Technical Documentation

virtual-link

Syntax

virtual-link neighbor-id router-id transit-area area-id {disable;authentication key <key-id identifier>;dead-interval seconds;hello-interval seconds;ipsec-sa name;retransmit-interval seconds;transit-delay seconds;}

Hierarchy Level

[edit logical-systems logical-system-name protocols (ospf | ospf3) area area-id],[edit logical-systems logical-system-name routing-instances routing-instance-name protocols ospf area area-id],[edit protocols (ospf | ospf3) area area-id],[edit routing-instances routing-instance-name protocols ospf area area-id]

Release Information

Statement introduced before JUNOS Release 7.4.

Statement introduced in JUNOS Release 9.0 for EX Series switches.

Description

For backbone areas only, create a virtual link to use in place of an actual physical link. All area border routers and other routing devices on the backbone must be contiguous. If this is not possible and there is a break in OSPF connectivity, use virtual links to create connectivity to the OSPF backbone. When configuring virtual links, you must configure links on the two routing devices that form the end points of the link, and both these two routing devices must be area border routers. You cannot configure links through stub areas.

Options

neighbor-id router-id—IP address of the routing device at the remote end of the virtual link.

transit-area area-id—Area identifier of the area through which the virtual link transits. Virtual links are not allowed to transit the backbone area.

The remaining statements are explained separately.

Required Privilege Level

routing—To view this statement in the configuration.

routing-control—To add this statement to the configuration.


Published: 2010-04-14