Before configuring Multiple Spanning Tree Protocol (MSTP), familiarize yourself with the concepts of basic MSTP functions, topology convergence, MSTP protection, MSTP multi-process, and MSTP interoperability between Huawei devices and non-Huawei devices. This will help you complete the configuration task quickly and accurately.
MSTP is used to block redundant links on the Layer 2 network and trim a network into a loop-free tree. In MSTP, multiple MSTIs can be created and VLANs are mapped into different instances to load-balance VLAN traffic. The basic configuration roadmap of MSTP is as follows:
In a ring network, divide regions and create different instances for regions.
Select a device functioning as a root bridge from devices for each instance.
In each instance, calculate the shortest paths from the other devices to the root bridge, and select a root port for each non-root device.
In each instance, select a designated port for each connection according to port IDs.