Modified: for 12.1.4



Use this window to view the status of the TACACS Plus Servers.

Terminal Access Controller Access-Control System (TACACS) refers to a family of related protocols handling remote authentication and related services for network access control through a centralized server. TACACS Plus (TACACS+) has largely replaced its predecessors and is a separate protocol that handles authentication, authorization, and accounting (AAA) services. 

The SBC Core supports the TACACS+ protocol to allow the authentication of username/password information when logging into the SBC CLI or to access the Confd database using NETCONF. The SBC uses TCP/IP to communicate with the TACACS+ server.  

  • TACACS+ is similar to RADIUS in a number of ways.  Both are relatively insecure by today's cryptography standards since the TLS transport is not supported.
  • TACACS+ uses TCP for reliable communication, whereas RADIUS uses UDP.
  • TACACS+ separates out the Authorization functionality, while RADIUS combines both Authentication and Authorization functionality.

(The TACACS+ protocol is specified in RFC 8907 "The Terminal Access Controller Access-Control System Plus (TACACS+) Protocol")


On the SBC main screen, go to All > OAM > Tacacs Plus Authentication > Tacacs Plus Status. The Tacacs Plus Status List window is displayed.


Field List

FieldDescription
Server NameThe TACACS Plus Server name.
StatusEither available or unavailable.
Available At

The timestamp when the server is automatically put back into the 'Available' state.


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