Draytek VigorSwitch G2240, Руководство пользователя, Страница: 119 / 156

VigorSwitch G2240 User’s Guide 113
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.
2 2 . . 1 1 2 2 . . 2 2 S S T T P P C C o o n n f f i i g g u u r r a a t t i i o o n n
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”.