Web application
PROmesh P9+
– User Manual
35
Ring configuration
Please note that the ring must not be physically closed until MRP is fully configured. One device per ring
must be configured as manager. The other devices must be configured as clients. The following settings
are required for MRP:
First ring port: Please select a port to work as primary ring port.
Second ring port: Specify a second port to operate as a secondary ring port. Please note that the
secondary ring port and the primary ring port must be different.
This device operates as: Please specify whether the device should act as a manager or as a
client. Please note that only one manager may be used per ring.
RSTP
The rapid spanning tree protocol (RSTP) is a standardised method for managing mixed structures, including
a ring, on the network. It prevents network loops that can result from redundant transmission paths and
includes a mechanism for automatic reconfiguration after a device or link failure.
Enable the RSTP function globally before configuring the corresponding parameters.
Root bridge information
The following parameters are displayed in this field:
Root port: Indicates which port is working as the root port. This port is the shortest path to the
root bridge
Root bridge ID: Identification number of the current root bridge negotiated between the devices.
Designated cost: Path cost calculated for the connection to the root bridge.
Root bridge MAC address: Displays the MAC address of the root bridge.
Device settings
Configure the protocol for your application:
Forward delay: The time a port waits before switching from the RSTP learning and listening state
to the forwarding state. Enter a value between 4 and 30 seconds.
Maximum age: The amount of time a bridge waits before attempting to reconfigure without
receiving spanning tree configuration protocol messages. Enter a value between 6 and 40
seconds.