User's Manual

Chapter 8 Setting up bridging 193
Reference for the Business Policy Switch 2000 Management Software Operations
Figure 103 Spanning Tree tab
Table 77 describes the Spanning Tree tab fields.
Table 77 Spanning Tree tab fields
Field Description
ProtocolSpecification Version of the spanning tree protocol being run.
Values include:
• decLb100: Indicates the DEC LANbridge 100
spanning tree protocol.
• ieee8021d: IEEE 802.1d implementations will
return this entry. When future versions of the
IEEE spanning tree protocol are released that are
incompatible with the current version, a new
value will be defined.
Priority Value of the writable portion of the bridge ID. That is,
the first two octets of the (8-octet long) bridge ID. The
last six octets of the bridge ID are given by the value
of BridgeAddress.
TimeSinceTopologyChange Time (in hundredths of a second) since the last time
a topology change was detected by the bridge entity.
TopChanges Number of topology changes detected by this bridge
since the management entity was reset or initialized.