Configuration of Routing Protocols on Routers using Quagga

With the increasing number of devices being connected to the network, efficient connection of those devices to the network is very important. The routing protocols have evolved through time. I have used Mininet and Quagga to implement the routing protocols in a topology with ten routers and eleven host machines. Initially the basic configuration of the routers is done to bring its interfaces administratively up and the IP addresses are assigned. Static routes are configured on the routers using Quagga zebra daemons. With the amount of overhead observed, static protocol is replaced with RIPv2 using the Quagga ripd daemon and the features of RIPv2 are implemented like MD5 authentication and split horizon. RIPv2 is replaced with OSPF routing protocol. The differences between static and dynamic protocol are observed. Complex OSPF applications are implemented using the Quagga ospfd daemon. The best route to the neighboring routers is changed using the OSPF cost attribute. Next the networks in the lab are 
assumed to belong to different autonomous systems and BGP is implemented using the Quagga bgpd daemon. The routing updates are filtered using the access list attributes. The path to the neighboring routers is changed using BGP metrics such as MED, weight, AS_PATH and local_pref. Load balancing is also implemented and the results are verified using traceroute and routing tables.