D-Link DGS-3612G Product Manual - Page 233

xStack® DGS-3600 Series Layer 3 Managed Gigabit Ethernet Switch OSPF Area Settings This window allows the configuration of OSPF Area IDs and to designate these areas as Normal, Stub or NSSA. Normal OSPF areas allow Link-State Database (LSDB) advertisements of routes to networks that are external to the area. Stub areas do not allow the LSDB advertisement of external routes. Stub areas use a default summary external route (0.0.0.0 or Area 0) to reach external destinations. To set up an OSPF area configuration, click Layer 3 Features > OSPF > OSPF > OSPF Area Settings, as shown below: Figure 4- 53. OSPF Area Settings window To add an OSPF Area to the table, type a unique Area ID (see below) select the Type from the drop-down menu. For a Stub type, choose Enabled or Disabled from the Stub Summary drop-down menu and determine the Metric. Click the Add/Modify button to add the area ID set to the table. To remove an Area ID configuration set, simply click in the Delete column for the configuration. To change an existing set in the list, type the Area ID of the set you want to change, make the changes and click the Add/Modify button. The modified OSPF area ID will appear in the table. Figure 4- 54. OSPF Area Settings example window See the parameter descriptions below for information on the OSPF Area Settings window. To remove an entry from the table, click its corresponding under the Delete heading. The Area ID settings are as follows: Parameter Description Area ID A 32-bit number in the form of an IP address (xxx.xxx.xxx.xxx) that uniquely identifies the OSPF area in the OSPF domain. Type This field can be toggled between Normal, Stub and NSSA using the pull-down menu. When it is toggled to Stub, the additional field Stub Summary will then be capable of being configured. Choosing NSSA allows the NSSA Summary field and the Translate field to be configured. 217