whether does it mean bytes or bits in file /proc/net/dev?

[Steven Law]

hi,all:

    i have a mrtg script to scale the network bandwidth usage.

here cames the script:

 

==============================================

 

Title[eth0]: eth0 bits
Options[eth0]: bits
Target[eth0]: `grep eth0 /proc/net/dev | sed 's/eth0://' | awk '{print $1; print $9; print ""; print ""}'`
PageTop[eth0]: eth0 bits
MaxBytes[eth0]: 1000000000
Ylegend[eth0]: bits
ShortLegend[eth0]: bits
XSize[eth0]: 350
YSize[eth0]: 150
Legend1[eth0]: bits 
LegendI[eth0]: input 
LegendO[eth0]: output 
WithPeak[eth0]: ymwd

 

==============================================

 

i have a intel e1000 netcard.

 

when i cat /proc/net/dev it tell me these:

 

==============================================

ftp:~# cat /proc/net/dev
Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
  eth0:2938970759 74016701    0    0    0     0          0      7482 96493909 3303716266    0    0    0     0       0          0

==============================================

 

i am confused that the title is 'bytes' both Receive and Transmit. but i think 2938970759 bytes are too huge to my e1000 netcard.

 

i want to know how to use the data from /proc/net/dev to scale my netcard?

how to rewrite my mrtg script above?

 

any suggestion is regarded!