Deployment Guide

￭ 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).
To verify that EdgePort is enabled, use the show config command from INTERFACE mode.
DellEMC(conf-if-te-1/1/1/1)#spanning-tree mstp edge-port
DellEMC(conf-if-te-1/1/1/1)#show config
!
interface TenGigabitEthernet 1/1/1/1
no ip address
switchport
spanning-tree mstp edge-port
spanning-tree MSTI 1 priority 144
no shutdown
DellEMC(conf-if-te-1/1/1/1)#
Flush MAC Addresses after a Topology Change
Dell EMC 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.
MSTP Sample Configurations
The running-configurations support the topology shown in the following illustration.
The configurations are from Dell EMC Networking OS systems.
Figure 98. MSTP with Three VLANs Mapped to Two Spanning Tree Instances
Router 1 Running-Configuration
This example uses the following steps:
568
Multiple Spanning Tree Protocol (MSTP)