3Com Switch 7750 Configuration Guide Guide

116 CHAPTER 13: 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.
■ When a VLAN is configured as a super VLAN, ARP proxy function is
automatically enabled on the VLAN interface, and cannot be disabled.
Configuring a Sub VLAN You can configure a sub VLAN just as configuring an ordinary VLAN. See the VLAN
part of the Operation Manual 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 the Port part of the operation manual.
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.
Enter VLAN view vlan vlan-id -
Configure the current VLAN
as a super VLAN
supervlan Required
Table 61 Configure a VLAN as a super VLAN
Operation Command Description
Tabl e 62 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
Tabl e 63 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