On Fri, Aug 24, 2001 at 07:33:50PM -0400, Leo Bicknell wrote:
And don't forget, if they had asked for address space back in 1988-1990 they would be announcing a /16, and using a /24 of it.
I had a much bigger email I postponed to see what happened in this thread, that was part of it. It also included IANA's allocation to themselves in the 192.0/16 (RESERVED) space.. It would be interesting to see what would have happened if they had allocated and annouced a /24 from the 64/8 space. Would Verio be unable to reach them? (You can substitute Verio for any other heavily filtering provider) What makes joe blow with his ancient /16 that he's using 7 hosts on better then a site that wants to NOT waste space annoucing a /24 that is invisible to part of the Internet due to filters.
The average routing announcement has gotten smaller as a result of tighter allocation policies. The use 80% rule and all that.
Which is valid.. Now on the other hand by saying "and if it's smaller then a /20 you will be filtered" you cause undue pressure on people to "spin" their designs in ways to show that they can use a /20 and get the allocation from ARIN directly. These two arguments cause some issues with eachother.
Of course all the growth is in small prefixes. You can't get a large prefix these days, and if you get a smaller one that should be aggregatable to a larger prefix next time you ask the likelyhood it will still be there when you ask for it is low.
The whole problem seems to me to be a lack of a micro-allocation policy, and an agreement from providers that they will not filter that space. -- ------------------------------------------------------------------------------- : Steven Noble / Network Janitor / Be free my soul and leave this world alone : : My views = My views != The views of any of my past or present employers : -------------------------------------------------------------------------------