Is this a speed mismatch message?
Configuring vlans and I was receiving this message until I configured the speed and vlan to the specific interface...
%CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on FastEthernet0/7 (1), with miami FastEthernet0/7 (30).
int
here is the #sh vlan br output
% Invalid input detected at '^' marker.
miami#show vlan br
VLAN Name Status Ports
----
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24
Gig0/1, Gig0/2
10 SALES active Fa0/5
20 MANAGERS active Fa0/6
30 ENGINEERS active Fa0/7
40 SUPPORT active Fa0/8
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
here is the #show running-con
miami#show vlan br
VLAN Name Status Ports
----
1 default active Fa0/1, Fa0/2, Fa0/3, Fa0/4
Fa0/9, Fa0/10, Fa0/11, Fa0/12
Fa0/13, Fa0/14, Fa0/15, Fa0/16
Fa0/17, Fa0/18, Fa0/19, Fa0/20
Fa0/21, Fa0/22, Fa0/23, Fa0/24
Gig0/1, Gig0/2
10 SALES active Fa0/5
20 MANAGERS active Fa0/6
30 ENGINEERS active Fa0/7
40 SUPPORT active Fa0/8
1002 fddi-default active
1003 token-ring-default active
1004 fddinet-default active
1005 trnet-default active
miami#
miami#
miami#
miami#
miami#
miami#
miami#
miami#
miami#
miami#
miami#
miami#
miami#
miami#show run
miami#show running-config
Building configuration...
Current configuration : 2121 bytes
!
version 12.2
no service timestamps log datetime msec
no service timestamps debug datetime msec
no service password-encryption
!
hostname miami
!
!
!
!
!
spanning-tree mode pvst
spanning-tree extend system-id
!
interface FastEthernet0/1
shutdown
!
interface FastEthernet0/2
shutdown
!
interface FastEthernet0/3
shutdown
!
interface FastEthernet0/4
shutdown
!
interface FastEthernet0/5
switchport access vlan 10
switchport mode access
speed 100
!
interface FastEthernet0/6
switchport access vlan 20
switchport mode access
speed 100
!
interface FastEthernet0/7
switchport access vlan 30
switchport mode access
speed 100
!
interface FastEthernet0/8
switchport access vlan 40
switchport mode access
speed 100
!
interface FastEthernet0/9
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/10
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/11
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/12
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/13
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/14
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/15
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/16
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/17
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/18
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/19
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/20
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/21
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/22
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/23
switchport port-security maximum 5
shutdown
!
interface FastEthernet0/24
switchport port-security maximum 5
shutdown
!
interface GigabitEthernet0/1
!
interface GigabitEthernet0/2
!
interface Vlan1
no ip address
shutdown
!
!
!
!
line con 0
password love
login
!
line vty 0 4
login
line vty 5 15
login
!
!
!
end
