Rstp; Rstp Setting - Emerson PACSystems SLM080 User Manual

PACSystems Ethernet Switch SLM080 User Manual
GFK-3125A
5.2

RSTP

The Rapid Spanning Tree Protocol (RSTP) is an evolution of the Spanning Tree Protocol. It provides
faster spanning tree convergence after a topology change. The system also supports STP and the
system will auto detect the connected device that is running STP or RSTP protocol.
5.2.1

RSTP setting

You can enable/disable RSTP function, and set parameters for each port .
Figure 26: RSTP Setting
The following table describes the labels in this screen.
Label
RSTP mode
Priority (0-61440)
Max Age Time(6-40)
Hello Time (1-10)
Forwarding Delay Time (4-30)
Apply
NOTE: Follow the rule to configure the MAX Age, Hello Time, and Forward Delay Time.
2 x (Forward Delay Time value –1) > = Max Age value >= 2 x (Hello Time value +1)
Web Management
Description
You must enable or disable RSTP function before
configuring the related parameters.
A value used to identify the root bridge. The bridge with the
lowest value has the highest priority and is selected as the
root . If the value changes, You must reboot the switch. The
value must be multiple of 4096 according to the protocol
standard rule.
The number of seconds a bridge waits without receiving
Spanning-tree Protocol configuration messages before
attempting a reconfiguration. Enter a value between 6
through 40.
The time that controls switch sends out the BPDU packet to
check RSTP current status. Enter a value between 1 through
10.
The number of seconds a port waits before changing from
its Rapid Spanning-Tree Protocol learning and listening
states to the forwarding state. Enter a value between 4
through 30.
Click " Apply " to set the configurations.
Section 5
Jan 2020
39