Re: [Ieprep] Diffserv Code Point for Emergency calls

Hello Reinaldo,

> I read
> http://www.ietf.org/internet-drafts/draft-ietf-ieprep-framework-10.txt
> and was somewhat puzzled at section 4.1.2. I understand that the IETF
> wants to be conservative in standardizing new DSCP, but it seems to an
> emergency call DSCP would be accepted by the community (am I wrong?).

well, from my own take, I would say that the "community" is not  
against an emergency call DSCP per se, but rather awaits specific  
proposals with a cautious mindset.  Recall from that section 4.1.2  
that there is a need to define a behavior in addition to identifying  
a code point.  So if you want a code point of 1 or more bits for  
"emergency", what would be its defined forwarding behavior?

one such proposal, primarily aimed at MLPP, is called Multi-Level  
Expedited Forwarding (MLEF) and can be found at:
ftp://ftp.rfc-editor.org/in-notes/internet-drafts/draft-silverman- 
tsvwg-mlefphb-03.txt

I would also suggest reading a counter proposal that avoids defining  
a new DSCP:
ftp://ftp.rfc-editor.org/in-notes/internet-drafts/draft-ietf-tsvwg- 
mlpp-that-works-02.txt
you can dig around the TSVWG archives over the past 2 months for some  
comments on the draft.

-ken

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