 task filter.
A limit on one system's authorization to attach transactions and access resources in another. Link security works by signing on each end of a session (to RACF, in CICS Transaction Server) when the session is bound. Each half-session then has the access requirements of the single user profile defined for the remote system as a whole. This profile is applied when a transaction is attached and whenever the transaction accesses a protected resource. See also session security.
link semantic type
A semantic type that can be assigned only to a link or a link type. See also semantic type.
In routing protocols, the advertised information about the usable interfaces and reachable neighbors of a router or network. The protocol's topological database is formed from the collected link-state advertisements.
link-state advertisement (LSA)
In a link-state routing protocol, a packet that contains information about neighbors and path costs. Each router in an area generates its link-state database from the link-state advertisements (LSAs) that it receives from all the other routers in the same area and the LSAs that itself generates.
In a link-state routing protocol, a database that each router in an area generates from the link-state advertisements (LSAs) that it receives from all the other routers in the same area and the LSAs that itself generates. Based on the link-state database, each router calculates the shortest-path spanning tree, with itself as the root, using the Shortest Path First (SPF) algorithm.
link-state routing protocol
A type of routing protocol in which each router uses the Shortest Path First (SPF) algorithm to calculate shortest (lowest-cost) paths, and broadcasts or multicasts information regarding the cost of reaching each of its neighbors to all nodes in the internetwork. See also distance-vector routing protocol, Shortest Path First.
- In VTAM, a named resource within an APPN or a subarea node that represents the connection to another APPN or subarea node that is attached by an APPN or a subarea link. In the resource hierarchy in a subarea network, the link station is subordinate to the subarea link. See also adjacent link station.
- The part of data link control that is responsible for the transfer of data on a single logical link.
In SNA, a test in which one link station returns data that is received from another link station without changing the data in order to test the operation of the link. Three tests can be made; they differ in the resources that are dedicated during the test.
- A definition of a relationship between artifacts. A link type has a relationship label that indicates how the linked artifacts are related.
- The base URI that groups links for different interactions on the same resource.
- A descriptor of the characteristics of a link, including the properties it can contain and its appearance in visualizations.
Linux disk layout
A basic disk structure for Linux on System z. See also compatible disk layout.
See loop initialization primitive.
See logical IP subnet.
- In Backup, Recovery, and Media Services, an entry in a control group that contains similar items such as libraries, folders, or objects.
- A data object consisting of a collection of related records.
- A means of filtering plan and database objects and presenting them in a table.
- A set of values that is displayed to the user. The user selects from the list to respond to a prompt.
- A type of object, which DB2 utilities can process, that identifies multiple table spaces, multiple index spaces, or both. A list is defined with the LISTDEF utility control statement.
An object that defines the association between a connection factory, a destination, and a deployed message-driven bean. Listener ports simplify the administration of the associations between these resources.
list entry handle
A value that uniquely distinguishes an entry in a user interface manager (UIM) list until it is removed from the list. A list entry handle is meaningful only for a particular application, list, and entry combination.
list header number
The 