
Multiple Instance
802.1s Multiple Spanning Tree Protocol (MSTP)
MSTP BPDU (MSTP Bridge Protocol Data Unit): These BPDUs carry
MSTP Bridge: In this manual, an MSTP bridge is a switch (or another 802.1s- compatible device) configured for MSTP operation.
MST Region: An MST region forms a multiple spanning tree domain and is a component of a single
■All switches have identical MST configuration identifiers (region name and revision number).
■All switches have identical VLAN assignments to the region’s IST and (optional) MST instances.
■One switch functions as the designated bridge (IST root) for the region.
■No switch has a
RSTP — Rapid Spanning Tree Protocol, defined in IEEE 802.1w and ratified in IEEE
STP — Spanning Tree Protocol, part of the original IEEE 802.1D specification. The 2004 edition completely deprecates STP. Both RSTP and MSTP have fallback modes to handle STP.
SNMP — Simple Network Management Protocol, used to remotely manage network devices.