User`s manual

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4.4 Network Redundancy
The switch firmware supports standard STP/RSTP and Multiple Super Ring (MSR).
The MSR includes Rapid Super Ring, Rapid Dual Homing, TrunkRing, MultiRing
and backward compatible with Legacy Super Ring Client modes.
MDI-110 Series support advanced Multiple Spanning Tree Protocol (MSTP). This
protocol 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, 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 Loop Protection
4.4.10 Command Lines for Network Redundancy
The STP Configuration, STP Port Configuration and STP Information pages are
available while select the STP and RSTP mode.
The MSTP Configuration, MSTP Port Configuration and MSTP Information pages
are available while select the MSTP mode.
The Multiple Super Ring and Multiple Super Ring Information are available while