Foundations of Modern Networking: SDN, NFV, QoE, IoT, and Cloud by William Stallings

Author:William Stallings [Stallings, William]
Language: eng
Format: epub, mobi
Publisher: Pearson Education
Published: 2015-10-26T21:00:00+00:00

Discard policy: A discard policy determines which packets to drop when a buffer is full and new packets arrive. A discard policy can be an important element in managing congestion and meeting QoS guarantees.

ISA Components

Figure 10.2 is a general depiction of the implementation architecture for ISA within a router. Below the thick horizontal line are the forwarding functions of the router; these are executed for each packet and therefore must be highly optimized. The remaining functions, above the line, are background functions that create data structures used by the forwarding functions. Thus, the lower portion of Figure 10.2 corresponds roughly to the data plane of Figure 10.1, and the upper portion corresponds to the control plane.

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