Cisco Technology, Inc.

Leonardo Amatori

Steven Philip Holmes

Paramananda Ponnaiyan

A device and method for packet flow control is described. The method may comprise, at a packet sender device, adding a flow control identifier to a packet and transmitting a packet with the packet flow control identifier to a packet receiver device over a data path. Thereafter, the packet receiver device may receive, from the packet receiver device, flow control data that includes a received flow control identifier generated in response to the sent flow control identifier. The sent flow control identifier may then be compared with the received flow control identifier and a state of a receiver buffer at the receiver packet device may be estimated based on the comparison. In an example embodiment, at the packet sender device, a flow control instruction may be added to the packet to instruct the packet receiver device to enter a 'no transmit' state.

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Cary, NC, United States of America

Leonardo Amatori