From Voice Video Policy Security Technical Implementation Guide
Part of SRG-POL-200091
Associated with: CCI-002955
Power systems rely on multiple tiers of defense for providing continuous power to sites and systems. Commercial power may be supplemented by UPS, generators, or other means. Power must be distributed to the network infrastructure, endpoints, servers, and other network devices to ensure constant delivery of services. Voice Video systems must be designed and implemented to ensure fire and emergency services (FES) are always available.
Review the Voice Video system security plan (SSP) for design criteria for the physical environment of the Voice Video system. Ensure the UPS provides sufficient backup power for the LAN infrastructure, WAN boundary, Voice Video infrastructure, and Voice Video endpoints to support DISN Voice Precedence level Routine users and below. Sufficient backup power for emergency life-safety and security calls would be 15 minutes of UPS. Verify the Voice Video system provides 99.9 percent availability. If the organization does not provide UPS with 15 minutes of backup power for the LAN infrastructure, WAN boundary, Voice Video infrastructure, and Voice Video endpoints to support DISN Voice Precedence level Routine users and below, this is a finding. If the Voice Video system availability for Routine users and below is less than 99.9 percent, this is a finding.
Develop and document in the Voice Video SSP the design criteria for the physical environment of the Voice Video system. The organization must provide UPS with a minimum of 15 minutes of backup power for the LAN infrastructure, WAN boundary, Voice Video infrastructure, and Voice Video endpoints to support DISN Voice Precedence level Routine users and below. The organization must also ensure the Voice Video system provides 99.9 percent availability. The UPS system must support all Routine users and below in all parts of the network design as follows: - All Voice Video system components, including portions of the LAN directly supporting these users, are provided with a minimum of 15 minutes of UPS. - All UPS units will be sized and maintained to prevent power loss or drop to the supported equipment when primary power is removed.
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