openstack/openstack-manuals
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Merge "Networking guide correction on provider networks creation"

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Jenkins 2016-11-01 14:21:51 +00:00 committed by Gerrit Code Review
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doc/networking-guide/source/intro-os-networking.rst
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@ -68,9 +68,22 @@ existing layer-2 networks in the data center, typically using VLAN (802.1q)
tagging to identify and separate them.
Provider networks generally offer simplicity, performance, and reliability
at the cost of flexibility. Only administrators can manage provider networks
because they require configuration of physical network infrastructure. Also,
provider networks only handle layer-2 connectivity for instances, thus
at the cost of flexibility. By default only administrators can create or
update provider networks because they require configuration of physical
network infrastructure. It is possible to change the user who is allowed to
create or update provider networks with the following parameters of
``policy.json``:
* ``create_network:provider:physical_network``
* ``update_network:provider:physical_network``
.. warning::
The creation and modification of provider networks enables use of
physical network resources, such as VLAN-s. Enable these changes
only for trusted tenants.
Also, provider networks only handle layer-2 connectivity for instances, thus
lacking support for features such as routers and floating IP addresses.
In many cases, operators who are already familiar with virtual networking