Re: "Priority and QoS model"

It's easy to verify or compare the send and received TOS bits by
correlating them.
On Fri, 28 Jul 2017 at 22.10, Roman Shpount <roman@telurix.com> wrote:

> On Fri, Jul 28, 2017 at 2:51 PM, Cullen Jennings <fluffy@iii.ca> wrote:
>
>> Just as a stab in the dark on how to do this ...
>>
>> Perhaps a table that had many packet where received for each DSCP that
>> had been received in the last second. And a separate table for sent packets.
>>
>> Would something like that work ?
>>
>>
> I might be completely out of date on this but how would you get this
> information from underlying OS anywhere except Linux? I think this is the
> only OS that supports IP_RECVTOS and there is no way to get DSCP
> information from the received UDP packet on BSD, OSX, or Windows.
>
> I do not think anything will actually tell you that setting TOS was
> honored by the OS or underlying network equipment.
>
> Regards,
> _____________
>
> Roman Shpount
>
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