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QinQ configuration commands
Throughout this document, customer network VLANs (CVLAN), also called inner VLANs, refer to the
VLANs that a customer uses on the private network; and service provider network VLANs (SVLAN), also
called outer VLANs, refer to the VLANs that a service provider uses to carry VLAN tagged traffic for
customers.
Selective QinQ is achieved through QoS policies. For more information about QoS policy configuration
commands, see ACL and QoS Command Reference.
nest
Description
Use the nest command to add a VLAN nest action to a traffic behavior. If the traffic behavior already
contains a VLAN nest action, the new one overwrites the old one.
Use the undo nest command to remove the action.
The nest action enables a port to insert an outer VLAN tag in VLAN tagged traffic.
If a QoS policy contains a VLAN nest action, apply it only to the incoming traffic of a port, and you must
enable basic QinQ on the port or port group first.
The nest action cannot be applied to a VLAN or globally.
Related commands: qos policy, traffic behavior, and classifier behavior (ACL and QoS Command
Reference).
Syntax
nest top-most vlan-id vlan-id
undo nest top-most
View
Traffic behavior view
Default level
2: System level
Parameter
vlan-id vlan-id: Specifies a VLAN tag ID, ranging from 1 to 4094.
Example
# Create traffic behavior b1, and add the action of inserting outer VLAN tag 123.
<Sysname> system-view
[Sysname] traffic behavior b1
[Sysname-behavior-b1] nest top-most vlan-id 123
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