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DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
Figure 7-15. Switch Operation Mode window
Use the Restart Mode pull-down menu to select one of the two switch operation modes: Layer 2,
Support IEEE 802.1Q VLANs and IP Routing, Support IEEE 802.1Q VLANs.
To make a change in the operation mode of the switch effective, click Apply.
The switch will then save the changes made during the current session and reboot. The switch must be
rebooted to change the operation mode.
Menu Changes with Switch Operating Mode
Once the switch is configured for IP Routing (Layer 3 Switching), and rebooted, the Web Manager menu
adds some functions compared to the Layer 2 Only mode.
Switch Settings
The Switch Settings menu allows for various functions − some of which are configured on different
console screens − to be enabled or disabled on the switch (globally), without altering the individual
function’s configuration. Thus, the Distance-Vector Multicast Protocol (DVMRP) is configured from the
Configuration → Multicasting → IP Multicasting → DVMRP Settings window, but can be enabled or
disabled from the Layer 3 IP Routing Protocol Settings window − without changing the DVMRP
configuration entered in the DVMRP Settings window.
Layer 2 Switch Settings
To access the Layer 2 Switch Settings window, click Layer 2 Switch Settings (Configuration →
Switch Settings).
Figure 7-16. Layer 2 Switch Settings window
The following fields can then be set:
Parameter Description
MAC Address Aging
Time (10 …1000000
sec)
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 10 and 1,000,000 seconds.
Broadcast/Multicas
t Storm Mode
This field can be toggled among Broadcast, Multicast, BCST
& MCST, and Disabled using the space bar. These options
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