<P style="MARGIN: 0px">This is the first single source for mastering all the routing protocols and configurations needed to work with Cisco IOS, IOS XE, and IOS XR operating systems. Bringing together content previously spread across multiple sources and Cisco Press titles, it covers updated standards and features found in enterprise and service provider environments.</P> <P style="MARGIN: 0px"> <BR>IP Routing on Cisco IOS, IOS XE, and IOS XR begins with a brief introduction to each operating system; primers on IP addressing, routing logic, and static routing; and discussions of the routing protocols EIGRP, OSPF, ISIS, and BGP for IPv4 and IPv6. Next, it carefully explains several important advanced topics, including route redistribution, route manipulation, multicast for IPv4 and IPv6, and High Availability (HA)/fast convergence.</P> <P style="MARGIN: 0px"> <BR>All protocols are presented conceptually, with applicable illustrations, configurations, and appropriate output. To help IOS users master IOS XR, differences between the two operating systems are explicitly identified, and side-by-side command references are presented for each feature.<BR>Content was created in alignment with , responding to more efficient self-study content for the Cisco Career Certifications within CCNA/CCNP/CCIE Service Provider, Cisco IOS XR Specialist Certification, and the routing components of several other Cisco Certifications (such as CCNA/CCNP/CCIE Routing and Switching).</P> <P style="MARGIN: 0px"> </P>