L
- latency
The amount of time that it takes for a piece of data, such as a TCP or UDP datagram, to pass through a networked device or transmission facility.
- logical adjacency
The layered approach to systems design enables applications or protocols on different machines to appear to be communicating directly with each other. In reality, communications flow vertically through the layered functions rather than horizontally between peer processes or applications. This concept is known as logical adjacency.
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