<div dir="ltr">Hi all,<br>Just a quick question. <br>What is the real difference between a TCP paris-traceroutes and an UDP paris-traceroute ?<br>How do the probes perform each of them? <br>Thanks,<br>Best regards, <br>Roderick<br>
<br>On 26.06.2014 13:13, Philip Homburg wrote:<br>> Hi Juan,<br>> <br>> On 2014/06/19 16:59 , Juan Antonio Cordero Fuertes wrote:<br>>> Not sure this is the right place to ask this... sorry if it is not.<br>
>><br>>> I'm trying to configure Paris-traceroute measurements, and it is not<br>>> clear for me what is the meaning of the /paris/ parameter. In<br>>> <a href="https://atlas.ripe.net/docs/udm/">https://atlas.ripe.net/docs/udm/</a> it is said that it corresponds, for<br>
>> values from 1 to 16, to "the number of variations to be used for a Paris<br>>> traceroute <<a href="http://www.paris-traceroute.net/">http://www.paris-traceroute.net/</a>>". What is this? Does it<br>
>> correspond to the number of initial probes to be used by<br>>> paris-traceroute? I am unable to figure it out from the RIPE Atlas<br>>> docs... any indication would be appreciated.<br>> <br>> Paris-traceroute tries to make sure that all packets of a traceroute<br>
> take the same route through a load balancer. This in contrast to<br>> traditional traceroute where packets from different hops typically take<br>> different routes when load balancers are involved.<br>> <br>
> However, in the case of paris-traceroute it is still interesting to find<br>> out if there are multiple routes or not. For this reason, the traceroute<br>> measurement creates different variations that may take a different route.<br>
> <br>> Each interval, it will try one variation. So if you select 16 variations<br>> then it will take 16 intervals before you get back to the first one.<br>> <br>> Philip<br><br></div>