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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: Clearwire May Block VoIP Competitors
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Robert Bonomi wrote: |>From [email protected] Sat Mar 26 12:37:15 2005 |>Date: Sat, 26 Mar 2005 13:35:31 -0500 |>From: Eric Gauthier <[email protected]> |>To: "Fergie (Paul Ferguson)" <[email protected]> |>Cc: [email protected] |>Subject: Re: Clearwire May Block VoIP Competitors |> |> |> |>>http://www.advancedippipeline.com/news/159905772 |>> |> |>"...In what the company claims is an effort to preserve the performance |> of its pre-standard WiMAX network, Clearwire says it reserves the right |> to prohibit the use of a wide range of bandwidth-hungry applications, a |> list that apparently includes VoIP as well as the uploading or |> downloading of streaming video or audio, and high-traffic Web site |> hosting." |> |>Hrm... Isn't a VoIP call realtively low bandwidth? | | | "*ALL* things are relative." <grin> | |> I haven't studied |>this, but Vonage's site seems to imply that the maximum data rate is 90Kbps |>(http://www.vonage.com/help_knowledgeBase_article.php?article=190). I |>typically see speeds greater than this from my web browser... | | | There's a big difference. web browser activity is typically *very* bursty. | 'Average' data rate for a any single user is probably in the range of 1%-3% | of the burst peaks. | | VoIP, on the other hand, has an "average" utilization that approximates 50% | of the burst rate. In _both directions. | | I suspect that that latter factor is a fair part of the "problem". That | the cable company has allocated fairly limited bandwidth for the 'upstream' | direction (from the customer to the head-end). That that 'available' | bandwidth is *grossly* over-subscribed, on the "presumption" that traffic | in that direction would generally be "small", and "infrequent". When those | assupmtions get violated, _everything_ goes to h*ll. <wry grin> | | Not just for 'he who' commits the violation, but everybody else who is | sharing that over-subscribed link. Well, Since I run an ISP that is very small time, has (at this time) only a single T1 upstream, all my "subscribers" are wireless clients, I guess if I have more than 2 subscribers, I am over subscribed? Hardly seems fair. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (GNU/Linux) iD8DBQFCR+o80STXFHxUucwRAt6lAJ9/khqQ0iFFCwReKleCYvsPLePGzwCfZGbd Tg8q8nyPcYZQSpXSD9hajbA= =wZfh -----END PGP SIGNATURE-----
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