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BES50 fundamentals
Example of network aggregation plan application
VLAN connections
VLANs can be based on port groups, or each data frame can be explicitly
tagged to identify the VLAN group to which it belongs. When using
port-based VLANs, ports can either be assigned to one specific group
or to all groups. Port-based VLANs are suitable for small networks. The
BES50FE-12/24T PWR and BES50GE-12/24T PWR switches can be easily
configured to support several VLAN groups for various organizational
entities.
When you expand port-based VLANs across several switches, you need
to make a separate connection for each VLAN group. This approach
is, however, inconsistent with the Spanning Tree Protocol, which can
easily segregate ports that belong to the same VLAN. When VLANs cross
separate switches, you need to use VLAN tagging. This allows you to assign
multiple VLAN groups to the trunk ports (that is, tagged ports) connecting
different switches.
When connecting to a switch that does not support IEEE 802.1Q VLAN
tags, use untagged ports.
The following figure is an example of possible VLAN connections.
SMB
Using the Nortel Business Ethernet Switch 50 Series
NN47924-301
01.01
Standard
1.00
October 2006
Copyright © 2006, Nortel Networks
Nortel Networks Confidential
.
Summary of Contents for BES50FE-12T PWR
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