Marvell Asia Pte., Ltd.

Nick Jamba

Richard Eugene Kessler

Victor Hart

Bhargava Narumanchi

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.

Limiting backpressure with bad actors

In an embodiment, a method comprises, loading, from at least one source of packets to a memory, a packet based on a network scheduler indicating availability of bandwidth from the at least one source of packets to the memory that is at least the average size of packets. The method further includes updating the average size of the packets based on a size of the loaded packet. The method further includes reconciling the availability of bandwidth indicated by the network scheduler based on the size of the loaded packet.

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Lancaster, MA, United States of America

Nick Jamba