Complete Protocol dictionary, glossary and reference

802.1s

802.1s is an IEEE standard for the Multiple Spanning Tree (MST) Protocol, which was based on the Cisco's Multiple Instances Spanning Tree Protocol (MISTP). MST combines the best aspects from both the Cisco Per-VLAN Spanning Tree (PVST+) and the 802.1q. The idea is that several VLANs can be mapped to a reduced number of spanning tree instances because most networks do not need more than a few logical topologies.

Standard Organization

IEEE

Related Document

IEEE 802.1s