Re: draft-savola-multi6-asn-pi-01.txt

[Pekka Savola <pekkas@netcore.fi>]

On Wed, 25 Feb 2004, Iljitsch van Beijnum wrote:
> The trouble with large corporations is that they typically have many 
> offices. Now either all of those connect to the net individually, and 
> then having a single AS and a single block of address space is of 
> little use, 

Well, it could be of a lot of use.  But as noted before by Craig 
Huegen (at least), if using a single netblock, these corporations 
would have traffic engineering requirements.  If more specific routes 
aren't allowed for traffic engineering purposes, or advertising just a 
regional subset of address space, this is not enough for a solution.

An alternative mechanism, which I have stated earlier, is to 
"divide-and-conquer" even the larger enterprises: every branch which 
connects to ISPs has different addresses.  This will be pure hell for 
network admins if they have offices in e.g. 100 or 200 countries, but 
such is life, I guess... :)

Of course, almost all solutions have ignored these traffic engineering
considerations.

> or those offices are connected through a private network 
> that also carries internet traffic, in which case they are their own 
> ISP and they should qualify for an AS and address space like regular 
> ISPs. (The 200 customers within 2 years requirement might be slightly 
> problematic but there is push to lower this a bit anyway.)

IMHO, the RIR allocation policies do not allow an /32 for this 
specific case of "Enterprise network having its customers within the 
enterprise".

-- 
Pekka Savola                 "You each name yourselves king, yet the
Netcore Oy                    kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings