Cabletron Systems SEHI-22/24 User Manual

Also see for SPECTRUM: User guide User guide User guide User guide User guide

Contents

Monitoring Redundancy4-5Repeater Redundancydifferent port to be Primary or Active, the original Primary or Active portautomatically 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 toclear, and click on .To clear all redundancy configurations, click on in the All Circuitsportion 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 entriesMonitoring RedundancyOnce you have configured your redundant circuits, you can use the fields in theAll Circuits box to set the parameters that the SEHI uses to periodically test eachof the circuits. The SEHI automatically polls all enabled circuits through thePrimary port and all Backup ports at the time specified in the Test Time box. If thefirst poll fails (results in a no link condition with all of the circuit IP addresses), theSEHI checks the circuit’s Retries field. If Retries is greater than 0, the SEHI waitsthe number of seconds specified in the Poll Interval field, and then polls thecircuit again.To set the Poll Interval:NOTEAll backup ports will be disabled as soon as you enable the redundant circuit. The portsremain disabled until they become active due to primary port failure. If you disable theredundant circuit, you must manually enable each backup port in that circuit.NOTEBe sure to make all physical connections to the backup ports once the redundant circuithas been configured and enabled.NOTEAfter clearing redundancy settings by either method, backup ports remain disabled untilyou manually reenable them so that data loops do not occur. Before you enable the ports,disconnect their physical connections.