Nssa - 3Com 8807 Command Reference Manual

444 C 25: OSPF C C
HAPTER ONFIGURATION OMMANDS
ip-mask: IP address wildcard (similar to the complement of the IP address mask),
which also supports IP address mask input.
Description
Use the network command to configure the interfaces running OSPF.
Use the undo network command to cancel the interfaces running OSPF.
By default, interfaces do not belong to any OSPF 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 main IP
address of this interface must belong to the network segment specified by this
command. If only the secondary IP address of the interface is in the range of the
network segment specified by this command, this interface will not run OSPF.
Related command: ospf.
Example
# Specify the interfaces whose main IP addresses are in the segment range of
10.110.36.0 to run OSPF and specify the number of the OSPF area (where these
interfaces are located) as 6.
[3Com-ospf-1] area 6
[3Com-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: Imports default route to NSSA area.
no-import-route: Configures not to import route to NSSA area.
no-summary: ABR is disabled to transmit Summary_net LSAs to the NSSA area.
Description
Use the nssa command to configure the type of an OSPF area as a NSSA area.
Use the undo nssa command to cancel the function.
By default, NSSA area is not configured.
For all the routers connected to the NSSA area, the command nssa must be used
to configure the area as the NSSA attribute.
The default-route-advertise keyword is used to generate default type-7 LSA. No
matter whether there is route 0.0.0.0 in routing table on ABR, type-7 LSA default