3Com Switch 4210 9-Port, Configuration Manual

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11
P
ORT
I
SOLATION
C
ONFIGURATION
Port Isolation
Overview
Through the port isolation feature, you can add the ports to be controlled into an
isolation group to isolate the Layer 2 and Layer 3 data between each port in the
isolation group. Thus, you can construct your network in a more flexible way and
improve your network security.
Currently, you can create only one isolation group on the Switch 4210. This
feature is also known as a Protected Port or an Isolated Port. The number of
Ethernet ports in an isolation group is not limited.
n
■
An isolation group only isolates the member ports in it.
■
Port isolation is independent of VLAN configuration.
Port Isolation
Configuration
You can perform the following operations to add an Ethernet ports to an isolation
group, thus isolating Layer 2 and Layer 3 data among the ports in the isolation
group.
n
■
When a member port of an aggregation group joins/leaves an isolation group,
the other ports in the same aggregation group on the local device will
join/leave the isolation group at the same time.
■
For ports that belong to an aggregation group and an isolation group
simultaneously, removing a port from the aggregation group has no effect on
the other ports. That is, the rest ports remain in the aggregation group and the
isolation group.
■
Ports that belong to an aggregation group and an isolation group
simultaneously are still isolated even when you remove the aggregation group
in system view.
■
Adding a port of an isolation group to an aggregation group causes all the
ports in the aggregation group being added to the isolation group.
Table 75 Configure port isolation
Operation Command Description
Enter system view system-view -
Enter Ethernet port view interface interface-type
interface-number
-
Add the Ethernet port to
the isolation group port isolate Required
By default, an isolation group
contains no port.