perfSONAR User Q&A and Other Discussion

[Roberto Carna <>]

Dear Andy, thanks for your response.

So now I feel good, time to test my setup.

Regards !!!
El mié., 29 ago. 2018 a las 16:41, Andrew Lake 
(<>)
 escribió:
>
> Hi Roberto,
>
> It sounds like you have a perfectly reasonable setup. That warning displays 
> anytime you have both throughput and latency tests on the same host. The 
> message is not very smart and doesn't look at things like interfaces used, 
> etc.  You can safely ignore the warning. Running them out separate 
> interfaces is the key otherwise you are likely to see loss artifacts in 
> your OWAMP results as they compute for bandwidth resources on the 
> interface. Even then, if it's your only option is not the worst thing to 
> do, just something of which to be aware. It sounds like you have things 
> separated and should be in good shape.
>
> Thanks,
> Andy
>
> On Wed, Aug 29, 2018 at 10:51 AM, Roberto Carna 
> <>
>  wrote:
>>
>> Dear, I've just configured a perfSONAR server for client usage.
>>
>> I put tow interfaces in the same network segment, and I've added these
>> lines in /etc/sysctl.conf in order to avoid ARP conflicts with both
>> interfaces:
>>
>> net.ipv4.conf.all.arp_ignore=1
>> net.ipv4.conf.all.arp_announce=2
>> net.ipv4.conf.default.arp_filter=1
>> net.ipv4.conf.all.arp_filter=1
>>
>> After that I configured two tests selecting different interfaces:
>>
>> 1- Throughput against albq-pt1.es.net server, selecting eth0
>> 2- One-way Latency against aofa-owamp.es.net server, selecting eth1
>>
>> After saving te tests configuration, I get this warning in the
>> perfSONAR web interface:
>>
>> This host is configured with both bandwidth and one-way latency tests.
>> Bandwidth tests can interfere with one-way latency tests.
>>
>> What is the reason for this warning? Because I have two interfaces.
>>
>> Pleae can you help me ?
>>
>> Thanks a lot, regards !!!
>>
>> --
>> To unsubscribe from this list: 
>> https://lists.internet2.edu/sympa/signoff/perfsonar-user
>>
>