[AusNOG] Anyone know a good client side performance tool?

Reuben Farrelly reuben-ausnog at reub.net
Tue Jul 8 22:56:19 EST 2008



On 8/07/2008 10:15 PM, Tom Storey wrote:
> On 07/07/2008, at 5:28 PM, Edwin Groothuis wrote:
> 
>> that's only for Jitter, not for the rest of the things you
>> described
> 
> Cisco SLA monitors can do many many more things than just determine  
> response times and jitter by way of ICMP echo. They can be used to  
> perform DNS/HTTP/FTP queries etc, and some other generic operations.
> 
> http://www.cisco.com/en/US/docs/ios/12_4/ip_sla/configuration/guide/hsla_c.html 
>   has a list of supported operations, and their associated  
> configuration guides.
> 
> You might not be able to download a large file and record stats about  
> the speed it came down at etc, but something like that could be  
> knocked up with some scripts quite easily.

You can, actually, without any external scripts:

ip sla 1
   http get http://mirror.internode.on.net/pub/test/1meg.test cache disable
   tag Internode Mirror HTTP download speed
   frequency 600

Then poll the output result with SNMP (rttMonLatestRttOperCompletionTime.1) -
and it'll give you the time taken for the file to download (+ plug it into
Cacti/MRTG and plot it etc)

Reuben




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