Port Parameters

In this user interface, you can configure port parameters to enable the spanning tree protocol.

Navigation Path

In the NE Explorer, select a board and select Configuration > Layer-2 Switching Management > Spanning Tree from the Function Tree. Click the Port Parameters tab.

Buttons

Button	Description
Protocol Transfer	When the port protocol is changed from STP to RSTP, the port does not transmit RSTP packets immediately. By clicking Protocol Transfer, you can force the port to transmit RSTP packets immediately.

Parameters

Field	Value	Description
Port	For example: 1	Port ID.
Priority	0-240, in step length of 16 Default: 128	The Priority parameter is the key part of the port ID for the spanning tree feature of. The port ID consists of the port priority and the unique port number in the bridge. The port number is fixed and cannot be set. The port ID contains 16 bits, of which the first eight bits indicate the port priority and the later eight bits indicate the port number.
Port Path Cost	1-200000000	Used for calculating network topology.
Status	Discarding, Forwarding, Learning Default: Forwarding	The Status parameter specifies that a bridge port processes the data packets based on the port status computed by the spanning tree protocol.
Admin Edge Attribute	Enabled, Disabled Default: Disabled	Edge ports are directly connected to the terminal equipment and are not connected to any bridge in a network. The Admin Edge Attribute parameter is important in the RSTP. The status of these ports does not affect the topology of the entire network, and does not result in any loop. Hence, after the bridge protocol is enabled, these ports can change to the forwarding status without any delay.
Protocol Enabled	Enabled, Disabled Default: Disabled	Enables or disables the protocol.
Auto Edge Detection	Enabled, Disabled	Enables or disables a logical port to automatically detect the edge.
Port Rule	Disabled, Root, Designated, Alternate, Backup Default: Disabled	Displays the role of the port that supports the spanning tree function. In actual applications, the combination of Port Rule and Status helps quickly locate and analyze a problem.