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List of terms
Nortel Multiservice Switch 7400/15000/20000
Terminology
NN10600-005 7.2S1 Standard
PCR7.2 and up March 2006
Copyright © 2006, Nortel Nortel Confidential
in-band synchronization
The process through which the accounting system takes a simultaneous
snapshot of the accounting data at each end of the virtual circuit. This
snapshot is used to generate an accounting record.
incumbent segment
An active connection segment that is in the process of being replaced by an
alternate connection segment.
independent link
A single physical link used directly by the ATM layer. It is not part of an IMA
group.
independent transmit clock (ITC) mode
An IMA configuration in which the transmit clock on one or more physical links
in the IMA group is derived from different sources. This is contrasted with
common transmit clock (CTC) mode.
independent VCC
A VCC that is not associated with a virtual path terminator.
induced uplink
An induced uplink is an uplink that is created by a logical group node (LGN)
by aggregating uplinks advertised by its corresponding lower level peer group
leader (PGL).
ingress node
1 The first Nortel Multiservice Switch node that decides to which egress
node the data packet is sent.
2 See also egress node (page 47) and tandem node (page 132).
ingress traffic
Ingress traffic refers to the traffic entering a Nortel Multiservice Switch network
through an access point.
initial cell rate (ICR)
In ATM ABR networking, the rate at which the ABR source transmits cells,
both initially and after an idle period.
inside link
Synonymous with horizontal link. See horizontal link (page 62).