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01-13-2003
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Commnad for getting bandwidth usage
Hi all
Wanted to know if there is a command that gives me the bandwidth used at any point of time (in mbps). I pay for the bandwidth I have used and need to be alerted everytime I corss over a certain limit. Regards KS |
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01-13-2003
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the command ifconfig gives the amount of data passed through the interface in kb.
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01-13-2003
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Some other options (since you do not post what OS you are using)
netstat -i (should work with HP-UX, AIX, and Solaris) Tools for Linux |
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01-13-2003
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Here is a perl script that I wrote for crunching bandwidth via netstat. The script can be embedded in a infinite loop and easily modified to alert you when you go over xyz bandwidth.
This was coded under FreeBSD 4.5. Code:
#!/usr/bin/perl
open(NETSTAT, "/usr/bin/netstat -I vr0 1|") || die "$!";
for ($lineCount = 1; $lineCount <= 3; $lineCount++) {
$inputLine = <NETSTAT>;
chomp($inputLine);
if ($lineCount == 3) {
$inputLine =~ s/\s+/-/g;
my @column = split(/-/, $inputLine);
$throughPut = ($column[6]*8)/1024;
print "$throughPut\n";
};
};
close(NETSTAT);
Code:
FreeBSD:auswipe:/home/auswipe $ /usr/local/netperf/netperf -H 10.0.0.1 -l 20 -P0 & [1] 8255 FreeBSD:auswipe:/home/auswipe $ ./bandwidth.pl 62338.296875 FreeBSD:auswipe:/home/auswipe $ ./bandwidth.pl 86973.65625 FreeBSD:auswipe:/home/auswipe $ ./bandwidth.pl 89893.75 FreeBSD:auswipe:/home/auswipe $ ./bandwidth.pl 89491.59375 FreeBSD:auswipe:/home/auswipe $ ./bandwidth.pl 90169.5625 16384 32768 32768 20.00 82.07 [1]+ Done /usr/local/netperf/netperf -H 10.0.0.1 -l 20 -P0 FreeBSD:auswipe:/home/auswipe $ ./bandwidth.pl 0 FreeBSD:auswipe:/home/auswipe $
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Not quite as cool as all the other Kids... |
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01-16-2003
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Hello,
Can I use the same method to get the bandwidth usage in Solaris. The netstat ( netstat -I interface seconds ) gives the packets traffic. So, say if the packet at one point of time is 25, to get traffic in terms of bytes, ( 1500 [ ie mtu ] * 25 ) / 8 I hope MTU is in units of bits. Is this correct ?.. Thanks in advance... |
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