NATIVE VLAN MISMATCH e cat4948

[flynets]

Ciao a tutti,
innanzi tutto complimenti per questo forum che concretamente costituisce un riferimento nel mondo CISCO.
Confido nel vostro aiuto per chiarire la natura del seguente messaggio :

11w0d: %CDP-4-NATIVE_VLAN_MISMATCH: Native VLAN mismatch discovered on GigabitEthernet1/33 (7), with Cat2 GigabitEthernet1/21 (8)

Aggiungo che trattasi di due Cisco Catalyst 4948 collegati tra loro tramite Trunking dot1q ridondato. Il Catalyst "Cat1" fa da server mentre "Cat2" è il client;
posso confermare che il database Vlan funziona correttamente ed è allineato nei due apparati e che infine l'assegnazione delle interfacce nei due Catalyst è speculare... di seguito lo sh Vlan e la configurazione di "Cat1".
Vi ringrazio anticipatamente.

VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Gi1/25, Gi1/26, Gi1/45, Gi1/46
Gi1/47, Gi1/48
2 dmz active Gi1/1, Gi1/2, Gi1/3, Gi1/4
Gi1/5, Gi1/6
3 db active Gi1/7, Gi1/8, Gi1/9, Gi1/10
Gi1/11, Gi1/12, Gi1/13, Gi1/14
4 routint active Gi1/15, Gi1/16
5 internet active Gi1/17, Gi1/18, Gi1/19, Gi1/20
6 man active Gi1/27, Gi1/28, Gi1/29, Gi1/30
Gi1/31, Gi1/32
7 interna active Gi1/33, Gi1/34, Gi1/35, Gi1/36
Gi1/37, Gi1/38, Gi1/39, Gi1/40
Gi1/41, Gi1/42
8 RetePubblica1 active Gi1/21, Gi1/22, Gi1/23, Gi1/24
9 RetePubblica2 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup

version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
service compress-config
!
hostname Cat1
!
boot-start-marker
boot-end-marker
!
enable secret 5 XXXXXXXXXXXXXXXXXXXXXxxx.
!
no aaa new-model
ip subnet-zero
no ip domain-lookup
!
!
no file verify auto
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
power redundancy-mode redundant
!
!
!
vlan internal allocation policy ascending
!
interface GigabitEthernet1/1
switchport access vlan 2
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/2
switchport access vlan 2
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/3
switchport access vlan 2
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/4
switchport access vlan 2
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/5
switchport access vlan 2
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/6
switchport access vlan 2
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/7
switchport access vlan 3
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/8
switchport access vlan 3
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/9
switchport access vlan 3
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/10
switchport access vlan 3
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/11
switchport access vlan 3
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/12
switchport access vlan 3
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/13
switchport access vlan 3
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/14
switchport access vlan 3
switchport mode access
spanning-tree portfast
!
interface GigabitEthernet1/15
switchport access vlan 4
switchport mode access
!
interface GigabitEthernet1/16
switchport access vlan 4
switchport mode access
!
interface GigabitEthernet1/17
switchport access vlan 5
switchport mode access
!
interface GigabitEthernet1/18
switchport access vlan 5
switchport mode access
!
interface GigabitEthernet1/19
switchport access vlan 5
switchport mode access
!
interface GigabitEthernet1/20
switchport access vlan 5
switchport mode access
!
interface GigabitEthernet1/21
switchport access vlan 8
switchport mode access
!
interface GigabitEthernet1/22
switchport access vlan 8
switchport mode access
!
interface GigabitEthernet1/23
switchport access vlan 8
switchport mode access
!
interface GigabitEthernet1/24
switchport access vlan 8
switchport mode access
!
interface GigabitEthernet1/25
!
interface GigabitEthernet1/26
!
interface GigabitEthernet1/27
switchport access vlan 6
switchport mode access
!
interface GigabitEthernet1/28
switchport access vlan 6
switchport mode access
!
interface GigabitEthernet1/29
switchport access vlan 6
switchport mode access
!
interface GigabitEthernet1/30
switchport access vlan 6
switchport mode access
!
interface GigabitEthernet1/31
switchport access vlan 6
switchport mode access
!
interface GigabitEthernet1/32
switchport access vlan 6
switchport mode access
!
interface GigabitEthernet1/33
switchport access vlan 7
switchport mode access
!
interface GigabitEthernet1/34
switchport access vlan 7
switchport mode access
!
interface GigabitEthernet1/35
switchport access vlan 7
switchport mode access
!
interface GigabitEthernet1/36
switchport access vlan 7
switchport mode access
!
interface GigabitEthernet1/37
switchport access vlan 7
switchport mode access
!
interface GigabitEthernet1/38
switchport access vlan 7
switchport mode access
!
interface GigabitEthernet1/39
switchport access vlan 7
switchport mode access
!
interface GigabitEthernet1/40
switchport access vlan 7
switchport mode access
!
interface GigabitEthernet1/41
switchport access vlan 7
switchport mode access
!
interface GigabitEthernet1/42
switchport access vlan 7
switchport mode access
!
interface GigabitEthernet1/43
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/44
switchport trunk encapsulation dot1q
switchport mode trunk
!
interface GigabitEthernet1/45
!
interface GigabitEthernet1/46
!
interface GigabitEthernet1/47
!
interface GigabitEthernet1/48
!
interface Vlan1
ip address 192.168.X.X 255.255.255.0
!
interface Vlan4
ip address 192.168.Y.Y 255.255.255.0
!
interface Vlan7
ip address 192.168.Z.Z 255.255.255.0
!
ip route 0.0.0.0 0.0.0.0 192.168.H.H
ip http server
!
!
!
!
!
line con 0
exec-timeout 0 0
stopbits 1
line vty 0 4
exec-timeout 0 0
password XXXXXXX
login
line vty 5 15
password XXXXXX
login
!
!
end

[hashashin]

ciao,

allora questo errore ti esce fuori perchè hai collegato tra loro due porte che nn stanno sulla stessa vlan.
secondo il messaggio d'errore hai collegato tra loro la porta gb 1/33 del cat1 alla 1/21 del cat2.
sulla gb 1/33 cat1 c'è configurata la vlan 7 mentre sulla 1/21 cat2 c'è configurata la vlan 8 (i numeri tra parentesi subito dopo il nome delle interfacce).
riguardati un poco i cablaggi, oppure metti un bel trunk!!!


ciaoooooooooo

[flynets]

Grazie 1000, tutto risolto.... era un problema di cablaggio.
MI TI CO!