I am trying to enable dot1q tunneling on a 3110X port-channel interface. We have 4 switches stacked in our Bladecenter. The configuration guide says that enabling dot1q tunneling on an etherchannel is valid but the cli disagrees. Has anybody experienced this issue before?
Cisco IOS Software, CBS31X0 Software (CBS31X0-UNIVERSAL-M), Version 12.2(55)SE5, RELEASE SOFTWARE (fc1)
switch 1 provision ws-cbs3110x-s-i
switch 2 provision ws-cbs3110x-s-i
switch 3 provision ws-cbs3110x-s-i
switch 4 provision ws-cbs3110x-s-i
vlan 4001
name TUNNEL_VLAN
!
!
interface Port-channel3
switchport access vlan 4001
switchport mode access
end
!
MAD_BC8_3110X(config)#inter port-c 3
MAD_BC8_3110X(config-if)#switchport mode dot1q-tunnel
Command rejected: Po3 doesn't support 802.1q tunneling.
MAD_BC8_3110X(config-if)#
MAD_BC8_3110X#show system mtu
System MTU size is 1500 bytes
System Jumbo MTU size is 9198 bytes
System Alternate MTU size is 1500 bytes
Routing MTU size is 1500 bytes
