Dell Force10 S25-01-GE-24V FTOS 8.4.2.7 Command Line Reference Guide for E-Ser - Page 1005

38 Open Shortest Path First (OSPFv2 and OSPFv3) Overview Open Shortest Path First version 2 for IPv4 is supported on platforms c e s Open Shortest Path First version 3 (OSPFv3) for IPv6 is supported on platforms c e Note: The C-Series supports OSPFv3 with FTOS version 7.8.1.0 and later. OSPF is an Interior Gateway Protocol (IGP), which means that it distributes routing information between routers in a single Autonomous System (AS). OSPF is also a link-state protocol in which all routers contain forwarding tables derived from information about their links to their neighbors. The fundamental mechanisms of OSPF (flooding, DR election, area support, SPF calculations, etc.) are the same for OSPFv2 and OSPFv3. OSPFv3 runs on a per-link basis instead of on a per-IP-subnet basis. This chapter is divided into 2 sections. There is no overlap between the two sets of commands. You cannot use an OSPFv2 command in the IPv6 OSPFv3 mode. • OSPFv2 Commands • OSPFv3 Commands Note: FTOS version 7.8.1.0 introduces Multi-Process OSPF on IPv4 (OSPFv2) only. It is not supported on OSPFv3 (IPv6). Note that the CLI now requires that the Process ID be included when entering the ROUTER-OSPF mode. Each command entered applies to the specified OSPFv2 process only. OSPFv2 Commands The Dell Force10 implementation of OSPFv2 is based on IETF RFC 2328. The following commands enable you to configure and enable OSPFv2. • area default-cost • area nssa • area range • area stub • area virtual-link • auto-cost Open Shortest Path First (OSPFv2 and OSPFv3) | 1005