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List of terms

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)

1In 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.

2See also switched permanent virtual circuit (SPVC) (page 129).

Nortel Multiservice Switch 7400/15000/20000

Terminology

NN10600-005 7.2S1 Standard

PCR7.2 and up March 2006

Copyright © 2006, Nortel

Nortel Confidential

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Panasonic 15000 Peak cell rate PCR, Peer database exchange protocol, Peer group identifier, Peer group leader PGL