PureStream PureLink VIP-NET-M28A Media Hub, User Manual

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VIP-NET-M28A Network Switch - USER MANUAL
VERSION 1.0
MSTP
Since the recovery time of STP and RSTP takes seconds, which are unacceptable in some industrial
applications, MSTP was developed. The technology supports multiple spanning trees within a network by
grouping and mapping multiple VLANs into different spanning-tree instances, known as MSTIs, to form
individual MST regions. Each switch is assigned to an MST region. Hence, each MST region consists of
one or more MSTP switches with the same VLANs, at least one MST instance, and the same MST region
name. Therefore, switches can use different paths in the network to effectively balance loads.
Port Settings
This page allows you to examine and change the configurations of current MSTI ports. A MSTI port is a
virtual port, which is instantiated separately for each active CIST (physical) port for each MSTI instance
configured and applicable for the port. The MSTI instance must be selected before MSTI port configuration
options are displayed.
This page contains MSTI port settings for physical and aggregated ports. The aggregation settings are
stack global.