Re: [asterisk-users] how to find out one way latency

2011-12-01 Thread Hans Witvliet
On Wed, 2011-11-30 at 20:03 -0500, Adam Moffett wrote: You can make a pretty good prediction with ping. sudo ping -f -i .02 -s 180 -Q 0xb8 [ip] gives a tolerable simulation of voip traffic. let it run for awhile, then press ctrl+c and see how many packets were dropped and also check the

[asterisk-users] how to find out one way latency

2011-11-30 Thread NaJIm
Hi All, How can I find out One way latency from my PBX to my SIP Trunk Provider. My SIP provider recommends a One way latency of 100ms for good Voice quality. Ping request to their IP Address gives me a response in approx. 260ms. Will that be good enough for a SIP Trunk. Please help. We are

Re: [asterisk-users] how to find out one way latency

2011-11-30 Thread Ruben Rögels
Am 30.11.2011 21:47, schrieb NaJIm: Hi All, How can I find out One way latency from my PBX to my SIP Trunk Provider. My SIP provider recommends a One way latency of 100ms for good Voice quality. Ping request to their IP Address gives me a response in approx. 260ms. Will that be good enough

Re: [asterisk-users] how to find out one way latency

2011-11-30 Thread Steve Edwards
Am 30.11.2011 21:47, schrieb NaJIm: Ping request to their IP Address gives me a response in approx. 260ms. Will that be good enough for a SIP Trunk. On Wed, 30 Nov 2011, Ruben Rögels wrote: a ping is the time a packet needs for travelling to a destination and back to you. So the one way

Re: [asterisk-users] how to find out one way latency

2011-11-30 Thread NaJIm
Thank you Ruben. Is there anything else that I should be concerned about when looking for a SIP provider. ?? Regards, Najim. On Thu, Dec 1, 2011 at 2:34 AM, Ruben Rögels ruben.roeg...@jumping-frog.org wrote: Am 30.11.2011 21:47, schrieb NaJIm: Hi All, How can I find out One way

Re: [asterisk-users] how to find out one way latency

2011-11-30 Thread NaJIm
Does that mean I can expect lesser delays with my Voice packets ?? That would be even better. Regards, Najim On Thu, Dec 1, 2011 at 3:42 AM, Steve Edwards asterisk@sedwards.comwrote: Am 30.11.2011 21:47, schrieb NaJIm: Ping request to their IP Address gives me a response in approx.

Re: [asterisk-users] how to find out one way latency

2011-11-30 Thread NaJIm
Is there anything else that I should be concerned about, when looking to signup for a SIP provider. ?? Regards, Najim On Thu, Dec 1, 2011 at 4:49 AM, NaJIm getna...@gmail.com wrote: Does that mean I can expect lesser delays with my Voice packets ?? That would be even better. Regards, Najim

Re: [asterisk-users] how to find out one way latency

2011-11-30 Thread Hans Witvliet
On Thu, 2011-12-01 at 04:52 +0530, NaJIm wrote: Is there anything else that I should be concerned about, when looking to signup for a SIP provider. ?? Latency is important, but packet loss also, likewise packet re-ordering. hw --

Re: [asterisk-users] how to find out one way latency

2011-11-30 Thread NaJIm
My ping requests show 0% packet loss. How do we find out packet re-ordering.?? Najim. On Thu, Dec 1, 2011 at 5:18 AM, Hans Witvliet aster...@a-domani.nl wrote: On Thu, 2011-12-01 at 04:52 +0530, NaJIm wrote: Is there anything else that I should be concerned about, when looking to signup

Re: [asterisk-users] how to find out one way latency

2011-11-30 Thread Adam Moffett
a ping is the time a packet needs for travelling to a destination and back to you. So the one way latency you are refering to, should be half the time your ping took. In your case this will be 130ms, I would say this is still reasonable. I am probably splitting hairs, but that's not always

Re: [asterisk-users] how to find out one way latency

2011-11-30 Thread NaJIm
WOW.. That is the most complicated Ping I have ever seen.. :) This is the result I got. # ping -f -i .02 -s 180 -Q 0xb8 xx.xx.xx.xx *PING xx.xx.xx.xx (xx.xx.xx.xx) 180(208) bytes of data. . --- xx.xx.xx.xx ping statistics --- 15338 packets transmitted, 15325 received, 0% packet loss,

Re: [asterisk-users] how to find out one way latency

2011-11-30 Thread Adam Moffett
I would bet you get about the same result with the two providers.all else being equal. mdev (mean deviation) is a simple way to measure jitter, and you have to put in context with the min/avg/max numbers. If I had 7ms of deviation and average times of 4ms, that would be an issue because