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1. 发明申请

WO2020068725A1 FINE GRAIN TRAFFIC SHAPING OFFLOAD FOR A NETWORK INTERFACE CARD 审中-公开
公开(公告)号：WO2020068725A1
公开(公告)日：2020-04-02
申请号：PCT/US2019/052560
申请日：2019-09-24
申请人： GOOGLE LLC
发明人： CHANDRA, Prashant , DUKKIPATI, Nandita , VALANCIUS, Vytautas
IPC分类号： G06F13/12 , G06F13/28 , G06F13/38 , H04L12/815 , H04L12/875 , H04L12/925 , H04L12/879 , H04L12/861
摘要： A network interface card (140) with traffic shaping capabilities and methods of network traffic shaping with a network interface card (140) are provided. The network interface card (140) and method can shape traffic originating from one or more applications (150a-c) executing on a host network device. The applications (150a-c) can execute in a virtual machine or containerized computing environment. The network interface card (140) and method can perform or include several traffic shaping mechanisms including, for example and without limitation, a delayed completion mechanism, a time-indexed data structure (130), a packet builder (142), and a memory manager (147).

2. 发明公开

EP4266645A1 CONGESTION CONTROL FOR NETWORKS USING DEPLOYABLE INT 审中-实审
公开(公告)号：EP4266645A1
公开(公告)日：2023-10-25
申请号：EP23168586.8
申请日：2023-04-18
申请人： Google LLC
发明人： MOSHREF JAVADI, Masoud , WANG, Weitao , LI, Yuliang , DUKKIPATI, Nandita , CARDWELL, Neal Douglas , KUMAR, Gautam
IPC分类号： H04L47/283 , H04L47/11 , H04L47/10 , H04L47/17 , H04L47/27 , H04L47/35
摘要： An aspect of the disclosed technology is a computing system that implements a congestion control (CC) protocol that exploits and extends in-network telemetry (INT) to address, for example, blind spots typically found in end-to-end algorithms, determines CC for an actual bottleneck hop, realizes low queuing delay, and/or realizes convergence to network-wide max-min fair bandwidth allocation.

3. 发明申请

WO2018136131A1 DEVICE AND METHOD FOR SCALABLE TRAFFIC SHAPING WITH A TIME-INDEXED DATA STRUCTURE 审中-公开
公开(公告)号：WO2018136131A1
公开(公告)日：2018-07-26
申请号：PCT/US2017/059385
申请日：2017-10-31
申请人： GOOGLE LLC
发明人： CONTAVALLI, Carlo , DUKKIPATI, Nandita , ISSA, Ahmed Said Mohamed Tawfik , VALANCIUS, Vytautas
IPC分类号： H04L12/815 , H04L12/825 , H04L12/875 , H04L12/823
摘要： Systems and methods of performing rate limiting traffic shaping with a time-indexed data structure in a network device are provided. A network interface driver of the network device can received packets at the packet layer of a network host from a plurality of applications. The network interface driver can prevent one of the applications from sending additional packets for transmission until the application received a transmission completion notification indicating a packet previously forwarded to the packet layer of the network host has been transmitted. The network interface driver can process the received packets to determine a transmission time for each packet based on at least on rate limit policy. The network interface driver can store an identifier associated with the respective packet in a time-indexed data structure at a position associated with the transmission time determined for the packet. The network interface driver can determine that a time indexed in the time-indexed data structure has been reached and in response transmit a packet associated with the identifier stored in the time-indexed data structure at a position associated with the reached time. The network interface driver can communicate a transmission completion notification subsequent to the network interface driver transmitting the packet.

4. 发明申请

WO2018136132A1 DEVICE AND METHOD FOR SCALABLE TRAFFIC SHAPING AT A RECEIVER WITH A TIME-INDEXED DATA STRUCTURE 审中-公开
公开(公告)号：WO2018136132A1
公开(公告)日：2018-07-26
申请号：PCT/US2017/060308
申请日：2017-11-07
申请人： GOOGLE LLC
发明人： CONTAVALLI, Carlo , DUKKIPATI, Nandita , ISSA, Ahmed Said Mohamed Tawfik , VALANCIUS, Vytautas
IPC分类号： H04L12/801
CPC分类号： H04L47/225 , H04L47/193 , H04L47/27
摘要： Systems and methods of performing rate limiting with a time-indexed data structure in a network device are provided. A transport protocol module of the network device can receive data packets from a remote computing device. The transport protocol module can generate a packet acknowledgement message which is received by the network interface driver. The network interface driver can process the received packet acknowledgement message to determine a transmission time for the packet acknowledgement message based on at least on rate limit policy. The network interface driver can store an identifier associated with the packet acknowledgement message in a time-indexed data structure. The network interface driver can determine that a time indexed in the time-indexed data structure has been reached and in response transmit a packet acknowledgement message associated with the identifier stored in the time-indexed data structure at a position associated with the reached time.

5. 发明申请

WO2018057255A1 DISTRIBUTED BANDWIDTH ALLOCATION AND THROTTLING 审中-公开
标题翻译：分布式带宽分配和调节
公开(公告)号：WO2018057255A1
公开(公告)日：2018-03-29
申请号：PCT/US2017/049366
申请日：2017-08-30
申请人： GOOGLE LLC
发明人： DUKKIPATI, Nandita , LAM, Vinh The , MENDELEV, Kirill , SHI, Li
IPC分类号： H04L12/911 , H04L12/813 , H04L12/815 , H04L12/823
摘要： A distributed bandwidth allocation system comprises a distributed bandwidth limiter, a first throttler, and a second throttler. The distributed bandwidth limiter receives first usage data for a first entity and second usage data for a second entity. Based on the first usage data, second usage data, and a total bandwidth allocation, the distributed bandwidth limiter determines a first bandwidth allocation specifying bandwidth available for network traffic for the first entity and a second bandwidth allocation that specifies bandwidth available for network traffic for the second entity, wherein a sum of the first bandwidth allocation and the second bandwidth allocation does not exceed the total bandwidth allocation. The first bandwidth allocation and the second bandwidth allocation are provided to respective throttlers that manage traffic for the first and second entities.
摘要翻译：分布式带宽分配系统包括分布式带宽限制器，第一调节器和第二调节器。分布式带宽限制器接收第一实体的第一使用数据和第二实体的第二使用数据。基于第一使用数据，第二使用数据和总带宽分配，分布式带宽限制器确定指定用于第一实体的网络业务的可用带宽的第一带宽分配和指定用于第一实体的网络业务的可用带宽的第二带宽分配第二实体，其中第一带宽分配和第二带宽分配之和不超过总带宽分配。第一带宽分配和第二带宽分配被提供给管理第一和第二实体的业务量的各个门限。

6. 发明公开

EP4266644A1 NETWORK CONGESTION CONTROL IN SUB-ROUND TRIP TIME 审中-实审
公开(公告)号：EP4266644A1
公开(公告)日：2023-10-25
申请号：EP23168706.2
申请日：2023-04-19
申请人： Google LLC
发明人： ARSLAN, Serhat , LI, Yuliang , KUMAR, Gautam , DUKKIPATI, Nandita
IPC分类号： H04L47/265 , H04L47/283 , H04L47/25 , H04L47/27
摘要： Aspects of the disclosure provide for congestion control mechanisms to reduce data transmission queues and to increase link utilization through precise congestion signals and reduction of control loop delay. A congestion control system (CC) system can utilize Back-To-Sender (BTS) packets over (round trip time) RTT control loop delay to react to congestion faster. The CC system can apply Proactive Ramp-up (PRU) to identify flow completions to occupy released bandwidth right on time, e.g., as bandwidth is made available. The CC system can perform supply matching (SM) through network calculus concepts to increase link utilization. The CC system can apply some or all of the use of BTS packets, PRU, and/or SM to reduce network latency and improve data flow completion time as compared with other approaches.

7. 发明公开

EP3930272A1 RATE UPDATE ENGINE FOR RELIABLE TRANSPORT PROTOCOL 审中-实审
公开(公告)号：EP3930272A1
公开(公告)日：2021-12-29
申请号：EP20213878.0
申请日：2020-12-14
申请人： Google LLC
发明人： WANG, Xiaoming , CHANDRA, Prashant , BANSOD, Neelesh , DUKKIPATI, Nandita , WASSEL, Hassan , KUMAR, Gautam , WANG, Weihuang , MARTY, Michael , McDONALD, Nicholas
IPC分类号： H04L12/801 , H04L12/825
摘要： A system includes a first processor configured to analyze packets received over a communication protocol system and determine one or more congestion indicators from the analysis of the data packets, the one or more congestion indicators being indicative of network congestion for data packets transmitted over a reliable transport protocol layer of the communication protocol system. The system also includes a rate update engine separate from the packet datapath and configured to operate a second processor to receive the determined one or more congestion indicators, determine one or more congestion control parameters for controlling transmission of data packets based on the received one or more congestion indicators, and output a congestion control result based on the determined one or more congestion control parameters.

8. 发明公开

EP3896573A1 FAULT TOLERANT DESIGN FOR CLOCK-SYNCHRONIZATION SYSTEMS 有权
公开(公告)号：EP3896573A1
公开(公告)日：2021-10-20
申请号：EP20211002.9
申请日：2020-12-01
申请人： Google LLC
发明人： LI, Yuliang , KUMAR, Gautam , DUKKIPATI, Nandita , WASSEL, Hassan , CHANDRA, Prashant , VAHDAT, Amin
IPC分类号： G06F11/16 , H04J3/06
摘要： A system is provided for synchronizing clocks. The system includes a plurality of devices in a network, each device having a local clock. The system is configured to synchronize the local clocks according to a primary spanning tree, where the primary spanning tree has a plurality of nodes connected through a plurality of primary links, each node of the plurality of nodes representing a respective device of the plurality of devices. The system is also configured to compute a backup spanning tree before a failure is detected in the primary spanning tree, wherein the backup spanning tree includes one or more backup links that are different from the primary links. As such, upon detection of a failure in the primary spanning tree, the system reconfigures the plurality of devices such that clock synchronization is performed according to the backup spanning tree.

9. 发明公开

EP3767466A1 PREDICTABLE VIRTUALIZED NIC 审中-公开
公开(公告)号：EP3767466A1
公开(公告)日：2021-01-20
申请号：EP20183815.8
申请日：2020-07-02
申请人： Google LLC
发明人： DUKKIPATI, Nandita , LEWIS, Nathaniel , KUMAR, Praveen , WANG, Yaogong
IPC分类号： G06F9/54 , G06F9/50 , H04L12/801
摘要： A method for controlling congestion in a datacenter network or server is described. The server includes a processor configured to host a plurality of virtual machines and an ingress engine configured to maintain a plurality of per-virtual machine queues configured to store received packets. The processor is also configured to execute a CPU-fair fair queuing process to control the processing of the packets by the processor. The processor is also configured to selectively trigger temporary packet per second packet transmission limits on top of a substantially continuously enforced bit per second transmission limit upon detection of a per virtual machine queue overload.

10. 发明公开

EP4318999A1 EARLY RETRANSMISSION FOR HARDWARE RELIABLE TRANSPORT 审中-实审
公开(公告)号：EP4318999A1
公开(公告)日：2024-02-07
申请号：EP23156845.2
申请日：2023-02-15
申请人： Google LLC
发明人： LI, Yuliang , WASSEL, Hassan Mohamed Gamal Hassan , MONTAZERI, Behnam , WANG, Weihuang , VADUVATHA, Srinivas , DUKKIPATI, Nandita , CHANDRA, Prashant R. , MOSHREF JAVADI, Masoud
IPC分类号： H04L1/1607 , H04L1/1867
摘要： The technology is directed to the use of a bitmap generated at a receiver to track the status of received packets sent by a transmitter. The technology may include a network device including an input port, output port, and circuitry. The circuitry may generate a transmitter bitmap that tracks each data packet sent to another network device. The circuitry of the network device may receive, from the other network device, a receiver bitmap that identifies each data packet that is received and not received from the network device. The circuitry may then determine which data packets to retransmit by comparing the transmitter bitmap to the receiver bitmap.

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