Vlans - 3Com 2816-SFP Plus (3C16485) User Manual

Speed Duplex — Shows the current speed and duplex mode.
(Auto or fixed choice)
In the Advanced Port Configuration page you can set the
Switch's broadcast storm control and threshold limits.
Figure 11 Advanced Port Configuration Screen
Broadcast Storm Control — Shows if broadcast storm control
is enabled or disabled.
Packet Rate Threshold — Shows the broadcast storm
threshold. (500 - 15000 packets per second)

VLANs

The Switch uses VLANs to organise any group of ports into
separate broadcast domains. VLANs confine broadcast traffic to
the originating group and can eliminate broadcast storms in large
networks. This also provides a more secure and cleaner network
environment.
You can create up to 256 VLANs, and either add specified ports
to a chosen VLAN so that the port can only communicate with
other ports on the VLAN, or specify that a port can belong to all
VLANs.
Communication between different VLANs can only take place if
they are all connected to a router or Layer 3 Switch.
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