Network Hardware User Manual

Monitoring Redundancy 4-5

Repeater Redundancy

different port to be Primary or Active, the original Primary or Active port

automatically resets to Backup/Inactive.

6. Once you have conﬁgured all the ports that compose the redundant circuit,

enable the circuit by clicking .

To clear the settings in one circuit, highlight the Circuit Name that you want to

clear, and click on .

To clear all redundancy conﬁgurations, click on in the All Circuits

portion of the window. Reset does the following:

• Deletes all entries in the Circuit Addresses box

• Changes the status of every Circuit to Disabled

• Reverts to previous Circuit Name(s)

• Clears all module and port entries

Monitoring Redundancy

Once you have conﬁgured your redundant circuits, you can use the ﬁelds in the

All Circuits box to set the parameters that the SEHI uses to periodically test each

of the circuits. The SEHI automatically polls all enabled circuits through the

Primary port and all Backup ports at the time speciﬁed in the Test Time box. If the

ﬁrst poll fails (results in a no link condition with all of the circuit IP addresses), the

SEHI checks the circuit’s Retries ﬁeld. If Retries is greater than 0, the SEHI waits

the number of seconds speciﬁed in the Poll Interval ﬁeld, and then polls the

circuit again.

To set the Poll Interval:

NOTE

All backup ports will be disabled as soon as you enable the redundant circuit. The ports

remain disabled until they become active due to primary port failure. If you disable the

redundant circuit, you must manually enable each backup port in that circuit.

NOTE

Be sure to make all physical connections to the backup ports once the redundant circuit

has been conﬁgured and enabled.

NOTE

After clearing redundancy settings by either method, backup ports remain disabled until

you manually reenable them so that data loops do not occur. Before you enable the ports,

disconnect their physical connections.