SYSTEMS AND METHOD FOR SINGLE QUEUE MULTI-STREAM TRAFFIC SHAPING WITH DELAYED COMPLETIONS TO AVOID HEAD OF LINE BLOCKING

Systems and methods of performing traffic shaping in a network device are provided. A network interface driver of the network device can store descriptors associated with packets received from multiple streams in a transmission queue in a first order. The network interface driver can transfer the descriptors to a traffic shaping module. In response to determining that a packet from a first stream, among the received packets, has been successfully transmitted by a network card, the network interface driver can communicate a packet transmission completion message corresponding to the packet to a software application that has awaited receipt of a packet transmission completion message before forwarding additional data packets from the first stream to the network interface driver. The network interface driver can communicate packet transmission completion messages corresponding to the packets received from the multiple streams to the software application in a second order, different from the first order.