[c-nsp] Cisco Pagent IOS

[luismi]

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El jue, 10-12-2009 a las 11:03 +0000, Phil Mayers escribió:
> Hansen, Ulrich Vestergaard B. (E R WP EN 342) wrote:
> > Can you recommend some good ones?
> > 
> > Freeware/Opensource is no requirement.
> > 
> > Testing req:
> > 
> > Http sessions
> > Tcp sessions
> > Udp strams
> > Multicast
> > Voice (QoS)
> 
> I mostly have used open source tools in the past; a brief rundown...
> 
> iperf is a nice simple tool; it does TCP and UDP including multicast, 
> and the UDP can be made to report jitter & loss in e.g. 1 second intervals.
> 
> rude and crude are pretty good for very low-level UDP testing, including 
> programmable traffic profiles. Don't be fooled by the fact they haven't 
> been updated in years - the problem is fundamentally no different:
> 
> http://rude.sourceforge.net/
> 
> There are about a zillion HTTP tools, but something simple like "ab" 
> might suffice.
> 
> If you're interested in multicast, "dbeacon" can be left running 
> indefinitely and generates nice web pages & delay, jitter & loss stats 
> including nice RRD graphs - e.g. http://external.net.ic.ac.uk/matrix
> 
> I've successfully used used iperf to load a link, then wireshark to 
> capture the VoIP traffic (SIP, RTP & RTCP) and dump out the RTCP stats. 
> It's also gained an RTP analyzer in the meantime, but I've never had 
> cause to use that.
> 
> The linux kernel has a in-built packet generator:
> 
> http://www.mjmwired.net/kernel/Documentation/networking/pktgen.txt
> 
> Google lists loads more e.g.
> 
> http://www.grid.unina.it/software/ITG/sdescr.php
> 
> 
> ...as well as commercial (and very pricey) products like Smartbits and 
> so forth.
> 
> It's a big field.
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