User's Manual

139
Reference for the Business Policy Switch 2000 Management Software Operations
Chapter 6
Creating and managing multiple STGs
This chapter describes using Device Manager to manage multiple Spanning Tree
Groups (STGs) on your Business Policy Switch 2000. With software version 1.2,
the BPS 2000 supports multiple STGs. It includes the following sections:
• STGs
• Configuring STGs
• Displaying STG status
• Displaying STG ports
STGs
The BPS 2000 supports a maximum of 8 multiple STGs, either all in one
standalone switch or across a stack.When working with STGs, observe the
following rules:
• Enable load balancing using multiple STGs by configuring each path with a
different VLAN and then assigning each VLAN to a separate STG.
• Each STG must be independently configured.
• With software version 1.2, the BPS 2000 supports a maximum of 256
port-based VLANs. With a maximum of 8 STGs, on average, each STG will
have 32 VLANs.
• In the default configuration of the BPS 2000, a single STG with the ID of 1
includes all ports on the switch.
— The Default STG sends only untagged BPDUs in order to operate with all
devices that support only one instance of STP.
— Although ports can be added to or deleted from the Default STG, the
Default STG itself cannot be deleted from the system.
• All other STGs must be created by the user.