Virtual Patch (multi-thread)

A demonstation of a virtual patch between two nodes.

  • GitHub Link: https://github.com/packetcord/packetcord.io/tree/main/apps/l2_patch_workers
  • 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_patch_workers/l2_patch_workers_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_patch_workers_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=0.054 ms
64 bytes from 172.16.111.1: seq=1 ttl=64 time=0.040 ms
64 bytes from 172.16.111.1: seq=2 ttl=64 time=0.036 ms
64 bytes from 172.16.111.1: seq=3 ttl=64 time=0.039 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 36536 connected to 172.16.111.1 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec   344 MBytes  2.89 Gbits/sec  1756    153 KBytes       
[  5]   1.00-2.00   sec   392 MBytes  3.29 Gbits/sec  1872    110 KBytes       
[  5]   2.00-3.00   sec   391 MBytes  3.28 Gbits/sec  1649    106 KBytes       
[  5]   3.00-4.00   sec   392 MBytes  3.28 Gbits/sec  1658    110 KBytes       
[  5]   4.00-5.00   sec   392 MBytes  3.29 Gbits/sec  1689    103 KBytes       
[  5]   5.00-6.00   sec   389 MBytes  3.27 Gbits/sec  1886    105 KBytes       
[  5]   6.00-7.00   sec   388 MBytes  3.26 Gbits/sec  1793    107 KBytes       
[  5]   7.00-8.00   sec   391 MBytes  3.28 Gbits/sec  1670    102 KBytes       
[  5]   8.00-9.00   sec   392 MBytes  3.29 Gbits/sec  1792    105 KBytes       
[  5]   9.00-10.00  sec   391 MBytes  3.28 Gbits/sec  1691    103 KBytes       
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  3.77 GBytes  3.24 Gbits/sec  17456            sender
[  5]   0.00-10.00  sec  3.77 GBytes  3.24 Gbits/sec                   receiver

Terminate

Use the Destroy button to terminate the emulation.