I have cisco 3650-48fq-s with 4 TenGigabitEthernet sfp ports trying to connect to at&t 1gig ase circuit but link is not coming up.
Here is the config on the port:
Interface TenGigabitEthernet 1/1/1
switchport trunk allowed vlan 110
switchport mode trunk
speed nonegotiate
When I do shut and no shut on 1/1/1 then the logs says "LINK-5-changed interface adminitratively changed to down" and "LINK-3-UPDOWN interface changed to down"
The Cisco IOS XE is 3.06.06E
Then I tried on cisco 2960-XR with 1gig sfp port on it and it worked.
I have 4500X-16 cisco L3 switch at another location with TenGig sfp port on it with same above config and works there.
