openstack/kayobe
Code Issues Proposed changes

Merge "Add example to Bridges and VLANs section"

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Zuul 2019-12-11 15:23:23 +00:00 committed by Gerrit Code Review
commit ea46396050
1 changed files with 28 additions and 1 deletions

29
doc/source/configuration/network.rst

@ -390,7 +390,7 @@ addition to the bond, as a different named network.
Configuring VLAN Interfaces
---------------------------
A VLAN interface may be configured by setting the ``interface`` attribute of a
A VLAN interface may be configured by setting the ``interface`` attribute of a
network to the name of the VLAN interface. The interface name must be of the
form ``<parent interface>.<VLAN ID>``.
@ -420,6 +420,33 @@ VLAN to be forwarded by the bridge, whereas adding a VLAN interface to an
Ethernet or bond interface that is a bridge member port will prevent tagged
traffic for that VLAN being forwarded by the bridge.
For example, if you are bridging ``eth1`` to ``breth1`` and want to access VLAN
1234 as a tagged VLAN from the host, while still allowing Neutron to access
traffic for that VLAN via Open vSwitch, your setup should look like this:
.. code-block:: console
$ sudo brctl show
bridge name bridge id STP enabled interfaces
breth1 8000.56e6b95b4178 no p-breth1-phy
eth1
$ sudo ip addr show | grep 1234 | head -1
10: breth1.1234@breth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
It should **not** look like this:
.. code-block:: console
$ sudo brctl show
bridge name bridge id STP enabled interfaces
breth1 8000.56e6b95b4178 no p-breth1-phy
eth1
$ sudo ip addr show | grep 1234 | head -1
10: eth1.1234@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
This second configuration may be desirable to prevent specific traffic, e.g. of
the internal API network, from reaching Neutron.
Domain Name Service (DNS) Resolver Configuration
================================================