Symbol Technologies ES3000 - page 86

ES3000 User Guide
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3.5.43 Main Menu->Spanning Tree->MSTP Config.->MSTP Instance
Config.
A small tree instance can be considered in the MSTP. One Instance can have more than one VLAN.
Use the MSTP Instance Config. menu to add or remove a VLAN, or remove the MST Instance as
well as MST Instance and Instance Port configuration.