公开(公告)号：US10243858B2

公开(公告)日：2019-03-26

申请号：US15869531

申请日：2018-01-12

Applicant: Cisco Technology, Inc.

Inventor： Erico Vanini ,  Rong Pan ,  Mohammadreza Alizadeh Attar ,  Thomas J. Edsall

IPC: H04L12/803 ,  G06F13/28 ,  H04L12/911 ,  H04L12/923 ,  H04L12/707

Abstract: A first flowlet of a flow from a source network device to a destination network device is assigned to a first path of a plurality of paths between the source device and the destination device. The assignment of the first flowlet to the first path is made by a network connected device. A second flowlet is detected in response to an interruption in transmission of the flow due to congestion along the first path, wherein the interruption is longer in duration than a difference in a transmission time between the source network device and the destination network device along each of the plurality of paths. The second flowlet is assigned to a second path of the plurality of paths by the network connected device. According to some example embodiments, the second path is randomly selected from the plurality of paths.

公开(公告)号：US11070321B2

公开(公告)日：2021-07-20

申请号：US16172708

申请日：2018-10-26

Applicant: Cisco Technology, Inc.

Inventor： Erico Vanini

IPC: H04L12/863 ,  H04L12/841 ,  H04L12/835 ,  H04L12/825 ,  H04L12/823 ,  H04L12/801 ,  H04L12/26 ,  H04L1/18 ,  H04L1/16

Abstract: Techniques for dropping packets at congested network elements for no drop traffic are described. A network element in communication with a congested network element initiates a copy packet queue and stores a copy of each transmitted no-drop packet sent to the congested element. When the network element receives an indication that the congested element has dropped a no-drop packet, the network element begins retransmission of the dropped packets to the congested element from the copy packet queue, thus providing a lossless network while allowing for dropped packets.

公开(公告)号：US20180139138A1

公开(公告)日：2018-05-17

申请号：US15869531

申请日：2018-01-12

Applicant: Cisco Technology, Inc.

Inventor： Erico Vanini ,  Rong Pan ,  Mohammadreza Alizadeh Attar ,  Thomas J. Edsall

IPC: H04L12/803 ,  H04L12/911 ,  H04L12/707 ,  H04L12/923

CPC classification number: H04L47/125 ,  H04L45/24 ,  H04L47/122 ,  H04L47/762 ,  H04L47/822

Abstract: A first flowlet of a flow from a source network device to a destination network device is assigned to a first path of a plurality of paths between the source device and the destination device. The assignment of the first flowlet to the first path is made by a network connected device. A second flowlet is detected in response to an interruption in transmission of the flow due to congestion along the first path, wherein the interruption is longer in duration than a difference in a transmission time between the source network device and the destination network device along each of the plurality of paths. The second flowlet is assigned to a second path of the plurality of paths by the network connected device. According to some example embodiments, the second path is randomly selected from the plurality of paths.

公开(公告)号：US09923828B2

公开(公告)日：2018-03-20

申请号：US15003172

申请日：2016-01-21

Applicant: Cisco Technology, Inc.

Inventor： Erico Vanini ,  Rong Pan ,  Mohammadreza Alizadeh Attar ,  Thomas J. Edsall

IPC: H04L1/00 ,  H04L5/22 ,  H04L12/16 ,  H04L12/803 ,  H04L12/911 ,  H04L12/923 ,  H04L12/707

CPC classification number: H04L47/125 ,  H04L45/24 ,  H04L47/122 ,  H04L47/762 ,  H04L47/822

Abstract: A first flowlet of a flow from a source network device to a destination network device is assigned to a first path of a plurality of paths between the source device and the destination device. The assignment of the first flowlet to the first path is made by a network connected device. A second flowlet is detected in response to an interruption in transmission of the flow due to congestion along the first path, wherein the interruption is longer in duration than a difference in a transmission time between the source network device and the destination network device along each of the plurality of paths. The second flowlet is assigned to a second path of the plurality of paths by the network connected device. According to some example embodiments, the second path is randomly selected from the plurality of paths.

公开(公告)号：US09742683B1

公开(公告)日：2017-08-22

申请号：US14931588

申请日：2015-11-03

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Erico Vanini ,  Rong Pan ,  Thomas J. Edsall

IPC: H04L12/863 ,  H04L12/875 ,  H04L12/865

CPC classification number: H04L47/6275 ,  H04L47/2458 ,  H04L47/6215 ,  H04L47/6255 ,  H04L47/6285

Abstract: A method is provided in one example embodiment and includes determining whether a packet received at a network node in a communications network is a high priority packet; determining whether a low priority queue of the network node has been deemed to be starving; if the packet is a high priority packet and the low priority queue has not been deemed to be starving, adding the packet to a high priority queue, wherein the high priority queue has strict priority over the low priority queue; and if the packet is a high priority packet and the low priority queue has been deemed to be starving, adding the packet to the low priority queue.

公开(公告)号：US20170085485A1

公开(公告)日：2017-03-23

申请号：US15003172

申请日：2016-01-21

Applicant: Cisco Technology, Inc.

Inventor： Erico Vanini ,  Rong Pan ,  Mohammadreza Alizadeh Attar ,  Thomas J. Edsall

IPC: H04L12/803 ,  H04L12/923 ,  H04L12/707 ,  H04L12/911

CPC classification number: H04L47/125 ,  H04L45/24 ,  H04L47/122 ,  H04L47/762 ,  H04L47/822

Abstract: A first flowlet of a flow from a source network device to a destination network device is assigned to a first path of a plurality of paths between the source device and the destination device. The assignment of the first flowlet to the first path is made by a network connected device. A second flowlet is detected in response to an interruption in transmission of the flow due to congestion along the first path, wherein the interruption is longer in duration than a difference in a transmission time between the source network device and the destination network device along each of the plurality of paths. The second flowlet is assigned to a second path of the plurality of paths by the network connected device. According to some example embodiments, the second path is randomly selected from the plurality of paths.