This version of RouteFlow (RouteFlow) is responsible for demonstrate the behavior of a topology dynamically routed via BGP, where the Quagga engine (Quagga) is used with ExaBGP (ExaBGP) to route the topology used in this example.
To create the proposed environment, besides RouteFlow, Quagga and ExaBGP, it is also required to use Mininet (Mininet). The example of topology used in this case was “Four routers running OSPF” that can be find in the lik: https://sites.google.com/site/routeflow/documents/tutorial2-four-routers-with-ospf, where there was only a change in the rfvmA virtual machine, taking off Quagga and using ExaBGP instead.
This script creates lxc routers using config/ExaBGP configurations files. RfvmA configuration file creates a lxc that includes /etc/init.d/exabgp script that is responsible for start and stop ExaBGP engine.
This script is responsible for start the services RouteFlow topology.
After created and started RouteFlow services, Mininet should be used to mount the environment for testing. To verify the correct operation, you just have to examine the routing table of each lxc machine (rfvmA, rfvmB, rfvmC e rfvmD). Note that the route announced by ExaBGP and Quagga are different in rfvmA. For example:
Quagga: publishes 172.31.1.0/24
ExaBGP: publishes 172.31.1.100/32
There are four lxc routers, named rfvmA, rfvmB, rfvmC and rfvmD. RfvmB, C and D are running a Quagga router engine that uses BGP routing protocol to mount all route tables. RfvmA is running ExaBGP engine that is responsible to inject routes in B, C and D. RfvmA configuration file can be accessed in lxc rfvmA router, under /exabgp-3.1.10/etc/exabgp/exabgp.conf, but changes can be done at rfvmA configuration before running createExaBGP script.
RfvmA has a script /etc/init.d/exabgp that is responsible for start and stop ExaBGP service. This script configures correct IP addresses in lxc rfvmA interfaces, starts ExaBGP service using correct configuration file and puts statics routes to back communication to rfvmB, C and D. When it is used with stop parameter, all ExaBGP configuration is taked off.