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Assessment Title
Rule Text
The LAN hardware supporting VVoIP services must provide physically diverse pathways for redundant links supporting command and control (C2) assured services and Fire and Emergency Services (FES) communications.
Description
Discussion Text
Voice services in support of high-priority military command and control precedence must meet minimum requirements for reliability and survivability of the supporting infrastructure. Design requirements for networks supporting DOD VVoIP implementations are in the Unified Capabilities Requirements (UCR), specifying assured services supporting DOD IP-based voice services.
Network survivability refers to the capability of the network to maintain service continuity in the presence of faults within the network. This can be accomplished by recovering quickly from network failures and maintaining the required QoS for existing services. Policy sets the minimum requirements for the availability and reliability of VVoIP systems: Special-C2 users is 99.999 percent, C2 users is 99.997 percent, and C2Routine only users (C2R) and non-C2 users are 99.9 percent.
The physical paths that uplinks take should be physically diverse and optimally terminate in physically diverse locations. The best practices should support all VVoIP users but are required for Special-C2 and C2 users.
Network survivability refers to the capability of the network to maintain service continuity in the presence of faults within the network. This can be accomplished by recovering quickly from network failures and maintaining the required QoS for existing services. Policy sets the minimum requirements for the availability and reliability of VVoIP systems: Special-C2 users is 99.999 percent, C2 users is 99.997 percent, and C2Routine only users (C2R) and non-C2 users are 99.9 percent.
The physical paths that uplinks take should be physically diverse and optimally terminate in physically diverse locations. The best practices should support all VVoIP users but are required for Special-C2 and C2 users.
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