Alcatel-Lucent 060321-10, Rev. B, Справочное руководство CLI

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OmniSwitch CLI Reference Guide March 2011 page 18-1
18 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
are a. 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 10K Series 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