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seconds to the bridge attached to its designated port.
STP Topology Change Count:
Shows the time spent in seconds since the beginning of the Spanning
Tree Topology Change to the end of the STP convergence. Once the STP change has converged, the
Topology Change count will be reset to 0.
Time Since Last Topology Change:
Shows the accumulated time in seconds since the last STP
Topology Change was made. When a Topology Change is initiated again, this counter will be reset to 0. It
will start counting again once the STP Topology Change is completed.
3.13.2 Configuration
The STP Configuration page (Figure 3-42) allows the user to set the STP settings for the switch. The
settings are described below.
Figure 3-42: STP Configuration Page
Spanning Tree Protocol:
Sets whether 802.1w Rapid STP function is enabled or disabled. Default is
Disable.
Bridge Priority:
The lower the bridge priority, the higher the priority it has. Usually, the bridge with the
highest bridge priority is the root. If you want to have the SS2GD8I as the root bridge, you should set this
value lower than that of the other bridges in the LAN. Valid values are from 0-61440. The default is 32768.
Hello Time:
Hello Time is used to determine the periodic time to send normal BPDU from designated
ports among bridges. It decides how often a bridge should send this message to other bridges saying that
it is active. When the SS2GD8I is the root bridge, for example, all other bridges will use the hello time
assigned by this switch to communicate with each other. Valid values are from 1-10 seconds. Default is 2
seconds.
Max. Age:
When the SS2GD8I is the root bridge, all other switch on the LAN will use this number as their
maximum age time. When a bridge receives a BPDU originating from the root bridge and if the message
age conveyed in the BPDU exceeds the max. age of the root bridge, the bridge will treat the root bridge
as unavailable and issue a Topology Change Notification (TCN) BPDU to all other bridges. All bridges in
the LAN will then re-calculate and determine who the new root bridge is. Valid values are from 6-40
