We have 2 core 6509 switches core1 and core2 that connected to each other over a port-channel1 made up of 6 ports (5/1-5/6). All Vlans are allowed on this etherchannel.
We also have a HP Interconnect switch connected to core1 and core2 on port 8/1 core1 and port 8/1 core2. For some reason all the network traffic is going from core1 to HP switch first and then go over to core2 via port 8/1. That how our traffic is going across the cores right now. We would like to have our network traffic going across the cores through the etherchannel.
vtp domain FP_VTP
vtp mode transparent
switchport trunk encap dot1q
switchport trunk native vlan 999
switchport trunk allowed vlan 1,100-107,999
switchport mode trunk
no ip address
When we do show spanning-tree root, Vlan0001 is going to root port gi8/1 which connected to HP switch.
What would be the best way to configure the 6509s to use etherchannel instead of gi8/1 between core1 and core2?