The draft uses RFC1918 address space as there are only three(3) IPv4 blocks
made available by RFC 5737 192.0.2.0/24 (TEST-NET-1), 198.51.100.0/24
(TEST-NET-2), and 203.0.113.0/24 (TEST-NET-3). Given that the key part of
the use cases really revolves around the prefix length and MaxLen - the bits
that make up the address part are meaningless.

So if we were to construct the use cases around /24s, and then
sub-allocate/assign /25's and /26's in the document, I posit the document
would be less meaningful to a reader. (I don't see too many cases of /26's
in BGP, yes from time to time, but not in numbers and not routinely)

I feel more comfortable saying that using 10/8 provides deeper and more
meaningful examples.

As for the ASNs, I originally started writing the draft using ASNs from
RFC5398, however a few ASNs from outside the range 64496 - 64511 crept in.
They can be cleaned up easily enough without having to rejig the document.

There are no use cases using IPv6 and its documentation prefix from RFC3849.
A quick discussion between authors wayback suggested a KISS principle.

Cheers
Terry


On 22/12/11 1:32 PM, "Randy Bush" <[email protected]> wrote:

>> And why not use the documentation prefix(es) and documentation AS(es)
>> in this draft. rather than 10/8 etc. That's what they are there for.
> 
> the draft in $subject uses 10/8.  i think sandy was pointing out that
> the ips and asns in rfc 5737 might be more appropriate.  is the latter
> what you mean by "documentation xxx?"
> 
> so what is it you are suggesting?  i suspect you are agreeing with sandy
> but can not parse.  my error, likely, too much good theater and food.
> 
> randy
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