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DDN MGT Bulletin 87              DISA DDN Defense Communications System   
2 DECEMBER 91                     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).
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                    Offutt MILNET DDN Node Down-Time
                        
1.  Due to PSN 105 hardware upgrade and the de-installation of PSN 144 at
    Offutt AFB, the Offutt Milnet DDN node will not be operational starting 
    0900 CST until at least 1500 CST on 9 Dec 91.  As on any hardware upgrade, 
    there is a possibility that the action will take longer than expected.  
    This PSN provides 1-800 dial in service for a large geographic area, 
    in order to continue to provide this service, DISA will request ATT to 
    reroute all 1-800 Offutt traffic to nodes 124 and 147 at Wright Patterson 
    AFB.  The rerouting will stay in effect until the TAC at PSN 105 is 
    operational.  Once the TAC is operational, it will take ATT about one 
    hour to change the routing back to Offutt.  We anticipate a maximum time 
    of three days (9 Dec through 11 Dec 91) that this rerouting may be 
    required.  Due to the amount of usage of the Offutt dial ins, Wright 
    Patterson will have considerably more busy signals.  Please bear with us 
    during the upgrade, we will re-establish normal service as quickly as 
    possible.

2.  States being affected are:
    Normally served by OFFUTT
        Texas
	Kansas
	Colorado
	Missouri 
        Wyoming
	Iowa
        South Dakota
	North Dakota
	Minnesota
	Wisconsin
	Nebraska 

    Served by Wright Patterson
	Illinois
	Michigan
	Indiana
	Kentucky
	West Virginia
	Virginia
        Maryland
        Pennsylvania
        New York

3.  Questions/comments concerning this subject can be addressed to:
    Maj Ted A. Tatchio, MILNET Mgr, HQ DISA/DODM, DSN 222-7580,
						  COML 703-692-7580
    e-mail: milnetmgr@ddn-conus.ddn.mil (address 26.1.0.76).

NOTE: This does not affect any local TAC access service except at Offutt AFB.