Re: [SAM] draft-kolberg-sam-baseline-protocol-00

[Matthias Waehlisch <[e-mail]>]

Hi Gustavo,

  many thanks for your valuable feedback!

  Please see my reply inline.

On Wed, 7 Apr 2010, Gustavo Carneiro wrote:

> I am trying to understand draft-kolberg-sam-baseline-protocol-00
> 
> One thing that confuses me is in Sec. 5.  Group Management API.  
> First it says,
> 
> While native multicast is bound to IP addresses, ALM uses arbitrary 
> strings as multicast names, which will be mapped to the overlay 
> identifier space.
> 
> The aim of this API is to implement group-oriented data communication 
> independent of the underlying distribution technologies.
> 
> But then the API described is based on Address types, which are described
> as:
> 
> Address is any address structure suitable with respect to the 
> technology available at the host. This may be an IPv4 or an IPv6 
> address, or any overlay identifier.
> 
> So it seems that the Group Management API does not work with 
> high-level abstract identifiers, it already works with 
> transport-specific identifiers. 
>
  Yes, this is misleading presented in the current version. We updated 
this to mention explicit naming using the URI scheme with respect to 
draft-waehlisch-sam-common-api. However, this update has not been 
published yet, as we want to add some further extensions in the 
draft-kolberg-sam-baseline-protocol.

[...]

> And what is exactly the relationship between 
> draft-waehlisch-sam-common-api-02 and 
> draft-kolberg-sam-baseline-protocol-00.  They were published almost at 
> the same time (for the meeting?); are they competing proposals?
> 
  No, they are not competing proposals. From the perspective of 
draft-waehlisch-sam-common-api the baseline protocol is a special use 
case for the common API. In contrast, from the perspective of 
draft-kolberg-sam-baseline-protocol the common API fills the gap to 
develop hybrid group communication applications.


Thanks
  matthias


-- 
Matthias Waehlisch
.  FU Berlin, Inst. fuer Informatik, AG CST
.  Takustr. 9, D-14195 Berlin, Germany
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:. Also: http://inet.cpt.haw-hamburg.de .. http://www.link-lab.net