Пытаемся настроить QinQ между двумя cisco 3750. Перерыли кучу статей..
соединены медным патчкордом
вот конфиг
catalyst 1
Building configuration...
Current configuration : 16577 bytes
!
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
service password-encryption
service unsupported-transceiver
!
hostname c3750
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
switch 1 provision ws-c3750g-12s
system mtu routing 1500
vtp domain xxi
vtp mode transparent
ip routing
ip dhcp relay information trust-all
!
!
ip multicast-routing distributed
!
!
no errdisable detect cause gbic-invalid
no errdisable detect cause sfp-config-mismatch
errdisable recovery cause sfp-config-mismatch
!
spanning-tree mode pvst
spanning-tree extend system-id
no spanning-tree vlan 1-4094
!
vlan internal allocation policy ascending
!
vlan 2-19,22-24,888
!
!
!
interface GigabitEthernet1/0/7
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 2-19,22-24
switchport mode trunk
switchport nonegotiate
no cdp enable
no cdp tlv server-location
no cdp tlv app
!
interface GigabitEthernet1/0/8
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 4,23
switchport mode trunk
switchport nonegotiate
no cdp enable
no cdp tlv server-location
no cdp tlv app
!
interface GigabitEthernet1/0/10
description QinQ
switchport access vlan 888
switchport mode dot1q-tunnel
switchport nonegotiate
no cdp enable
no cdp tlv server-location
no cdp tlv app
!
interface Vlan888
ip address 10.21.80.1 255.255.255.0
---skip---
catalyst 2
version 12.2
no service pad
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Switch
!
boot-start-marker
boot-end-marker
!
!
!
no aaa new-model
switch 1 provision ws-c3750g-24t
system mtu routing 1500
ip routing
!
spanning-tree mode pvst
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
no spanning-tree vlan 1-4094
!
vlan internal allocation policy ascending
vlan dot1q tag native
!
!
interface GigabitEthernet1/0/3
switchport access vlan 23
switchport mode access
!
interface GigabitEthernet1/0/23
description QinQ
switchport access vlan 888
switchport mode dot1q-tunnel
switchport nonegotiate
speed 1000
no mdix auto
no cdp enable
!
interface GigabitEthernet1/0/24
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 4,23
switchport mode trunk
no cdp enable
!
interface Vlan1
no ip address
!
interface Vlan4
no ip address
!
interface Vlan23
ip address 192.168.17.8 255.255.255.0
!
interface Vlan888
ip address 10.21.80.2 255.255.255.0
---skip---
на обеих цисках MTU
sh sys mtu
System MTU size is 1546 bytes
System Jumbo MTU size is 9000 bytes
System Alternate MTU size is 1546 bytes
Routing MTU size is 1500 bytes
в транспортном влане(888) связь есть с первой циски 10.21.80.2 пингуется, а остальные vlan 4,23 не проходят.
что может быть не так ?