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docs: document port isolated property in domain/network/networkport

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Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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Laine Stump 2020-02-25 19:47:07 -05:00
parent 9033104939
commit 366ceeec4b
3 changed files with 67 additions and 0 deletions
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31
docs/formatdomain.html.in
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@ -6539,6 +6539,37 @@ qemu-kvm -net nic,model=? /dev/null
traffic for that VLAN will be tagged.
</p>
<h5><a id="elementPort">Isolating guests's network traffic from each other</a></h5>
<pre>
...
&lt;devices&gt;
&lt;interface type='network'&gt;
&lt;source network='default'/&gt;
<b>&lt;port isolated='yes'/&gt;</b>
&lt;/interface&gt;
&lt;/devices&gt;
...</pre>
<p>
<span class="since">Since 6.1.0.</span> The <code>port</code>
element property <code>isolated</code>, when set
to <code>yes</code> (default setting is <code>no</code>) is used
to isolate this interface's network traffic from that of other
guest interfaces connected to the same network that also
have <code>&lt;port isolated='yes'/&gt;</code>. This setting is
only supported for emulated interface devices that use a
standard tap device to connect to the network via a Linux host
bridge. This property can be inherited from a libvirt network,
so if all guests that will be connected to the network should be
isolated, it is better to put the setting in the network
configuration. (NB: this only prevents guests that
have <code>isolated='yes'</code> from communicating with each
other; if there is a guest on the same bridge that doesn't
have <code>isolated='yes'</code>, even the isolated guests will
be able to communicate with it.)
</p>
<h5><a id="elementLink">Modifying virtual link state</a></h5>
<pre>
...

25
docs/formatnetwork.html.in
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@ -729,6 +729,31 @@
or <code>&lt;interface&gt;</code>.
</p>
<h5><a id="elementPort">Isolating ports from one another</a></h5>
<pre>
&lt;network&gt;
&lt;name&gt;isolated-ports&lt;/name&gt;
&lt;forward mode='bridge'/&gt;
&lt;bridge name='br0'/&gt;
&lt;port isolated='yes'/&gt;
&lt;/network&gt;
</pre>
<p>
<span class="since">Since 6.1.0.</span> The <code>port</code>
element property <code>isolated</code>, when set
to <code>yes</code> (default setting is <code>no</code>) is used
to isolate the network traffic of each guest on the network from
all other guests connected to the network; it does not have an
effect on communication between the guests and the host, or
between the guests and destinations beyond this network. This
setting is only supported for networks that use a Linux host
bridge to connect guest interfaces via a standard tap device
(i.e. those with a forward mode of nat, route, open, bridge, or
no forward mode).
</p>
<h5><a id="elementsPortgroup">Portgroups</a></h5>
<pre>

11
docs/formatnetworkport.html.in
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@ -84,6 +84,7 @@
&lt;outbound average='128' peak='256' burst='256'/&gt;
&lt;/bandwidth&gt;
&lt;rxfilters trustGuest='yes'/&gt;
&lt;port isolated='yes'/&gt;
&lt;virtualport type='802.1Qbg'&gt;
&lt;parameters managerid='11' typeid='1193047' typeidversion='2'/&gt;
&lt;/virtualport&gt;
@ -110,6 +111,16 @@
only supported for the virtio device model and for macvtap
connections on the host.
</dd>
<dt><code>port</code></dt>
<dd> <span class="since">Since 6.1.0.</span>
The <code>port</code> element property
<code>isolated</code>, when set to <code>yes</code> (default
setting is <code>no</code>) is used to isolate this port's
network traffic from other ports on the same network that also
have <code>&lt;port isolated='yes'/&gt;</code>. This setting
is only supported for emulated network devices connected to a
Linux host bridge via a standard tap device.
</dd>
<dt><code>virtualport</code></dt>
<dd>The <code>virtualport</code> element describes metadata that
needs to be provided to the underlying network subsystem. It