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Parameter
Fast
Forwarding*
* Since end-nodes cannot cause forwarding loops, they can pass through
the Spanning Tree state changes more quickly than allowed by standard
convergence time. Fast Forwarding can achieve quicker convergence for
end-node workstations and servers, and also overcome other STA related
timeout problems. (Remember that Fast Forwarding should only be
enabled for ports connected to an end-node device.)
Configuring Virtual LANs
You can use the VLAN configuration menu to assign any port on
the switch to any of up to 256 LAN groups. In conventional
networks with routers, broadcast traffic is split up into separate
domains. Switches do not inherently support broadcast domains.
This can lead to broadcast storms in large networks that handle
traffic such as IPX or NetBeui. By using IEEE 802.1Q compliant
VLANs, you can organize any group of network nodes into
separate broadcast domains, thus confining broadcast traffic to the
originating group. This also provides a more secure and cleaner
network environment. For more information on how to use
VLANs, see "Virtual LANs" on page 4-5. The VLAN configuration
screens are described in the following sections.
Default
Description
The default and recommended range is:
Ethernet:
Fast Ethernet: 19 (10~60)
Gigabit Ethernet: 4 (3~10)
The full range is 0 - 65535.
Enabled
This parameter is used to enable/disabled the
Fast Spanning Tree mode for the selected port.
In this mode, ports skip the Blocked, Listening
and Learning states and proceed straight to
Forwarding.
D
EVICE
100 (50~600)
C
M
ONTROL
ENU
3-35
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