3Com Switch 7750 Configuration Guide Guide

Isolate-User-VLAN Configuration 109
Configuring
Isolate-User-VLAN
You can use the following commands to create an isolate-user-VLAN for a switch.
c
CAUTION:
■ Multiple isolate-user-VLANs can be configured for a switch.
■ With GVRP function enabled, a switch cannot be enabled with
isolate-user-VLAN function.
■ Isolate-user-VLAN does not forward multicast services data.
■ The isolate-user-VLAN function and super VLAN function cannot be enabled
simultaneously for a VLAN. If a VLAN is specified as an isolate-user-VLAN or a
secondary VLAN, you cannot configure it as a super VLAN or a sub VLAN
additionally.
Configuring Secondary
VLAN
Configuring a secondary VLAN is the same as configuring an ordinary VLAN.
Adding Ports to
isolate-user-VLAN and
Secondary VLAN
In order to transmit packets normally, all ports included in the isolate-user-VLAN
and the secondary VLAN must be hybrid ports, and all ports must perform untag
operation on all VLAN packets.
Add ports to
isolate-user-VLAN and
secondary VLAN and
configure them to perform
untag operation on packets
Required
“Adding Ports to
isolate-user-VLAN and
Secondary VLAN”
Configure the mapping
between the
isolate-user-VLAN and the
secondary VLAN
Required
“Configuring Mapping
between isolate-user-VLAN
and Secondary VLAN”
Table 54 isolate-user-VLAN configuration tasks
Operation Description Related section
Table 55 Configure an isolate-user-VLAN
Operation Command Description
Enter system view system-view -
Create a VLAN and enter
VLAN view
vlan vlan-id Required
Set the VLAN type to
isolate-user-VLAN
isolate-user-vlan enable Required
Table 56 Configure secondary VLAN
Operation Command Description
Enter system view system-view -
Create a secondary VLAN vlan vlan-id Required
Table 57 Add ports to isolate-user-VLAN and secondary VLAN and configure the ports to
untagged packets
Operation Command Description
Enter system view system-view -
Enter Ethernet port view
interface interface-type
interface-number
-