OBS: This only needs to be done once after the system is booted.
Simply run:
sudo ./configure-dpdk.sh do
To bind interfaces to default driver again (without DPDK), just run:
sudo ./configure-dpdk.sh undo
To bind the Intel NIC to DPDK, just run:
sudo ./configure-intel.sh do
To bind the Netronome SmartNIC to DPDK, run:
sudo ./configure-netronome.sh do
Both scripts also support the undo argument, to put all interfaces back to their default drivers.
If you want to send packets between interfaces without using DPDK, it is necessary to use network namespaces. To create two namespaces and assign one NIC for each, run:
./create-namespaces do
To destroy the namespaces and set the interfaces back to the global one:
./create-namespaces undo
If pktgen-DPDK is not installed yet, follow instructions from pktgen's manual.
!!! - Make sure configure the system for DPDK before following the next steps.
If pktgen is located at /usr/src/pktgen-3.5.9, run the following commands to start the traffic generator:
cd /usr/src/pktgen-3.5.9
./app/x86_64-native-linuxapp-gcc/pktgen -l 0-3 -n 4 -- -T -m 2.0,3.1 -P
This will initialize the generator with two ports (0 and 1) and processors 2 and 3 allocated for ports 0 and 1, respectively.
When initialized, pktgen's CLI will look like this:
cd <ebpflow-nsdi-dir>
/usr/src/pktgen-3.5.9/app/x86_64-native-linuxapp-gcc/pktgen -l 0-3 -n 4 -- -P -T -m 2.0,3.1 -f ./send-packet.pkt
-
Set packet size on port 0
Pktgen:/> set 0 size <pkt-size> -
Set packet count on port to 1000
Pktgen:/> set <port> count 1000 -
Start generating traffic at port 0
Pktgen:/> start 0 -
Stop traffic generation at port 0
Pktgen:/> stop 0 -
Send ARP request on port 0
Pktgen:/> start 0 arp request -
See port statistics
Pktgen:/> page stats -
Go back to main page
Pktgen:/> page main -
See list of all available commands
Pktgen:/> help
Some examples require specific traffic profiles or some setup before starting the tests, like filling learningswitch's tables.
Such examples have specific setup scripts, contained in this repo as setup-<example name>.lua
To test these, inside pktgen do the following:
script setup-<example name>.lua
script <test script>.lua