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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
peak cell rate (PCR)
The maximum transfer rate into a network, defined as upper bound on the
inverse of the time interval between two consecutive ATM cell emissions.
peer database exchange protocol
A protocol between two neighboring ATM nodes to synchronize their topology
databases over an RCC channel.
peer group
A set of logical nodes that the network engineer groups together for the
purposes of creating a routing hierarchy. All members of the group exchange
PTSEs.
peer group identifier
A string of bits that unambiguously identifies a peer group.
peer group leader (PGL)
A node in a peer group that performs the extra work of collecting, aggregating,
and building data that represents the entire peer group as a single node. The
PGL makes this representation available to the network through the parent
node.
peer group leader election (PGLE)
The peer group leader election is the process by which a single node in a peer
group is elected to be the peer group leader.
performance measurements
Real-time statistics that are collected by the data collection system (DCS)
from various applications. These real-time statistics are used for day-to-day
troubleshooting activities.
permanent logical connection (PLC)
A connection that is an association between two points in the network for the
purpose of exchanging data. The connection is called permanent because it
is set up by PORS when the service is provisioned.
permanent switched permanent virtual circuit (P-SPVC)
1 In frame relay networking, a configured connection between two SPVC
endpoints in different frame relay networks. The P-SPVC uses a switched
connection (S-SPVC) across frame relay network-to-network interfaces
(NNIs) to establish end-to-end connectivity.
2 See also switched permanent virtual circuit (SPVC) (page 129).