AudioCodes Mediant 3000 User Manual page 612

5. The previously active blade (now in redundant mode) installs and burns the file to
its flash memory with a reset. Therefore, both blades now run the new software
version.
6. An HA switchover occurs from the active blade (i.e., the initial redundant blade) to
the redundant blade (i.e., the initial active device) to return the blades to their
original HA state. Only the initial redundant blade undergoes a reset to return to
redundant state.
User's Manual
Figure 38-5: Hitless SW Upgrade Process
612
Mediant 3000
Document #: LTRT-89738