Hi Guys,
I'm working on my switch called LW-MNSV-SW2
I have configured my port 1/0/1 to be my management port for SSH remote access.
This is on VLAN 1 as VLAN 1 is my management VLAN.
This is then patched into my Uplink Switch which is managed by a 3rd party - lets call this SW1.
VLAN 50 is for Data and VLAN 42 is for VoIP
The rest of my interfaces are as follows
interface GigabitEthernet1/0/1
description MGNT
!
interface GigabitEthernet1/0/2
switchport access vlan 50
switchport mode access
switchport voice vlan 42
spanning-tree portfast
I have a trunk port setup on 2/0/48 (This is a stack switch hence the 2/0)
This trunk port is in a LAG with another Trunk port on 1/0/48
This LAG Trunk is patched into the same 3rd party switch - SW1. This is acting as my uplink for my switch.
!
interface GigabitEthernet2/0/48
description UPLK 1-D
switchport access vlan 50
switchport trunk native vlan 50
switchport trunk allowed vlan 42,50
switchport mode trunk
channel-group 1 mode active
For some reason i keep getting this error:
Jan 17 20:24:11.993: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet2/0/48 (50), with LW-MNSV-SW2.harlowbros.local GigabitEthernet1/0/1 (1).
Spanning-tree kept shuttingdown the MGNT port 1/0/1 due to the above error.
I have since turned off spanning-tree on that interface for VLAN 1, which now lets me use the port and i can remote on using PuTTy SSH no problem.
My issue is that the errors continue to pop up. In writing this, 4 more have appeared.
How do I resolve this issue? Could someone shed some light for me as to what this error is and how to fix it?
