






                                        USAN


            _A_d_d_r_e_s_s:
            National Center for Atmospheric Research
            USAN Network/Scientific Computing Division
            1850 Table Mesa Drive
            P.O. Box 3000
            Boulder, CO 80307

            _E-_m_a_i_l: morris@ncar.ucar.edu

            _P_h_o_n_e: (303) 497-1282 [Don Morris]


            _D_e_s_c_r_i_p_t_i_o_n

            USAN (University Satellite Network) is a discipline oriented
            network serving organizations that do research in the atmos-
            pheric and oceanographic sciences. Current members  are  the
            Universities  of  Miami, Oregon State, Penn State, Maryland,
            Wisconsin, and the  Institute  of  Naval  Oceanography,  the
            Naval Research Lab, and Woods Hole Oceanographic Institute.

            The primary use of the network is for  access  to  supercom-
            puter facilities at NCAR. Secondary use is for access to the
            Internet via the NSFnet node and other Internet gateways  at
            NCAR.

            The network is an IP satellite broadcast network with a star
            configuration  with  the center at NCAR. Incoming traffic is
            broadcast at 56Kbits from each node on its own unique  chan-
            nel.  Outbound  traffic is broadcast at 224Kbits on a single
            channel.

            Membership in USAN is not restricted, however  members  must
            share in the operating costs for the network.

            _N_e_t_w_o_r_k _a_c_c_e_s_s

            Any IP host of any USAN member may access the network.

            _________________________
            The information in this section is provided  in  accor-
            dance  with the copyright notice appearing at the front
            of this guide.




            June 27, 1989               NNSC       Section 5.12,  Page 1








            _W_h_o _C_a_n _U_s_e _t_h_e _N_e_t_w_o_r_k

            Any of the members  can  exchange  traffic  with  any  other
            member  for  any  purpose.   Any  member  may use any of the
            long-haul networks USAN has connections to, subject only  to
            the restrictions of the owner of the long-haul network.

            Members are free, at this time, to allow  transient  traffic
            over USAN through their USAN gateways.

            _M_i_s_c_e_l_l_a_n_e_o_u_s _I_n_f_o_r_m_a_t_i_o_n

            USAN is one gateway hop from the NSFnet, Las Alamos National
            Labs,   Westnet  east,  NASA/Ames,  Department  of  Commerce
            Boulder Labs, and a consortium of universities in Mexico.




































            June 27, 1989               NNSC       Section 5.12,  Page 2


