Hi,
I have configured the port channel for two ports in Cisco 3750 switch. While connecting the cable in that port i am getting the native VLAN mismatching error. Below i have attached the configuration and error details. Please help me on this.
Error:
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet1/0/33 (5), with Core1 GigabitEthernet1/0/17 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet1/0/33 (5), with Core1 GigabitEthernet1/0/17 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet1/0/33 (5), with Core1 GigabitEthernet1/0/17 (1).
%LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet1/0/34, changed state to up
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet1/0/33 (5), with Core1 GigabitEthernet1/0/34 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet1/0/33 (5), with Core1 GigabitEthernet1/0/34 (1).
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet1/0/33 (5), with Core1 GigabitEthernet1/0/34 (1).
Configuration:
interface Port-channel3
description *****Connected to Dell Blade Server Switch****
switchport trunk encapsulation dot1q
switchport mode trunk
interface GigabitEthernet1/0/17
description *****Connected to Blade*****
switchport trunk encapsulation dot1q
switchport mode trunk
speed 1000
duplex full
channel-protocol lacp
channel-group 3 mode active
!
interface GigabitEthernet1/0/33
description *****Spare*****
switchport access vlan 5
!
interface GigabitEthernet1/0/34
description *****Connected to Blade*****
switchport trunk encapsulation dot1q
switchport mode trunk
speed 1000
duplex full
channel-protocol lacp
channel-group 3 mode active
!
Thanks,
Karthik
