NASA Science Network (NSN)


           _A_d_d_r_e_s_s:
           Network Information Center
           NASA Science Network
           MS 233-18
           NASA Ames Research Center
           Moffett Field, CA  94035

           _E-_m_a_i_l: [email protected]

           _P_h_o_n_e: (415) 694-5859 or (FTS) 464-5859


           _D_e_s_c_r_i_p_t_i_o_n

           The NASA Science Network (NSN) is an IP network  which  sup-
           ports scientists and flight projects funded by NASA's Office
           of Space Science and Applications  (OSSA).  The  network  is
           used  to  provide  remote access to such resources as scien-
           tific databases and supercomputing centers.  The  NSN  main-
           tains  hubs at several NASA centers which are interconnected
           in a partial mesh topology. These backbone sites use terres-
           trial  circuits  ranging in speed from 168 to 672 Kbps. From
           these hubs radiate numerous tail circuits; the  majority  of
           these tails are 56 Kbps, with a few at 9.6 Kbps as well.

           The NSN was designed to provide NASA's  scientific  communi-
           ties with a more general networking approach that would pro-
           vide  full  networking  services  in  a   vendor-independent
           environment. These services include file transfer and remote
           logon as well as email.

           NSN is a NASA-wide  network  managed  by  the  NASA  Science
           Internet  Project Office (NSIPO) at Ames Research Center. It
           is used for NASA-funded space science research programs  and
           flight projects.

           Users  include  NASA  sites,  and   government   facilities,
           research,   and   academic   sites   conducting  NASA-funded
           research.
           _________________________
           The information in this section is provided  in  accor-
           dance  with the copyright notice appearing at the front
           of this guide.




           August 6, 1989              NNSC       Section 5.15,  Page 1








           _N_e_t_w_o_r_k _a_c_c_e_s_s

           Network access is limited to users who  are  accessing  NASA
           resources.

           _W_h_o _C_a_n _U_s_e _t_h_e _N_e_t_w_o_r_k

           Access is limited to facilities which are working  on  NASA-
           funded  research.  It may not be used for private or commer-
           cial profit.

           _M_i_s_c_e_l_l_a_n_e_o_u_s _I_n_f_o_r_m_a_t_i_o_n

           In addition to NSN, the NASA Science Internet also  operates
           SPAN, the Space Physics Analysis Network which utilizes DEC-
           net protocols. NSI maintains applications gateways that pro-
           vide connectivity between SPAN and NSN.


































           August 6, 1989              NNSC       Section 5.15,  Page 2