Chapter 13 Switch Setup; Garp Timer Setup; Switch Modes; Standalone Switch Mode - ZyXEL Communications IES-1248-51 User Manual

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

13.1 GARP Timer Setup

GARP (Generic Attribute Registration Protocol) allows network devices to register and de-
register attribute values with other GARP participants within a bridged LAN. GARP is a
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 Declarations are withdrawn by issuing a Leave message.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.

13.2 Switch Modes

The IES-1248-51 supports standalone and daisychain switch modes.

13.2.1 Standalone Switch Mode

"Standalone switch mode" relates to the IES-1248-51's operational behavior, not a standalone
network topology. The standalone switch mode allows either or both of the IES-1248-51's
Ethernet ports to connect to the backbone Ethernet network. You can also connect one of the
IES-1248-51's Ethernet ports to the Ethernet network and the other to another IES-1248-51
(see Figure 48 on page 100
you can use it in a network topology that uses loops (you should also enable RSTP). You can
have multiple IES-1248-51 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-1248-51. However, one IES-1248-51's subscribers can
communicate with another IES-1248-51's subscribers if the two IES-1248-51's Ethernet ports
are connected to each other (see
IES-1248-51 connected on the same network and set to standalone mode, they do not all need
to have the same port isolation setting.

Chapter 13 Switch Setup

C
H A P T E R
Switch Setup
for an example). When the IES-1248-51 is in standalone mode,
Figure 48 on page 100
IES-1248-51 User's Guide
for an example). If you have multiple
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