BLADEOS 6.3 Application Guide
BMD00178, April 2010
17
OSPFv3
BLADEOS supports the Open Shortest Path First (OSPF) version 2 and version 3 routing protocols.
The OSPFv3implementation conforms to the OSPF version 2 specifications detailed in Internet
RFC 1583, and OSPF version 3 specifications in RFC 2328 Appendix G.2 and RFC 2740.
OSPF version 3 is based on OSPF version 2, but has been modified to support IPv6 addressing. In
most other ways, OSPFv3 is similar to OSPFv2: They both have the same packet types and
interfaces, and both use the same mechanisms for neighbor discovery, adjacency formation, LSA
flooding, aging, and so on. The administrator should be familiar with the OSPFv2 concepts covered
in the preceding sections of this chapter before implementing the OSPFv3 differences as described
in the following sections.
Although OSPFv2 and OSPFv3 are very similar, they represent independent features on the
GbESM. They are configured separately, and both can run in parallel on the switch with no relation
to one another, serving different IPv6 and IPv4 traffic, respectively.
OSPFv3 command paths are located as follows:
OSPFv3 has numerous improvements that increase the protocol efficiency in addition to supporting
IPv6 addressing. These improvements change some of the behaviors in the OSPFv3 network and
may affect topology consideration, but have little direct impact on configuration. For example:
Addressing fields have been removed from Router and Network LSAs.
Link-local flooding scope has been added, along with a Link LSA. This allows flooding infor-
mation to relevant local neighbors without forwarded it beyond the local router.
Flexible treatment of unknown LSA types to make integration of OSPFv3 easier.
BLADEOS 6.3 does not currently support the following OSPFv3 features:
Multiple instances of OSPFv3 on one IPv6 link.
Authentication via IPv6 Security (IPsec)
>> # /cfg/l3/ospf3
(OSPFv3 config menu)
>> # /info/l3/ospf3
(OSPFv3 information menu)
>> # /stats/l3/ospf3
(OSPFv3 statistics menu)
