Port Identifier - Hirschmann RS20 User Manual
Redundancy configuration
industrial ethernet (gigabit-)switch
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Spanning Tree
6.1 The Spanning Tree Protocol
6.1.5
Port Identifier
The port identifier consists of 2 bytes. One part, the lower-value byte,
contains the physical port number. This provides a unique identifier for the
port of this bridge. The second, higher-value part is the port priority, which is
specified by the Administrator (default value: 128). It also applies here that
the port with the smallest number for the port identifier has the highest
priority.
MSB
LSB
Priority Port number
Figure 45: Port Identifier
UM RedundConfig L2P
93
Release 8.0 05/2013
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