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Ericsson EFN324 - Page 52

Ericsson EFN324
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IndexIndex
6 Topologies
Topologies are the permissible physical configurations of EFN324 Ethernet
access switches. Stand-alone and embedded EFN324 support different sets of
topologies.
The topologies for Stand-alone EFN324 Ethernet access switches are
described in section 6.1 on page 48.
The topologies for Embedded EFN324 Ethernet access switches are
described in section 6.2 on page 50.
Note that link aggregation is not supported in any of the topologies.
For consistency, port 25 is used as the transit port, and port 26 as the uplink
port in this section.
6.1 Stand-alone Topologies
EFN324 may be used as a stand-alone node. In other words, the EFN324 is
not controlled by an ECN, but is instead controlled directly by PEM. Figure 22
on page 48 illustrates possible use scenarios for stand-alone EFN324 Ethernet
access switches.
Aggregation
node
End-
users
EFN
End-
users
EFN
Aggregation
node
Aggregation
node
Aggregation
node
End-
users
EFN
End-
users
EFN
End-
users
EFN
End-
users
EFN
End-
users
EFN
End-
users
EFN
Rapid Spanning Tree
Daisy Chained
Figure 22 Stand-alone EFN324 Use Scenarios