diff --git a/ndn/nfd.py b/ndn/nfd.py
index 614a358..b33fc37 100644
--- a/ndn/nfd.py
+++ b/ndn/nfd.py
@@ -3,6 +3,9 @@
 import time
 
 class Nfd:
+    STRATEGY_BEST_ROUTE_V3 = "best-route/%FD%03"
+    STRATEGY_NCC = "ncc"
+
     def __init__(self, node):
         self.node = node
         self.isRunning = False
@@ -18,8 +21,8 @@
         self.ndnFolder = "%s/.ndn" % self.homeFolder
         self.clientConf = "%s/client.conf" % self.ndnFolder
 
-        # Copy nfd.conf file from mn-ndn/ndn_utils to the node's home
-        node.cmd("sudo cp ~/mn-ndn/ndn_utils/nfd.conf %s" % self.confFile)
+        # Copy nfd.conf file from mini-ndn/ndn_utils to the node's home
+        node.cmd("sudo cp ~/mini-ndn/ndn_utils/nfd.conf %s" % self.confFile)
 
         # Open the conf file and change socket file name
         node.cmd("sudo sed -i 's|nfd.sock|%s.sock|g' %s" % (node.name, self.confFile))
@@ -28,13 +31,19 @@
         node.cmd("sudo mkdir %s" % self.ndnFolder)
 
         # Copy the client.conf file and change the unix socket
-        node.cmd("sudo cp ~/mn-ndn/ndn_utils/client.conf.sample %s" % self.clientConf)
+        node.cmd("sudo cp ~/mini-ndn/ndn_utils/client.conf.sample %s" % self.clientConf)
         node.cmd("sudo sed -i 's|nfd.sock|%s.sock|g' %s" % (node.name, self.clientConf))
 
         # Change home folder
         node.cmd("export HOME=%s" % self.homeFolder)
 
     def start(self):
+        if self.isRunning is True:
+            try:
+                os.kill(int(self.processId), 0)
+            except OSError:
+                self.isRunning = False
+
         if self.isRunning is False:
             self.node.cmd("sudo nfd --config %s 2>> %s &" % (self.confFile, self.logFile))
             self.processId = self.node.cmd("echo $!")[:-1]
@@ -47,8 +56,8 @@
         if self.isRunning is True:
             self.node.cmd("sudo kill %s" % self.processId)
 
-        self.isRunning = False
+            self.isRunning = False
 
     def setStrategy(self, name, strategy):
-        node.cmd("nfdc set-strategy %s ndn:/localhost/nfd/strategy/%s" % (name, strategy))
+        self.node.cmd("nfdc set-strategy %s ndn:/localhost/nfd/strategy/%s" % (name, strategy))
         time.sleep(0.5)