Re: [AVT] RE: I-D ACTION:draft-ietf-avt-hc-over-mpls-protocol-03.txt

[Colin Perkins <csp at csperkins.org>]

Jerry, All,

On 15 Feb 2006, at 13:11, Ash, Gerald R ((Jerry)), ALABS wrote:
> Please review and comment on the updated draft "Protocol Extensions  
> for
> Header Compression over MPLS"
> (http://www.ietf.org/internet-drafts/draft-ietf-avt-hc-over-mpls- 
> protoco
> l-03.txt).
>
> The updates are based primarily on comments from Colin Perkins, see
> http://www1.ietf.org/mail-archive/web/avt/current/msg06257.html.
>
> The main changes include the following:
>
> 1. Updated terminology Section 2.
> 2. Revised and expanded introductory material in Section 3 'Header
> Compression over MPLS Protocol Overview' for clarity.
> 3. Revised and expanded Section 4 'Protocol Specifications' for  
> clarity.
> 4. Provided a complete worked example in Section 5 of pseudowire setup
> and header compression negotiation.
>
> Once again, please review and comment on the updated draft.

The new text helps significantly - the draft is now a lot more  
readable, and the details seem better specified. Some minor comments:

1) I found the 2nd paragraph of section 4 to be less than clearly  
phrased. Perhaps "Many HC flows (maybe several hundred, depending on  
the environment) should share a single PW label, rather than  
assigning a different PW label to each flow"?

2) There seems very little mention of HC data packets. I'd like to  
see more detail in the example and in the text explaining how the  
actual header compressed data is encapsulated.

3) The security considerations section should perhaps also point to  
the security considerations of the HC protocols too?

4) What are the procedures for registering new header compression  
types with IANA? If the [IANA] draft covers this, then section 8  
needs to include a statement to the effect that details are there.  
Otherwise, section 8 should give guidance to IANA.

Colin

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