Hello All,
I have following topology, Edge routers and 3750 switch Stack with Mamgt Vlan :-
Currenlty all the devices are runnign with L2 vlan on all coonected ports to ASAs and Routers with vlan Id 10. Switch has a vlan intetface vlan 20 with subnet 192.168.1.1/24 that is a kind of out of band, where as Vlan 10 is used for Producation data flow between Edge routers and FWs.
Current config on Edge routers:-
Router1:-
interface FastEthernet0/1
description Connect to Edge_SW Gi2/0/1
ip address 10.10.10.3 255.255.255.0
duplex auto
speed 100
ntp disable
standby 1 ip 10.10.10.1
standby 1 priority 110
standby 1 preempt
Router2:-
interface FastEthernet0/1
description Connect to Edge_SW Gi1/0/1
ip address 10.10.10.13 255.255.255.0
no ip redirects
duplex auto
speed auto
ntp disable
standby 1 ip 10.10.10.1
standby 1 priority 90
standby 1 preempt
Switch (3750 Stack):-
interface GigabitEthernet1/0/1
description Router1- FE0/1
switchport access vlan 10
switchport mode access
spanning-tree portfast
interface GigabitEthernet2/0/1
description Router2 - FE0/1
switchport access vlan 10
switchport mode access
spanning-tree portfast
Proposed Config :-
Switch:-
interface GigabitEthernet1/0/1
description Router1 - FE0/1
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk native vlan 80
switchport trunk allow vlan 254
no shut
interface GigabitEthernet2/0/1
description Router2 - FE0/1
switchport trunk encapsulation dot1q
switchport mode trunk
switchport trunk native vlan 80
switchport trunk allow vlan 254
no shut
Router01:-
interface FastEthernet0/1
description Connect to Edge_SW Gi1/0/1
ip address 10.10.10.13 255.255.255.0
no ip redirects
duplex auto
speed auto
ntp disable
standby 1 ip 10.10.10.1
standby 1 priority 90
standby 1 preempt
!
!
interface FastEthernet0/0.254
description **Mgmt Link**
encapsulation dot1Q 254
ip address 192.168.1.50 255.255.255.0
no ip redirects
no sh
Router02:-
interface FastEthernet0/1
description Connect to Edge_SW Gi2/0/1
ip address 10.10.10.3 255.255.255.0
duplex auto
speed 100
ntp disable
standby 1 ip 10.10.10.1
standby 1 priority 110
standby 1 preempt
!
!
interface FastEthernet0/0.254
description **Mgmt Link**
encapsulation dot1Q 254
ip address 192.168.1.51 255.255.255.0
no ip redirects
no sh
I am confused or the switch port config should be like
switchport trunk native vlan 254
switchport trunk allow vlan 80,254
After going through following link:-
http://rednectar.net/2012/03/11/the-access-vlan-is-dead-long-live-the-native-vlan/
Thansk
Jagdev
