A company has implemented 802.1X authentication on AOS-CX access switches, where two ClearPass servers are used to implement AAA. Each switch has the two servers defined. A network engineer notices the following command configured on the AOS-CX switches: radius-server tracking user-name monitor password plaintext aruba123
What is the purpose of this configuration?
The purpose of the configured command 'radius-server tracking user-name monitor password plaintext aruba123' on AOS-CX switches is to speed up the AAA authentication process. RADIUS server tracking helps ensure that the switch is aware of the availability of the RADIUS servers. If a server becomes unavailable, the switch can quickly switch to an available server, minimizing delays and speeding up the authentication process.
Radius service tracking Radius service tracking locates the availability of the RADIUS service configured on the switch. It helps to minimize the waiting period for new clients in the unauth-vid (Guest Vlan) when authentication fails because of service is not available, as well as previously authenticated clients in unauth-vid (Guest Vlan) when re-authentication fails because service is not available during the re-authentication period. Note that this feature is disabled by default. radius-server tracking Syntax [no] radius-server tracking <enable|disable>
True, https://techhub.hpe.com/eginfolib/networking/docs/switches/WB/16-02/5200-1650_WB_ASG/content/ch04s04.html
C looks correct to me https://techhub.hpe.com/eginfolib/networking/docs/switches/WB/16-02/5200-1650_WB_ASG/content/ch04s04.html
I also think C is correct
C is correct (although the link provided is referring to AOS-S, not CX)
the correct Answer is C
C Form Radius config guide
C, page 694
Page 706 Study Guide: Effect of RADIUS tracking on pre- auth role: If RADIUS tracking is enabled and no RADIUS server is available for authentication, the port will be changed from a pre- auth role VLAN to a critical VLAN. The time taken to move from pre- auth role VLAN to critical VLAN depends on the time it takes for RADIUS tracker to inform the subsystem. [Aruba Networks]
I think the answer is A . radius server tracking is use to track the status of the radius server