Huawei Quidway S8500 Series User Manual

Command Manual – Routing Protocol
Quidway S8500 Series Routing Switches Chapter 3 OSPF Configuration Commands
Huawei Technologies Proprietary
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3.1.35 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 route
will be generated always. Only when there is route 0.0.0.0 in routing table on ASBR, will
type-7 LSA default route be generated.
On ASBR, the no-import-route keyword enables the external route imported by OSPF
through import-route command not to be advertised to NSSA area.
Example
# Configure area 1 as a NSSA area.
[Quidway-ospf-1] area 1
[Quidway-ospf-1-area-0.0.0.1] network 36.0.0.0 0.255.255.255
[Quidway-ospf-1-area-0.0.0.1] nssa
3.1.36 ospf
Syntax
ospf [ process-id [ router-id router-id | vpn-instance vpn-instance-name] ]
undo ospf [ process-id ]

Huawei Quidway S8500 Series Specifications

General

Brand	Huawei
Model	Quidway S8500 Series
Category	Switch
Language	English