diff --git a/docs/usecases/simpleperf/iperf3.rst b/docs/usecases/simpleperf/iperf3.rst
index 6f5d345..d485a5e 100644
--- a/docs/usecases/simpleperf/iperf3.rst
+++ b/docs/usecases/simpleperf/iperf3.rst
@@ -60,7 +60,7 @@
    csp2s22c03$ sudo ip link set dev ens802f0 up
    csp2s22c03$ sudo ip addr add 10.10.2.1/24 dev ens802f1
    csp2s22c03$ sudo ip link set dev ens802f1 up
-    
+
 List the route table:
 
 .. code-block:: console
@@ -123,7 +123,7 @@
              TX packets:1179 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000
              RX bytes:262230 (262.2 KB)  TX bytes:139975 (139.9 KB)
-   
+
    ens802    Link encap:Ethernet  HWaddr 68:05:ca:2e:76:e0
              inet addr:10.10.1.2  Bcast:0.0.0.0  Mask:255.255.255.0
              inet6 addr: fe80::6a05:caff:fe2e:76e0/64 Scope:Link
@@ -132,7 +132,7 @@
              TX packets:40 errors:0 dropped:0 overruns:0 carrier:0
              collisions:0 txqueuelen:1000
              RX bytes:0 (0.0 B)  TX bytes:5480 (5.4 KB)
-   
+
    lo        Link encap:Local Loopback
              inet addr:127.0.0.1  Mask:255.0.0.0
              inet6 addr: ::1/128 Scope:Host
@@ -233,5 +233,5 @@
    [ ID] Interval           Transfer     Bandwidth       Retr
    [  4]   0.00-10.00  sec  9.45 GBytes  8.12 Gbits/sec  16474             sender
    [  4]   0.00-10.00  sec  9.44 GBytes  8.11 Gbits/sec                  receiver
-   
+
    iperf Done.
diff --git a/docs/usecases/simpleperf/iperf31.rst b/docs/usecases/simpleperf/iperf31.rst
index 50abfdf..dbd0e72 100644
--- a/docs/usecases/simpleperf/iperf31.rst
+++ b/docs/usecases/simpleperf/iperf31.rst
@@ -22,38 +22,38 @@
 .. code-block:: console
 
    csp2s22c03$ ./install-vpp-native/dpdk/sbin/dpdk-devbind -s
-   
+
    Network devices using DPDK-compatible driver
    ============================================
    <none>
-   
+
    Network devices using kernel driver
    ===================================
    0000:03:00.0 'Ethernet Controller 10-Gigabit X540-AT2' if=enp3s0f0 drv=ixgbe unused=vfio-pci,uio_pci_generic *Active*
    0000:03:00.1 'Ethernet Controller 10-Gigabit X540-AT2' if=enp3s0f1 drv=ixgbe unused=vfio-pci,uio_pci_generic *Active*
-   0000:82:00.0 'Ethernet Controller XL710 for 40GbE QSFP+' if=ens802f0d1,ens802f0 drv=i40e unused=uio_pci_generic                       
-   0000:82:00.1 'Ethernet Controller XL710 for 40GbE QSFP+' if=ens802f1d1,ens802f1 drv=i40e unused=uio_pci_generic                        
-   
+   0000:82:00.0 'Ethernet Controller XL710 for 40GbE QSFP+' if=ens802f0d1,ens802f0 drv=i40e unused=uio_pci_generic
+   0000:82:00.1 'Ethernet Controller XL710 for 40GbE QSFP+' if=ens802f1d1,ens802f1 drv=i40e unused=uio_pci_generic
+
    Other network devices
    =====================
    <none>
-   
+
    csp2s22c03$ sudo modprobe uio_pci_generic
    csp2s22c03$ sudo ./install-vpp-native/dpdk/sbin/dpdk-devbind --bind uio_pci_generic 82:00.0
    csp2s22c03$ sudo ./install-vpp-native/dpdk/sbin/dpdk-devbind --bind uio_pci_generic 82:00.1
 
    csp2s22c03$ sudo ./install-vpp-native/dpdk/sbin/dpdk-devbind -s
-   
+
    Network devices using DPDK-compatible driver
    ============================================
    0000:82:00.0 'Ethernet Controller XL710 for 40GbE QSFP+' drv=uio_pci_generic unused=i40e,vfio-pci
    0000:82:00.1 'Ethernet Controller XL710 for 40GbE QSFP+' drv=uio_pci_generic unused=i40e,vfio-pci
-   
+
    Network devices using kernel driver
    ===================================
    0000:03:00.0 'Ethernet Controller 10-Gigabit X540-AT2' if=enp3s0f0 drv=ixgbe unused=vfio-pci,uio_pci_generic *Active*
    0000:03:00.1 'Ethernet Controller 10-Gigabit X540-AT2' if=enp3s0f1 drv=ixgbe unused=vfio-pci,uio_pci_generic *Active*
-   
+
 Start the VPP service, and verify that VPP is running:
 
 .. code-block:: console
@@ -63,7 +63,7 @@
    root     105655      1 98 17:34 ?        00:00:02 /usr/bin/vpp -c /etc/vpp/startup.conf
    :w
             105675 105512  0 17:34 pts/4    00:00:00 grep --color=auto vpp
-   
+
 To access the VPP CLI, issue the command sudo vppctl . From the VPP interface, list
 all interfaces that are bound to DPDK using the command show interface:
 
@@ -109,7 +109,7 @@
    [ ID] Interval           Transfer     Bandwidth       Retr
    [  4]   0.00-10.00  sec  23.7 GBytes  20.3 Gbits/sec  13434             sender
    [  4]   0.00-10.00  sec  23.7 GBytes  20.3 Gbits/sec                  receiver
-   
+
    iperf Done.
 
 The **show run** command displays the graph runtime statistics. Observe that the
diff --git a/docs/usecases/simpleperf/trex.rst b/docs/usecases/simpleperf/trex.rst
index 996ed15..6d38ce5 100644
--- a/docs/usecases/simpleperf/trex.rst
+++ b/docs/usecases/simpleperf/trex.rst
@@ -65,7 +65,7 @@
            default_gw: 10.10.2.1
          - ip: 10.10.1.2
            default_gw: 10.10.1.1
-   
+
 Stop the previous VPP session and start it again in order to add a route for new
 IP addresses 16.0.0.0/8 and 48.0.0.0/8, according to Figure 2. Those IP addresses
 are needed because TRex generates packets that use these addresses. Refer to the
@@ -81,13 +81,13 @@
     __/ __/ _ \  (_)__    | | / / _ \/ _ \
     _/ _// // / / / _ \   | |/ / ___/ ___/
     /_/ /____(_)_/\___/   |___/_/  /_/
-   
+
    vpp# sho int
                  Name               Idx       State          Counter          Count
    FortyGigabitEthernet82/0/0        1        down
    FortyGigabitEthernet82/0/1        2        down
    local0                            0        down
-   
+
    vpp#
    vpp# set interface ip address FortyGigabitEthernet82/0/0 10.10.1.1/24
    vpp# set interface ip address FortyGigabitEthernet82/0/1 10.10.2.1/24
@@ -109,7 +109,7 @@
     Total-tx-bytes       : 166886 bytes
     Total-tx-sw-bytes    : 166716 bytes
     Total-rx-bytes       : 166886 byte
-   
+
     Total-tx-pkt         : 2528 pkts
     Total-rx-pkt         : 2528 pkts
     Total-sw-tx-pkt      : 2526 pkts
diff --git a/docs/usecases/simpleperf/trex1.rst b/docs/usecases/simpleperf/trex1.rst
index 0daa57f..1704b3f 100644
--- a/docs/usecases/simpleperf/trex1.rst
+++ b/docs/usecases/simpleperf/trex1.rst
@@ -15,7 +15,7 @@
     Total-tx-bytes       : 251062132504 bytes
     Total-tx-sw-bytes    : 21426636 bytes
     Total-rx-bytes       : 251040139922 byte
-   
+
     Total-tx-pkt         : 430598064 pkts
     Total-rx-pkt         : 430554755 pkts
     Total-sw-tx-pkt      : 324646 pkts
diff --git a/docs/usecases/simpleperf/trex2.rst b/docs/usecases/simpleperf/trex2.rst
index 590bfd0..e1ff98f 100644
--- a/docs/usecases/simpleperf/trex2.rst
+++ b/docs/usecases/simpleperf/trex2.rst
@@ -18,36 +18,36 @@
 
     # cd v2.46/
     # ./trex -i
-    -Per port stats table 
-          ports |               0 |               1 |               2 |               3 
+    -Per port stats table
+          ports |               0 |               1 |               2 |               3
      -----------------------------------------------------------------------------------------
-       opackets |               0 |               0 |               0 |               0 
-         obytes |               0 |               0 |               0 |               0 
-       ipackets |               6 |               6 |               5 |               5 
-         ibytes |             384 |             384 |             320 |             320 
-        ierrors |               0 |               0 |               0 |               0 
-        oerrors |               0 |               0 |               0 |               0 
-          Tx Bw |       0.00  bps |       0.00  bps |       0.00  bps |       0.00  bps 
-    
-    -Global stats enabled 
+       opackets |               0 |               0 |               0 |               0
+         obytes |               0 |               0 |               0 |               0
+       ipackets |               6 |               6 |               5 |               5
+         ibytes |             384 |             384 |             320 |             320
+        ierrors |               0 |               0 |               0 |               0
+        oerrors |               0 |               0 |               0 |               0
+          Tx Bw |       0.00  bps |       0.00  bps |       0.00  bps |       0.00  bps
+
+    -Global stats enabled
      Cpu Utilization : 0.0  %
-     Platform_factor : 1.0  
-     Total-Tx        :       0.00  bps  
-     Total-Rx        :     238.30  bps  
-     Total-PPS       :       0.00  pps  
-     Total-CPS       :       0.00  cps  
-    
-     Expected-PPS    :       0.00  pps  
-     Expected-CPS    :       0.00  cps  
-     Expected-BPS    :       0.00  bps  
-    
-     Active-flows    :        0  Clients :        0   Socket-util : 0.0000 %    
-     Open-flows      :        0  Servers :        0   Socket :        0 Socket/Clients :  -nan 
-     drop-rate       :       0.00  bps   
-     current time    : 21.4 sec  
-     test duration   : 0.0 sec  
+     Platform_factor : 1.0
+     Total-Tx        :       0.00  bps
+     Total-Rx        :     238.30  bps
+     Total-PPS       :       0.00  pps
+     Total-CPS       :       0.00  cps
+
+     Expected-PPS    :       0.00  pps
+     Expected-CPS    :       0.00  cps
+     Expected-BPS    :       0.00  bps
+
+     Active-flows    :        0  Clients :        0   Socket-util : 0.0000 %
+     Open-flows      :        0  Servers :        0   Socket :        0 Socket/Clients :  -nan
+     drop-rate       :       0.00  bps
+     current time    : 21.4 sec
+     test duration   : 0.0 sec
      *** TRex is shutting down - cause: 'CTRL + C detected'
-     All cores stopped !! 
+     All cores stopped !!
 
 In the other terminal start the TRex console. With this console we will execute the TRex commands.
 
@@ -55,28 +55,28 @@
 
     # cd v2.46/
     # ./trex -console
-    
+
     Using 'python' as Python interpreter
-    
-    
+
+
     Connecting to RPC server on localhost:4501                   [SUCCESS]
-    
-    
+
+
     Connecting to publisher server on localhost:4500             [SUCCESS]
-    
-    
+
+
     Acquiring ports [0, 1, 2, 3]:                                [SUCCESS]
-    
-    
+
+
     Server Info:
-    
+
     Server version:   v2.46 @ STL
     Server mode:      Stateless
     Server CPU:       2 x Intel(R) Xeon(R) CPU E5-2680 v2 @ 2.80GHz
-    Ports count:      4 x 10Gbps @ VMXNET3 Ethernet Controller	
-    
+    Ports count:      4 x 10Gbps @ VMXNET3 Ethernet Controller
+
     -=TRex Console v3.0=-
-    
+
     Type 'help' or '?' for supported actions
     trex>
 
@@ -85,26 +85,26 @@
 .. code-block:: console
 
     trex>start -f ./stl/imix.py -p 0 1 2 3 -m 9475mbps
-    
+
     Removing all streams from port(s) [0, 1, 2, 3]:              [SUCCESS]
-    
-    
+
+
     Attaching 3 streams to port(s) [0]:                          [SUCCESS]
-    
-    
+
+
     Attaching 3 streams to port(s) [1]:                          [SUCCESS]
-    
-    
+
+
     Attaching 3 streams to port(s) [2]:                          [SUCCESS]
-    
-    
+
+
     Attaching 3 streams to port(s) [3]:                          [SUCCESS]
-    
-    
+
+
     Starting traffic on port(s) [0, 1, 2, 3]:                    [SUCCESS]
-    
+
     80.94 [ms]
-    
+
     trex>
 
 The **-f ./stl/imix.py** argument specifies the file that is used to create the
@@ -116,77 +116,77 @@
 
 .. code-block:: console
 
-    -Per port stats table 
+    -Per port stats table
           ports |               0 |               1 |               2 |               3
      -----------------------------------------------------------------------------------------
-       opackets |       789907304 |       789894738 |       790017701 |       790017132 
-         obytes |    285397726750 |    285392406754 |    285406864578 |    285405883070 
-       ipackets |      1563501970 |              45 |      1563504693 |              44 
-         ibytes |    564870783050 |            2880 |    564873491682 |            2816 
-        ierrors |        15728759 |               0 |        15732451 |               0 
-        oerrors |               0 |               0 |               0 |               0 
-          Tx Bw |     606.55 Mbps |     606.19 Mbps |     606.25 Mbps |     606.51 Mbps 
+       opackets |       789907304 |       789894738 |       790017701 |       790017132
+         obytes |    285397726750 |    285392406754 |    285406864578 |    285405883070
+       ipackets |      1563501970 |              45 |      1563504693 |              44
+         ibytes |    564870783050 |            2880 |    564873491682 |            2816
+        ierrors |        15728759 |               0 |        15732451 |               0
+        oerrors |               0 |               0 |               0 |               0
+          Tx Bw |     606.55 Mbps |     606.19 Mbps |     606.25 Mbps |     606.51 Mbps
 
-    -Global stats enabled 
-     Cpu Utilization : 100.0  %  2.4 Gb/core 
-     Platform_factor : 1.0  
-     Total-Tx        :       2.43 Gbps  
-     Total-Rx        :       2.40 Gbps  
-     Total-PPS       :     841.44 Kpps  
-     Total-CPS       :       0.00  cps  
-    
-     Expected-PPS    :       0.00  pps  
-     Expected-CPS    :       0.00  cps  
-     Expected-BPS    :       0.00  bps  
-    
-     Active-flows    :        0  Clients :        0   Socket-util : 0.0000 %    
-     Open-flows      :        0  Servers :        0   Socket :        0 Socket/Clients :  -nan 
-     Total_queue_full : 6529970196         
-     drop-rate       :       0.00  bps   
-     current time    : 4016.8 sec  
-     test duration   : 0.0 sec  
-    
+    -Global stats enabled
+     Cpu Utilization : 100.0  %  2.4 Gb/core
+     Platform_factor : 1.0
+     Total-Tx        :       2.43 Gbps
+     Total-Rx        :       2.40 Gbps
+     Total-PPS       :     841.44 Kpps
+     Total-CPS       :       0.00  cps
+
+     Expected-PPS    :       0.00  pps
+     Expected-CPS    :       0.00  cps
+     Expected-BPS    :       0.00  bps
+
+     Active-flows    :        0  Clients :        0   Socket-util : 0.0000 %
+     Open-flows      :        0  Servers :        0   Socket :        0 Socket/Clients :  -nan
+     Total_queue_full : 6529970196
+     drop-rate       :       0.00  bps
+     current time    : 4016.8 sec
+     test duration   : 0.0 sec
+
 More statistics can be displayed on the TRex console using the **tui** command.
 
 .. code-block:: console
 
     trex>tui
-    
+
     Global Statistics
-    
-    connection   : localhost, Port 4501                  total_tx_L2  : 2.45 Gb/sec                    
-    version      : STL @ v2.46                           total_tx_L1  : 2.59 Gb/sec                    
-    cpu_util.    : 99.89% @ 2 cores (1 per port)         total_rx     : 2.42 Gb/sec                    
-    rx_cpu_util. : 4.03% / 837.39 Kpkt/sec               total_pps    : 846.96 Kpkt/sec                
-    async_util.  : 0.05% / 1.76 KB/sec                   drop_rate    : 0 b/sec                        
-                                                         queue_full   : 42,750,771 pkts                
-    
+
+    connection   : localhost, Port 4501                  total_tx_L2  : 2.45 Gb/sec
+    version      : STL @ v2.46                           total_tx_L1  : 2.59 Gb/sec
+    cpu_util.    : 99.89% @ 2 cores (1 per port)         total_rx     : 2.42 Gb/sec
+    rx_cpu_util. : 4.03% / 837.39 Kpkt/sec               total_pps    : 846.96 Kpkt/sec
+    async_util.  : 0.05% / 1.76 KB/sec                   drop_rate    : 0 b/sec
+                                                         queue_full   : 42,750,771 pkts
+
     Port Statistics
-    
-       port    |         0         |         1         |         2         |         3         |       total       
+
+       port    |         0         |         1         |         2         |         3         |       total
     -----------+-------------------+-------------------+-------------------+-------------------+------------------
-    owner      |              root |              root |              root |              root |                   
-    link       |                UP |                UP |                UP |                UP |                   
-    state      |      TRANSMITTING |      TRANSMITTING |      TRANSMITTING |      TRANSMITTING |                   
-    speed      |           10 Gb/s |           10 Gb/s |           10 Gb/s |           10 Gb/s |                   
-    CPU util.  |            99.89% |            99.89% |            99.89% |            99.89% |                   
-    --         |                   |                   |                   |                   |                   
-    Tx bps L2  |       612.76 Mbps |       613.07 Mbps |       612.52 Mbps |       612.77 Mbps |         2.45 Gbps 
-    Tx bps L1  |       646.64 Mbps |       646.96 Mbps |        646.4 Mbps |       646.64 Mbps |         2.59 Gbps 
-    Tx pps     |       211.72 Kpps |        211.8 Kpps |       211.73 Kpps |       211.71 Kpps |       846.96 Kpps 
-    Line Util. |            6.47 % |            6.47 % |            6.46 % |            6.47 % |                   
-    ---        |                   |                   |                   |                   |                   
-    Rx bps     |         1.21 Gbps |     \u25bc\u25bc\u25bc 23.03 bps |         1.21 Gbps |          5.94 bps |         2.42 G    bps 
-    Rx pps     |       418.59 Kpps |          0.04 pps |       418.77 Kpps |          0.01 pps |       837.36 Kpps 
-    ----       |                   |                   |                   |                   |                   
-    opackets   |           5227126 |           5227271 |           5432528 |           5432354 |          21319279 
-    ipackets   |          10526000 |                 5 |          10527054 |                 4 |          21053063 
-    obytes     |        1890829910 |        1891039152 |        1965259162 |        1965124338 |        7712252562 
-    ibytes     |        3807894454 |               320 |        3808149896 |               256 |        7616044926 
-    tx-pkts    |        5.23 Mpkts |        5.23 Mpkts |        5.43 Mpkts |        5.43 Mpkts |       21.32 Mpkts 
-    rx-pkts    |       10.53 Mpkts |            5 pkts |       10.53 Mpkts |            4 pkts |       21.05 Mpkts 
-    tx-bytes   |           1.89 GB |           1.89 GB |           1.97 GB |           1.97 GB |           7.71 GB 
-    rx-bytes   |           3.81 GB |             320 B |           3.81 GB |             256 B |           7.62 GB 
-    -----      |                   |                   |                   |                   |                   
-    oerrors    |                 0 |                 0 |                 0 |                 0 |                 0 
-    ierrors    |           133,370 |                 0 |           132,529 |                 0 |           265,899 
+    owner      |              root |              root |              root |              root |
+    link       |                UP |                UP |                UP |                UP |
+    state      |      TRANSMITTING |      TRANSMITTING |      TRANSMITTING |      TRANSMITTING |
+    speed      |           10 Gb/s |           10 Gb/s |           10 Gb/s |           10 Gb/s |
+    CPU util.  |            99.89% |            99.89% |            99.89% |            99.89% |
+    --         |                   |                   |                   |                   |
+    Tx bps L2  |       612.76 Mbps |       613.07 Mbps |       612.52 Mbps |       612.77 Mbps |         2.45 Gbps
+    Tx bps L1  |       646.64 Mbps |       646.96 Mbps |        646.4 Mbps |       646.64 Mbps |         2.59 Gbps
+    Tx pps     |       211.72 Kpps |        211.8 Kpps |       211.73 Kpps |       211.71 Kpps |       846.96 Kpps
+    Line Util. |            6.47 % |            6.47 % |            6.46 % |            6.47 % |
+    ---        |                   |                   |                   |                   |
+    Rx bps     |         1.21 Gbps |     \u25bc\u25bc\u25bc 23.03 bps |         1.21 Gbps |          5.94 bps |         2.42 G    bps
+    Rx pps     |       418.59 Kpps |          0.04 pps |       418.77 Kpps |          0.01 pps |       837.36 Kpps
+    ----       |                   |                   |                   |                   |
+    opackets   |           5227126 |           5227271 |           5432528 |           5432354 |          21319279
+    ipackets   |          10526000 |                 5 |          10527054 |                 4 |          21053063
+    obytes     |        1890829910 |        1891039152 |        1965259162 |        1965124338 |        7712252562
+    ibytes     |        3807894454 |               320 |        3808149896 |               256 |        7616044926
+    tx-pkts    |        5.23 Mpkts |        5.23 Mpkts |        5.43 Mpkts |        5.43 Mpkts |       21.32 Mpkts
+    rx-pkts    |       10.53 Mpkts |            5 pkts |       10.53 Mpkts |            4 pkts |       21.05 Mpkts
+    tx-bytes   |           1.89 GB |           1.89 GB |           1.97 GB |           1.97 GB |           7.71 GB
+    rx-bytes   |           3.81 GB |             320 B |           3.81 GB |             256 B |           7.62 GB
+    -----      |                   |                   |                   |                   |
+    oerrors    |                 0 |                 0 |                 0 |                 0 |                 0
+    ierrors    |           133,370 |                 0 |           132,529 |                 0 |           265,899