Enterasys Networks 9034313-07 manual Area virtual-link, Default‐, Information‐, Originate

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area virtual-link

Parameters

area‐id

Specifies the NSSA area. Valid values are decimal values or IP addresses.

default‐

(Optional) Generates a default of Type 7 into the NSSA. This is used when

information‐

the router is an NSSA ABR.

originate

 

 

 

Defaults

If default‐information‐originate is not specified, no default type will be generated.

Mode

Router configuration: C3(su)‐>router(Config‐router)#

Usage

An NSSA allows some external routes represented by external Link State Advertisements (LSAs) to be imported into it. This is in contrast to a stub area that does not allow any external routes. External routes that are not imported into an NSSA can be represented by means of a default route. This configuration is used when an OSPF internetwork is connected to multiple non‐OSPF routing domains.

Example

This example shows how to configure area 10 as an NSSA area:

C3(su)->router(Config)#router ospf 1 C3(su)->router(Config-router)#area 10 nssa default-information-originate

area virtual-link

Use this command to define an OSPF virtual link, which represents a logical connection between the backbone and a non‐backbone OSPF area. The no form of this command removes the virtual link and/or its associated settings.

Syntax

area area-idvirtual-link router-idno area area-idvirtual-link router-id

In addition to the syntax above, the options for using this command are:

area area-idvirtual-link router-idauthentication-key key no area area-idvirtual-link router-idauthentication-key key

area area-idvirtual-link router-iddead-interval seconds

no area area-idvirtual-link router-iddead-interval seconds

area area-idvirtual-link router-idhello-interval seconds no area area-idvirtual-link router-idhello-interval seconds

area area-idvirtual-link router-idretransmit-interval seconds no area area-idvirtual-link router-idretransmit-interval seconds

area area-idvirtual-link router-idtransmit-delay seconds no area area-idvirtual-link router-idtransmit-delay seconds

20-24 IPv4 Routing Protocol Configuration

Page 594
Image 594
Enterasys Networks 9034313-07 manual Area virtual-link, Default‐, Information‐, Originate