960x stack with an uplink on port 47 to an HP Procurve 2910 POE switch.
If I plug into a port on the Cisco stack, I can ping out and access the network/internet/etc.
switchport voice vlan 11
spanning-tree bpduguard enable
Port 47 on Cisco uplink
switchport trunk allowed vlan 1
switchport mode trunk
If I console into the 2960 and ping the HP it uplinks to port 23 on, I cannot ping it. Why?
HP port 23 configuration:
trunk 23 trunk1 trunk
untagged vlan 1
tagged vlan 11
Obviously something on my trunk is an issue?