Multiple Instance Spanning-Tree Operation

 

802.1s Multiple Spanning Tree Protocol (MSTP)

 

 

Command

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spanning-tree priority

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5-25

 

root-guard

 

 

tcn-guard

 

 

loop-protect

 

 

 

 

 

Configuring Per Port Parameters

Syntax: [no] spanning-tree <port-list> admin-edge-port

Enable admin-edge-porton ports connected to end nodes. During spanning tree establishment, ports with admin- edge-portenabled transition immediately to the forwarding state. If a bridge or switch is detected on the

segment, the port automatically operates as non-edge, not enabled. (Default: No - disabled)

If admin-edge-port is disabled on a port and auto-edge-port

has not been disabled, the auto-edge-portsetting controls the behavior of the port.

The no spanning-tree < port-list > admin-edge-port command disables edge-port operation on the specified ports.

Syntax: [no] spanning-tree < port-list> auto-edge-port

Supports the automatic identification of edge ports. The port will look for BPDUs for 3 seconds; if there are none it begins forwarding packets. If admin-edge-portis enabled for a port, the setting for auto-edge-portis ignored whether set to yes or no. If admin-edge-portis set to No, and auto- edge-porthas not been disabled (set to No), then the auto- edge-portsetting controls the behavior of the port. (Default: Yes - enabled)

The no spanning-tree < port-list> auto-edge-port command disables auto-edge-port operation on the specified ports.

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