Netgear XCM89UP User Manual Software Version 11.x - Page 444

M6100, M5300, and M7100 Series Managed Switches Table 164. Advanced OSPFv3 Link State Database (continued) Field Description Options The Options field in the link state advertisement header indicates which optional capabilities are associated with the advertisement. The options are as follows: • Q. This enables support for QoS traffic engineering. • E. This describes the way AS-external LSAs are flooded. • MC. This describes the way IP multicast datagrams are forwarded according to the standard specifications. • O. This describes whether opaque LSAs are supported. • V. This describes whether OSPF++ extensions for VPN/COS are supported. Router Options The router-specific options. The following table describes the nonconfigurable data that is displayed in the External Link State Database (LSDB) table. Table 165. Advanced OSPFv3 External Link State Database Table Field Router ID LSA Type Description The 32-bit integer in dotted-decimal format that uniquely identifies the router within the autonomous system (AS). The router ID is set on the OSPFv3 Configuration screen. To change the router ID you must first disable OSPFv3. After you set the new router ID, you must reenable OSPFv3 for the change to take effect. The default value is 0.0.0.0, although this is not a valid router ID. The format and function of the link state advertisement. LSA Type is one of the following: • Router LSA. A router can originate one or more router LSAs for a given area. Each router LSA originated in an area describes the collected states of all the router's interfaces to the area. • Network LSA. A network LSA is originated for every link having two or more attached routers, by the designated router. It lists all the routers attached to the link. • Inter-Area Router LSA. This type describes a prefix external to the area, yet internal to the autonomous system. It is originated by an area border router. • AS-External LSA. This LSA type describes a path to a prefix external to the autonomous system and is originated by an autonomous system border router. • Link LSA. A router originates a separate link LSA for each attached link. It provides router's link local address to routers attached to the link and also inform them of a list of IPv6 prefixes to associate with the link. • Intra-Area-Prefix LSA. A link's designated router originates one or more intraarea-prefix LSAs to advertise the link's prefixes throughout the area. A router can originate multiple intra-area-prefix LSAs for a given area to advertise its own prefixes and those of its attached stub links. OSPF and OSPFv3 444