A network architect is working with a customer to implement a new network design. The network architect has learned that the company has a legacy application hosted on a number of legacy servers…

A network architect is working with a customer to implement a new network design. The network architect has learned that the company has a legacy application hosted on a number of legacy servers. The legacy application must remain intact during and after the new network implementation, as the company plans to continue using it indefinitely. The customer has the standard IT roles. With which stakeholder should the network architect discuss the technical details of the legacy system and any challenges or specifies about maintaining interoperability?