NASA science network
NASA Science Network is a transmission control protocol/Internet Protocol (TCP/IP) used within the NASA Science Internet (NSI)[1]
Origin[edit]
The NASA Science Internet (NSI) was established to provide NASA-funded (specifically Office of Space Science and Applications) scientists and science flight projects with a network infrastructure. The NSI has two complementary parts: a TCP/IP component called the NASA Science Network (NSN) and a DECnet component called the Space Physics Analysis Network (SPAN). The NASA Science Network is managed from the NASA/Ames Research Center in Mountain View, California. Any person receiving NASA science funding is entitled to network connectivity. In some cases this connectivity is implemented using NASA provided circuits and gateways. In other cases the connectivity is provided through existing networks, such as a regional network.[1]
Applications[edit]
The NSN Network Operations Center (NOC) is responsible for maintaining a highly reliable network for the users. All operational support is centrally managed from the Ames Research Center. The primary service provided by the NOC is problem isolation and correction. If the trouble is due to a gateway problem, immediate corrective action is taken by the staff. If the trouble is caused by a circuit problem or is tracked to another network, the circuit provider or other network provider is informed and the trouble is tracked until resolution. Trouble tickets are issued for all reported problems. In addition, the NOC monitors network performance by tracking traffic (number of bits and packets) and errors. All data are saved in 15-minute intervals with 1-minute resolution for peaks. This information is used to predict future problems and to prevent their occurrence. It is also used to analyze bandwidth utilization and to plan future requirements. The trouble line is staffed from 8:30 a.m. to 5:30 p.m., Pacific time, with off-hour support available via network engineers with pagers. Phone numbers of the trouble line and pagers are given to support personnel (rather than end users), thus preventing the NSN NOC from getting involved in local problems not related to NSN operations.[1]
Reference[edit]
External links[edit]
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