This reports the name and version of software stored in the alternate, non-active, bank of flash memory, if one is installed, applicable to 6520 platforms. This is the staged or backup software an admin can fall back to or activate as part of a bank-swap upgrade strategy; checking this before initiating a swap confirms exactly what version the node would run immediately after the switch. For example, an admin planning to roll back a bad upgrade would check this object to confirm the alternate bank still holds the previous known-good version before switching banks.