we have a WS-C3524-XL-EN wiche is connected to a WS-C5500 over a GBIC SX. Ther is no trunking configured on this link. I checked the native vlan on the 3524 and 5500 bot show me the default VLAN1 as native vlan. Waht could be the cause of this cdp mismatch messages?
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet0/1 (0), with 066537734(SW-ALTB) 5/5 (1)
WS-C3524
SW-SCHD#sho int gigabitEthernet 0/1 switchport
Name: Gi0/1
Switchport: Enabled
Administrative mode: static access
Operational Mode: static access
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
Negotiation of Trunking: Disabled
Access Mode VLAN: 1 (default)
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: NONE
Pruning VLANs Enabled: NONE
SW-SCHD#
WS-C5500
> CAT 5500 : 1) "show trunk 5"
>
Enter password:
SW-ALTB (enable) sho trunk 5
* - indicates vtp domain mismatch
Port Mode Encapsulation Status Native vlan
-------- ----------- ------------- ------------ -----------
5/1 auto dot1q not-trunking 1
5/2 auto dot1q not-trunking 1
5/3 auto dot1q not-trunking 1
5/4 auto dot1q not-trunking 1
5/5 auto dot1q not-trunking 1
5/6 auto dot1q not-trunking 1
5/7 auto dot1q not-trunking 1
5/8 auto dot1q not-trunking 1
5/9 auto dot1q not-trunking 1
