User Manual Managed Switches
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If Industrial protocol PROFINET is not required for the switch application, it is recommended to
disable PROFINET to allow a port-independent use of any of the Web-Interface controlled
redundancy protocols.
Configuring MRP via Web-Interface
Use the
MRP
page of the Redundancy menu.
MRP Redundancy
Setting
Description
Factory Default
Enable
Enable the MRP client (MRC).
Disable
Disable
Disable the MRP client (MRC).
Ring Ports
Setting
Description
Factory Default
1st MRP Port
Select any port of the Switch to be one of the redundant
ports.
Port 01
2nd MRP Port
Select any port of the Switch to be one of the redundant
ports.
Port 02
Status
Description
Factory Default
Link down
No connection in this port.
LinkDown
Forwarding
Normal transmission in this port.
Discarding
The port is connected to a backup path and the path is
blocked.
3.6.3 The O-Chain Concept
O-Chain is an advanced software-technology that offers a highly flexible method for providing a
redundant network extension to any kind of existing switch network.
By using O-Chain technology the additional switches forming a chain will be connected redundantly
to a single switch, to daisy chained switches or to other redundant network topologies. A redundant
O-Chain simply will be configured by enabling chain redundancy on each switch, selecting the switch
interconnection ports as chain port and enable the edge port role for the ports of the two switches
which shall be connected to the existing network. For failure detection (broken chain) the O-Chain
protocol uses a similar method as used for O-Ring technology resulting in a healing time of the chain
of around 30 milliseconds. In terms of the entire network infrastructure the overall healing time
(performing a network topology update after the chain has been broken) depends on the network to
which the O-Chain is connected.