Defining Point-to-Point Links

By default, the administrative point-to-point status is set to auto on all Spanning Tree ports, allowing the Extreme Networks firmware to determine each port‘s point-to-point status. In most cases, this setting will not need to be changed and will provide optimal RSTP functionality. You can, however, use the following commands to review and, if necessary, change the point-to-point status of a Spanning Tree link.

Review and define the point-to-point status of an RSTP link as follows:

1. Display the point-to-point operating status of a LAN segment attached to a port:

   show spantree operpoint [port port-string]

   A status of “true” indicates the LAN segment is operating as a point-to-point link.

   A status of “false” indicates it is not.

   If port-string is not specified, point-to-point operating status will be displayed for all Spanning Tree ports.

2. Display the point-to-point administrative status of a LAN segment attached to a port:

   show spantree adminpoint [port port-string]

   A status of “true” indicates the port is administratively set to be considered point-to-point.

   A status of “false” indicates the port is administratively set to be considered non point-to-point.

   A status of “auto” (the default setting) indicates that the firmware is allowed to determine the port‘s point-to-point status.

   If port-string is not specified, point-to-point administrative status will be displayed for all Spanning Tree ports.

3. If necessary, change the point-to-point administrative status of a LAN segment attached to a port:

   set spantree adminpoint port-string {auto | true | false}