Alcatel-Lucent 060321-10, Rev. B, Cli Reference Manual

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OSPF Commands ip ospf virtual-link
OmniSwitch CLI Reference Guide March 2011 page 17-17
Defaults
Platforms Supported
OmniSwitch 10K
Usage Guidelines
•
The no form of the command deletes the virtual link.
•
It is possible to define areas in such a way that the backbone is no longer contiguous. In this case the
system administrator can ensure backbone connectivity physically.
•
Virtual links can be configured between any two backbone routers that have an interface to a common
non-backbone area. Virtual links belong to the backbone. The protocol treats two routers joined by a
virtual link as if they were connected by an unnumbered point-to-point network. The routing protocol
traffic that flows along the virtual link uses intra-area routing only.
•
If authentication is enabled, both routers at either end of the virtual link must share the same password.
Simple authentication refers to the use of only clear-text passwords as an authentication method. MD5
authentication refers to the usage of message digests.
•
The dead-interval value should be the same for all routers on the same network. This value should be
some multiple of the value given for the hello interval.
Examples
-> ip ospf virtual-link 0.0.0.1 172.22.2.115
-> ip ospf virtual-link 0.0.0.1 172.22.2.115 auth-key "techpubs"
-> ip ospf virtual-link 0.0.0.1 172.22.2.115 auth-type simple
-> ip ospf virtual-link 0.0.0.1 172.22.2.115 dead-interval 50
-> ip ospf virtual-link 0.0.0.1 172.22.2.115 hello-interval 20
-> ip ospf virtual-link 0.0.0.1 172.22.2.115 retrans-interval 20
-> ip ospf virtual-link 0.0.0.1 172.22.2.115 transit-delay 50
-> no ip ospf virtual-link 0.0.0.1 172.22.2.115
Release History
Release 7.1.1; command was introduced.
parameter default
none | simple | md5 none
key_string null string
dead-interval seconds 40
hello-interval seconds 10
retrans-interval seconds 5
transit-delay seconds 1