The following outputs should be collected at the time of the memory is low –
show mem stat
show proc mem sorted
show mem all totals
b- represents ‘byte’, also fyi –
“Total(b)” is the total amount of memory, in bytes, available for the processor after the Cisco IOS software is loaded.
“Used(b)” is the total amount of memory, in bytes, currently used
“Free(b)” is the total amount of memory, in bytes, currently free
“Lowest(b)” is the lowest amount of memory that was free at some point in time since the last reload of the router.
“Largest(b)” is the largest contiguous block of memory free in the router