This reports the size, in bytes, of the flash module currently selected, referring to the active bank when an alternate flash bank is installed, applicable to 6520 platforms. This is the total capacity of the currently active flash bank, which an admin compares against the size of the software actually stored there, cdx6500NMNPIflashSizeCur, to determine remaining headroom for a larger future software image. For example, a flash module capacity of 4MB with 3.8MB of software already stored leaves very little room for the next software release to grow into without exceeding the current bank's capacity.