fixed multiping example

examples/multiping.py

@@ -23,13 +23,8 @@ def chunks( l, n ):
 def startpings( host, targetips ):
     "Tell host to repeatedly ping targets"
 
-    targetips.append( '10.0.0.200' )
-
     targetips = ' '.join( targetips )
 
-    # BL: Not sure why loopback intf isn't up!
-    host.cmd( 'ifconfig lo up' )
-
     # Simple ping loop
     cmd = ( 'while true; do '
             ' for ip in %s; do ' % targetips +
@@ -63,6 +58,8 @@ def multiping( netsize, chunksize, seconds):
     # Start pings
     for subnet in subnets:
         ips = [ host.IP() for host in subnet ]
+        #adding bogus to generate packet loss
+        ips.append( '10.0.0.200' )
         for host in subnet:
             startpings( host, ips )