Web Based 1+1 Setup
The 1+1 Setup is an extension of the basic 1+0 setup. 1+1 hot standby utilizes two units connected to a combiner to allow sharing of an antenna at each end of the link. One of the units at each end is the main (active) unit and the other unit is in standby, which means that it is ready to take over should the active unit fail.
This section assumes that the physical installation has been done already. Return to the Installation section and connect the units in a 1+1 configuration if required.
1) Follow the steps for 1+0 on the main link as described above with the backup units turned off.
2) Turn the standby radio units on, but ensure the opmode is off on both to avoid disturbing the active link.
3) On the Active Link Config Page click the Failover Mode On (port off) button.
(On with ports on may be used as well, but both the active and standby will have ports on and the standby will receive and forward all traffic out the enabled Ethernet ports. If this method is used, it is imperative to have a network that is capable of detecting and supporting this configuration.)
4) Repeat for the Active link other end unit.
5) Click the Config Save button at the lower left of any webpage – This must be done on both sides of the link. Only the saved configuration will be synced between the active and standby units.
6) Wait at least one minute for the election process to complete. The Active unit will not find a standby, so it will continue to be the active.
7) Set the same failover mode on the spare radios to become standby units. They will detect the Active units and the Active will sync the config to the standby units. If failover is enabled on the standby units while the actives are still in the election period, the active role will be taken by the radio with the higher MAC address.
8) The display for the Link status at the top of the page should change to show both Active and Standby units “Green” for all 4 units.
9) The system is now setup in 1+1 mode. If the main link fails, the ports will be shut down on the main link and the traffic will flow through the standby link, allowing connected switches to re-route the traffic.
10) Click the Config Save button at the lower left of any webpage – This must be done on both sides of the link.
CLI Based 1+1 Hot Standby Configuration
This section assumes that the physical installation has been done already. Return to the Installation section and connect the units in a 1+1 configuration if required.
Steps to configure 1+1 Hot Standby:
1) Follow the 1+0 configuration section to establish a link between the two main ends of the link, with the second pair of radios turned off. The antennas should be aligned at this point.
2) Connect the redundancy cable (CBLDAT-RIU3 for GigaPlus) between the two IDUs or ApexPlus OMUs if not already connected.
3) For both ends of the main link:
- Set the failover function to ON using the failover command.
failover 1 will enable failover with data ports off on the standby
failover 2 will enable failover with data ports on for all units. - Set opmode on.
- Set default_opmode on.
- Save the configuration using config save
4) Wait approximately one minute and use the utype command to confirm that the active radios have taken the active role and the election period is over. In utype the current utype should show as active and election period should show as no before continuing or the radios will complete an election process to determine the active and standby roles.
5) Bring the second link (Standby) up. If the primary link is in production, ensure the standby units have been programmed with default_opmode off.
- Set the failover function to ON using the failover command on both ends of the standby link.
- The new units should detect the active radios and have the saved configuration sync’d from the active to the standby.
6) Verify by using the utype command on all radios to ensure protection is enabled and all radios are synchronized after a few minutes.
7) Use config save on all units to ensure the sync’d configuration is saved.
8) If desired, test a hardware switchover with utype_switch.
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