Netgear XCM89UP User Manual Software Version 11.x - Page 414

M6100, M5300, and M7100 Series Managed Switches Table 154. OSPF AS Opaque 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: • Area Opaque • AS Opaque • Link Opaque 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 OSPF Virtual Link  To configure the OSPF virtual link: 1. Prepare your computer with a static IP address in the 169.254.100.0 subnet, for example, 169.254.100.201. 2. Connect an Ethernet cable from an Ethernet port on your computer to an Ethernet port on the switch. 3. Launch a web browser. 4. Enter the IP address of the switch in the web browser address field. The default IP address of the switch is 169.254.100.100. The Login screen displays. 5. Enter the user name and password. The default admin user name is admin and the default admin password is blank, that is, do not enter a password. 6. Click the Login button. The web management interface menu displays. 7. Select Routing > OSPF > Advanced > Virtual Link Configuration. OSPF and OSPFv3 414