Limiting Backpressure With Bad Actors

In an embodiment, a method includes, in response to detecting available memory of a destination node of a packet flow of nodes to the destination node being below a particular threshold, marking the destination node as being in a backpressure state. The destination node, in the backpressure state, s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Jamba, Nick, Kessler, Richard E, Hart, Victor
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:In an embodiment, a method includes, in response to detecting available memory of a destination node of a packet flow of nodes to the destination node being below a particular threshold, marking the destination node as being in a backpressure state. The destination node, in the backpressure state, sends a signal indicating a condition of packet backpressure to the nodes of the packet flow, and initiates a timer for a particular time period. The method further marks, at the end of the particular time period, the destination node as being in a bad actor state if the available memory is below the particular threshold, and as being in a good actor state if the memory is above the particular threshold. The method, in response to marking the destination node as being in a bad actor state, sends a signal to the nodes causing the nodes to drop packets directed to the destination node.