You are troubleshooting a TLS link down message between Avaya Aura Session Manager (SM) and Avaya Session Border Controller for Enterprise (SBCE).
Tracing on SM and SBCE reveals a Fatal Error Unknown CA message being sent by SBCE when it receives the Server Identity certificate from SM.
To solve this problem, which two actions need to be completed? (Choose two.)
To resolve the Fatal Error Unknown CA message, it is necessary to ensure that the Certificate Authority (CA) certificate that signed the identity certificate on the communicating entity (in this case, the SM) is recognized by the SBCE. This involves installing the CA certificate that signed the SM identity certificate into the SBCE, and then adding this CA certificate into the TLS profile Peer Verification List on the SBCE to ensure appropriate peer verification during the TLS handshake.
I think it is CD. Root CA that signed SM identity certificate must be added to SBCE and then TLS profile should be configured on SBCE.
C and D
The SBCE does not recognize the CA authority of the SM signed certificate. This means that the SBCE has to become aware of that identity certificate. Correct is C and D
I believe it should be A and C check this link https://support.avaya.com/ext/index?page=content&id=SOLN246515