************************************************************************ DDN MGT Bulletin 117 DISA DDN Defense Communications System 10 February 1993 Published by: DDN Network Info Center (NIC@NIC.DDN.MIL) (800) 365-3642 DEFENSE DATA NETWORK MANAGEMENT BULLETIN The DDN MANAGEMENT BULLETIN is distributed online by the DDN Network Information Center under DISA contract as a means of communicating official policy, procedures and other information of concern to management personnel at DDN facilities. Back issues may be read through the TACNEWS server ("@n" command at the TAC) or may be obtained by FTP (or Kermit) from the NIC.DDN.MIL host [192.112.36.5] using login="anonymous" and password="guest". The pathname for bulletins is ddn-news/ddn-mgt-bulletin-nn.txt (where "nn" is the bulletin number). ************************************************************************ DDN SCHEDULED SERVICE INTERRUPTIONS DDN Management Bulletin 102, dated 6 October 1992, subject "MILNET PSN Scheduled Service Interruptions," is hereby CANCELLED. This DDN Managnement Bulletin provides updated information regarding scheduled service interruption procedures, effective upon receipt. This DDN Management Bulletin also provides NEW guidance on how to submit requests for DDN MILNET PSN Scheduled Service Interruption requests for approval. In the past few months, DISA/DODM has received numerous requests for scheduled downtime at DDN MILNET PSN facilities without proper coordination and no end user validation. Further, DISA/DODM has received requests from Node Site Coordinators through the CONUS MILNET Monitoring Center (CMMC). The CMMC is not authorized to approve Scheduled Service Interruption requests without prior approval from DONC/DODM. Requests for Scheduled Service Interruptions should not be submitted to the CMMC--except as INFORMATION ONLY. Procedures and guidelines for DDN Scheduled Service Interruptions are provided in DISA Circular 310-70-1, DCS Systems Control, Operational Procedures TCF/PTF/MTC's, August 1992, Chapter 7. This DISA Circular applies to military departments (MilDeps) and other DOD or governmental agencies/activities responsible for operation, maintenance, and management of the DCS (Defense Communications System), which includes DDN MILNET PSNs and its Interswitch Trunks (ISTs). All future requests for DDN Backbone Scheduled Service Interruptions should be submitted as directed by the DISA Circular referenced above. If your DDN MILNET PSN site does not have a copy of this DISA Circular, please check with your local Techincal Control Facility (TCF), Patch and Test Facility (PTF), or Nodal and Access Switch Monitoring and Test Centers (MTCs). They are required to have copies of this DISA Circular, which you may use for guidance on submitting requests for scheduled service interruption. You can also order this DISA Circular through your local Publication Distribution Office (PDO) or Base administration office. This DISA Circular can be obtained by submitting DISA Form 117, Publication or Blank Form Request, to: Defense Information Systems Agency Attn: BIAR 701 S. Courthouse Rd. Arlington, VA 22204-2199 Telephone: 703-692-6972 or DSN 222-6972 All Node Site Coordinators should either have this DISA Circular on hand or ensure that is is available from their local Technical Control Facility. If your organization is unable to comply with DISA Circular 310-70-1, Chapter 7, due to EMERGENCY notification of a scheduled service interruption, please contact DISA/DODM immediately for verbal approval of the scheduled service interruption (providing user concurrence has been obtained)--(DSN) 222-7580 or commercial 703-692-7580, However, please remember this will be permitted only on a case-by-case basis. This procedure IS NOT to be used for ROUTINE scheduled service interruptions. Don't forget that DDN users with direct-connect to the PSNs must also concur with the scheduled service interruption time-frame. (CONUS Only) EMERGENCY scheduled service interruptions can be submitted via E-mail to the following addresses: Action: milnetmgr@ddn-conus.ddn.mil cmcmgr@ddn-conus.ddn.mil aopsmgr@ddn-conus.ddn.mil Information: dca-mmc@cmsc.ddn.mil Pacific and European sites should forward requests for scheduled serivce interruptions to the appropriate DOCC area element. DISA/DODM point of contact is: Mr McDaniel, CONUS Monitoring Center Manager DSN 222-7580 Commercial (703) 692-7580 E-mail address: cmcmgr@ddn-conus.ddn.mil.