Nortel 15000 Terminology page 58

gateway
1 See
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gateway identifier (GID)
An integer that uniquely identifies an X.25 gateway or an X.75 gateway in a
network.
GCRA
See generic cell rate algorithm (GCRA) (page
general packet radio service
A packet-linked technology that enables high-speed, 115-kbit/s, wireless
Internet, and other data communications.
general virtual circuit interface (GvcIf)
GvcIf is a networking feature providing circuit establishment between LAN/
WAN services.
generic cell rate algorithm (GCRA)
An algorithm used in a Nortel Multiservice Switch ATM network to monitor and
police network traffic. In Multiservice Switch traffic management, GCRA is
used by usage parameter control (UPC) to enforce conformance at the source
ATM terminal.
generic flow control (GFC)
A four-bit field in the ATM cell header at a user-to-network interface intended
for traffic flow control between the user and network equipment.
generic queue manager (GQM)
A traffic management device (ASIC) which resides on GQM function
processor (FP) cards. The GQM descends from other traffic management
devices such as the AQM and QRD, and is capable of OC-48. It differs
considerable from the other traffic management devices in that it will schedule
up to a single OC-48 channel, its scheduling algorithms are frame or cell
Copyright © 2006, Nortel
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List of terms
accounting gateway (page
DPN gateway (page 43).
external gateway (EG) (page
FR-ATM gateway (page
gateway identifier (GID) (page
internal gateway (page
X.25 gateway (page 149).
X.75 gateway (page 149).
Nortel Multiservice Switch 7400/15000/20000
Terminology
NN10600-005 7.2S1 Standard
PCR7.2 and up March 2006
6).
51).
56).
58).
66).
58).
Nortel Confidential