cfm: Require ccm received in demand mode.

[sliver-openvswitch.git] / vswitchd / vswitch.xml

diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml
index b0a8577..aa9168d 100644 (file)
--- a/vswitchd/vswitch.xml
+++ b/vswitchd/vswitch.xml
@@ -566,9 +566,9 @@
 
       <column name="protocols">
        <p>
-         List of OpenFlow protocols that may be used when negotiating a
-         connection with a controller.  A default value of
-         <code>OpenFlow10</code> will be used if this column is empty.
+         List of OpenFlow protocols that may be used when negotiating
+         a connection with a controller.  OpenFlow 1.0, 1.1, 1.2, and
+         1.3 are enabled by default if this column is empty.
        </p>
 
        <p>
@@ -2231,9 +2231,10 @@
           <ref column="other_config" key="cfm_extended"/> is true, the CFM
           module operates in demand mode.  When in demand mode, traffic
           received on the <ref table="Interface"/> is used to indicate
-          liveness.  CCMs are still transmitted and received, but if the
-          <ref table="Interface"/> is receiving traffic, their absence does not
-          cause a connectivity fault.
+          liveness.  CCMs are still transmitted and received.  At least one
+          CCM must be received every 100 * <ref column="other_config"
+          key="cfm_interval"/> amount of time.  Otherwise, even if traffic
+          are received, the CFM module will raise the connectivity fault.
         </p>
 
         <p>
@@ -2628,6 +2629,13 @@
         one flow table.  Currently this limit is 3.
       </p>
     </column>
+
+    <group title="Common Columns">
+      The overall purpose of these columns is described under <code>Common
+      Columns</code> at the beginning of this document.
+
+      <column name="external_ids"/>
+    </group>
   </table>
 
   <table name="QoS" title="Quality of Service configuration">