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VLAN also increases network performance by limiting broadcasts to a smaller and more
manageable logical broadcast domain. In traditional switched environments, all broadcast packets
go to each and every individual port. With VLAN, all broadcasts are confined to a specific broadcast
domain.
Note: VLAN is unidirectional; it only governs outgoing traffic.
See Chapter 9 on page 83 for information on port-based and 802.1Q tagged VLANs.
8.5 Switch Setup Screen
Click Basic Setting > Switch Setup in the navigation panel to display the screen as shown. The
VLAN setup screens change depending on whether you choose 802.1Q or Port Based in the VLAN
Type field in this screen. Refer to Chapter 9 on page 83 for more information on VLAN.
Figure 43 Basic Setting > Switch Setup
The following table describes the labels in this screen.
Table 11 Basic Setting > Switch Setup
LABEL DESCRIPTION
VLAN Type Choose 802.1Q or Port Based. The VLAN Setup screen changes depending on whether
you choose 802.1Q VLAN type or Port Based VLAN type in this screen. See Chapter 9 on
page 83 for more information.
ARP Aging Time Enter a time from 60 to 1000000 seconds. This is how long a dynamically learned ARP entry
can remain in the ARP table before it is cleared (and must be relearned).
GARP Timer: 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 Declarations are withdrawn by issuing a Leave message.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. See the chapter on VLAN setup for more
background information.
