Area Virtual-Link - Enterasys Matrix DFE-Gold Series Configuration Manual

area virtual-link

Defaults
If default‐information‐originate is not specified, no default type will be generated.
Mode
Router command, Router configuration: Matrix>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.
The "no" form of this command changes the NSSA back to a plain area.
Example
This example shows how to configure area 10 as an NSSA area:
Matrix>Router(config)#router ospf 1
Matrix>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.
Syntax
area area-id virtual-link ip-address
The options for using this syntax are:
area area-id virtual-link ip-address authentication-key key
area area-id virtual-link ip-address dead-interval seconds
area area-id virtual-link ip-address hello-interval seconds
area area-id virtual-link ip-address retransmit-interval seconds
area area-id virtual-link ip-address transmit-delay seconds
no area area-id virtual-link ip-address authentication-key key
no area area-id virtual-link ip-address dead-interval seconds
no area area-id virtual-link ip-address hello-interval seconds
no area area-id virtual-link ip-address retransmit-interval seconds
no area area-id virtual-link ip-address transmit-delay seconds
Parameters
area‐id
ip‐address
Specifies the transit area for the virtual link. Valid values are decimal
values or IP addresses. A transit area is an area through which a virtual
link is established.
Specifies the IP address of the ABR. A virtual link is established from
the ABR, where virtual link configuration is taking place.
Enterasys Matrix DFE-Gold Series Configuration Guide 21-35
Configuring OSPF