Intra site routing (Example 2)
This example is very similar to the Example 1 except we add some path constraints to route web traffic via a specific path.
- First change the current directory to the example1 directory using the following command:
- cd OSDF-REACTIVE-APP/osdf-reactive/src/main/java/org/osdfreactive/tools/mininet/example1
2- Execute the following scripts from two separate terminals to setup a mininet simulation scenario which simulates a leaf-spine network topology, define a region of network swtiches that we call it siteA in this example, and post configuration details using REST API:
- sudo python leaf_spine.py
- leafspineregions.sh
- sudo python config.py
3- Deactivate onos reactive forwarding application using the following command:
- app deactivate org.onosproject.fwd
4- Suppose we want to configure the given network based on the following high level network policy:
- route web traffic in siteA via of:0000000000000191 using priority 100
To do so, we should execute the following commands from onos cli:
-
intra-route -a WEB -region siteA -p 100 -psa ON_DEMAND --via of:0000000000000191/1 policy1
- Note: psa option specifies path selection algorithm which is ON_DEMAND here to route a specific traffic through a set of network switches.
5- After the above steps, two hosts should be able to send web traffic to each other and the web traffic will routed via the switch with ID: of:0000000000000191.
6- For the testing purposes, you can use iperf from mininet command line to send TCP traffic on port 80 between two end hosts as follows:
- xterm h1
- xterm h4
- From h1 terminal: sudo iperf3 -s -p 80
- From h4 terminal: iperf3 -c 10.0.0.1 -t 100 -i 1 -p 80