[c-nsp] QoS with Voice and Video

Mikael Abrahamsson swmike at swm.pp.se
Wed Jan 28 02:57:15 EST 2009


On Wed, 28 Jan 2009, Pelle wrote:

> That depends on the type of video, is it video conferencing (IP/VC) or 
> streaming video (IP/TV)? IP/VC are interactive video, and have more or 
> less the same requirements on latency, jitter and loss as VoIP. IP/TV on 
> the other hand can handle more latency, jitter and loss.

I am of another opinion. I don't believe in putting bursty traffic into 
LLQ. LLQ should be used for deterministic traffic (ie 20 pps VOIP or 
equivalent broadcast video with basically fixed pps and bw/s).

Some platforms drop packets when it's over the prio limit and to protect 
from starvation of other classes I recommend putting a policer on the 
priority class anyway.

-- 
Mikael Abrahamsson    email: swmike at swm.pp.se


More information about the cisco-nsp mailing list