InterGovernmental Network (IGN) Services

The IGN is the common, standard Internet protocol-based data network used by DIS customers to connect to state agencies, counties, and cities with known end points, managed gateways, and applications. The IGN is an example of the State of Washington's enterprise architecture principle of commonality.

SGN

The State Government Network (SGN) is the common, standard Internet Protocol-based network to be used by state agencies to connect separate locations within and among those agencies.

Ethernet

A local-area network (LAN) architecture. Ethernet uses a bus or star topology and supports data transfer rates up to 1Gbps. The Ethernet specification served as the basis for the IEEE 802.3 standard, which specifies the physical and lower software layers. Ethernet uses the CSMA/CD access method to handle simultaneous demands. It is one of the most widely implemented LAN standards.

Frame Relay

Frame relay is a data link network protocol designed to transfer data on Wide Area Networks (WANs). Frame relay works over fiber optic or ISDN lines. The protocol offers low latency and to reduce overhead, does not perform any error correction, which is instead handled by other components of the network. Frame relay has traditionally provided a cost-effective way for telecommunications to transmit data over long distances.

DSL

DSL technologies use sophisticated modulation schemes to pack data onto copper wires. They are sometimes referred to as last-mile technologies because they are used only for connections from a telephone switching station to an office, not between switching stations.