DGS-3024 Gigabit Ethernet Switch Manual 
STP Switch Settings 
 
Figure 6- 10.  Switch Spanning Tree Settings window 
The following parameters can be set: 
Parameter                    Description 
Spanning Tree Status 
Use the pull-down menu to enable or disable STP globally on the Switch. The 
default is Disabled. 
Bridge Max Age (6 - 40 
Sec) <20> 
The Bridge Max Age may be set to ensure that old information does not endlessly 
circulate through redundant paths in the network, preventing the effective 
propagation of the new information. Set by the Root Bridge, this value will aid in 
determining that the Switch has spanning tree configuration values consistent 
with other devices on the bridged LAN. If the value ages out and a BPDU has still 
not been received from the Root Bridge, the Switch will start sending its own 
BPDU to all other switches for permission to become the Root Bridge. If it turns 
out that your switch has the lowest Bridge Identifier, it will become the Root 
Bridge. The user may choose a time between 6 and 40 seconds. The default 
value is 20. 
25