Protocol defined by IEEE 802.1ak that allows bridges, switches, or other devices to register/deregister attribute values such as VLAN identification.
Gigabit Ethernet (GbE)
Transmission of Ethernet frames in up to 1 Gigabit per second speed. Called 1000BASE-T when referred to copper wiring, 1000BASE-X in reference to fiber.
Government Configuration Baseline (GCB)
A set of rules to create security configuration baselines for Information Technology products widely deployed across the government agencies such as TWGCB and USGCB.
Generic Framing Procedure (GFP)
Multiplexing technique defined by G.7041. Maps data over SDH/SONET or PDH.
Gateway GPRS Support Node (GGSN)
Key node in a GRPS (General Radio Packet Service). It exists between mobile networks such as 2G, 3G, and CDMA and an Ethernet packet-switched network such as the Internet.
Voltage reference point for measurement, usually a direct connection to the earth. Can also refer to a large conductor or any other device that acts as a "current sink."
General Packet Radio Service (GPRS)
Service defined by ETSI, European Telecommunications Standards Institute. Defines a packet-based IP network and interfacing with the Internet for mobile communications. See GGSN.
Global System for Mobile Communications (GSM)
A second generation (2G) standard for mobile communications, defined by ETSI. Uses TDMA technology and operates in the 900 MHz radio band. A digital technology, it is an improvement over the original analog (1G) mobile cell phone network.
GARP VLAN Registration Protocol (GVRP)
Replaced by MVRP (Multiple VLAN Registration Protocol). Specific use of GARP to set up VLAN information automatically between switches and other devices. Replaced by the more specialized MVRP because it did not scale well to large VLANs.
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