IGS-9084GP-FB2 Series User Manual
ORing Industrial Networking Corp
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can be set by a network administrator to prevent bridges outside a
core region of the network from influencing the active spanning
tree topology because those bridges are not under the full control
of the administrator. This feature is also known as Root Guard.
Apply
Click to apply the configurations.
4.6.2 MSTP
Since the recovery time of STP and RSTP takes seconds, which is unacceptable in 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.
Bridge 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.
