I have one core switch 4507, Server (10.28.2.172) connected to port gi4/10.
I have enabled trunk on port gi4/10, enabled encapsulation dot1q and allowed vlan's 55,1800
Please find the below running config for interface.
Core#sh run int gi4/10
Current configuration : 166 bytes
description RG Test Desktop
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 55,1800
switchport mode trunk
The problem is after don all the above config, the server is unreachable and the port showing in Native vlan 1, which is admin down.
When I removed trunk and allowed vlans, then the server is reachable.
Please find the below trunk status:
Core#sh int trunk
Port Mode Encapsulation Status Native vlan
Gi4/10 on 802.1q trunking 1
Gi4/27 on 802.1q trunking 50
Gi4/48 on 802.1q trunking 50
Gi5/18 on 802.1q trunking 1
Gi5/19 on 802.1q trunking 1
Gi5/21 on 802.1q trunking 1
Gi5/47 on 802.1q trunking 1
Gi5/48 on 802.1q trunking 1
Po1 on 802.1q trunking 50
Port Vlans allowed on trunk
Experts, can any one please tell me where I am wrong and what needs to be done to work it.
However multiple vlans (exmaple vlan 55,1800 should be allowed on that port)