nanog mailing list archives
Re: Network end users to pull down 2 gigabytes a day, continuously?
From: Marshall Eubanks <tme () multicasttech com>
Date: Wed, 10 Jan 2007 05:56:27 -0500
On Jan 10, 2007, at 5:42 AM, Mikael Abrahamsson wrote:
On Tue, 9 Jan 2007, Valdis.Kletnieks () vt edu wrote:between handling 30K unicast streams, and 30K multicast streams that each have only one or at most 2-3 viewers?My opinion on the downside of video multicast is that if you want it realtime your SLA figures on acceptable packet loss goes down from fractions of a percent into the thousands of a percent, at least with current implementations of video.
Actually, this is true with unicast as well.This can (I think) largely be handled by a fairly moderate amount of Forward Error Correction.
Regards Marshall
Imagine internet multicast and having customers complain about bad video quality and trying to chase down that last 1/100000 packet loss that makes peoples video pixelate every 20-30 minutes, and the video stream doesn't even originate in your network?For multicast video to be easier to implement we need more robust video codecs that can handle jitter and packet loss that are currently present in networks and handled acceptably by TCP for unicast.-- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- Re: Network end users to pull down 2 gigabytes a day, continuously?, (continued)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Andy Davidson (Jan 15)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Michal Krsek (Jan 15)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Joe Abley (Jan 15)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Gian Constantine (Jan 15)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Richard Naylor (Jan 15)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Gian Constantine (Jan 15)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Peter Corlett (Jan 16)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Marshall Eubanks (Jan 12)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Marshall Eubanks (Jan 13)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Mikael Abrahamsson (Jan 10)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Marshall Eubanks (Jan 10)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Petri Helenius (Jan 10)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Gian Constantine (Jan 10)
- RE: Network end users to pull down 2 gigabytes a day, continuously? Bora Akyol (Jan 09)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Simon Lockhart (Jan 09)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Gian Constantine (Jan 09)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Petri Helenius (Jan 21)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Gian Constantine (Jan 21)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Leo Vegoda (Jan 09)
- What comes AFTER YouTube? Michael . Dillon (Jan 09)
- Re: Network end users to pull down 2 gigabytes a day, continuously? Simon Lyall (Jan 08)