Re: Updated IID length text

[Fernando Gont <[e-mail]>]

Hi, Brian,

On 01/18/2017 09:37 PM, Brian E Carpenter wrote:
> OK, after all that discussion, here is a revised proposal. There is
> nothing new here at all, IMHO; just clarification:
> 
> OLD
>    For all unicast addresses, except those that start with the binary
>    value 000, Interface IDs are required to be 64 bits long.  Background
>    on the 64 bit boundary in IPv6 addresses can be found in [RFC7421].
> 
> NEW
>    IPv6 routing is based on prefixes of any valid length up to 128 [BCP198].
>    For example, [RFC6164] standardises 127 bit prefixes on point-to-point
>    links. However, consistent use of Stateless Address Autoconfiguration
>    (SLAAC)[RFC4862] requires that all interfaces on a link use the same length
>    of Interface ID. To guarantee interoperability of SLAAC, a fixed length of
>    Interface ID is necessary. 

s/fixed/consistent/.

Thanks for your energy in this,
-- 
Fernando Gont
SI6 Networks
e-mail: [e-mail]
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