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List of terms
option
An option modifies the behavior or provides more information about a verb being applied to a component. For example, the display
option type
The data type of an option.
option value
The entered value for an option, as permitted by its type.
OSI
See Open Systems Interconnection (OSI) (page 93).
OSI state
Nortel Multiservice Switch systems define component states according to the OSI standards. A component has three
OSI status
In addition to the three state attributes, six status attributes exist within OSI. The primary function of these attributes is to provide additional information about a component’s operability and usage. The attributes are: alarm status, procedural status, availability status, control status, standby status, and unknown status. For more information, see
OSPF
See open shortest path first (OSPF) (page 92).
outside link
A link to a
overflow routing
Overflow routing is the process by which Nortel Multiservice Switch networks switch traffic from a chosen link to an alternate link, when the chosen link becomes congested. Normal reliability traffic will overflow only to links in the same link group. High reliability traffic can also overflow onto links in a different link group, under certain conditions.
Nortel Multiservice Switch 7400/15000/20000
Terminology
PCR7.2 and up March 2006
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