3Com 5500G-EI Command Reference Guide - Page 204

204 CHAPTER 6: USING ROUTING PROTOCOL COMMANDS ip_mask Enter the IP address mask or IP address wildcard shielded text (similar to the complement of the IP address mask). Description Using the network command, you can configure the interface running OSPF protocol to which the interface belongs. Using the undo network command, you can cancel the interface running OSPF. By default, the interface does not belong to any area. With the two parameters, ip_address and ip_mask, one or more interfaces can be configured as an area. To run the OSPF protocol on one interface, the master IP address of this interface must be in the range of the network segment specified by this command. If the slave IP address of the interface is in the range of the network segment specified by this command, this interface will not run OSPF protocol. Related command: ospf. Example To configure the interfaces whose master IP addresses are in the segment range of 10.110.36.0 to run the OSPF protocol, and to specify the number of the OSPF area where these interfaces are located as 6, enter the following: system-view System View: return to User View with Ctrl+Z. [SW5500]router id 1.1.1.1 [SW5500]ospf [SW5500-ospf-1]area 6 [SW7700-ospf-1-area-0.0.0.6]network 10.110.36.0.0 0.0.0.255 nssa Syntax nssa [ default-route-advertise ] [ no-import-route ] [ no-summary ] undo nssa View OSPF Area view Parameter default-route-advertise Enter to import the default route to the NSSA area. no-import-route Enter to block the import of the default route to the NSSA area. no-summary Enter to disable ABR from transmitting summary_net LSAs to the NSSA area. Description Using the nssa command, you can configure the type of an OSPF area as an NSSA area. Using the undo nssa command, you can cancel the function. By default, NSSA area is not configured.