Smart Isolation Commands - ZyXEL Communications XS3800-28 Cli Reference Manual

Smart Isolation Commands

This chapter explains how to use commands to configure smart isolation on the Switch.
79.1 Smart Isolation Overview
To block traffic between two specific ports within the Switch, you can use port isolation or private VLAN
(see Chapter 69 on page 262
For example, broadcast traffic from isolated ports on a switch (say B) can be forwarded to all ports on
other switches (A and C), including the isolated ports.
A
Isolated ports: 2~6
Root port: 7
Designated port: 8
Smart isolation allows you to prevent isolated ports on different switches from transmitting traffic to each
other. After you enable RSTP/MRSTP and smart isolation on the Switch, the designated port(s) will be
added to the isolated port list. In the following example, switch A is the root bridge. Switch B's root port 7
connects to switch A and switch B's designated port 8 connects to switch C. Traffic from isolated ports
on switch B can only be sent through non-isolated port 1 or root port 7 to switch A. This prevents isolated
for more information). However, it does not work across multiple switches.
B
Ethernet Switch CLI Reference Guide
293
C
H A P T E R
C
79