Interface - Traffic (bits/sec, Total Bandwidth)

[bunyas]

I'm using the Interface - Traffic (bits/sec, Total Bandwidth) graph for our Cisco 3750 switches to create interface usage graphs for our network team.

They are concerned that the graphs are not displaying the correct value for interface throughput. Their calculations and what is being displayed are off. They are thinking the graphs are displyaing Bytes instead of Bits....

How can I verify the graph CDEF function of Bytes to Bits is working correctly? The following is the debug information from a graph using the Interface - Traffic (bits/sec, Total Bandwidth).

Any assistance would be greatly appreciated.

c:/rrdtool/rrdtool.exe graph - \
--imgformat=PNG \
--start=-86400 \
--end=-300 \
--title="DIST-SW-WDM-SFARM2 - Traffic - Gi5/0/19" \
--rigid \
--base=1000 \
--height=120 \
--width=500 \
--alt-autoscale-max \
--lower-limit=0 \
--vertical-label="bits per second" \
--slope-mode \
--font TITLE:12: \
--font AXIS:8: \
--font LEGEND:10: \
--font UNIT:8: \
DEF:a="D\:/htdocs/cacti/rra/dist-sw-wdm-sfarm2_traffic_in_7886.rrd":traffic_in:AVERAGE \
DEF:b="D\:/htdocs/cacti/rra/dist-sw-wdm-sfarm2_traffic_in_7886.rrd":traffic_out:AVERAGE \
CDEF:cdefa=a,8,* \
CDEF:cdeff=b,8,* \
AREA:cdefa#00CF00:"Inbound" \
GPRINT:cdefa:LAST:" Current\:%8.2lf %s" \
GPRINT:cdefa:AVERAGE:"Average\:%8.2lf %s" \
GPRINT:cdefa:MAX:"Maximum\:%8.2lf %s" \
COMMENT:"Total In\: 49.29 GB\n" \
LINE1:cdeff#002A97:"Outbound" \
GPRINT:cdeff:LAST:"Current\:%8.2lf %s" \
GPRINT:cdeff:AVERAGE:"Average\:%8.2lf %s" \
GPRINT:cdeff:MAX:"Maximum\:%8.2lf %s" \
COMMENT:"Total Out\: 348.76 GB" \
COMMENT:" PHOCVMEDIA04,,,,,,AUTO,KC\n"

[gandalf]