North American Network Operators Group

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RE: Level3 Question

  • From: Susan Hares
  • Date: Sat Nov 12 12:49:10 2005


I had hands experience from EGP, BGP-2, BGP-3, BGP-4, and MP-BGP. 

Cost/Money/Operational Pain drive transitions.  

In EGP/BGP-2 it was 12-15 routers. In BGP-3/BGP thousands.  Now? I'll
let you estimate for Internet routers in the planet. 

Of course, I like you would like things to be orderly. 

Sue Hares

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of
Per Gregers Bilse
Sent: Friday, November 11, 2005 4:42 PM
To: [email protected]
Subject: Re: Level3 Question

On Nov 11,  1:14pm [email protected] wrote:
> The only way to get 32-bit AS number support deployed is to run out  
> of AS numbers in
> the 16 bit space.


  - When will the Internet deploy X?

  - Just before it's too late.

How many people on this list remember the transition from BGP3 to
BGP4 and CIDR?  This was, uhh, about 12 years ago.  Before that there
was an EGP to BGP transition, but that was less of an issue.

But history will repeat itself.  Not that I see any great evil in that
people are always busy, have always been.  It's a case of which
are most pressing, so, indeed, yes, the only way is to run out of the
existing resource.  Likewise for whatever will provide more address

  -- Per