[DOC] Document subport/parent MAC address relationship

[Alex Stafeyev]

Description of problem:
We need to documents that while create sub-port it should be created with --mac-address PARENT_PORT_MAC_ADDERSS.

This is the correct networking config- on VM subIF and IF should have the same mac and it is the default option. We need to match neutron port creation with same concept- parent and subport should have same mac address.

Openstack Ocata

[Boden R (boden)]

It looks like perhaps we could update neutron/doc/source/admin/config-trunking.rst with this info, but I want to confirm with someone who's more vested in this functionality first.

[Armando Migliaccio (armando-migliaccio)]

I suppose you can make the extra recommendation in the docs, but it is not necessary for the MACs to match. In fact up until [1] was resolved you couldn't even do it with security groups involved. So, while this is a legit request, we need to be careful about the wording.

Personally, I don't feel like the documentation requires any tweaking, in the end, the way the guest is configured is up to the user and if she needs for the subinterfaces MACs to match, the model and API allows that to happen.

[1] https://bugs.launchpad.net/neutron/+bug/1626010

[Boden R (boden)]

Based on Armando's comment #2 moving this to invalid.
Given comment#2, if folks still feel doc tweaking is necessary, please reopen.