3com S7906E Instruccion De Instalación
1-6
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Basic QinQ should be configured on the ports connecting customer networks.
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It is recommended that you do not configure QinQ on an RRPP-enabled port, because RRPP
packets may be transmitted to the wrong VLANs, causing RRPP to become invalid. If you really
need to configure QinQ on an RRPP-enabled port, you can configure VLAN mapping on the port
and configure the RRPP control VLANs as the CVLANs and SVLANs at the same time. In this way,
the RRPP packets can skip QinQ operations and continue to be transmitted in the control VLANs.
For detailed information about RRPP control VLANs, refer to the RRPP Configuration in the High
Availability Volume.
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Do not configure QinQ on a reflector port. For information about reflector ports, refer to Mirroring
Configuration in the Access Volume.
Configuring VLAN Transparent Transmission
When basic QinQ is enabled on a port, all packets passing through the port will be tagged with the port’s
default VLAN tag. However, by configuring the VLAN transparent transmission function on a port, you
can specify the port not to add its default VLAN tag to packets carrying specific inner VLAN tag(s) when
they pass through it, so that these packets are transmitted in the service provider network with single
tags.
Follow these steps to configure VLAN transparent transmission:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enter
Ethernet or
Layer-2
aggregate
interface
view
Ethernet or
Layer-2
aggregate
interface
view
interface interface-type interface-number
Enter
interface
view or port
group view
interface
view or port
group view
Enter port
group view
group view
port-group manual port-group-name
Required
Use either command.
Enable QinQ on the port(s)
qinq enable
Required
Disabled by default
Configure VLAN transparent
transmission on the port(s)
transmission on the port(s)
qinq transparent-vlan vlan-list
Required
By default, VLAN
transparent
transmission is not
configured.
transparent
transmission is not
configured.