Hi, On Sep 11, 2005, at 12:52 AM, Richard A Steenbergen wrote:
This says that although there are 170k prefixes on the Internet, there are only 20k entities who actually need to announce IP space. There is only one explanation for such a large difference (8.5x) between these two numbers, namely that people who are announcing IP space need multiple blocks in order to accomodate their needs.
This is an interesting assertion. I thought the majority of announced prefixes was due to folks punching holes in their registry allocated blocks in order to do traffic engineering of one form of another (multi-homing being a form of traffic engineering). Can you point at the data which backs up your assertion (I'm not disputing it, just a curious)? Thanks, -drc