3Com Switch 7750 Configuration Guide

98 CHAPTER 11: VLAN CONFIGURATION
Configuring a
Hybrid-Port-Based VLAN
A Hybrid port may belong to multiple VLANs, and this configuration can only be
performed in Ethernet port view.
Follow these steps to configure the Hybrid-port-based VLAN:
n
■ To configure a Trunk port into a Hybrid port (or vice versa), you need to use the
Access port as a medium. For example, the Trunk port has to be configured as
an Access port first and then a Hybrid port.
■ Ensure that the VLANs already exist before configuring them to pass through a
Hybrid port.
■ The default VLAN IDs of the Hybrid ports on the local and the peer devices
must be the same. Otherwise, packets cannot be transmitted properly.
Configuring a
Trunk-Port-Based VLAN
A Trunk port may belong to multiple VLANs, and you can only perform this
configuration in Ethernet port view.
Follow these steps to configure the Trunk-port-based VLAN:
n
■ To convert a Trunk port into a Hybrid port (or vice versa), you need to use the
Access port as a medium. For example, the Trunk port has to be configured as
an Access port first and then a Hybrid port.
To do... Use the command... Remarks
Enter system view system-view -
Enter Ethernet port view interface interface-type
interface-number
-
Configure the port link type
as Hybrid
port link-type hybrid Required
Configure the default VLAN
of the Hybrid port
port hybrid pvid vlan
vlan-id
Optional
VLAN 1 is the default by
default
Allow the specified VLANs to
pass through the current
Hybrid port
port hybrid vlan
vlan-id-list { tagged |
untagged }
Required
By default, all Hybrid ports
only allow packets of VLAN 1
to pass.
To do... Use the command... Remarks
Enter system view system-view -
Enter Ethernet port view interface interface-type
interface-number
-
Configure the port link type
as Trunk
port link-type trunk Required
Configure the default VLAN
for the Trunk port
port trunk pvid vlan vlan-id Optional
VLAN 1 is the default by
default.
Allow the specified VLANs to
pass through the current
Trunk port
port trunk permit
vlan { vlan-id-list | all }
Required
By default, all Trunk ports only
allow packets of VLAN 1 to
pass.