perfSONAR User Q&A and Other Discussion

[Szymon Trocha <>]

W dniu 10.05.2017 o 18:00, Andreas Demetriou pisze:

Hi,

 

Just a question about the difference between ping and owping.

 

So if I have owamp running between two nodes (node A & B), Node A has opened an owamp seesion to Node B. Now node A is experiencing packet loss to Node B but return has no packet loss.

But when running a normal ping from node A to node B there is no packet.

 

What I’m trying to ask is; can you tell me why I’m seeing packet loss using owamp and no packet loss with just a normal ping?

 

Hi Andreas,

ping and owamp are two different tools. owamp uses a train of small and evenly spaced groupings of UDP (not ICMP) packets while default ping is a packet every second.  This may reveal a different network behaviour you observe.

regards,

-- 
Szymon Trocha

Poznań Supercomputing & Networking Center
Tel. +48 618582022 ::: http://noc.pcss.pl