command line network bandwidth tool?

[nosp]

Anyone recommend a command-line network bandwidth tool they use on
fedora?  I'm talking about something to show MB/sec across the local
machine's network interface(s), and perhaps more (breakdown by protocol,
etc.).  I can't find any pre-packaged ones in fedora (bad search
criteria?) but have seen ntop, ipband, and iptraf mentioned on the
web...

Thanks

[Ben Russo]

nosp wrote:
> Anyone recommend a command-line network bandwidth tool they use on
> fedora?  I'm talking about something to show MB/sec across the local
> machine's network interface(s), and perhaps more (breakdown by protocol,
> etc.).  I can't find any pre-packaged ones in fedora (bad search
> criteria?) but have seen ntop, ipband, and iptraf mentioned on the
> web...

iptraf

On Mon, Nov 03, 2003 at 01:10:51AM +0000, nosp wrote:
> Anyone recommend a command-line network bandwidth tool they use on
> fedora?  I'm talking about something to show MB/sec across the local
> machine's network interface(s), and perhaps more (breakdown by protocol,
> etc.).  I can't find any pre-packaged ones in fedora (bad search
> criteria?) but have seen ntop, ipband, and iptraf mentioned on the
> web...
>
> Thanks

ntop will do more than you want. It will give you the cumulative
bandwidth on your whole network. Instantaneous bandwidth is more
problematic. But if you run it only for short time it may work.

[Razvan Corneliu C.R. "d3vi1" VILT]

On Mon, 2003-11-03 at 03:10, nosp wrote:
> Anyone recommend a command-line network bandwidth tool they use on
> fedora?  I'm talking about something to show MB/sec across the local
> machine's network interface(s), and perhaps more (breakdown by protocol,
> etc.).  I can't find any pre-packaged ones in fedora (bad search
> criteria?) but have seen ntop, ipband, and iptraf mentioned on the
> web...

Have you tried netrate (python) by Alex Popa???
I've attached it to this message...
> Thanks
>
> --
> fedora-list mailing list
> [e-mail]
> http://www.redhat.com/mailman/listinfo/fedora-list

---BEGIN-OF-CODE---

#!/usr/bin/python

# netrate - a program to "graphically" show on a linux console
# the transfer rate on each interface
# also tested on rxvt

# it will display the transfer rate for the last second (coming soon),
# and the transfer rate for the last SECONDS seconds.
#

NUM_SAMPLES=20			# number of samples per second
NUM_SECONDS=5			# number of seconds
MIN_RATE=1024.0			# max_rate does not go below this value

# terminal settings
TERM_HOME='\x1b[H'
TERM_CLR_EOL='\x1b[K'
TERM_CLR_SCREEN='\x1b[J'
TERM_IN_COLOR='\x1b[41m'		# red
TERM_OUT_COLOR='\x1b[42m'		# green
TERM_NORMAL_COLOR='\x1b[m'		# no attributes

TERM_WIDTH=80

from string import split
from time import time,sleep
from sys import stdin,stdout,argv,exit
from getopt import getopt

# help
def help():
    print "Usage:\n\t%s -h\n"%argv[0]
    print "\t%s [-w width] [-s seconds] [-n num_samples]\n"%argv[0]
    exit()

# main
options,junk=getopt(argv[1:],"hw:s:n:")
del junk
for i in options:
    if(i[0]=='-h'):
        help()
    if(i[0]=='-w'):
        try:
            TERM_WIDTH=int(i[1])
        except:
            help()
    if(i[0]=='-s'):
        try:
            NUM_SECONDS=int(i[1])
        except:
            help()
    if(i[0]=='-n'):
        try:
            NUM_SAMPLES=int(i[1])
        except:
            help()
del options

delay=1.0/NUM_SAMPLES

statfile=open('/proc/net/dev','r')
# first get the current status...
tmp=statfile.readlines()
statfile.close()
del statfile
tmp=tmp[2:]
num_interfaces=len(tmp)
interfaces=[0,]*num_interfaces
initial_in=[]
initial_out=[]
max_rate=MIN_RATE

for i in range(num_interfaces):
    tokens=split(tmp[i][7:])
    interfaces[i]=split(tmp[i][:6])[0]
    initial_in.append(float(tokens[0]))
    initial_out.append(float(tokens[8]))

total=NUM_SAMPLES*NUM_SECONDS
times=[time()-1.0]*total
in_values=[]
out_values=[]

for i in range(total):
    in_values.append(initial_in[:]*num_interfaces)
    out_values.append(initial_out[:]*num_interfaces)

del initial_in,initial_out

current=0
last=1

# print samples[0][1][0][1]
# print interfaces

# I keep a circular buffer, so samples[current] is the current sample,
and 
# samples[last] is the earliest sample, which will be overwritten next
time

stdout.write(TERM_HOME+TERM_CLR_SCREEN)

while 1:
    statfile=open('/proc/net/dev')
    tmp=statfile.readlines()
    tmp=tmp[2:]
    statfile.close()

times[current]=time()
    for i in range(num_interfaces):
        tokens=split(tmp[i][7:])
    in_values[current][i]=float(tokens[0])
    out_values[current][i]=float(tokens[8])

sleep(delay)
    stdout.write(TERM_HOME)

stdout.write('Max Rate: %10.2f\n'%max_rate)
    for i in range(num_interfaces):
    time_diff=times[current]-times[last]
    stdout.write('%-10s: in:%10.2f bytes/sec   out:%10.2f bytes/sec'\
        %(interfaces[i],\
        (in_values[current][i]-in_values[last][i])/time_diff,\
        (out_values[current][i]-out_values[last][i])/time_diff))
    stdout.write(TERM_CLR_EOL+'\n')
    in_rate=(in_values[current][i]-in_values[last][i])/time_diff
    out_rate=(out_values[current][i]-out_values[last][i])/time_diff
    max_rate=max(in_rate,out_rate,max_rate)
    stdout.write(TERM_IN_COLOR+(' '*int(TERM_WIDTH*in_rate/max_rate))\
        +TERM_NORMAL_COLOR+TERM_CLR_EOL+'\n')
    stdout.write(TERM_OUT_COLOR+(' '*int(TERM_WIDTH*out_rate/max_rate))\
        +TERM_NORMAL_COLOR+TERM_CLR_EOL+'\n')
    stdout.flush()
    current=current+1
    last=last+1
    if(current==total):
    current=0
    max_rate=max(max_rate*0.90,MIN_RATE)
    else:
    if(last==total):
        last=0

---END-OF-CODE

[Gavin Henry]

On Mon, 03 Nov 2003 18:49:50 +0200
"Razvan Corneliu C.R. "d3vi1" VILT"  wrote:
> On Mon, 2003-11-03 at 03:10, nosp wrote:
> > Anyone recommend a command-line network bandwidth tool they use on
> > fedora?  I'm talking about something to show MB/sec across the local
> > machine's network interface(s), and perhaps more (breakdown by protocol,
> > etc.).  I can't find any pre-packaged ones in fedora (bad search
> > criteria?) but have seen ntop, ipband, and iptraf mentioned on the
> > web...
>
> Have you tried netrate (python) by Alex Popa???
> I've attached it to this message...
> > Thanks

iptraf is the best.

[Razvan Corneliu C.R. "d3vi1" VILT]

On Mon, 2003-11-03 at 18:54, Gavin Henry wrote:
(...)
> iptraf is the best.

I agree, but considering what was requested, netrate was more suitable
for the job. He stated that he already tried iptraf, ntop and ipband.