Skip Navigation
  • Text Size: A A A
  • Print
  • Email
  • Facebook
  • Tweet
  • Share


Program Overview

HHSNet is a department wide initiative to optimize current HHS networks and communications services. The project, which began in FY02, has focused on network modernization and billing reconciliation.

HHSNet consolidates various Information Technology (IT) infrastructures within HHS Operating Divisions (OPDIVs) into a unified IT infrastructure. This enables HHS to maintain better control of IT purchases, resources and overall infrastructures. The network supports many applications that are vital for departmental inventory management and centralized financial and human resource management in support of the President’s Management Agenda and the Secretary’s One HHS Vision.

HHSNet is a department wide initiative to design a comprehensive network that encompasses all aspects of the HHS Enterprise Network, including the build-out of the HHSNet Network Operation Center (HHS/NOC), while maintaining a strong security posture. The goals of the network redesign are to support intraoperational division communications to ensure high performance and reliability of strategic systems.

IPV6 Transitions

The HHS Office of the Chief Information Officer (OCIO) is the business sponsor for the Department’s Internet Protocol Version 6 (IPv6) transition project. The OCIO oversees all activities and provides support for the transition of the Department’s HHSNet backbone from IPv4 to IPv6. The IPv6 transition is guided by the Office of Management and Budget (OMB) which established the goal of transitioning all federal government agency network backbones to support IPv6 by June 30, 2008.

HHSNet currently supports the IPv4 protocol which is limited globally to 4,294,967,296 unique IP addresses based on its 32-bit address architecture. As more mobile phones, entertainment systems, and other types of electronic devices are connected to the Internet for everyday purposes, IP addresses limitations will become a real problem in the not-too-distant future. IPv6 is based on a 128-bit address architecture which will ensure sufficient, unique IP addresses for the foreseeable future.

HHS is an early adopter of IPv6, and as a result, will not have the advantage of modeling after a mature implementation. Currently, the Department is leveraging lessons learned from DoD and sharing information with other Executive Branch agencies that are also transitioning per the direction of the Office of Management and Budget (OMB).