Hirschmann GREYHOUND GRS1020, Reference Manual

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Redundancy
12.2 Media Redundancy Protocol (MRP)
156
UM Config GRS
Release 8.0 09/2019

When every ring participant is configured, close the line to the ring. To do this, you connect the
devices at the ends of the line via their ring ports.

Check the messages from the device:

When applicable, integrate the MRP ring into a VLAN:

Switch the operation of the MRP-Ring on.

To save the changes temporarily, click the button.
mrp domain modify operation enable
Activates the MRP-Ring.
show mrp
Displays the parameters for checking.
The Operation field displays the operating state of the ring port.
Possible values:

forwarding
The port is enabled, connection exists.

blocked
The port is blocked, connection exists.

disabled
The port is disabled.

not-connected
No connection exists.
The Information field displays messages for the redundancy configuration and the possible
causes of errors.
When the device is operating as a ring client or a Ring Manager, the following messages are
possible:

Redundancy available
The redundancy is set up. When a component of the ring is down, the redundant line takes
over its function.

Configuration error: Error on ringport link.
Error in the cabling of the ring ports.
When the device is operating as a Ring Manager, the following messages are possible:

Configuration error: Packets from another ring manager received.
Another device exists in the ring that is operating as the Ring Manager.
Activate the Ring manager function on exactly one device in the ring.

Configuration error: Ring link is connected to wrong port.
A line in the ring is connected with a different port instead of with a ring port. The device
only receives test data packets on 1 ring port.