From: Howard C. Berkowitz (hcb@gettcomm.com)
Date: Wed May 05 2004 - 17:04:10 GMT-3
At 3:41 PM -0400 5/5/04, Kenneth Wygand wrote:
>Is 802.1p just the ISO standard nomenclature for the IP COS bits in an
>802.1q frame? In other words, if a question says "make sure to use
>802.1p for QoS" or "make sure to set high priority with 802.1p", does
>this just mean make sure to set the COS bits within an 802.1q frame?
>
>
>
>Sorry if this seems like a basic question, but I can't find any
>documentation that specifically solidifies this concept. I just want to
>make sure that I completely understand what is implied when a
>requirement is presented to employ 802.1p.
Pretty much. At one point, 802.1p and 802.1q were separate standards,
both using the same field for EITHER QoS or VLAN marking. It became
obvious that there would be requirements to do both at the same time,
so the final version of .q included .p.
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