3Com Switch 7750 Configuration Guide

122 CHAPTER 14: SUPER VLAN
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CAUTION: You can not configure a VLAN which includes Ethernet ports as a super
VLAN; and after you configure a super VLAN, you cannot add any Ethernet port to
it.
Configuring a Sub VLAN You can configure a sub VLAN just as configuring an ordinary VLAN. See “VLAN
Configuration” on page 95 for details. The configuration commands are shown in
the following table.
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CAUTION: The port command is only used to add the access port to a sub VLAN.
If you want to add a trunk port or a hybrid port to a sub VLAN, you must execute
the port trunk permit vlan command and the port hybrid vlan command in
Ethernet port view. Refer to “Configuring a Trunk-Port-Based VLAN” on page 98
and “Configuring a Hybrid-Port-Based VLAN” on page 98.
Note that you can add multiple ports (except the uplink port) for a sub VLAN.
Configuring the
Mapping between a
Super VLAN and a Sub
VLAN
You can use the following commands to establish the mapping between a super
VLAN and a sub VLAN.
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CAUTION:
■ The sub VLAN must exist before you create mapping between the sub VLAN
and the super VLAN.
■ When you establish mapping between the super VLAN and the sub VLAN, if a
VLAN interface is configured for the sub VLAN, the system will prompt you to
delete the interface to establish the mapping successfully.
Table 69 Configure a VLAN as a super VLAN
Operation Command Description
Enter system view system-view -
Enter VLAN view vlan vlan-id -
Configure the current VLAN
as a super VLAN
supervlan Required
Table 70 Configure a sub VLAN
Operation Command Description
Enter system view system-view -
Create a sub VLAN vlan vlan-id Required
Add an Ethernet port to the
sub VLAN
port interface-list Required
Table 71 Configure the mapping between a super VLAN and a sub VLAN
Operation Command Description
Enter system view system-view -
Enter VLAN view of the super
VLAN
vlan vlan-id -
Establish the mapping
between a super VLAN and a
sub VLAN
port interface-list Required