Netgear XSM4324FS User Manual - Page 411

M4300 Intelligent Edge Series Fully Managed Stackable Switches Table 149. Advanced OSPFv3 External Link State Database Table (continued) Field LSA Type LS ID Age Sequence Checksum Description 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. The link state ID identifies the piece of the routing domain that is being described by the advertisement. The value of the LS ID depends on the advertisement's LS type. The time since the link state advertisement was first originated, in seconds. The sequence number field is a signed 32-bit integer. It is used to detect old and duplicate link state advertisements. The larger the sequence number, the more recent the advertisement. The checksum is used to detect data corruption of an advertisement. This corruption can occur while an advertisement is being flooded, or while it is being held in a router's memory. This field is the checksum of the complete contents of the advertisement, except the LS age field. Configure the OSPFv3 Virtual Link To configure the OSPFv3 virtual link: 1. Launch a web browser. 2. In the address field of your web browser, enter the IP address of the switch. The login window opens. 3. Enter admin as the user name, enter your local device password, and click the Login button. Configure OSPF and OSPFv3 411 User Manual