Description: SNMP object mgmtMemoryData allows the user to read management memory and, with certain restrictions, to write it as well. In particular, this object allows the user to read a management memory image and, at a later time, restore it. Management memory is accessed in uninterpreted 80-byte binary records, numbered starting from 1. As a result, doing a GET of instance number N will return bytes 80*(N-1) through 80*N-1 from management memory. If an attempt is made to read beyond the end of written flash, an error is returned; if a read of a record spans the end of written flash, only the valid data is returned.

To restore a management memory image, management memory must first be cleared and locked using the clearAndLock action on the mgmtMemoryAction object. Then management memory may be written sequentially, writing 80 bytes at a time until the last write, at which point less than 80 bytes may be written. During this operation, and until the GIGAswitch is rebooted, other SNMP sets requiring writes to management memory may not be done. It is therefore recommended that the GIGAswitch be booted as soon as possible after management memory has been restored.

Any attempt to write a management memory record out of sequence, for example writing record 5 followed by record 4 or record 7, results in an error.