53
4.4
Network Redundancy
It is critical to build up a non-stop network for industrial applications. We develop several
standard (STP, RSTP and MSTP) and patent redundancy protocol, Multiple Super Ring, to
achieve the network redundancy protected well by management switch.
JetNet 5020G supports 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 is Korenix 3
rd
generation Ring redundancy
technology. This is patent-protected by Korenix and used in countries all over the world.
MSR ranks the fastest restore and failover time in the world, 0 ms for restore and about 5
milliseconds for failover for copper.
The single one Korenix switch can aggregate multiple Rings within itself. All the ports can
be configured as the ring port of a ring, each ring has its own Ring ID and the Ring ID will
be added to the watchdog packet to monitor the ring status. This is Patterned MultiRing
Technology.
The Ring ports can be LACP/Port Trunking ports, after aggregated ports to a group, the
group of ports can act as the Ring port of the Ring. This is Patented TrunkRing Technology.
Advanced Rapid Dual Homing(RDH) technology also facilitates
JetNet 5020G
to connect
with a core managed switch easily and conveniently. With RDH technology, you can also
couple several Rapid Super Rings or RSTP cloud together.
Following commands are included in this group:
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 ERPS Configuration
4.4.9 Command Lines for Network Redundancy
The STP Configuraiton, STP Port Configuration and STP Information pages are available
while select the STP and RSTP mode.
The MSTP Configuraiton, 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 select the
MSR mode.
4.4.1
STP Configuration
