/usr/bin/rrdtool create \
/usr/share/cacti/site/rra/netscreen_firewall_snmp_oid_256.rrd \
--step 300  \
DS:snmp_oid:GAUGE:600:0:999999999 \
RRA:AVERAGE:0.5:1:600 \
RRA:AVERAGE:0.5:6:700 \
RRA:AVERAGE:0.5:24:775 \
RRA:AVERAGE:0.5:288:797 \
RRA:MAX:0.5:1:600 \
RRA:MAX:0.5:6:700 \
RRA:MAX:0.5:24:775 \
RRA:MAX:0.5:288:797 \