Course Overview:
An advanced class on large-scale OSPF network design and implementation with Riverstone routers. The class focuses on the best current practices service providers employ in their OSPF networks and highlights the significant differences between Enterprise and Service Provider use of OSPF.
Students will receive detailed exposure and extensive hands-on exercises on the following:

• OSPF Protocol Design
          Link-State vs. Distance-Vector IGPs, IGPs vs. EGPs
          HELLO Protocol and Neighbor State Machine
          OSPF and different network types
          LSAs, LSDB, flooding, convergence implications
• OSPF Hierarchy
          Reasons for hierarchy
          Reasons for NOT having hierarchy
          Area types
          OSPF configuration tasks in different area types
          Handling of externals, redistribution, interaction with BGP
• OSPF Tracing, Troubleshooting, and Tuning
         RS Route selection mechanisms (RIB, FIB, and policies)
         Manipulating convergence times
         Tracing and troubleshooting OSPF on the RS
         Troubleshooting common OSPF problems - adjacencies, duplicate router IDs, etc.
• OSPF Design Guidelines
         Scaling OSPF domains
         Scaling beyond OSPF domains
         IP addressing considerations
         OSPF metric, Equal-cost multi-path routing
         Analysis of OSPF behavior on different link layers
• Case Studies
         How service providers have successfully used/abused OSPF to scale their networks

Course Prerequisites:
All students are expected to have completed RRAC (Riverstone Router Architecture & Configuration) course and have prior experience with routers and/or switch routers, as well as working knowledge of:
• The OSI reference model
• TCP/IP protocol stack
• IP Subnetting
• IP routing and routing protocols
• LAN/WAN topologies
• VLANs