A Novel Re-Route Method on Network topology

Abstract

Today the world is rapidly transmuting and technology is zooming exponentially, the number of users of internet is additionally incrementing rapidly which cause increase in traffic and causes more no of failures in transmission of packets. The backbone process of the ecumenical internet or any internal network is Routing. Subsisting routing techniques includes static and dynamic routing which are implemented utilizing routing algorithms like RIP, EIGRP, OSPF, and IS-IS. These routing algorithms perspicaciously route the packets on the network. There are many scenarios where a packet is sent, the routing algorithm finds a felicitous path for the packet, routes it and it is distributed. There are cases where packets do not get distributed because of many reasons like link failures. A method to find an alternate path, after a link failure, from a source node to a destination node, afore the Interior Gateway Protocol (e.g., OSPF or IS-IS) reroutes the packet by notifying the sender which takes about 100ms. A more perspicacious way to distribute the packet is to reroute the packets from the last prosperous node. In this method an alternate route is ascertained instantly after a node failure, and updating the routing table of other nodes according to the incipient route. The target application (up to tens of nodes) accesses the sub-network of an accommodation provider’s network, which is a typical scale, encountered in practice; an accommodation provider typically has many such minute regional access networks. The expeditious reroute method would establish an incipient path from the source to destination in a much lesser time than the subsisting system i.e. IGP (OSPF).

Keyword: OSPF; Re-Routing; Routing; IS-IS; Reconvergence.