--- a/bin/pvl.hosts-graph	Mon Mar 31 17:27:36 2014 +0300
+++ b/bin/pvl.hosts-graph	Mon Mar 31 17:30:42 2014 +0300
@@ -237,12 +237,18 @@
                         log.info("%s:%s: guessing lldp host %s -> %s (%s)", host, port, remote_lldp, remote_host, remote_label)
 
                     else :
-                        # by chassis id
-                        remote_node = remote_lldp
-                        remote_host = None
+                        log.warning("%s:%s: unknown lldp remote %s (%s)", host, port, remote_lldp, remote_label)
+                        
+                        if options.graph_lldp_unknown :
+                            # by chassis id
+                            remote_node = remote_lldp
+                            remote_host = None
+                        else :
+                            remote_node = remote_host = None
+                    
+                    if not remote_node :
+                        continue
 
-                        log.warning("%s:%s: unknown lldp remote %s (%s)", host, port, remote_lldp, remote_label)
-                    
                     # ensure remote node
                     if remote_node not in nodes :
                         log.debug("%s:%s: lazy-add remote %s (%s)", host, port, remote_node, remote_label)
@@ -375,7 +381,7 @@
                     local_port = port
 
                     # mapping was completely missing
-                    log.warn("%s:%s link -> %s", local_node, local_port, remote_node)
+                    log.info("%s:%s link -> %s", local_node, local_port, remote_node)
 
                     links[(local_node, local_port, None, remote_node)] = None
 
@@ -602,8 +608,9 @@
     parser.add_option('--snmp-data', metavar='FILE', default=None,
             help="Load snmp data from FILE")
 
-    parser.add_option('--graph-dot', metavar='FILE',
-            help="Output .dot graph data to file")
+
+    parser.add_option('--graph-lldp-unknown', action='store_true',
+            help="Graph unknown LLDP nodes")
 
 
     parser.add_option('--graph-vlans', action='store_true', dest='graph_vlans', 
@@ -612,10 +619,14 @@
     parser.add_option('--no-vlans', action='store_false', dest='graph_vlans',
             help="Do not color VLANs")
 
+
     parser.add_option('--graph-bridge', action='store_true',
             help="Graph bridge forwarding database links")
 
 
+    parser.add_option('--graph-dot', metavar='FILE',
+            help="Output .dot graph data to file")
+
     # input
     options, args = parser.parse_args(argv[1:])
     pvl.args.apply(options)