[ovirt-devel] Default MAC address range

[Yedidyah Bar David]

https://bugzilla.redhat.com/show_bug.cgi?id=1516445

On Wed, Nov 22, 2017 at 5:48 PM, Yaniv Lavi <ylavi at redhat.com> wrote:

> Can you please open an RFE for us to review?
>
> YANIV LAVI
>
> SENIOR TECHNICAL PRODUCT MANAGER
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> On Sun, Nov 19, 2017 at 12:37 PM, Yedidyah Bar David <didi at redhat.com>
> wrote:
>
>> Hi all,
>>
>> The default range went through several changes during the lifetime of
>> the project - from being small and constant until 3.2, to small and
>> random in 3.3 until 3.5, back to fixed and small in 3.6, slightly
>> enlarged (to 1024 addresses) in current master.
>>
>> In all cases, the address range was taken from the IANA-assigned range
>> 001A4A of Qumranet (now Red Hat) [1].
>>
>> I suggest to:
>>
>> 1. Default to a random range again
>> - So that two or (a few) more setups using the same network segment
>> are less likely to use the same range
>>
>> 2. One in the locally-administered address range [2]
>> - So that we have a larger address range
>>
>> 3. Make it a bit larger, say 65000 addresses
>> - So that admins do not have to handle this manually, even for large
>> setups, unless they have specific needs
>>
>> If there is objection to (2.), we can still have the others - among
>> the 24 bits in the 001A4A prefix range, choose among the first 8 a
>> random value during engine-setup, and have the pool of size 16 bits.
>>
>> Comments/ideas/etc. are welcome.
>>
>> Best regards,
>>
>> [1] https://regauth.standards.ieee.org/standards-ra-web/pub/view.html
>> [2] https://en.wikipedia.org/wiki/MAC_address#Universal_vs._local
>> --
>> Didi
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>> Devel at ovirt.org
>> http://lists.ovirt.org/mailman/listinfo/devel
>>
>
>


-- 
Didi
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