diff --git a/doc/plan.org b/doc/plan.org
index fa9c13d..eb2c3c1 100644
--- a/doc/plan.org
+++ b/doc/plan.org
@@ -5152,6 +5152,56 @@ nf2_applied times:  []
 nf3_applied times:  []
 
 #+END_CENTER
+*** 2019-07-13: changing/fix testdata
+Still impl_1 error:
+
+#+BEGIN_CENTER
+
+export simple_sume_switch project to SDK
+
+ ****** Vivado v2018.2 (64-bit)
+  **** SW Build 2258646 on Thu Jun 14 20:02:38 MDT 2018
+  **** IP Build 2256618 on Thu Jun 14 22:10:49 MDT 2018
+    ** Copyright 1986-2018 Xilinx, Inc. All Rights Reserved.
+
+source tcl/export_hardware.tcl
+# set design [lindex $argv 0]
+# puts "\nOpening $design XPR project\n"
+
+Opening simple_sume_switch XPR project
+
+# open_project project/$design.xpr
+Scanning sources...
+Finished scanning sources
+INFO: [IP_Flow 19-234] Refreshing IP repositories
+INFO: [IP_Flow 19-1700] Loaded user IP repository '/home/nico/master-thesis/netpfga/minip4/simple_sume_switch/hw/ip_repo'.
+INFO: [IP_Flow 19-2313] Loaded Vivado IP repository '/opt/Xilinx/Vivado/2018.2/data/ip'.
+WARNING: [IP_Flow 19-3664] IP 'bd_7ad4_xpcs_0' generated file not found '/home/nico/master-thesis/netpfga/minip4/simple_sume_switch/hw/.Xil/Vivado-29136-nsg-System/coregen/bd_7ad4_xpcs_0_1/elaborate/configure_gt.tcl'. Please regenerate to continue.
+WARNING: [IP_Flow 19-3664] IP 'bd_a1aa_xpcs_0' generated file not found '/home/nico/master-thesis/netpfga/minip4/simple_sume_switch/hw/.Xil/Vivado-29136-nsg-System/coregen/bd_a1aa_xpcs_0_2/elaborate/configure_gt.tcl'. Please regenerate to continue.
+open_project: Time (s): cpu = 00:00:05 ; elapsed = 00:00:05 . Memory (MB): peak = 1364.328 ; gain = 187.594 ; free physical = 10371 ; free virtual = 15665
+# puts "\nOpening $design Implementation design\n"
+
+Opening simple_sume_switch Implementation design
+
+# open_run impl_1
+ERROR: [Common 17-69] Command failed: Run 'impl_1' has not been launched. Unable to open
+Vivado%
+─────────────────────────────────────────────────────────────────────────
+#+END_CENTER
+
+Command generating *THIS* error:
+
+#+BEGIN_CENTER
+nico     25855  0.0  0.0   4508  1680 pts/10   S+   17:28   0:00  |   \_ /bin/sh ./do-all-steps.sh
+nico     29005  0.0  0.0   9988  2516 pts/10   S+   17:32   0:00  |   |   \_ make
+nico      6363  0.0  0.0   9988  2536 pts/10   S+   18:24   0:00  |   |       \_ make -C hw export_to_sdk
+nico      6399  0.0  0.0   4508   708 pts/10   S+   18:24   0:00  |   |           \_ /bin/sh -c if test -d project; then\ ?echo "export simple_sume_switch project to SDK"; \ ?vivado -mode tcl -source tcl/export_hardware.tcl -tclargs simple_sume_switch;\ e
+lse \ ?echo "Project simple_sume_switch does not exist.";\ ?echo "Please run \"make project\" to create and build the project first";\ fi;\                                                                                                                    nico      6400  0.0  0.0  12948  3368 pts/10   S+   18:24   0:00  |   |               \_ /bin/bash /opt/Xilinx/Vivado/2018.2/bin/vivado -mode tcl -source tcl/export_hardware.tcl -tclargs simple_sume_switch
+nico      6424  0.0  0.0  12944  3132 pts/10   S+   18:24   0:00  |   |                   \_ /bin/bash /opt/Xilinx/Vivado/2018.2/bin/loader -exec vivado -mode tcl -source tcl/export_hardware.tcl -tclargs simple_sume_switch
+nico      6440  0.4  4.0 1397068 643640 pts/10 Sl+  18:24   0:11  |   |                       \_ /opt/Xilinx/Vivado/2018.2/bin/unwrapped/lnx64.o/vivado -mode tcl -source tcl/export_hardware.tcl -tclargs simple_sume_switch
+
+#+END_CENTER
+
 **** go through all steps again and try to understand why it (silently) fails later
 *** 2019-07-13: fix overflow error
 ** References / Follow up
diff --git a/netpfga/minip4/testdata/gen_testdata-port1.py b/netpfga/minip4/testdata/gen_testdata-port1.py
index aeada70..a8755f6 100755
--- a/netpfga/minip4/testdata/gen_testdata-port1.py
+++ b/netpfga/minip4/testdata/gen_testdata-port1.py
@@ -103,20 +103,35 @@ lookup_table = {
 def test_port1():
     """ packets for a certain mac always go to nf0 """
     pktCnt = 0
-
-    # First ethernet
-    pktCnt += 1
     pkt = Ether(dst=MAC2, src=MAC1)
     pkt = pad_pkt(pkt, 64)
+
+    # Send on nf0
+    pktCnt += 1
     applyPkt(pkt, 'nf0', pktCnt)
 
-    pktCnt += 1
+    # Receive on nf0
     expPkt(pkt,   'nf0')
 
+    # Send on nf1
     pktCnt += 1
     applyPkt(pkt, 'nf1', pktCnt)
 
+    # Receive on nf0
+    expPkt(pkt,   'nf0')
+
+    # Send on nf2
     pktCnt += 1
+    applyPkt(pkt, 'nf2', pktCnt)
+
+    # Receive on nf0
+    expPkt(pkt,   'nf0')
+
+    # Send on nf3
+    pktCnt += 1
+    applyPkt(pkt, 'nf2', pktCnt)
+
+    # Receive on nf0
     expPkt(pkt,   'nf0')
 
 # Test that packets are being mirrored