diff --git a/test_interest_loop/interest-loop-test.sh b/test_interest_loop/interest-loop-test.sh
index 0cc616e..f917a06 100755
--- a/test_interest_loop/interest-loop-test.sh
+++ b/test_interest_loop/interest-loop-test.sh
@@ -27,10 +27,18 @@
 # start NFD on three nodes and set nexthop to create loop
 echo "start NFD on three nodes and set nexthop to create loop..."
 ssh $CTRL_B "mkdir -p $workdir/logs;\
-    sudo nfd --config $workdir/nfd.conf > $workdir/logs/nfd.log 2>&1 &"
+    sudo nfd --config $workdir/nfd.conf &> $workdir/logs/nfd.log &\
+    sleep 2;\
+    nrd --config $workdir/nfd.conf &> $workdir/logs/nrd.log &\
+    sleep 2"
 ssh $CTRL_C "mkdir -p $workdir/logs;\
-    sudo nfd --config $workdir/nfd.conf > $workdir/logs/nfd.log 2>&1 &"
-sudo nfd --config $workdir/nfd.conf > $workdir/logs/nfd.log 2>&1 &
+    sudo nfd --config $workdir/nfd.conf &> $workdir/logs/nfd.log &\
+    sleep 2;\
+    nrd --config $workdir/nfd.conf &> $workdir/logs/nrd.log &\
+    sleep 2"
+sudo nfd --config $workdir/nfd.conf &> $workdir/logs/nfd.log &
+sleep 2
+nrd --config $workdir/nfd.conf &> $workdir/logs/nrd.log &
 sleep 5
 ssh $CTRL_B "$workdir/add-nexthop.sh $c_ipaddr $strategy"
 ssh $CTRL_C "$workdir/add-nexthop.sh $a_ipaddr $strategy"