Marvell Israel (misl) Ltd.

Yakov Yonai

Alex Pinskiy

A method for controlling the flow of data traffic on a destination device in a network involves (a) providing a table associated with the destination device; (b) reading each entry of the table from the start of the table to the end of the table; (c) for each port entry read, determining whether a buffer storage threshold for data received from a source port has been exceeded. When the buffer storage threshold for data received from the source port is determined to have been exceeded, an internal stop message is transmitted to a media access control unit on the destination device, otherwise an internal continue message is transmitted to the media access control unit. Operations (b) and (c) are repeated for each of a plurality of read cycles.

Method and network device for controlling the flow of data traffic

This disclosure describes systems and methods for priority flow control in a network switching device having two or more egress queue managers for managing egress queues of ports of the network switching device. A first egress queue manager determines respective fill levels of packet data that is buffered in egress queues. The first egress queue manager generates a data structure that relates a port of the egress queue manager at which selected packets are ingressed and a port or an egress queue of the egress queue manager from which the selected packets are to be egressed. The first egress queue manager signals to one or more other egress managers the respective fill levels of egress queues along with other information to enable at least one of the other egress queue managers to make a priority flow control decision for one of the ports managed by the other egress queue manager.

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Tel Aviv, Israel

Yakov Yonai