D-Link DGS-1100-08PV2 User Manual 1.00 WW - Page 34
L2 Features > Spanning Tree > STP Port Settings, From Port / To Port
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4 Configuration D-Link Smart Managed Switch User Manual and STP. STP Traps STP New Root Trap Select to enable or disable the STP new root trap option. STP Topology Change Select to enable or disable the STP topology change trap Traps option. Root Bridge Information Root Bridge Display the root bridge information. Root Cost Display the root cost information. Root Maximum Age Display the root maximum age in seconds. Root Forward Delay Display the root forward delay in seconds. Root Port Display the root port. Table 4.22 Click Apply to make the configurations take effect. L2 Features > Spanning Tree > STP Port Settings STP can be set up per port. In addition to setting Spanning Tree parameters for use on the switch level, the Switch allows configuration of a spanning tree setup for a group of ports. Each port group spanning tree will require separate configuration. An STP Group spanning tree works in the same way as the switch-level spanning tree, but the root bridge concept is replaced with a root port concept. The root port is selected based on the priority of and path cost to the port. Redundant links will be blocked, just as redundant links are blocked on the switch level. The STP on the switch level blocks redundant links between switches (and similar network devices). The port level STP will block redundant links within an STP Group Figure 4.39 - L2 Features > Spanning Tree > STP Port Settings The fields that can be configured are described below: Item Description From Port / To Port Select the range of ports to be included in the spanning tree port group. Port Fast Select the Port Fast option here. Options to choose from are Network, Disabled, and Edge. In the Network mode the port will remain in the non-port-fast state for three seconds. The port will change to the port-fast state if no BPDU is received and changes to the forwarding state. If the port received the BPDU later, it will change to the non-port-fast state. In the Disable mode, the port will always be in the non-portfast state. It will always wait for the forward-time delay to 31