GGlossary
B-30 Centillion 1200N ATM Switch User Manual
NTP 297-8103-903
FPGA
Field Programmable Gate Array: A specialized microprocessor manufactured
without physical connections between its logic gates, but with potential
connections that can be firmed up in the field. (paraphrased from Newton)
FRS
Frame-Relay Service: A connection oriented service that is capable of carrying up
to 4096 bytes per frame.
FRTT
Fixed Round-Trip Time: This is the sum of the fixed a nd pr opag ati on delays from
the source to the furthest destination and back.
G
G.703
ITU-T Recommendation G.703, "Physical/Electrical Characteristics of
Hierarchical Digital Interfaces".
G.704
ITU-T Recommendation G.704, "Synchronous Frame Structures Used at Primary
and Secondary Hierarchy Levels".
G.804
ITU-T Recommendation G.804, "ATM Cell Mapping into P les io chr onou s Di git al
Hierarchy (PDH)".
GCAC
Generic Connection Admission Control: This is a process to determine if a l ink has
potentially enough resources to support a connection.
GCRA
Generic Cell Rate Algorithm: The GCRA is used to define conformance with
respect to the traffic contract of the connection. For each cell arrival the GCRA
determines whether the cell conforms to the traffic contr act. The UPC function may
implement the GCRA, or one or more equivalent algorithms to enforce
conformance. The GCRA is defined with two parameters: the Increment (I) and the
Limit (L).