D-Link DES-3326SRM Product Manual - Page 192

D-Link DES-3326S Layer 3 Switch Area Aggregation Configuration Area Aggregation allows all of the routing information that may be contained within an area to be aggregated into a summary LSDB advertisement of just the network address and subnet mask. This allows for a reduction in the volume of LSDB advertisement traffic as well as a reduction in the memory overhead in the Switch used to maintain routing tables. Click the OSPF Area Aggregation Settings link to view the current settings. There are no aggregation settings configured by default, so there will not be any listed the first accessing the menu. To configure OSPF Area Aggregation on the switch, click the Area Aggregation Configuration link in the OSPF folder: Figure 24- 12. OSPF Aggregation Configuration To add an OSPF Area Aggregation entry on the switch, click the New button: Figure 24- 13. OSPF Aggregation Configuration − Add Specify the OSPF Aggregation settings and click the Apply button to add or change the settings. The following settings for OSPF Area Aggregation can be set or are displayed:: Parameter Description Area ID Network Number Network Mask LSDB Type Advertisement Allows the entry the OSPF Area ID for which the routing information will be aggregated. This Area ID must be previously defined on the Switch. Sometimes called the Network Address. The 32-bit number in the form of an IP address that uniquely identifies the network that corresponds to the OSPF Area above. The subnet mask used for the OSPF Area. Specify the type of address aggregation. Choose Summary or NSSA-Ext. Select Enabled or Disabled to determine whether the selected OSPF Area will advertise it's summary LSDB (Network-Number and Network-Mask). 182