Re: connection test

I would not suggest wireshark as it depends hugely on the system that runs
wireshark and network connectivity.
There are various ways to test the performance, latency etc.,
- Hardware solutions like IXIA, smartbits etc.,
- custom scripts with hping2 etc.,
More tools (performance gets impacted by host)
Netperf: Easy to use tool that can measure unidirectional throughput and
end-to-end latency. Can test both TCP and UDP performance.
ttcp: Sockets-based benchmarking tool for measuring TCP and UDP
performance. First released for BSD in 1984 and there are now many
implementations available for most operating systems.
netpipe: Protocol independent performance tool that shows the results as
graphs. Nice tool that is very good at showing buffer problems.
iperf: Developed by NLANR as a modern alternative for measuring TCP and
UDP bandwidth performance.
netspec: More advanced tool that goes beyond simple point-to-point
testing. A daemon is started on clients that are involved in the testing
and are controlled by a central station. Besides full performance testing,
netspec can also emulate FTP, TELNET, VBR Video Traffic (MPEG,
Video-Teleconferencing), CBR Voice Traffic, and HTTP traffic (World Wide
Web traffic) on the application layer.

Thanks,
-Ravi Chunduru


> How about WireShark (http://www.wireshark.org/)?
>
> KJ (Ken) Salchow, Jr.  |  Manager, Technical Marketing
>
>
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On Behalf Of
> Miloska
> Sent: Tuesday, February 03, 2009 10:46 AM
> To: [email protected]
> Subject: [load balancing] connection test
>
> Hi Lads,
>
> I'd like to test my loadbalancer's connection creation speed with
> different setups (L4, L7, different number of real servers, etc).
>
> I'm wondering of you have any good method to test this.
>
> For example I'd like to test the TCP session creation delay and the
> delay to get an SMTP banner back. I'd like to create 1-10-100k
> connections and check how much time it took.
>
> I guess it's quite simple with nc or other simple command line tools
> from Linux, I just don't want to re-invent these tools :)
>
> Thanks,
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