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Area Commands

virtual-link

Configures a virtual link.

Syntaxarea <A.B.C.D|area-id> virtual-link <A.B.C.D> [authentication [<message-digest|null>]|message-digest-key <key-id> md5 <KEY>|authentication-key <KEY>|hello-interval (1-65535)|retransmit-interval (1-65535)|transmit-delay (1-65535)|dead-interval (1-65535)]
Command modeRouter OSPF
Parameters

  • A.B.C.D – OSPF area ID in IP address format.

  • area-id – OSPF area ID as a decimal value. Range: 0 – 4294967295.

  • key-id – Message digest key ID. Range: 1 – 255.

  • KEY – The OSPF password (key).

  • hinterval – Hello interval in seconds. Range: 1 – 65535.

  • dinterval – Dead interval in seconds. Range: 1 – 65535.

  • rtinterval – Retransmit interval in seconds. Range: 1 – 65535.

  • transdelay – Transmit delay in seconds. Range: 1 – 65535.

Usage Use no area <A.B.C.D|area-id> virtual-link <A.B.C.D> [authentication [<message-digest|null>]|message-digest-key <key-id> md5 <KEY>|authentication-key <AUTH_KEY>|hello-interval (1-65535)|retransmit-interval (1-65535)|transmit-delay (1-65535)|dead-interval (1-65535)] to remove the configuration.
Supported Releases1.1.0 or later
Click command None
Example 
sonic(config-router)# area 1 virtual-link 1.1.1.1 authentication
sonic(config-router)# area 1 virtual-link 1.1.1.1 authentication null
sonic(config-router)# area 1 virtual-link 1.1.1.1 authentication message-digest
sonic(config-router)# area 1 virtual-link 1.1.1.1 authentication-key key1
sonic(config-router)# area 1 virtual-link 1.1.1.1 message-digest-key 1 md5 key2
sonic(config-router)# area 1 virtual-link 1.1.1.1 dead-interval 2
sonic(config-router)# area 1 virtual-link 1.1.1.1 hello-interval 1
sonic(config-router)# area 1 virtual-link 1.1.1.1 retransmit-interval 3
sonic(config-router)# area 1 virtual-link 1.1.1.1 transmit-delay 1
sonic(config-router)#
sonic(config-router)# area 10.1.1.1/24 virtual-link 1.1.1.1 authentication
sonic(config-router)# area 10.1.1.1/24 virtual-link 1.1.1.1 authentication null
sonic(config-router)# area 10.1.1.1/24 virtual-link 1.1.1.1 authentication message-digest
sonic(config-router)# area 10.1.1.1/24 virtual-link 1.1.1.1 authentication-key key1
sonic(config-router)# area 10.1.1.1/24 virtual-link 1.1.1.1 message-digest-key 1 md5 key2
sonic(config-router)# area 10.1.1.1/24 virtual-link 1.1.1.1 dead-interval 2
sonic(config-router)# area 10.1.1.1/24 virtual-link 1.1.1.1 hello-interval 1
sonic(config-router)# area 10.1.1.1/24 virtual-link 1.1.1.1 retransmit-interval 3
sonic(config-router)# area 10.1.1.1/24 virtual-link 1.1.1.1 transmit-delay 1

Last updated: February 28, 2025