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authentication (LAG)


Hierarchy Level


Configure the authentication criteria of the BFD session for aggregated Ethernet interfaces.


algorithm algorithm-name

Specify the algorithm to be used to authenticate the BFD session. You can use one of the following algorithms for authentication:

  • keyed-md5

  • keyed-sha-1

  • meticulous-keyed-md5

  • meticulous-keyed-sha-1

  • simple-password

key-chain key-chain-name

Specify the name that is associated with the security key for the BFD session. The name you specify must match one of the keychains configured in the authentication-key-chains key-chain statement at the [edit security] hierarchy level.


(Optional) Configure loose authentication checking on the BFD session. Use only for transitional periods when authentication might not be configured at both ends of the BFD session.

Required Privilege Level

interface—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 13.3.