Enhancements

Release M.10.37 Enhancements

Configuring MSTP Port Connectivity Parameters

With release K.12.04, all ports are configured as auto-edge-ports by default, and the spanning tree edge-portoption has been removed. This section describes selected spanning-tree<port-list>command parameters for enhanced operation.

Basic port connectivity parameters affect spanning-tree links at the global level. Therefore, in most cases, ProCurve recommends that you use the revised default settings for these parameters and apply changes on a per-port basis only where a non-default setting is clearly indicated by the circumstances of individual links (for example, see the root-guardoption below).

To display the spanning-tree settings for each port, use the show spanning-tree config command.

Syntax: [no] spanning-tree < port-list> < auto-edge-port admin-edge-port mcheck root-guard tcn-guard >

[auto-edge-port ]

Enables auto-edge-portoperation for MSTP, and supports the automatic detection of edge ports. (Default: Yes, enabled)

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

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

[ admin-edge-port ]

Enables admin-edge-portfor RSTP/MSTP. 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-portis disabled on a port and auto-edge-porthas not been disabled, the auto-edge-portsetting controls the behavior of the port.

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

[mcheck ]

Forces a port to send RSTP/MSTP BPDUs for 3 seconds. This allows for another switch connected to the port and running RSTP to establish its connection quickly and for identifying switches running 802.1D STP. If the whole-switch force-version parameter is set to stp-compatible, the switch ignores the mcheck setting and sends 802.1D STP BPDUs out all ports.

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