D-Link DGS-3224TG User Manual page 52

You can also enter the name of the System, its location, and the name and telephone number of the
system administrator. It is recommended that the person responsible for the maintenance of the
network system that this switch is installed on be listed here.
Configure Advanced Switch Features
Select ADVANCED SETTINGS at the bottom of the Switch Information menu and press Enter to
access the following Configure Advanced Switch Features menu:
This screen allows you to set the following features:
•
Auto-Logout:<Never> – This sets the time the interface can be idle before the switch automatically
logs-out the user. The options are 2 mins, 5 mins, 10 mins, 15 mins, or Never.
•
MAC Address Aging Time (sec):[300 ] – This field specifies the length of time a learned MAC
Address will remain in the forwarding table without being accessed (that is, how long a learned MAC
Address is allowed to remain idle). The Aging Time can be set to any value between 17 and 2200
seconds.
Note: A very long Aging Time can result with the out-of-date Dynamic Entries that may cause
incorrect packet filtering/forwarding decisions. A very short aging time may cause entries to
be aged out to soon, resulting in a high percentage of received packets whose source
addresses cannot be found in the address table, in which case the switch will broadcast the
packet to all ports, negating many of the benefits of having a Switch.
•
IGMP Snooping:<Disabled> – This setting enables Internet Group Management Protocol (IGMP)
Snooping, which enables the switch to read IGMP packets being forwarded through the switch in
order to obtain forwarding information from them (learn which ports contain Multicast members.
•
Switch GVRP:<Disabled> – Group VLAN Registration Protocol is a protocol that allows members to
dynamically join VLANs. This is used to enable or disable GVRP on the switch.
Figure 6-13. Configure Advanced Switch Features menu
DGS-3224TG Gigabit Ethernet Switch User's Guide
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