Looking to see if anyone else has run into this issue.
I am looking at an issue on a 4500X where VLAN 1 is seen yet not configured for the interfaces I am using. Also, when looking at the upstream switch, 6509, it shows a similar set-up with the interface connected to Te2/1/14 shows vlan 1 in the vlan database too, even though it is configured as a trunk and clearly seen as such.
mcuc11-ds-01#sh vlan
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Te1/1/3, Te1/1/4, Te1/1/5, Te1/1/6, Te1/1/7, Te1/1/8, Te1/1/9, Te1/1/10, Te1/1/11, Te1/1/12, Te1/1/13, Te2/1/3, Te2/1/4, Te2/1/5, Te2/1/6, Te2/1/7, Te2/1/8
Te2/1/9, Te2/1/10, Te2/1/11, Te2/1/12, Te2/1/13, Te2/1/14
11 Fusion_Net active
14 UCC active
mcuc11-ds-01#sh int trunk
Port Mode Encapsulation Status Native vlan
Po1 on 802.1q trunking 1
Po2 on 802.1q trunking 1
Po10 on 802.1q trunking 1
Po14 on 802.1q trunking 1
Po20 on 802.1q trunking 1
Port Vlans allowed on trunk
Po1 14
Po2 14
Po10 1-4094
Po14 11,14
Po20 1-4094
Port Vlans allowed and active in management domain
Po1 14
Po2 14
Po10 1,11,14
Po14 11,14
Po20 1,11,14
Port Vlans in spanning tree forwarding state and not pruned
Po1 14
Po2 14
Po10 none
Po14 11,14
Po20 none
Interface configuration
mcuc11-ds-01#sh run int t1/1/14
Building configuration...
Current configuration : 160 bytes
!
interface TenGigabitEthernet1/1/14
description Uplink to Core
switchport trunk allowed vlan 11,14
switchport mode trunk
channel-group 14 mode active
end
mcuc11-ds-01#sh run int t2/1/14
Building configuration...
Current configuration : 140 bytes
!
interface TenGigabitEthernet2/1/14
description Uplink to Core
switchport trunk allowed vlan 11,14
switchport mode trunk
channel-group 14 mode active
end
mcuc11-ds-01#sh run int po14
Building configuration...
Current configuration : 132 bytes
!
interface Port-channel14
description Uplink to core
switchport
switchport trunk allowed vlan 11,14
switchport mode trunk
end
