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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
trace destination interface
The interface on which a path or connection trace terminates when it
completes normally.
trace destination node
The node that terminates the path or connection trace for a given connection
and has an outgoing trace destination interface.
trace source interface
The interface at the trace source node that is designated as the starting point
for the path or connection trace of a given connection.
trace source node
The node that initiates the path or connection trace for a given connection.
trace transit list (TTL) information element
An identifier added to the signaling messages to collect trace information.
traffic contract
The agreement that specifies the required transfer characteristics for an ATM
connection.
traffic descriptor parameter (TDP)
There are five parameters that are used to define a traffic descriptor type
(TDT). Taken together with the QOS, these parameters specify the traffic
characteristics of an ATM connection.
The five values used in the traffic descriptor parameters are peak cell rate
(PCR), sustainable cell rate (SCR), maximum burst size (MBS), cell delay
variation tolerance (CDVT), and requested shaping rate (RSR).
traffic descriptor type (TDT)
Traffic descriptor types define which traffic descriptor parameters are applied
to a connection. Types are defined in the ATM Forum 3.0/3.1 and 4.0
standards. Nortel Multiservice Switch system also incorporates proprietary
parameters that are used in traffic shaping, CAC, and UPC.
traffic management (TM)
A set of mechanisms in hardware and software that enhance the availability
of bandwidth to connections that absolutely require it and prevent the
overloading of networks to prevent data losses.
traffic shaping
A method used to smooth out traffic bursts by regulating the emission interval
of cells or frames in the transmit direction. This is useful for ensuring
conformance of transmitted traffic to subscribed traffic parameters.