FIOS

[Ted Manka]

Hi Tom,

Contract I have is 20m down 5m up...I am pretty consistently there with my
torrents, although I think they are shaping my upstream FTP traffic on 21.

More then you will ever want to know about jitter in relation to VOIP:

"Jitter is a variation in packet transit delay caused by queuing, contention
and serialization effects on the path through the network."

http://www.voiptroubleshooter.com/indepth/jittersources.html

--Ted

On 4/13/07, Tom Metro <blu at vl.com> wrote:
>
> Ted Manka wrote:
> > I have FIOS now with VOIP sunrocket...I have noticed some issues with
> latency.
> > Running a VOIP diagnostic my up and downstreams were high as per the
> spec of
> > the contract with FIOS...
>
> What does the contract specify?
>
>
> > ...but the jitter was in the trash can.
>
> With jitter being the variance in latency from packet to packet?
>
>
> > Also below are some ping times to some of the local universities VIA
> FIOS.
> > It would be interesting to see some ping times from other providers
> > (Comcast, Verizon DSL, RCN etc)
> >
> > --- mit.edu ping statistics ---
> > 11 packets transmitted, 11 packets received, 0% packet loss
> > round-trip min/avg/max = 17.3/19.5/20.8 ms
> >
> > --- bu.edu ping statistics ---
> > 10 packets transmitted, 10 packets received, 0% packet loss
> > round-trip min/avg/max = 16.4/17.3/17.6 ms
> >
> > --- hno-webprod.harvard.edu ping statistics ---
> > 11 packets transmitted, 11 packets received, 0% packet loss
> > round-trip min/avg/max = 20.0/20.2/20.4 ms
> >
> > --- brandies.edu ping statistics ---
> > 12 packets transmitted, 10 packets received, 16% packet loss
> > round-trip min/avg/max = 15.8/17.6/20.9 ms
> >
> > --- neu.edu ping statistics ---
> > 10 packets transmitted, 10 packets received, 0% packet loss
> > round-trip min/avg/max = 13.7/14.0/15.8 ms
>
> Here's what I see on a Covad DSL link:
>
> lex:~# foreach host (mit.edu bu.edu www.harvard.edu brandies.edu neu.edu
> www.cnet.com www.google.com)
> foreach? ping -qc 5 $host
>            foreach? end
> PING mit.edu (18.7.22.69): 56 data bytes
>
> --- mit.edu ping statistics ---
> 5 packets transmitted, 5 packets received, 0% packet loss
> round-trip min/avg/max = 34.0/34.9/36.2 ms
> PING bu.edu (128.197.27.7): 56 data bytes
>
> --- bu.edu ping statistics ---
> 5 packets transmitted, 5 packets received, 0% packet loss
> round-trip min/avg/max = 33.3/34.3/35.5 ms
> PING hno-webprod.harvard.edu (128.103.60.28): 56 data bytes
>
> --- hno-webprod.harvard.edu ping statistics ---
> 5 packets transmitted, 5 packets received, 0% packet loss
> round-trip min/avg/max = 34.1/34.7/35.8 ms
> PING brandies.edu (129.64.99.169): 56 data bytes
>
> --- brandies.edu ping statistics ---
> 5 packets transmitted, 5 packets received, 0% packet loss
> round-trip min/avg/max = 36.5/40.9/51.3 ms
> PING neu.edu (155.33.227.140): 56 data bytes
>
> --- neu.edu ping statistics ---
> 5 packets transmitted, 5 packets received, 0% packet loss
> round-trip min/avg/max = 24.0/24.7/25.2 ms
> PING c18-ssa-xw-lb.cnet.com (216.239.122.220): 56 data bytes
>
> --- c18-ssa-xw-lb.cnet.com ping statistics ---
> 5 packets transmitted, 5 packets received, 0% packet loss
> round-trip min/avg/max = 69.3/70.2/72.0 ms
> PING www.l.google.com (216.239.37.99): 56 data bytes
>
> --- www.l.google.com ping statistics ---
> 5 packets transmitted, 5 packets received, 0% packet loss
> round-trip min/avg/max = 34.2/35.3/36.7 ms
>
>
> Average seems to be around 35 ms.
>
>
> > Great post about verizon and FIOS.
>
> Thanks.
>
>   -Tom
>
> --
> Tom Metro
> Venture Logic, Newton, MA, USA
> "Enterprise solutions through open source."
> Professional Profile: http://tmetro.venturelogic.com/
>
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