
- 97 -
List of terms
Passport 4400
A
Passport Carrier Release (PCR)
The Passport Carrier Release (PCR) is the software load that runs on these members of the Nortel Multiservice Switch family:
•Multiservice Switch 7400 series
•Multiservice Switch 15000
•Multiservice Switch 15000 VSS
•Multiservice Switch 20000
One load supports all of these nodes. Each PCR is given an incremental version number, 4.1 for example. The software version directly supports specific hardware and software functionality and services that are added or changed for a release.
Passport queue controller (PQC)
A hardware chip on some Nortel Multiservice Switch ATM function processors that performs base layer functions, such as ATM cell forwarding and frame forwarding for frame relay and IP traffic.
Passport to Passport interface (PPI)
A proprietary ATM interface between Nortel Multiservice Switch nodes. The PPI is the Multiservice Switch system’s interim NNI
patch
A patch is a temporary enhancement or correction to the functionality of an application version. Patches allow for a number of small changes to be made to an application until the next version of the application is available. In general, a new application version will incorporate all the changes in functionality made in the preceding patches.
path
The instance of a route for a logical connection in the network that has a flow in each direction. It is the sequence of Nortel Multiservice Switch trunks that is used to form the connection.
path administrator (PA)
A subcomponent of Nortel Multiservice Switch Trunk component, that is used to describe
Nortel Multiservice Switch 7400/15000/20000
Terminology
PCR7.2 and up March 2006
Copyright © 2006, Nortel | Nortel Confidential |