Planet Technology WGS3-2840 - Manual (Page 36)

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4.4.1 Rapid Spanning Tree
This section provides Rapid Spanning Tree function from Layer 3 Managed Switch . The Spanning Tree Protocol (STP) is
a standardized method (IEEE 802.1d) for avoiding loops in Ethernet networks. And, the Rapid Spanning Tree Protocol
(IEEE 802.1w RSTP) is an evolution of the Spanning Tree Protocol and provides for faster spanning tree convergence
after a topology change. When enable STP/RSTP function, please ensure only one path at a time is active between any
two nodes on the network. We can enable STP/RSTP from the Switch setting advanced item of web interface. We are
recommended you to enable STP/RSTP on whole Switches for ensures a single active path in the network.
Figure 4-32 Rapid Spanning Tree Bridge Configuration Web Page screen
Rapid Spanning Tree Bridge Configuration:
This function provides Rapid Spanning Tree Bridge Configuration and view the Spanning tree Root Bridge information. The
Rapid Spanning Tree screen in
Figure 4-32 appears. Table 4-5 descriptions the Rapid Spanning Tree Bridge Configu-
ration Web page objects.
Table 4-5 Descriptions of Rapid Spanning Tree Bridge Configuration Web Page screen Objects
After setup completed, please click “OK” button to take effect.
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Notice : please 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)
Object Description
Spanning Tree
Status Allow choose Disable or enable Spanning Tree function. Default mode is Disable.
Force Protocol
Version Allow choose IEEE 802.1d Spanning Tree or IEEE 802.1w Rapid Spanning Tree function.
0= IEEE 802.1d STP, 2=IEEE 802.1w RSTP. Default mode is 2.
Max Age (6-40s) 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.
Hello Time (1-10s) The time that controls switch sends out the BPDU packet to check STP current status. Enter a
value between 1 through 10.
Forward Delay
Time (4-30s) The number of seconds a port waits before changing from its Spanning-Tree Protocol learning
and listening states to the forwarding state. Enter a value between 4 through 30.
Bridge Priority
(0-61440) 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 change the value, must reboot the switch assign path priority
number. The value must be multiple of 4096 according to the protocol standard rule.