[Wg-ipv6-guide] (ToC-9) Subsequent Allocations

[Akira Nakagawa <akira@pwd.ad.jp>]

All,

I wrote down ToC-9 as an example. There may be a lot of points to change.
I'd like all of you to give me(us) any comment and any advice, then I'll
revise it.
After completing this ToC-9, I think we can easily tackle with other
ToCs.

Akira


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9 Subsequent Allocations

An example of a typical ISP.

  (1) Initial allocation
    A typical ISP receives /32 that is 65,536 * /48s as an initial
    allocation.
    If this ISP allocates or assigns 7,132 * /48s to it's customers and
    its POPs, this ISP has a right of the second ( subsequent )
    allocation.
    
    7,132 is from the HD-Ratio table ( Appendix A )
    
    
  (2) Second allocation
    This ISP receives additional /32 from an adjacent address block as
    the second allocation.  Now, this ISP has one /31 address block.
    If this ISP allocates or assigns 12,417 * /48s including the
    previous 7,132 * /48s to it's customers and its POPs, this ISP has a
    right of the third ( subsequent ) allocation.

    12,417 is from the HD-Ratio table ( Appendix A )
    


An RIR reserves 8 * /32 address blocks for each organization. One
organization can expand it's block at the maximum of /29 that is each
organization can be allocated for four times including the initial
allocation.

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-- 
Akira Nakagawa <akira@pwd.ad.jp>