Users Guide

• Enable EdgePort on an interface.

INTERFACE mode

spanning-tree mstp edge-port [bpduguard | shutdown-on-violation]

Dell Networking OS Behavior: Regarding bpduguard shutdown-on-violation behavior:

– If the interface to be shut down is a port channel, all the member ports are disabled in the hardware.

– When you add a physical port to a port channel already in the Error Disable state, the new member port is also disabled

in the hardware.

– When you remove a physical port from a port channel in the Error Disable state, the error disabled state is cleared on

this physical port (the physical port is enabled in the hardware).

– You can clear the Error Disabled state with any of the following methods:

* Use the shutdown command on the interface.

* Disable the shutdown-on-violation command on the interface (using the no spanning-tree stp-id

portfast [bpduguard | [shutdown-on-violation]] command).

* Disable spanning tree on the interface (using the no spanning-tree command in INTERFACE mode).

* Disabling global spanning tree (using the no spanning-tree command in CONFIGURATION mode).

Example of Enabling an EdgePort on an Interface

To verify that EdgePort is enabled, use the show config command from INTERFACE mode.

Dell(conf-if-te-1/1/1)#spanning-tree mstp edge-port

Dell(conf-if-te-1/1/1)#show config

interface TenGigabitEthernet 1/1/1

no ip address

switchport

spanning-tree mstp edge-port

spanning-tree MSTI 1 priority 144

no shutdown

Dell(conf-if-te-1/1/1)#

Flush MAC Addresses after a Topology Change

Dell Networking OS has an optimized MAC address flush mechanism for RSTP, MSTP, and PVST+ that flushes addresses only

when necessary, which allows for faster convergence during topology changes.

However, you may activate the flushing mechanism defined by 802.1Q-2003 using the tc-flush-standard command,

which flushes MAC addresses after every topology change notification.

To view the enable status of this feature, use the show running-config spanning-tree mstp command from EXEC

Privilege mode.

Multiple Spanning Tree Protocol (MSTP) 537