vswitch.xml: Better explain vlan-limit.

CC: Eric Garver <e@erig.me>
Requested-by: Jerry Lilijun <jerry.lilijun@huawei.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Eric Garver <e@erig.me>

diff --git a/vswitchd/vswitch.xml b/vswitchd/vswitch.xml
index e318151f0ce94cf4786483679722a6257e57abda..f05f616feed6d3efdffb633f2bf6c6c50e79e6a2 100644 (file)
--- a/vswitchd/vswitch.xml
+++ b/vswitchd/vswitch.xml
@@ -493,11 +493,11 @@
           e.g. a packet with more 802.1q headers will match Ethernet type
           0x8100.
         </p>
+
         <p>
-          Value <code>0</code> means unlimited.  The actual number of supported
-          VLAN headers is the smallest of <code>vlan-limit</code>, the number
-          of VLANs supported by Open vSwitch userspace (currently 2), and the
-          number supported by the datapath.
+          Open vSwitch userspace currently supports at most 2 VLANs, and each
+          datapath has its own limit.  If <code>vlan-limit</code> is nonzero,
+          it acts as a further limit.
         </p>
 
         <p>