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BLADEOS 6.5.2 Application Guide
298 Chapter 20: OSPF BMD00220, October 2010
OSPFv3 Implementation in BLADEOS
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 G8124.
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 Differences from OSPFv2
Note – When OSPFv3 is enabled, the OSPF backbone area (0.0.0.0) is created by default and is
always active.
OSPFv3 Requires IPv6 Interfaces
OSPFv3 is designed to support IPv6 addresses. This requires IPv6 interfaces to be configured on the
switch and assigned to OSPF areas, in much the same way IPv4 interfaces are assigned to areas in
OSPFv2. This is the primary configuration difference between OSPFv3 and OSPFv2.
See “Internet Protocol Version 6” on page 229 for configuring IPv6 interfaces.