Filter
Top Products
- 96 -
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
Packet over SONET
When POS is supported, the generic queue manager (GQM) function
processor (FP) cards of a Nortel Multiservice Switch
7400, Multiservice
Switch
15000, or Multiservice Switch 20000 nodes transmit or receive
packets over SONET (POS), or over SDH. POS handles whatever the packet-
based data is because it is a layer 3 protocol over a layer 1 transmission with
no layer 2.
packet voice gateway (PVG)
A gateway between an ATM network and service provider networks that
allows voice and voice band data traffic to be delivered over an ATM
broadband network instead of the narrowband nodes of the PSTN.
The term “PVG” is synonymous with the term “media gateway”. Refer to media
gateway (MG) (page 80) for more information.
panic
An abnormal halt to operations caused by an internal error. When an internal
error occurs and the router is unable to recover gracefully, the router
generates a text string, saves logout areas, and halts operations. A panic can
lead to a restart if the nucleus is configured to restart on error.
parent node
The logical group node that represents the containing peer group of a specific
node at the next higher level of the hierarchy.
parent peer group
The parent peer group of a peer group contains the logical group node that
represents that peer group.
partial packet discard (PPD)
A Nortel Multiservice Switch ATM traffic management strategy through which
cells are discarded if they belong to a frame that has had one or more cells
previously discarded. This strategy ensures that cells that will eventually be
discarded at the endpoints are not transmitted across the network, thereby
increasing network good-put.
party
Is sometimes used interchangeably with leaf. However, a party should more
accurately be considered as a component of a PMP call with its primary
attribute being the destination that it defines. For example, in a PMP SPVC
context, a provisioned party on the SPVC will result in a leaf when that portion
of the PMP connection terminates. Branches for the PMP call in transit nodes
can be servicing single or multiple parties, each of which will terminate at a
leaf.