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Re: [AVT] Clock skew and RTP

We will have a tech report on this subject shortly. With commodity workstations, we have observed clock skew as high as 390 ppm. There is no IETF recommendation, since the IETF generally does not mandate certain performance levels for equipment.

Merhdad Abrishami wrote:
I also have a question related to this topic, for those who have looked into
the clock accuracy of various vendors. Since local clocks with higher
inaccuracy can contribute to the clock sckew problem, what is an acceptable
(commonly used) clock accuracy (for exmple 50 ppm), used by manufacturers of
Real-time streaming multimedia applications over IP (such as Voice over IP).
Is there an IETF recommendation in this regard?

Thanks,

Mehrdad Abrishami
Principle Engineer
LSI Logic
240-314-1642


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