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Network Room Definition

Network Room Definition

Network Room Definition

Network room is dedicated physical hosting space in a building where all the network communication devices i.e. routers, switches, firewalls, computers, servers, storage devices, database servers, DSL routers etc are hosted. By definition Network Room is a shared hosting facility to store or operate network equipment. Because of its shared nature, any network device that requires physical isolation and security from other staff are securely hosted there. Telnet , shh (Secure Shell), remote desktop, or VNC applications are used to remotely access the hosted devices remotely. Network Rooms are usually air-conditioned. The temperature and physical security of the room are two important features which makes it unique from any other room in the building. Network room is classified as controlled room; meaning only certain employees in the company get access to the room for security reasons.

What is Network Room Definition & Meaning

By definition network room is a shared room for Network & Security equipment, infrastructure (servers), storage, databases etc.

Location of Network Room

Site location of the Network Room is chosen to ensure both proper environmental and physical controls:

  • For room location generally a place is chosen which is safe from exposure to fire, flood, explosions and other similar hazards.
  • Network Rooms are preferred to be located in areas where noise will not disturb classrooms, offices, etc


All Network Rooms should have solid walls extending from the floor to ceiling. In areas where raised floors or a drop ceiling are in place, walls should extend below the raised floor and above the drop ceiling to prevent an individual from entering the room by climbing under the raised floor or over the wall by accessing the maintenance space. Locked racks or a cage may also be used to provide a secure perimeter layer.

Physical Access

Physical access to the network room must be limited to only those individuals who have legitimate responsibilities justifying such access. Use of card readers and electronic locks to permit access is recommended over traditional keys; if keys are used, they must be marked “Do Not Duplicate.” Procedures must be in place to ensure access is removed when an individual no longer has such need and access lists of authorized individuals must be reviewed at least quarterly by data center owners. Procedures must also be in place to address lost or stolen keys or access cards.

  • Video cameras are recommended to monitor and record individuals entering or working in the
  • When warranted by business needs, a log may be kept, recording the time of entry, time of exit, and purpose of physical access by visitors and/or authorized personnel.
  • Visitors must wear an identification badge.
  • Visitors should be escorted by authorized personnel at all times.

Network Room Design

  • The Network room must be located in an area that can bear the weight of all systems, including foreseeable planned growth.
  • When feasible, door frame size should be sufficient to allow for easy introduction and removal of equipment. For new construction, doors should be 42 inches wide and 9 feet tall. If hinges are exterior to the room, doors should use locking hinge pins.
  • The ceiling of the room should be at least 9 feet high.
  • The Network room should not have exterior windows.
  • The arrangement of equipment should provide for adequate clearance around computing racks; 4 feet at the front and 3 feet at the rear is recommended.
  • For new construction, an anti-static floor surface is recommended. Raised floors with a minimum clearance of 24 inches are recommended for new construction of large network rooms.


  • The network room should have sufficient dedicated circuits for all equipment, plus one or more additional circuits, as needed for flexibility in the event a circuit fails.
  • All systems must be properly grounded.
  • Critical systems should be connected to uninterruptible power supplies (UPS) and/or generator power, depending on the business requirements for network up time.
  • Uninterruptible power supplies (UPS) and/or generator power should be tested at least annually and maintained according to manufacturer specifications.
  • Based on UPS monitoring thresholds, automatic shutdown features should be configured when feasible to gracefully shutdown and protect systems prior to power loss.
  • Large rooms should have a clearly-labeled emergency power-off switch.
  • Procedures should be posted in the room explaining how to respond in the event of a power failure.
  • Network rooms should have emergency lighting to provide for life safety in the event of a power outage.

Temperature Control

  • The network room must have sufficient temperature control to maintain temperatures within the operational limits defined for the hardware located in the room.
  • The network room should have dedicated, redundant air conditioning sufficient to maintain temperatures between 65 and 70 degrees Fahrenheit. Fully enclosed racks with built-in cooling may also be used.
  • Environmental monitoring should be configured to alert administrators in the event of a cooling failure (i.e., a NetBotz monitoring system that sends text messages; a thermostat with only a local alarm is not sufficient). For large rooms, cooling systems and equipment should be installed in a hot aisle / cold aisle configuration to maximize efficiency.
  • Procedures should be posted in the room explaining how to respond in the event of a cooling failure.

Fire / Flood

  • The network room must have some form of fire detection and suppression, adequately
    maintained and routinely tested.
  • Network rooms must be reasonably free of fire hazards such as boxes, papers, etc. Each network room may have an easily visible and accessible clean-agent fire extinguisher. A standard “ABC” fire extinguisher is not recommended for use around electronic equipment.
  • If the network room is located near potential leak hazards (AC condensers, overhead water lines, sprinklers, kitchens, break rooms, restrooms, etc.) sufficient steps should be taken to protect systems, such as racks with solid tops, systems elevated off the floor, etc. Moisture sensors should be used in areas where leaks are most likely or would be most problematic.


  • Cabling must be maintained in an orderly fashion to reduce the possibility of an accidental outage.
  • The manager of the network room must maintain an accurate inventory of all systems in the network room.
  • Network rooms should not have conspicuous signage that could attract unnecessary attention or attack.

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