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 Declarations are withdrawn by issuing a Leave message.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 supports standalone and daisychain switch modes.

13.2.1 Standalone Switch Mode

"Standalone switch mode" relates to the IES-1248's operational behavior, not a standalone
network topology. The standalone switch mode allows either or both of the IES-1248's
Ethernet ports to connect to the backbone Ethernet network. You can also connect one of the
IES-1248's Ethernet ports to the Ethernet network and the other to another IES-1248 (see
Figure 52 on page 110
use it in a network topology that uses loops (you should also enable RSTP). You can have
multiple IES-1248 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. However, one IES-1248's subscribers can
communicate with another IES-1248's subscribers if the two IES-1248's Ethernet ports are
connected to each other (see
1248 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
for an example). When the IES-1248 is in standalone mode, you can
Figure 52 on page 110
IES-1248-51/51A/53 User's Guide
H A P T E R
Switch Setup
for an example). If you have multiple IES-
1 3
109