NETGEAR GS724TPS - ProSafe - Gigabit Stackable PoE Smart Switch Software Administration Manual page 136

GS700TPS Smart Switch Software Administration Manual
– Disable – Disables Fast Link on the interface. This is the default.
• Port State – Displays the current STP state of a port. If enabled, the port state determines
what forwarding action is taken on traffic. Possible port states are:
– Forwarding – Indicates STP is enabled on the port, and the port is forwarding packets
based on the STP topology.
– Disabled – Indicates STP is currently disabled on the port. The port forwards traffic
while learning MAC addresses.
– Blocking – Indicates the port is currently blocked and cannot forward traffic or learn
MAC addresses.
– Listening – Indicates the port is in Listening mode. The port cannot forward traffic nor
can it learn MAC addresses.
– Learning – Indicates the port is in Learning mode. The port cannot forward traffic,
however it can learn new MAC addresses.
• Speed – Displays the speed at which the port is operating.
• Path Cost – Enter the method used to assign default path cost to STP ports. The possible
field range is 1 - 200000000. The default path cost assigned to an interface varies
according to the selected CST configuration method (Hello Time, Max Age or Forward
Delay).
• Priority – Select the port priority value. When switches or ports are running STP, each is
assigned a priority. After exchanging BPDUs, the device with the lowest priority value
becomes the Root Port. The port priority has a range of 0-240 in increments of 16. The
default value is 128.
2. Select the STP Status and Fast Link status in the provided fields.
3. Enter the Path Cost in the provided field.
4. Select the Priority from the list in the provided field.
5. Click APPLY to update the device.
RSTP
While Classic STP prevents forwarding loops in a general network topology, convergence can take
between 30-60 seconds. This time may delay detecting possible loops and propagating status
topology changes. Rapid Spanning Tree Protocol (RSTP) detects and uses network topologies that
allow a faster STP convergence without creating forwarding loops. The Global System LAG
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v1.0, June 2009
Configuring Switching Settings