Chapter 23 Ospfv3 Commands - Alcatel-Lucent OmniSwitch 6850-48 Cli Reference Manual

23 OSPFv3 Commands
Open Shortest Path First version 3 (OSPFv3) routing is a shortest path first (SPF) or link-state protocol.
This protocol is compatible with 128-bit IPv6 address space, while OSPF is compatible with 32-bit IPv4
address space. OSPFv3 is an interior gateway protocol (IGP) that distributes routing information between
routers in a single autonomous system (AS). OSPFv3 chooses the least-cost path as the best path.
Each participating router distributes its local state (i.e., the router's usable interfaces and reachable neigh-
bors) throughout the AS by flooding. In a link-state protocol, each router maintains a database describing
the entire AS topology. This database is built from the collected link state advertisements of all routers.
Each multi-access network that has at least two attached routers has a designated router and a backup
designated router. The designated router floods a link state advertisement for the multi-access network and
has other special responsibilities.
OSPFv3 allows collections of contiguous networks and hosts to be grouped together. A group, together
with the routers having interfaces to any one of the included networks, is called an area. Each area runs a
separate copy of the basic link-state routing algorithm. This means that each area has its own topological
database, as explained in the previous section.
Note. OSPFv3 is supported only on OmniSwitch 6850 Series, OmniSwitch 6855, OmniSwitch 6850E
Series, and 9000E switches.
Alcatel-Lucent's version of OSPFv3 complies with RFCs 2740, 1826, 1827, 2553, 2373, 2374, and 2460.
MIB information for OSPFv3 is as follows:
Filename: AlcatelIND1DrcTm.mib
Module: ALCATEL-IND1-DRCTM-MIB
Filename: AlcatelIND1Ospf3.mib
Module: ALCATEL-IND1-OSPF3-MIB
Filename: IETF-OSPF-OSPFv3.MIB
Module: OSPF-OSPFv3-MIB
OmniSwitch CLI Reference Guide June 2012 page 23-1