TPACKETv3 Virtual Patch (single-thread)

A demonstation of a virtual patch between two nodes.

  • GitHub Link: https://github.com/packetcord/packetcord.io/tree/main/apps/l2_tpacketv3_patch
  • Topology File: topology_examples/l2_patch.json

Topology diagram

TOP

Steps

Build the project (all examples)

cd packetcord.io
mkdir build
cd build
cmake .. --fresh
make

Start the topology

Load the exampe topology project file.

Then, left click on the Patch container. Inside the Properties panel, set the Network App field to point to the location of the app: /home/ubuntu/packetcord/sdk/packetcord.io/build/apps/l2_tpacketv3_patch/l2_tpacketv3_patch_app

Save the file (overwrite or select new filename and/or new location), Validate, Generate and Launch the topology and open the container shell.

TOP

Inside the container, run the following commands:

cd /root
./l2_tpacketv3_patch_app

Result

Open the shells of Node A and Node B. Try to ping each other (172.16.111.1 and 172.16.111.2).

PING 172.16.111.1 (172.16.111.1): 56 data bytes
64 bytes from 172.16.111.1: seq=0 ttl=64 time=3.795 ms
64 bytes from 172.16.111.1: seq=1 ttl=64 time=2.764 ms
64 bytes from 172.16.111.1: seq=2 ttl=64 time=3.742 ms
64 bytes from 172.16.111.1: seq=3 ttl=64 time=2.772 ms

Let's also run iperf3 between Node A (server) and Node B (client):

On Node A

iperf3 -s

On Node B

iperf3 -c 172.16.111.1

Connecting to host 172.16.111.1, port 5201
[  5] local 172.16.111.2 port 39392 connected to 172.16.111.1 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec   447 MBytes  3.74 Gbits/sec    0   3.89 MBytes       
[  5]   1.00-2.00   sec   459 MBytes  3.85 Gbits/sec    0   3.89 MBytes       
[  5]   2.00-3.00   sec   488 MBytes  4.09 Gbits/sec    0   3.89 MBytes       
[  5]   3.00-4.00   sec   490 MBytes  4.11 Gbits/sec    0   3.89 MBytes       
[  5]   4.00-5.00   sec   489 MBytes  4.11 Gbits/sec    0   3.89 MBytes       
[  5]   5.00-6.00   sec   491 MBytes  4.12 Gbits/sec    0   3.89 MBytes       
[  5]   6.00-7.00   sec   490 MBytes  4.11 Gbits/sec    0   3.89 MBytes       
[  5]   7.00-8.00   sec   490 MBytes  4.11 Gbits/sec    0   3.89 MBytes       
[  5]   8.00-9.00   sec   490 MBytes  4.11 Gbits/sec    0   3.89 MBytes       
[  5]   9.00-10.00  sec   488 MBytes  4.09 Gbits/sec    0   3.89 MBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  4.71 GBytes  4.04 Gbits/sec    0            sender
[  5]   0.00-10.01  sec  4.71 GBytes  4.04 Gbits/sec                 receiver

Terminate

Use the Destroy button to terminate the emulation.