Clear the upgrade directory from both servers before reattempting further upgrades using the command
rm -fr /var/log/sonus/upgrade/* under all the following conditions:
- Performing LSWU from a pre-5.1 version to a 5.1 or later version.
- There is a need to revert the upgraded server after a single server upgrade while the peer is still on an older version.
- A revert will be performed by doing a re-ISO.
This section describes the different methods to upgrade the SBC Core (SBC 5000 series, SBC 7000 series and SBC SWe) application.
When the SBC upgrade is available, it is mainly posted on the Salesforce customer portal. Refer to Downloading the Software from Salesforce for more information.
Live Software Upgrade (LSWU)
LSWU allows the user to upgrade the SBC application software on High Availability (HA) pairs without impacting the service (call drops). This is mainly recommended for HA SBC systems. LSWU can also be performed on SBC EMA and SBC EMA Platform Mode. Refer to Live Software Upgrade using CLI and System Administration - Software Install-Upgrade for more information.
Non-Live Software Upgrade (Non-LSWU)
Non-LSWU upgrade process requires taking the SBC system offline to perform the application upgrade. This section describes upgrading the SBC application in a standalone or HA configuration using the Platform Manager or EMA Platform Mode. The Platform Manager tool is used to upgrade the SBC application from 3.x/4.x release to 5.0 release. Beginning with 5.0 release, the Platform Manager is integrated into the EMA and hereafter referred to as EMA Platform Mode. Thus, post 5.0 SBC application upgrades are performed using the EMA.