公开(公告)号：US11095560B2

公开(公告)日：2021-08-17

申请号：US15859390

申请日：2017-12-30

Applicant: Intel Corporation

Inventor： Gary Muntz ,  Robert Zak ,  Thomas Lovett ,  Michael A. Parker

IPC: H04L12/803 ,  H04L12/66 ,  H04L12/801 ,  H04L12/851 ,  H04L12/825

Abstract: Technologies for Ethernet gateway congestion management in HPC architectures include a high-performance computing (HPC) switch with an Ethernet gateway that is configured to receive an HPC packet from an HPC fabric via a virtual lane (VL) of the Ethernet gateway. The Ethernet gateway is further configured to determine whether the HPC packet corresponds to a backward error correction notification (BECN), identify one or more priority code points (PCPs) of the HPC packet corresponding to a BECN as a function of the VL on which the HPC packet was received, and generate an Ethernet priority-based flow control (PFC) frame that includes the one or more identified PCPs in a header of the Ethernet PFC frame. Additionally, the Ethernet gateway is configured to transmit the Ethernet PFC frame to an Ethernet fabric as a function of the one or more identified PCPs. Other embodiments are described herein.

公开(公告)号：US20190386934A1

公开(公告)日：2019-12-19

申请号：US16554064

申请日：2019-08-28

Applicant: Intel Corporation

Inventor： Ilango Ganga ,  Alain Gravel ,  Thomas Lovett ,  Radia Perlman ,  Greg Regnier ,  Anil Vasudevan ,  Hugh Wilkinson

IPC: H04L12/939 ,  H04L12/947 ,  H04L1/16

Abstract: This disclosure describes enhancements to Ethernet for use in higher performance applications like Storage, HPC, and Ethernet based fabric interconnects. This disclosure provides various mechanisms for lossless fabric enhancements with error-detection and retransmissions to improve link reliability, frame pre-emption to allow higher priority traffic over lower priority traffic, virtual channel support for deadlock avoidance by enhancing Class of service functionality defined in IEEE 802.1Q, a new header format for efficient forwarding/routing in the fabric interconnect and header CRC for reliable cut-through forwarding in the fabric interconnect. The enhancements described herein, when added to standard and/or proprietary Ethernet protocols, broadens the applicability of Ethernet to newer usage models and fabric interconnects that are currently served by alternate fabric technologies like Infiniband, Fibre Channel and/or other proprietary technologies, etc.

公开(公告)号：US10404625B2

公开(公告)日：2019-09-03

申请号：US14496667

申请日：2014-09-25

Applicant: Intel Corporation

Inventor： Ilango Ganga ,  Alain Gravel ,  Thomas Lovett ,  Radia Perlman ,  Greg Regnier ,  Anil Vasudevan ,  Hugh Wilkinson

IPC: H04L12/939 ,  H04L1/16 ,  H04L12/947 ,  H04L12/861

Abstract: This disclosure describes enhancements to Ethernet for use in higher performance applications like Storage, HPC, and Ethernet based fabric interconnects. This disclosure provides various mechanisms for lossless fabric enhancements with error-detection and retransmissions to improve link reliability, frame pre-emption to allow higher priority traffic over lower priority traffic, virtual channel support for deadlock avoidance by enhancing Class of service functionality defined in IEEE 802.1Q, a new header format for efficient forwarding/routing in the fabric interconnect and header CRC for reliable cut-through forwarding in the fabric interconnect. The enhancements described herein, when added to standard and/or proprietary Ethernet protocols, broadens the applicability of Ethernet to newer usage models and fabric interconnects that are currently served by alternate fabric technologies like Infiniband, Fiber Channel and/or other proprietary technologies, etc.

公开(公告)号：US11063884B2

公开(公告)日：2021-07-13

申请号：US16554064

申请日：2019-08-28

Applicant: Intel Corporation

Inventor： Ilango Ganga ,  Alain Gravel ,  Thomas Lovett ,  Radia Perlman ,  Greg Regnier ,  Anil Vasudevan ,  Hugh Wilkinson

IPC: H04L12/939 ,  H04L1/16 ,  H04L12/947 ,  H04L12/861

Abstract: This disclosure describes enhancements to Ethernet for use in higher performance applications like Storage, HPC, and Ethernet based fabric interconnects. This disclosure provides various mechanisms for lossless fabric enhancements with error-detection and retransmissions to improve link reliability, frame pre-emption to allow higher priority traffic over lower priority traffic, virtual channel support for deadlock avoidance by enhancing Class of service functionality defined in IEEE 802.1Q, a new header format for efficient forwarding/routing in the fabric interconnect and header CRC for reliable cut-through forwarding in the fabric interconnect. The enhancements described herein, when added to standard and/or proprietary Ethernet protocols, broadens the applicability of Ethernet to newer usage models and fabric interconnects that are currently served by alternate fabric technologies like Infiniband, Fibre Channel and/or other proprietary technologies, etc.

公开(公告)号：US20190044864A1

公开(公告)日：2019-02-07

申请号：US15859390

申请日：2017-12-30

Applicant: Intel Corporation

Inventor： Gary Muntz ,  Robert Zak ,  Thomas Lovett ,  Michael A. Parker

IPC: H04L12/803 ,  H04L12/66 ,  H04L12/801 ,  H04L12/851 ,  H04L12/825

Abstract: Technologies for Ethernet gateway congestion management in HPC architectures include a high-performance computing (HPC) switch with an Ethernet gateway that is configured to receive an HPC packet from an HPC fabric via a virtual lane (VL) of the Ethernet gateway. The Ethernet gateway is further configured to determine whether the HPC packet corresponds to a backward error correction notification (BECN), identify one or more priority code points (PCPs) of the HPC packet corresponding to a BECN as a function of the VL on which the HPC packet was received, and generate an Ethernet priority-based flow control (PFC) frame that includes the one or more identified PCPs in a header of the Ethernet PFC frame. Additionally, the Ethernet gateway is configured to transmit the Ethernet PFC frame to an Ethernet fabric as a function of the one or more identified PCPs. Other embodiments are described herein.