nanog mailing list archives
Re: best effort has problems
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Sat, 29 May 2004 21:35:25 +0200 (CEST)
On Sat, 29 May 2004, Edward B. Dreger wrote:
Nitpicking: Latency isn't that important with unidirectional communication. However, VoIP users seem reasonably happy with current latency and jitter -- and the Internet still is _largely_ xxTP, anyway... particularly if one ignores peer-to-peer file- swapping programs.
Latency is fine for VOIP as long as you dont interact with the PSTN network, if you want to interact with PSTN then you need echo cancellation if you have high latency on the IP part. Most VOIP applications can handle 40ms jitter, so that's normally no problem unless your local access is full. Packet loss is normally no problem for VOIP if you use a proper (non-telco developed) codec. VOIP is actually better off with high packet loss and low jitter than the other way around (throwing off the old truth that core equipment should have lots of buffers). -- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- best effort has problems Gordon Cook (May 28)
- Re: best effort has problems Iljitsch van Beijnum (May 28)
- Re: best effort has problems Edward B. Dreger (May 29)
- Re: best effort has problems Matthew Crocker (May 29)
- Re: best effort has problems Edward B. Dreger (May 29)
- Re: best effort has problems Mikael Abrahamsson (May 29)
- Re: best effort has problems Matthew Crocker (May 29)