Re: wanted A tool to measure bandwidth....

Linux Advanced Routing and Traffic Control

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On Mon, May 23, 2005 at 10:31:30AM +1200, Simon Byrnand wrote:
> However one comment - reading byte counters from TC (assuming thats what it 
> does - I havn't studied it or installed it yet) for the purposes of billing 
> customer usage is not recommended, as the HTB docs specifically say that 
> they are not completely accurate due to rounding. (And we have also found 
> they are a bit inaccurate)
Sure, it's not for billing. But one can analyze HTB "feeling and
behaviour" with these scripts anyway. It's great if I can tell my customer
something like "yes, right you are, you are experiencing delays (up to 10
seconds BTW), and that's because your bandwidth exhausted; no, no, no
drops, just delaying..."

:-)

> Then in mrtg.cfg:
> 
> Target[CustomerName]: `/root/mrtg/bin/get-radiolink-use`
> 
> This is a simplified example that doesn't take into account more than one 
> customer. To scale up you would want the various scripts to be 
> automatically generated...
> 
> We find byte counting using ipchains/iptables to be very accurate, and no 
> SNMP is needed provided the byte counting is done on the same machine as 
> mrtg is run...
Once more: mrtg can deal with rrd bases, I believe you assume such setup,
dont you?-)

You can store rrd bases regularly and fetch the data with scripts.

ps. I like rrd bases and work with them directly very often, with no mrtg.
    As you can see :-) That's why py-htbstat uses py-rrdtool.

> 
> Regards,
> Simon

-- 
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        `    G.m-"^m`m'        Dmytro O. Redchuk

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