The following is the sequential workflow involved in the session
                establishment using PKI:
        
        - 
                 Generate the involved X509v3 certificates: CA
                    certificates, OCSP Signature CA certificate, Peer certificate (for example:
                    Syslog server or SSH client), ExtremeXOS device certificate.
            
 - 
                Download the CA certificates and OCSP Signature CA
                    certificates to the ExtremeXOS device.
            
 - 
                Download the ExtremeXOS device certificate and key
                    to ExtremeXOS device (required for establishing TLS session with Syslog
                    server).
            
 - 
                Configure the peer (Syslog server or SSH client)
                    as required to use its own X509v3 certificate in the connection request.
            
 - 
                Initiate the connection request from peer (Syslog
                    server or SSH client) to ExtremeXOS device.
            
 - 
                ExtremeXOS device performs below tasks on the
                    received peer‘s certificate and accepts/rejects the connection request:
                
                    - 
                        Certificate chain verification.
                    
 
                    - 
                        Sanity checks on certificate extensions.
                    
 
                    - 
                        OCSP.