On Tue, Sep 25, 2001 at 09:11:17AM +0000, Mirjam Kuehne wrote: Hi Mir et al, Please below find my preliminary thoughts/comments on this document. [Aspirations preserved, so we can remember them later]
- The allocation criteria should be such that it is easy to obtain IPv6 address space.
- The size of the initial allocation should be large enough to allow flexibility in addressing infrastructure and customer sites.
1. to recognise existing infrastructure (both IPv4 and IPv6) where it exists and calculate IPv6 address needs based on existing networks.
2. to apply the slow start mechanism only for 'IPv6 only' networks without existing IPv4 infrastructure
3. to reduce the minimum allocation size for those IPv6 only networks (unless larger requirements are shown)
4. to measure the utilisation rate with the HD ratio rather than percentages
5. to make subsequent allocations when the HD ratio is reached
3.1. Case 1 - Existing IPv4 services
Additional policies may require the return of IPv4 address space to the RIR or upstream ISP, in the case the existing network is renumbered to the new IPv6 space in future.
Am I alone in wondering exactly what the scope of these additional policies may be? My concern is based on the fact that although existing v4 networks may well acquire v6 space, they are likely to need their v4 space for quite some years to come, and hence it would be unrealistic to require the return of all v4 address space. (Or maybe I misunderstand...)
4. Size of Initial Allocation
For new networks without existing infrastructure, it is proposed to establish a minimum allocation for IPv6 address space. It is suggested to keep the size of the initial allocation relatively small (a /35 or smaller) and to determine the size of subsequent allocations based on the utilisation rate of the initial allocation (this is called slow start mechanism). This will allow easy access to IPv6 allocations for newcomers. At the same time possible wastage of address space and routing table growth will be limited.
These v6 allocations are made from the RIR (ex TLA) space, correct? So, are we abandoning the model where only the biggest networks go to the RIRs for space, and everyone else goes to them? Niall -- Enigma Consulting Limited: Security, UNIX and telecommunications consultants. Address: Floor 2, 45 Dawson Street, Dublin 2, Ireland. http://www.enigma.ie/