Cisco BPX 8650, Installation And Configuration Manual

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Glossary
GL-10
Cisco BPX 8600 Series Installation and Configuration
Release 9.3.30, Part Number 78-12907-01 Rev. E0, May 2005
ECN
explicit congestion notification.
A frame relay feature to signal the onset of network congestion to external devices. Sets FECN and
BECN bits in frame relay header to indicate forward and backward congestion.
explicit congestion
notification
See ECN.
F
Fast EIA
Same as interleaved EIA. Seven data circuit control leads in each direction are transmitted in
alternating bytes with data. For fast control lead response to data being turned on and off but with a
sacrifice in packet line bandwidth
FBTC
frame based traffic control.
An AAL5 frame based traffic control that provides the possibility of discarding the whole frame, not
just one compliant cell. This avoids wasting bandwidth by continuing to send the cells in a frame once
a cell has been found to be noncompliant.
feeder
A feeder is a small switch that acts as an extension shelf, typically with lower-bandwidth interfaces,
for a larger switch. The larger switch is referred to as the Routing node with the feeder(s) it supports.
Collectively, the feeder(s) and routing node form a type of supernode.
FGCRA
frame based generic cell rate algorithm.
An enhancement option to GCRA that allows an entire frame to be discarded if any of its cells are
noncompliant, rather than transmitting a partial frame over the network.
fixed round trip time
See FRTT.
flat network
A nonstructured network, a network in which there are no junction nodes or domains.
foreign network
An adjacent network that is owned and managed by a different party than the one that owns the local
network.
ForeSight
A proprietary optional feature that uses feedback techniques to dynamically allocate extra bandwidth
to frame relay and ATM connections when the network bandwidth is available and not used by other
connections.
See also VS/VD.
frame based generic
cell rate algorithm
See FGCRA.
frame based traffic
control
See FBTC.
frame forwarding
A software feature allowing point-to-point frame relay type connection for various data applications
that do not conform to the Frame Relay Interface Specification.
frame relay
connection class
A tag for a frame relay circuit which indicates the class of service to be provided for this connection.
Parameters associated with a connection class include minimum information rate guaranteed, peak
information rate expected, maximum network delay, and so on.
frame relay interface
See FRI.