Integrated multi-level or cross-domain network security management appliance, platform and system, and remote management method and system therefor

A cross-domain network traffic management system comprising:

• a plurality of hardware data path layers, each one of which corresponding with a designated network security domain and comprising:
• an external hardware network domain port to interface with an external network corresponding with a given network security domain, and exchange domain-specific data therethrough;
• a cross-domain hardware port to interface with distinct hardware data path layers corresponding with distinct network security domains and exchange cross-domain data therethrough;
• one or more hardware-integrated processing engines;
• and
• a hardware-integrated interconnection matrix configured to define, in hardware, designated data communication paths to interconnect said processing engines;
• wherein said hardware-integrated processing engines are operable to:
• process and validate ingress given domain data received from said given network security domain via said external hardware network domain port for cross-domain egress via said cross-domain hardware port;
• and
• process cross-domain ingress data received via said cross-domain hardware port for dispatch to said given network security domain via said external hardware network domain port;
• wherein cross-domain egress and ingress data is internally encrypted and decrypted, respectively, in accordance with a respectively designated destination-domain encryption process;
• and
• wherein said hardware-integrated processing engines comprise, for at least one of said hardware data path layers, a domain-specific protocol adapter operable to interface with said external hardware network domain port thereof, a cross-domain data validation engine operable to validate said ingress given domain data once processed by said protocol adapter, and a cross-domain access portal operable to interface with said cross-domain hardware port thereof.