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automatically tagged with the tag of VLAN 1000 as the outer VLAN tag, and packets of VLAN
201 through VLAN 300 from Ethernet1/2 are automatically tagged with the tag of VLAN 2000
as the outer VLAN tag on SwitchA.
The configuration on Switch B is similar to that on Switch A, the configuration is as follows:
switch(config)#vlan 1000;2000
switch(config)#interface ethernet 1/1
switch(config-if-ethernet1/1)#switchport mode hybrid
switch(config-if-ethernet1/1)#switchport hybrid allowed vlan 1000 untag
switch(config-if-ethernet1/1)#dot1q-tunnel selective s-vlan 1000 c-vlan 100-200
switch(config-if-ethernet1/1)#dot1q-tunnel selective enable
switch(config-if-ethernet1/1)#interface ethernet 1/2
switch(config-if-ethernet1/2)#switchport hybrid allowed vlan 2000 untag
switch(config-if-ethernet1/2)#dot1q-tunnel selective s-vlan 2000 c-vlan 201-300
switch(config-if-ethernet1/2)#dot1q-tunnel selective enable
switch(config-if-ethernet1/9)#switchport mode hybrid
switch(config-if-ethernet1/9)#switchport hybrid allowed vlan 1000;2000 tag
16.3.4 Selective QinQ Troubleshooting
Selective QinQ and dot1q-tunnel functions should not be configured synchronously for a port.
Only global mapping relation or port mapping relation is allowed to configure for selective
QinQ.
16.4 VLAN-translation
Configuration
16.4.1 Introduction to VLAN-translation
VLAN translation, as one can tell from the name, which translates the original VLAN ID to new
VLAN ID according to the user requirements so to exchange data across different VLANs.
VLAN translation supports ingress translation, and switch over the VLAN ID at the ingress.
Application and configuration of VLAN translation will be explained in detail in this section.
16.4.2 VLAN-translation Configuration
Configuration task sequence of VLAN-translation:
1. Configure the VLAN-translation function on the port
2. Configure the VLAN-translation relations on the port
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