Attention A T users. To access the menus on this page please perform the following steps. 1. Please switch auto forms mode to off. 2. Hit enter to expand a main menu option (Health, Benefits, etc). 3. To enter and activate the submenu links, hit the down arrow. You will now be able to tab or arrow up or down through the submenu options to access/activate the submenu links.

VA Technical Reference Model v 21.9

ISO 9314-1:1989 Fiber Distributed Data Interface (FDDI)
ISO 9314-1:1989 Fiber Distributed Data Interface (FDDI) Standard or Specification

General InformationGeneral Information help

Technologies must be operated and maintained in accordance with Federal and Department security and privacy policies and guidelines. More information on the proper use of the TRM can be found on the TRM Proper Use Tab/Section.

Website: Go to site
Description: International Organization for Standardization / International Electrotechnical Commission (ISO/IEC) 9314: Fiber Distributed Data Interface (FDDI) provides a 100 megabits per second (Mbit/s) optical standard for data transmission in a local area network that can extend in range up to 200 kilometers (124 miles). Although FDDI logical topology is a ring-based token network, it does not use the Institute of Electrical and Electronics Engineers (IEEE) 802.5 token ring protocol as its basis; instead, its protocol is derived from the IEEE 802.4 token bus timed token protocol. In addition to covering large geographical areas, FDDI local area networks can support thousands of users. As a standard underlying medium, it uses optical fiber, but can use copper cable, in which case, it may be referred to as Copper Distributed Data Interface (CDDI). FDDI offers both a Dual-Attached Station (DAS), counter-rotating token ring topology and a Single-Attached Station (SAS), token bus passing ring topology.
Technology/Standard Usage Requirements: Users must ensure their use of this technology/standard is consistent with VA policies and standards, including, but not limited to, VA Handbooks 6102 and 6500; VA Directives 6004, 6513, and 6517; and National Institute of Standards and Technology (NIST) standards, including Federal Information Processing Standards (FIPS). Users must ensure sensitive data is properly protected in compliance with all VA regulations. Prior to use of this technology, users should check with their supervisor, Information Security Officer (ISO), Facility Chief Information Officer (CIO), or local Office of Information and Technology (OI&T) representative to ensure that all actions are consistent with current VA policies and procedures prior to implementation.
Section 508 Information:
Decision: View Decisions

Decision Source: TRM Mgmt Group
Decision Process: One-VA TRM v20.4
Decision Date: 04/07/2020
Introduced By: TRMSP
Standards Body: ISO
- The information contained on this page is accurate as of the Decision Date (04/07/2020).