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Posted by anoop on January 30, 2006, 3:14 am
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videoguy@nospam.com wrote:
>
> My first question is simple -- are lower numbers a "better" class of
> service, or are higher numbers better? I'm setting up this switch to
> support my Vonage connection, and I want to give the Vonage voice adapter
> priority service over my other traffic.
Usually higher numbers represent a higher priority and therefore
better service. This is certainly true with 802.1p where the priority
bits (now called the Priority Code Point), with the exception that
priority 1 which is "worse" than 0 to allow support for a "less
than best effort" class of service.
> Second Question -- This is all going to the Internet via a cable modem. Do
> I need to traffic shape the link between the switch and the cable modem?
> Presumably without traffic shaping, the packets would just get blasted out
> of the switch and queue up on the cable modem without the QoS doing much
> good.
Yes, it would make sense to shape the link from the switch
to the cable modem to a rate comparable to what the cable
modem will be transmitting the traffic to the service provider,
unless the cable modem itself supports some kind of priority
queueing.
Anoop
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