3Com Switch 7750 Configuration Guide

24
PORT ISOLATION CONFIGURATION
Port Isolation
Overview
Introduction to Port
Isolation
Through the port isolation feature, you can add the ports to be controlled into an
isolation group to isolate Layer 2 and Layer 3 data between ports in the isolation
group. Thus, it can improve network security and deliver flexible networking
solutions.
Currently, you can configure 64 isolation groups on a switch. The number of
Ethernet ports an isolation group can accommodate is not limited.
n
■ An isolation group only isolates the member ports in it.
■ The port isolation function is independent of VLAN configuration.
Port Isolation and Link
Aggregation
■ When a port in an aggregation group joins an isolation group, the other ports
in the aggregation group join the isolation group automatically.
■ When a port in an aggregation group leaves an isolation group, the other ports
in the aggregation group leave the isolation group automatically.
Configuring Port
Isolation
Table 127 lists the operations to add an Ethernet port to an isolation group to
isolate Layer 2 data between ports in the isolation group.
Table 127 Configure port isolation
Operation Command Description
Enter system view system-view -
Create an isolation group port-isolate group group-id Required
Specify a description string
for the current isolation
group
description text Optional
Add the specified port into
the isolation group
port interface-list Optional
By default, an isolation group
contains no Ethernet port.
Enter Ethernet port view interface interface-type
interface-number
-
Add the current Ethernet
port to the specified
isolation group
port isolate group group-id Optional
By default, an isolation group
contains no Ethernet port.