ZyXEL IES-612-51A User Manual download pdf (Page 97)

IES-612-51A User’s Guide

CHAPTER 10

Switch Setup

The Switch Setup screen allows you to set up and configure global device features.

10.1 GARP Timer Setup

GARP (Generic Attribute Registration Protocol) allows network devices to register and de-

protocol that provides a generic mechanism for protocols that serve a more specific

application, for example, GVRP (GARP VLAN Registration Protocol). GARP and GVRP are

the protocols used to automatically register VLAN membership across switches.

Switches join VLANs by making a declaration. A declaration is made by issuing a Join

message using GARP. Declarations are withdrawn by issuing a Leave message. A Leave All

message terminates all registrations. GARP timers set declaration timeout values.

10.2 Switch Modes

The IES-612-51A supports standalone and daisychain switch modes.

10.2.1 Standalone Switch Mode

“Standalone switch mode” relates to the IES-612-51A’s operational behavior, not a standalone

network topology. The standalone switch mode allows either or both of the IES-612-51A’s

Ethernet ports to connect to the backbone Ethernet network. You can also connect one of the

IES-612-51A’s Ethernet ports to the Ethernet network and the other to another IES-612-51A

(see Figure 41 on page 98 for an example). When the IES-612-51A is in standalone mode, you

can use it in a network topology that uses loops (you should also enable RSTP). You can have

multiple IES-612-51A connected on the same network and set both of them 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-612-51A. However, one IES-612-51A’s subscribers can

communicate with another IES-612-51A’s subscribers if the two IES-612-51A’s Ethernet

ports are connected to each other (see Figure 41 on page 98 for an example). If you have

multiple IES-612-51A connected on the same network and set to standalone mode, they do not

all need to have the same port isolation setting.

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ZyXEL IES-612-51A User Manual Page 97