Owner's Manual

Chapter 25. OSPFv3 | 689
NETGEAR 8800 User Manual
Note: Two types of OSPFv3 functionality are available and each has a
different licensing requirement. One is the complete OSPFv3
functionality and the other is OSPFv3 Edge Mode, a subset of
OSPFv3 that is described below. See
Appendix A, XCM8800
Software Licenses for specific information regarding OSPFv3
licensing.
OSPFv3 Edge Mode
OSPFv3 Edge Mode is a subset of OSPFv3 available on platforms with an Advanced Edge
license. There are two restrictions on OSPFv3 Edge Mode:
• At most, four Active OSPFv3 VLAN interfaces are permitted. There is no restriction on the
number of Passive interfaces.
• The OSPFv3 Priority on VLANs is 0, and is not configurable. This prevents the system
from acting as a DR or BDR
Link State Database
Upon initialization, each router transmits a link state advertisement (LSA) on each of its
interfaces. LSAs are collected by each router and stored into the LSDB of each router. After
all LSAs are received, the router uses the LSDB to calculate the best routes for use in the IP
routing table. OSPFv3 uses flooding to distribute LSAs between routers. Any change in
routing information is sent to all of the routers in the network. All routers within an area have
the exact same LSDB.
Table 69 describes LSA type numbers.
Table 69. Selected OSPFv3 LSA Types
Type Number Description
0x0008 Link LSA
0x2001 Router LSA
0x2002 Network LSA
0x2003 Inter-Area-Prefix LSA
0x2004 Inter-Area-Router LSA
0x2009 Intra-Area-Prefix LSA
0x4005 AS external LSA