ZyXEL Communications IES-1248-51 Guía de usuario descargar pdf (Pagina 108)

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Chapter 13 Switch Setup

IES-1248-51V User’s Guide

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to use standalone mode in order to use them with a network topology that uses

loops.

Standalone switch mode with port isolation enabled blocks communications

between subscriber ports on an individual IES-1248-51V. However, one IES-1248-

51V’s subscribers can communicate with another IES-1248-51V’s subscribers if

the two IES-1248-51V’s Ethernet ports are connected to each other (see Figure 50

on page 108 for an example). If you have multiple IES-1248-51V connected on

the same network and set to standalone mode, they do not all need to have the

same port isolation setting.

13.2.2 Port Isolation with Standalone Switch Mode Example

The following graphic shows IES-1248-51V 1 and 2 connected to each other and

the Ethernet backbone switch (3) in a network topology that creates a loop. The

IES-1248-51V are using the standalone switch mode and have RSTP enabled.

In this example, both IES-1248-51V have port isolation turned on.

Communications between A and B must first go through another switch (3 in the

figure). However, A and B can communicate with C without their communications

going through another switch or router.

Figure 50 Port Isolation with Standalone Switch Mode Example

13.2.3 Daisychain Switch Mode

Daisychain switch mode sets the IES-1248-51V to use Ethernet port one (ENET 1)

as an uplink port to connect to the Ethernet backbone and Ethernet port two

(ENET 2) to connect to another (daisychained or subtending) IES-1248-51V. The

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