Re: [rrg] More abbreviation expansions

  > I have always understood PA to mean Provider Aggregatable
  > or Provider Aggregated (which is of course only possible
  > because they are assigned by the provider who will perform
  > the aggregation).
  > 
  > In terms of history, I have in my archive a note drafted
  > in 1995 by Daniel Karrenberg at RIPE, entitled
  > "Provider Independent vs Provider Aggregatable Address Space"
  > (sent to nanog@merit.edu, cidrd@iepg.org, IANA@isi.edu and
  > local-ir@ripe.net on 17 May 1995).
  > 
  > "provider assign[ed]" also pops up in my archive from the same
  > era, but "aggregatable" seems to be the more common usage
  > (46 vs 18 hits in my archive).
I'm also used to expand the "A" to "Aggregatable" (thanks for the supporting
stats:-)

I'd prefer sticking with that interpretation:
- "aggregation" seems to be much more the core concept that is of interest
  while "assigned" seems more coincidental
- also note that it happens all the time that by (change of) policy
  provider assigned address space is turned into PI - unfortunately :-(

It does not look like a good idea to dilute the "routing semantics" of PA
this way and creating the need for another term that precisely captures
the ability to aggregrate.

  > Regards
  >    Brian Carpenter
  > 
  > On 2010-02-27 14:41, Tony Li wrote:
  > > Hi all,
  > > 
  > > I've received the following proposed text:
  > > 
  > > PA - Provider Assigned: Addresses which cannot be 'taken with you' when a
  > > site moves to a different location on the network connectivity
  > > structure; usually assigned by a service provider (hence the name).
s/\(.*\)//
add (or something similar):
Global routing of a PA block usually can be supported by a route for just
the aggregate prefix (hence the name).

  > > PI - Provider Independent: Addresses associated with a site and which mov
e
> with it when it moves to a different location on the network connectivity
  > > structure; independent of any service provider (hence the name).
  > > 
  > > Any objections?
  > > 
  > > Tony
  > > 
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  > > rrg@irtf.org
  > > http://www.irtf.org/mailman/listinfo/rrg
  > > 
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Ruediger Volk