Westermo MDI-112-F4G - Manual (Page 63)

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4.4 Network Redundancy
The switch firmware supports standard RSTP, MSTP, Multiple Super Ring, Rapid
Dual Homing.
Multiple Spanning Tree Protocol(MSTP) is a direct extension of RSTP. It can
provide an independent spanning tree for different VLANs. It simplifies network
management, provides for even faster convergence than RSTP by limiting the size
of each region, and prevents VLAN members from being segmented from the rest
of the group (as sometimes occurs with IEEE 802.1D STP).
Multiple Super Ring (MSR) technology supports 0 milliseconds for restoration and
less than 300 milliseconds for failover.
Advanced Rapid Dual Homing (RDH) technology also facilitates the switch to
connect with a core managed switch easily and conveniently. With RDH
technology, you can also group several Rapid Super Rings or RSTP cloud together,
which is also known as Auto Ring Coupling.
Besides ring technology, the switch also supports 802.1D-2004 version Rapid
Spanning Tree Protocol (RSTP). New version of RSTP standard includes
802.1D-1998 STP, 802.1w RSTP.
Following commands are included in this section:
4.4.1 STP Configuration
4.4.2 STP Port Configuration
4.4.3 STP Information
4.4.4 MSTP Configuration
4.4.5 MSTP Port Configuration
4.4.6 MSTP information
4.4.7
Multiple Super Ring
4.4.8 Multiple Super Ring Information
4.4.9 Command Lines for Network Redundancy
4.4.1 STP Configuration
This page allows select the STP mode and configuring the global STP/RSTP Bridge
Configuration.
The STP mode includes the STP, RSTP, MSTP and Disable. Please select the STP
mode for your system first. The default mode is RSTP enabled. After select the STP
or RSTP mode, continue to configure the global Bridge parameters for STP and RSTP.
After select the MSTP mode, please go to MSTP Configuration page.
Figure below shows the web page which allows you to select the STP mode,
configure the global STP/RSTP/MSTP settings.