Update site.rst

docs/user/site.rst

@@ -182,12 +182,15 @@ fastd_mesh_vpn
     In any case, the ``null`` method should always be the first method in the list
     if it is supported at all. You should only set `configurable` to `true` if the
     configured peers support both the ``null`` method and methods with encryption.
+    
+    You can set syslog_level from verbose(default) to warn to reduce syslog output.
     ::
 
       fastd_mesh_vpn = {
         methods = {'salsa2012+umac'},
       	-- enabled = true,
       	-- configurable = true,
+	-- syslog_level = 'warn',
         mtu = 1280,
         groups = {
           backbone = {