Netgear XCM8806 Chassis User Manual - Page 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 0x0008 0x2001 0x2002 0x2003 0x2004 0x2009 0x4005 Description Link LSA Router LSA Network LSA Inter-Area-Prefix LSA Inter-Area-Router LSA Intra-Area-Prefix LSA AS external LSA Chapter 25. OSPFv3 | 689