Re: [16NG] Re: traffic classification

JinHyeock Choi wrote:
> Dear Alex
> 
>> JinHyeock, thanks for clarification.  I think it confirms my
>> expectations of how 802.16spec intends IPv6CS classifiers to work: by
>> looking at IPv6 headers.
>>
>> Assume an IPv6 packet put by the SS's IPv6 stack on the 802.16MAC has
>> the Traffic Class equal to DSCP AF11 '001010' (rfc2597 - Class1 with Low
>> Drop Precedence).
>>
>> _How_ does this convert into a service flow?
> 
> DSCP value doesn't decide a service flow by itself. Usually CID is
> determined in combination with the other values such as source/
> destination addresses.
> 
>> More specifically, what is the priority assigned to this service flow?
>> ("traffic priority": sec 11.13.5 of 802.16-2004).  This encoding has
>> values from 0 to 7 with higher numbers indicating higher priority.  If
>> not the "traffic priority" value then what are the other service
>> flow-specific constants that this IPv6 DSCP (diffserv codepoint)
>> converts into.
> 
> As of my knowledge, there is no rule to convert IPv6 DSCP (diffserv
> codepoint) into 802.16 QoS parameter in a deterministic way. I
> understand its up to the implementation & policy.

Isn't this an interoperability issue? (between one's phone to one 
other's base station).

Alex

_______________________________________________
16NG mailing list
16NG@ietf.org
https://www1.ietf.org/mailman/listinfo/16ng