On Wed, Feb 27, 2019 at 07:01:10PM +0100, Lorenzo Bianconi wrote:
> Select a random IPAM mac_prefix if it has not been provided by the user.
> With this patch the admin can avoid to configure mac_prefix in order to
> avoid L2 address collisions if multiple OVN deployments share the same
> broadcast domain.
> Remove MAC_ADDR_PREFIX definitions/occurrences since now mac_prefix is
> always provided to ovn-northd
>
> Tested-by: Miguel Duarte de Mora Barroso <[email protected]>
> Signed-off-by: Lorenzo Bianconi <[email protected]>
> ---
> Changes since v2:
> - add automatic test case
>
> Changes since v1:
> - add entry in NEWS
> - do not modify the idl object in-place but update it running
> nbrec_nb_global_set_options
It looks to me like this puts a full MAC address in options:mac_prefix,
like xx:xx:xx:xx:xx:xx. The documented format for this setting is just
xx:xx:xx:
<column name="options" key="mac_prefix">
Configure a given OUI to be used as prefix when L2 address is
dynamically assigned, e.g. <code>00:11:22</code>
</column>
On upgrade, I think that this will suddenly change the MAC addresses of
all the VMs. Is there a way to avoid that? Should we add a release
note?
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