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Back to Upgrading SBC Application Software

Back to Upgrading SBC Application Using Platform Manager

The SBC application revert from version 5.0.0R000 to 3.1.x/4.x versions is performed using EMA.

Once a revert is performed to a valid pre-5.0 SBC release, an upgrade to another pre-5.0 release is not supported. Upgrading to any other pre-5.0 releases requires the ConnexIP re-ISO installation. Refer to Re-Installing ConnexIP Operating System for SBC 5000 Series or Re-Installing ConnexIP Operating System for SBC 7000 Series for more information on ConnexIP re-ISO installation.

Firmware is not reverted back to earlier version as it is backward compatible with earlier SBC version.

All configurations performed after the upgrade will be lost on initiating the Revert. When the revert is complete, the configuration will rollback to the timeline mentioned in 'Last Used' field.

This procedure is service impacting.

The Revert Software is not supported on SBC 5100, SBC SWe and other Sonus SBC products which run on virtual platforms. For other SBC platforms, it is supported only after a SBC Upgrade (both offline and LSWU), but it is not supported after an ConnexIP ISO or SBC installation.

The following procedure describes the 

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application revert using the EMA:

  1. Launch the EMA. See Logging On to EMA in Platform Mode for guidance.

    You may launch the EMA in either the active or standby server.

    Logging On to EMA Platform

  2. Verify the versions in Monitoring > Dashboard > System and Software Info.

    New Application and OS Version

  3. Navigate to Administration > System Administration screen.

    System Administration Screen

  4. Click Revert Software Version.
    The Revert Software Version screen is shown. This displays the System or Partition for the current version and the older version.

    Revert Software Screen

  5. Click on to start the revert.

  6. A confirmation message appears on the screen. Click Ok to proceed.

    Confirmation of Revert Operation

    The Revert Software application simultaneously reverts both the Active (WFDSBC01a) and Standby (WFDSBC01b) server. On continuing with revert, the upgraded server(s) will reboot and come up with earlier release. During this process browser session will be lost and need to re-login.


    The Revert Software starts and changes the boot version to earlier version in both the active and standby server. For example, in this case it is 04.02.03R000 version. You can see the revert status in the Log section.

    Revert Logs

    Continuing Revert Operation

  7. Once you see Rebooting message in the logs, log out from the EMA.

    Rebooting SBC Platform

    The revert operation takes around 15 to 20 minutes to complete.

  8. Launch the Platform Manager using the default credentials.

    Beginning with 5.0 release, the Platform Manager is integrated into the EMA and hereafter referred to as EMA Platform Mode. So once it is reverted back to 3.x/4.x release, you may only use Platform Manager tool for further upgrades.

  9. Verify the revert software versions in Platform > Software Versions.

    Active Server Revert Status

    Standby Server Revert Status

    The roles of Active and Standby server may interchange depends upon the server, which is booting first. In this case, WFDSBC01b completed the rebooting first and became active.

    The above revert procedure reverts only the SBC application and not the ePSX application.

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