North American Network Operators Group|
Date Prev | Date Next |
Date Index |
Thread Index |
Author Index |
Re: best effort has problems
- From: Matthew Crocker
- Date: Sat May 29 14:28:29 2004
The PSTN does guarantee a certain service level, latency, call
The PSTN doesn't offer guaranteed end-to-end transmission, and
certainly statmuxes based on expected load. Looks like similar
Latency & Jitter are very important when dealing with sound & video. Or
anything realtime for that matter. The Internet isn't just HTTP, NNTP,
SMTP any more.
Perhaps you refer to latency. Most people don't care as long as
HTTP and POP3 latency is "good enough" -- and server response
time is often a substantial consideration. SMTP really isn't
picky about latency or jitter.
Maybe you mean packet loss. Most everyone here can recall the
days of 30% packet loss across congested MAE FDDI fabric, but
that went away what seems like eons ago.
I remember quite a bit of packet loss when the last series of worms hit