diff --git a/netpfga/minip4/testdata/gen_testdata-port1.py b/netpfga/minip4/testdata/gen_testdata-port1.py
index 474277c..b98ecc4 100755
--- a/netpfga/minip4/testdata/gen_testdata-port1.py
+++ b/netpfga/minip4/testdata/gen_testdata-port1.py
@@ -43,7 +43,7 @@ nf_id_map = {
 sss_sdnet_tuples.clear_tuple_files()
 
 def applyPkt(pkt, ingress, time):
-    print("Applying pkt on {} at {}".format(ingress, time))
+    print("Applying pkt on {} at {}: ".format(ingress, time))
     pktsApplied.append(pkt)
     sss_sdnet_tuples.sume_tuple_in['src_port'] = nf_port_map[ingress]
     sss_sdnet_tuples.sume_tuple_expect['src_port'] = nf_port_map[ingress]
@@ -78,6 +78,7 @@ def write_pcap_files():
         if (len(nf_expected[i]) > 0):
             wrpcap('nf{0}_expected.pcap'.format(i), nf_expected[i])
 
+    # i = 0..3
     for i in nf_applied.keys():
         print "nf{0}_applied times: ".format(i), [p.time for p in nf_applied[i]]
 
@@ -107,8 +108,8 @@ def test_port1():
     pkt = Ether(dst=MAC2, src=MAC1)
     pkt = pad_pkt(pkt, 64)
 
-    for inport in [ 'nf0', 'nf1', 'nf2', 'nf3' ]:
-#    for inport in [ 'nf0' ]:
+#    for inport in [ 'nf0', 'nf1', 'nf2', 'nf3' ]:
+    for inport in [ 'nf0' ]:
         # Send on nf0..nf3
         applyPkt(pkt, inport, pktCnt)
 
@@ -118,5 +119,4 @@ def test_port1():
         pktCnt += 1
 
 test_port1()
-
 write_pcap_files()