AirLive SNMP-24MGB - Manual (Page 153)

4. Web Management in SNMP-24MGB
AirLive SNMP-24MGB v2 User’s Manual 146
Current Forward Delay:
Show the current root bridge forward delay time. The value of Forward Delay time
is set by root. The Forward Delay time is defined as the time spent from Listening
state moved to Learning state or from Learning state moved to Forwarding state of
a port in bridge.
Hello Time:
Show the current hello time of the root bridge. Hello time is a time interval
specified by root bridge, used to request all other bridges periodically sending
hello message every “hello time” seconds to the bridge attached to its designated
port.
STP Topology Change Count:
STP Topology Change Count expresses the time spent in unit of seconds since
the beginning of the Spanning Tree Topology Change to the end of the STP
convergence. Once the STP change is converged, the Topology Change count will
be reset to 0. The figures showing in the screen may not be the exact time it spent
but very close to, because the time is eclipsing.
Time Since Last Topology Change:
Time Since Last Topology Change is the accumulated time in unit of seconds the
STP has been since the last STP Topology Change was made. When Topology
Change is initiated again, this counter will be reset to 0. And it will also count again
once STP topology Change is completed.
4.13.2 STP Configuration
The STP, Spanning Tree Protocol, actually includes RSTP. In the Spanning Tree
Configuration, there are six
parameters open for the user to configure as user’s idea.
Each parameter description is listed below.
Function name:
STP Configuration
Function description:
User can set the following Spanning Tree parameters to control STP function
enable/disable, select mode RSTP/STP and affect STP state machine behavior to
send BPDU in this switch. The default setting of Spanning Tree Protocol is “Disable”.