vswitch.xml: Better explain vlan-limit.
CC: Eric Garver
Requested-by: Jerry Lilijun
Acked-by: Eric Garver
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>
