Implementation Of Qinq; Qinq Configuration; Configuring Qinq - H3C S7500 Series Operation Manual

Operation Manual – QinQ
H3C S7500 Series Ethernet Switches
You can have your private network VLAN IDs independent of public network VLAN
IDs.
Provides simpler Layer 2 VPN solutions for small-sized MANs or intranets.

1.1.2 Implementation of QinQ

QinQ can be implemented by enabling the QinQ function on ports.
With the QinQ function enabled, a received packet is tagged with the default VLAN tag
of the receiving port no matter whether or not the packet already carries a VLAN tag. If
the packet already carries a VLAN tag, the packet becomes a double-tagged packet.
Otherwise, the packet becomes a packet carrying the default VLAN tag of the port.

1.2 QINQ Configuration

1.2.1 Configuration Prerequisites
The QinQ feature cannot be configured while the Voice VLAN feature is in effect.
Before enabling QinQ on a port, make sure that Voice VLAN is disabled on the port.

1.2.2 Configuring QinQ

Follow these steps to configure QinQ:
Enter system view
Enter Ethernet port view
Enable QinQ for the port
Caution:
The LS82GT20 and LS82GP20 LPUs do not support the QinQ feature.
To do...
system-view
interface interface-type
interface-number
vlan-vpn enable
Use the command...
1-2
Chapter 1 QinQ Configuration
Remarks
—
—
Required
By default, QinQ is
disabled on a port.