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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
soft permanent virtual path (SPVP, soft PVP)
Soft PVPs support the same functionality as a permanent virtual path but
eliminate the need to manually provision each node along the connection. The
endpoint is provisioned but the connection route is selected automatically.
software control system (SCS)
The software system that manages the software installed in a shelf. It controls
the downloading of software, cleans up unused software on the Nortel
Multiservice Switch node disk, and determines which software modules need
to be loaded on each processor card.
software distribution site (SDS)
A workstation designated to manage, store, and provide access to Nortel
Multiservice Switch software.
SONET
See synchronous optical network (SONET) standard (page 131).
SONET payload envelope (SPE)
The user data of a SONET signal.
source/destination
The name of the endpoints of an ABR loop when considered in a given single
direction. ABR requires that a network is divided into ABR loops with a source
and destination at either end of the loop. The direction from source to
destination is the direction of traffic flow. For traffic in the reverse direction, the
source and destination roles are reversed. See
resource management (RM)
cell (page 113).
source node
The node that originates the connection.
source route
In ATM PNNI networking, a route that has been determined by the source
node to the destination node. As a result of this calculation, a source route
includes a complete designated transit list (DTL), which is based on the
distributed topology information that is available at the time the calculation is
made.
source routing
A routing approach in which the source node determines the route to the
requested destination before setting up the call.
SP
See security policy (SP) (page 118).