Brandon Heller brandonh@stanford.edu
Brendan Kelley bkelley@nicira.com
Brent Salisbury brent.salisbury@gmail.com
+Brian Field Brian_Field@cable.comcast.com
Bryan Fulton bryan@nicira.com
Bryan Osoro bosoro@nicira.com
Cedric Hobbs cedric@nicira.com
<column name="other_config" key="forward-bpdu"
type='{"type": "boolean"}'>
- Option to allow forwarding of BPDU frames when NORMAL action is
- invoked. Frames with reserved Ethernet addresses (e.g. STP
- BPDU) will be forwarded when this option is enabled and the
- switch is not providing that functionality. If STP is enabled
- on the port, STP BPDUs will never be forwarded. If the Open
- vSwitch bridge is used to connect different Ethernet networks,
- and if Open vSwitch node does not run STP, then this option
- should be enabled. Default is disabled, set to
- <code>true</code> to enable.
-
- The following destination MAC addresss will not be forwarded when this
- option is enabled.
+
+ <p>
+ Controls forwarding of BPDUs and other network control frames when
+ NORMAL action is invoked. When this option is <code>false</code> or
+ unset, frames with reserved Ethernet addresses (see table below) will
+ not be forwarded. When this option is <code>true</code>, such frames
+ will not be treated specially.
+ </p>
+
+ <p>
+ The above general rule has the following exceptions:
+ </p>
+
+ <ul>
+ <li>
+ If STP is enabled on the bridge (see the <ref column="stp_enable"
+ table="Bridge"/> column in the <ref table="Bridge"/> table), the
+ bridge processes all received STP packets and never passes them to
+ OpenFlow or forwards them. This is true even if STP is disabled on
+ an individual port.
+ </li>
+
+ <li>
+ If LLDP is enabled on an interface (see the <ref column="lldp"
+ table="Interface"/> column in the <ref table="Interface"/> table),
+ the interface processes received LLDP packets and never passes them
+ to OpenFlow or forwards them.
+ </li>
+ </ul>
+
+ <p>
+ Set this option to <code>true</code> if the Open vSwitch bridge
+ connects different Ethernet networks and is not configured to
+ participate in STP.
+ </p>
+
+ <p>
+ This option affects packets with the following destination MAC
+ addresses:
+ </p>
+
<dl>
<dt><code>01:80:c2:00:00:00</code></dt>
<dd>IEEE 802.1D Spanning Tree Protocol (STP).</dd>