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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
attribute
Defines the behavior or information associated with a specific component.
Attributes are either operational or provisionable. See also
operational
attribute (page 93) and provisionable attribute (page 107).
attribute type
Specifies the structure of the attribute’s value (for example, decimal, hex,
BCD, integer, or IP address).
attribute value
The current setting for an attribute. The structure of the value is dictated by the
type of attribute.
automatic protection switching (APS)
APS detects faults in SONET or SDH lines that are connected to the active
function processor. Under line APS, two SONET or SDH lines are defined:
working and protection. Either line can be active. Line APS monitors the line
that is active and when necessary causes the card to switch to the other line.
autonomous system (AS)
An autonomous system is one or more networks that are under the control of
one enterprise. These networks are usually under the control of a single
routing protocol.
autonomous system boundary router (ASBR)
An ASBR is a gateway between autonomous systems. ASBRs are the
backbone of the Internet.
autonomous system weight policy
The autonomous system weight policy allows you to set a preference for some
autonomous systems and discriminate against others. You can assign each
autonomous system a weight, where the border gateway protocol (BGP)
prefers the path with lowest weight.
AV
See application version (AV) (page 11).
AVL
See application version list (AVL) (page 11).
availability
The percentage of time during which a device or service is ready for use.