Re: IID length text

[Fernando Gont <[e-mail]>]

On 01/16/2017 05:42 PM, Behcet Sarikaya wrote:
> On Mon, Jan 16, 2017 at 2:27 PM, Alexandre Petrescu
> <[e-mail]> wrote:
>> Le 14/01/2017 à 20:49, Brian E Carpenter a écrit :
>>>
>>> A modest suggestion:
>>>
>>> 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. In practice, this means that to guarantee
>>> interoperability
>>>    of SLAAC, a fixed length of Interface ID is necessary. For all
>>> currently
>>>    allocated unicast addresses, except those that start with the binary
>>>    value 000, that length is 64 bits. Note that this value is an arbitrary
>>>    choice and might be changed for some future allocation of unicast
>>> address
>>>    space. Background on the 64 bit boundary in IPv6 addresses can be found
>>>    in [RFC7421].
>>
>>
>> I agree with the change suggestion.  The new text and references are enough
>> motivation to clarify that that 64bit limit is an arbitrary choice and might
>> change in the future.
>>
> 
> 3GPP assigns 64 bit prefixes to each UE.
> Extended Unique Identifiers defined are EUI-48 and EUI-64.

What does a layer-2 EUI have to do with a layer-3 address?

-- 
Fernando Gont
SI6 Networks
e-mail: [e-mail]
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