Enhanced Augmented IP Routing Protocol (EAIRP) in IPv6 Environment

Abstract

Data link level forwarding provides simple and fast packet forwarding capability. One primary reason for the simplicity of layer 2 forwarding comes from its short, fixed length labels. A node forwarding at network layer must parse a relatively large header, and perform a longest-prefix match to determine a forwarding path. When a node performs layer 2 forwarding, it can do direct index lookup into its forwarding table with the short header. It is arguably simpler to build layer 2 forwarding hardware that it is to build layer 3 forwarding hardware because the layer 2 forwarding function is less complex (Callon et al., 1997). By bypassing the conventional IP forwarding (the packet assembly/reassembly) process using cell-relaying, we could dramatically reduce both the IP packet processing delay and the queuing delay at the router (Esaki et al., 1997). The paper targets the problem of managing and reducing delays in IP over ATM communications that are associated with the implementation of IPv6 protocol.