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section5-15.txt
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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: nsnnic@nsipo.nasa.gov
_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