ZyXEL Communications IES-612-51A 10.2.3 Daisychain Switch Mode, 10.2.2 Port Isolation with Standalone Switch Mode Example, 10.2.4 Port Isolation with Daisychain Switch Mode Example

Chapter 10 Switch Setup

10.2.2 Port Isolation with Standalone Switch Mode Example

The following graphic shows IES-612-51A 1 and 2 connected to each other and the Ethernet backbone switch (3) in a network topology that creates a loop. The IES-612-51A are using the standalone switch mode and have RSTP enabled.

In this example, both IES-612-51A 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 41 Port Isolation with Standalone Switch Mode Example

10.2.3 Daisychain Switch Mode

Daisychain switch mode sets the IES-612-51A 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-612-51A. The daisychain switch mode is recommended for use in a network topology that does not have loops. When you daisychain multiple IES-612- 51A they must all be set to daisychain mode.

Daisychain switch mode with port isolation enabled blocks communications between subscriber ports on an individual IES-612-51A and between the subscribers of any daisychained IES-612-51A (see Figure 42 on page 99 for an example). Use the same port isolation setting on all IES-612-51A that you set up in a daisychain.

10.2.4 Port Isolation with Daisychain Switch Mode Example

In the example below, the IES-612-51A 1 has its Ethernet port one (ENET 1) connected to the Ethernet backbone switch (3) and it’s Ethernet port two (ENET2) connected to Ethernet port one (ENET 1) of the daisychained IES-612-51A (2).

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	IES-612-51A User’s Guide