From a summary comment in the code:
If a stacked graph is requested, plot the total. Rather than
aggregating them with CDEFs of SUMs, we sum them in the script, which
allows us to create real series than can be easily borrowed by other
loaning graphs.
Those series are recv_bits and send_bits.
There are longstanding bugs with them (dating back to snmp__if). This
has been documented, as well as some potential ad hoc fixes for the
data.
Some outdated bug were also removed from the doc.
Signed-off-by: Olivier Mehani <shtrom@ssji.net>
