FL SWITCH LM ...
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PHOENIX CONTACT 7278_en_04
This page displays the valid RSTP configuration settings for the selected port.
If termination devices or subnets are connected without RSTP or STP via a port, it is
recommended to set the "Admin Edge Port" to "Edge Port". In this way, a link modification
at this port does not result in a topology modification.
4.2.1.3 Switch/port ID
The validity of switches and ports is determined according to priority vectors.
Bridge identifier
A switch ID consists of 8 bytes as an unsigned integer value. When comparing two switch
IDs, the one with the lowest numeric value is of higher, i.e., "better", priority.
The first two bytes contain the priority.
The last 6 bytes contain the MAC address and thus ensure the uniqueness of the switch ID
in the event of identical priority values.
The switch with the lowest numerical switch ID becomes the root. It is recommended that
the root port and alternate port are specified using the priority.
Port identifier
The port ID consists of 4 bits for the port priority and 12 bits for the port number. The port ID
is interpreted as an unsigned integer value. When comparing two port IDs, the one with the
lowest numeric value is of higher, i.e., "better", priority.
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