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Important OSM/ESM Functions
2-7
Industrial Ethernet OSM/ESM Network Management
C79000-G8976-C137-08
Note
The OSM/ESM passes on all spanning tree frames regardless of the function
described above. The OSM/ESM itself does not send any spanning tree frames.
The times involved in configuration changes depend on the spanning tree
configuration and the network topology. The actual time required to change the
configuration must be determined based on tests.
During modification of a configuration, ”Configuration BPDUs” (configuration
frames) with the ”TC” Flag (”topology change” bit) set are sent repeatedly in a
connected spanning tree network . Based on these frames, an OSM/ESM
recognizes the duration of the changes to the configuration.
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