Lantronix SISPM1040-xxxx-L3 Web User Guide
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STP Configuration
This page lets you configure STP system settings which are used by all STP Bridge instances in the switch.
Basic Settings
Protocol Version: The MSTP / RSTP / STP protocol version setting. Valid values are STP, RSTP and MSTP.
STP: Spanning Tree Protocol is an OSI layer-2 protocol which ensures a loop free topology for any
bridged LAN. The original STP protocol is now obsolete by RSTP.
RSTP: In 1998, the IEEE with document 802.1w introduced an evolution of STP: the Rapid Spanning
Tree Protocol, which provides for faster spanning tree convergence after a topology change. Standard
IEEE 802.1D-2004 now incorporates RSTP and obsoletes STP, while at the same time being backwards-
compatible with STP.
MSTP: In 2002, the IEEE introduced an evolution of RSTP: the Multiple Spanning Tree Protocol. MSTP
provides for multiple spanning tree instances, while ensuring RSTP and STP compatibility.
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