datapath: Add multicast tunnel support.

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

diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml
index 239a9e8..bcb6b6f 100644 (file)
--- a/vswitchd/vswitch.xml
+++ b/vswitchd/vswitch.xml
@@ -1118,12 +1118,22 @@
       </p>
 
       <column name="options" key="remote_ip">
-        Required.  The tunnel endpoint.
+        <p>
+          Required.  The tunnel endpoint.  Unicast and multicast endpoints are
+          both supported.
+        </p>
+
+        <p>
+          When a multicast endpoint is specified, a routing table lookup occurs
+          only when the tunnel is created.  Following a routing change, delete
+          and then re-create the tunnel to force a new routing table lookup.
+        </p>
       </column>
 
       <column name="options" key="local_ip">
-        Optional.  The destination IP that received packets must
-        match.  Default is to match all addresses.
+        Optional.  The destination IP that received packets must match.
+        Default is to match all addresses.  Must be omitted when <ref
+        column="options" key="remote_ip"/> is a multicast address.
       </column>
 
       <column name="options" key="in_key">