3Com 3CBLSF50 User Guide - Page 45

VLAN, Broadcast Storm

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You can use the Switch to create VLANs to organize any group of ports into separate broadcast domains. VLANs confine broadcast traffic to the originating group and help eliminate broadcast storms in large networks. This also provides for a more secure and cleaner network environment. You can create up to 256 VLANs, add specific ports to a chosen VLAN (so that the port can only communicate with other ports on the VLAN), or configure a port make it a member of multiple or even all VLANs. Communication between different VLANs can only take place if they are all connected to a router or layer 3 switch. The Device menu includes five (or six for 3CBLS26PWR only) items: ■ VLAN ■ Spanning Tree ■ IGMP Snooping and Query ■ Broadcast Storm ■ QoS ■ PoE Configuring VLANs 45 VLAN Click Device, then VLAN on the menu. A screen appears with seven tabs that include: ■ Setup ■ Modify VLAN ■ Modify Port ■ Rename ■ Remove ■ Port Detail ■ VLAN Detail

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Configuring VLANs
45
You can use the Switch to create VLANs to organize any
group of ports into separate broadcast domains. VLANs
confine broadcast traffic to the originating group and
help eliminate broadcast storms in large networks. This
also provides for a more secure and cleaner network
environment.
You can create up to 256 VLANs, add specific ports to a
chosen VLAN (so that the port can only communicate
with other ports on the VLAN), or configure a port
make it a member of multiple or even all VLANs.
Communication between different VLANs can only take
place if they are all connected to a router or layer 3
switch.
The Device menu includes five (or six for 3CBLS26PWR
only) items:
■
VLAN
■
Spanning Tree
■
IGMP Snooping and Query
■
Broadcast Storm
■
QoS
■
PoE
VLAN
Click
Device
, then
VLAN
on the menu. A screen appears
with seven tabs that include:
■
Setup
■
Modify VLAN
■
Modify Port
■
Rename
■
Remove
■
Port Detail
■
VLAN Detail