我试图通过 cisco 交换机在两个路由器（cisco 和 Microik）之间建立一个 Q-IN-Q 天线

在微商

VLAN ID = 10 IN interface ether1
VLAN ID = 20 in interface Vlan10 ip address in interface van 20 [10.10.10.2/30]

Microtik[ether1] ===>[Ether2]CISCO-SW-nexus[ether1]<<====[Ether1]cisco-router

在思科交换机中

ether2 [与 microtik] 是模式中继 ether1 [与路由器 cisco] 是模式 Dot1q 隧道

switchport mode dot1q-tunnel
switchport access vlan 10
spanning-tree bpdufilter enable

在路由器-cisco

interface FastEthernet0/0.20
 encapsulation dot1Q 20
 ip address 10.10.10.1 255.255.255.0
 no snmp trap link-status
end

enter preformatted text here


switch# sh spanning-tree vlan 10

VLAN0010
  Spanning tree enabled protocol rstp
  Root ID    Priority    32778
             Address     5000.0001.0007
             This bridge is the root
             Hello Time  2  sec  Max Age 20 sec  Forward Delay 15 sec

  Bridge ID  Priority    32778  (priority 32768 sys-id-ext 10)
             Address     5000.0001.0007
             Hello Time  2  sec  Max Age 20 sec  Forward Delay 15 sec

Interface        Role Sts Cost      Prio.Nbr Type
---------------- ---- --- --------- -------- --------------------------------
Eth1/1           Desg FWD 4         128.1    P2p
Eth1/2           Desg FWD 4         128.2    P2p

问题是没有在路由器 cisco 和 mikrotik 之间使用 subvlan 20 ping PTP