The elements managed by the Avaya Breeze® platform System Manager will have default certificates issued by the Avaya Breeze® platform System Manager CA. The elements managed by the Avaya Aura® System Manager will have certificates issued by the Avaya Aura® System Manager CA. For the various elements to trust each other, the CA from each System Manager must be added as a trusted CA certificate for elements managed by the other. To establish this trust, follow the procedures in this chapter . If you are using a third-party CA, install the certificate from that CA across all systems.