Is this a speed mismatch message?

boxerboy1168boxerboy1168 ■■■□□□□□□□Posts: 394Member ■■■□□□□□□□
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
Currently enrolling into WGU's IT - Security Program. Working on LPIC (1,2,3) and CCNA (and S) as long term goals and preparing for the Security+ and A+ as short term goals.

Comments

  • clarsonclarson ■■■■□□□□□□ Posts: 897Member ■■■■□□□□□□
    no

    that is a native vlan mismatch error message.

    it is telling you that FastEthernet0/7 (1) port 7 is using vlan 1 as it's native vlan
    and that miami FastEthernet0/7 (30) is using vlan 30 as it's native vlan.
  • boxerboy1168boxerboy1168 ■■■□□□□□□□ Posts: 394Member ■■■□□□□□□□
    ohhhhhh so it was sending that error because the other vlan wasn't configured yet?

    should wait to configure the vlans and interfaces before

    #interface range fastethernet % no shutdown??
    Currently enrolling into WGU's IT - Security Program. Working on LPIC (1,2,3) and CCNA (and S) as long term goals and preparing for the Security+ and A+ as short term goals.
  • Legacy UserLegacy User ■□□□□□□□□□ Posts: 0Unregistered / Not Logged In ■□□□□□□□□□
    Try the command show interface trunk this command shows the interfaces that are trunking. You can also see what is on the native vlan and what is trunking.
  • d4nz1gd4nz1g Posts: 464Member
    this also happens when you connect a trunk port to an access port placed in a given vlan
  • HondabuffHondabuff ■■■□□□□□□□ Posts: 667Member ■■■□□□□□□□
    What is port Fa 0/7 plugging into? I would assume another switch given that output.
    “The problem with quotes on the Internet is that you can’t always be sure of their authenticity.” ~Abraham Lincoln
  • indra26indra26 ■□□□□□□□□□ Posts: 10Member ■□□□□□□□□□
    This happen when another connected switch uses different native vlan [mismatched]
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