DPDK 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_dpdk_patch
  • Topology File: topology_examples/l2_dpdk_patch.json

Topology diagram

TOP

Steps

Build the project (all examples)

cd packetcord.io
mkdir build
cd build
cmake -DENABLE_DPDK_DATAPLANE=ON .. --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_dpdk_patch/l2_dpdk_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_dpdk_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=0.071 ms
64 bytes from 172.16.111.1: seq=1 ttl=64 time=0.047 ms
64 bytes from 172.16.111.1: seq=2 ttl=64 time=0.038 ms
64 bytes from 172.16.111.1: seq=3 ttl=64 time=0.043 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 46630 connected to 172.16.111.1 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-1.00   sec   651 MBytes  5.45 Gbits/sec   52   1.41 MBytes
[  5]   1.00-2.00   sec   621 MBytes  5.21 Gbits/sec    2   1.37 MBytes
[  5]   2.00-3.00   sec   624 MBytes  5.24 Gbits/sec    2   1.32 MBytes
[  5]   3.00-4.00   sec   606 MBytes  5.08 Gbits/sec    1   1.27 MBytes
[  5]   4.00-5.00   sec   598 MBytes  5.02 Gbits/sec    2   1.21 MBytes
[  5]   5.00-6.00   sec   573 MBytes  4.81 Gbits/sec    7   1.12 MBytes
[  5]   6.00-7.00   sec   620 MBytes  5.21 Gbits/sec    1   1.07 MBytes
[  5]   7.00-8.00   sec   579 MBytes  4.85 Gbits/sec    0   1.41 MBytes
[  5]   8.00-9.00   sec   590 MBytes  4.95 Gbits/sec    1   1.36 MBytes
[  5]   9.00-10.00  sec   571 MBytes  4.79 Gbits/sec    1   1.28 MBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  5.89 GBytes  5.06 Gbits/sec   69            sender
[  5]   0.00-10.00  sec  5.89 GBytes  5.06 Gbits/sec                 receiver

Terminate

Use the Destroy button to terminate the emulation.