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List of terms
ACR
See available cell rate (ACR) (page 16).
active alarm list
A list of active alarms, residing on each running card, that have been raised but not yet cleared.
actual shaping rate (ASR)
The shaping rate that is applied to a given ATM virtual channel connection (VCC) or virtual path connection (VPC). This value is based on the traffic descriptor type parameters and the quality of service specified for the connection, and is determined through traffic shaping.
adaptive differential pulse code modulation (ADPCM)
A widely used voice compression technique standardized by the
address plan
Specifies the format of the addresses that identify the network elements to which Nortel Multiservice Switch nodes can route packets. The address plan is known by every node capable of receiving such packets. The plan can be either internal or external to Multiservice Switch. Multiservice Switch uses the external
address prefix
A string of bits that forms the lead portion of one or more ATM addresses. The length of the prefix is a maximum of 152 bits.
address resolution protocol (ARP)
A mechanism for mapping an IP network layer address to a data link layer address.
address scope
In ATM PNNI networking, a configured value for each node that participates in the network. Address scope is assigned to the node address and defines the highest level up to which the node advertises this address in the PNNI hierarchy.
address space manager (ASM)
A component in a LEN node that assigns and frees session addresses.
address summarization
In ATM PNNI networking, reduces the amount of addressing information that needs to be distributed throughout the network. Address summarization makes scaling in large networks possible. See summary address (page 129).
Nortel Multiservice Switch 7400/15000/20000
Terminology
PCR7.2 and up March 2006
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