公开(公告)号：US11650844B2

公开(公告)日：2023-05-16

申请号：US17157646

申请日：2021-01-25

Applicant: Cisco Technology, Inc.

Inventor： Marcel Paul Sosthène Enguehard ,  Yoann Desmouceaux ,  Jordan Augé

IPC: G06F9/455 ,  G06F9/48 ,  G06F9/50

CPC classification number: G06F9/4856 ,  G06F9/45558 ,  G06F9/5088 ,  G06F2009/45575

Abstract: Systems, methods, and computer-readable media for migrating an application container between nodes in a network are disclosed. An interest for an application container may be received by an origin node and, in response, the origin node may transfer a copy of the application container over the network and to a destination node. The origin node can then shut down the application container and transmit any remaining container state and received requests to the destination node. The destination node may then update a routing plane for the network to provide delivery of service requests to the migrated application.

公开(公告)号：US20220294758A1

公开(公告)日：2022-09-15

申请号：US17485789

申请日：2021-09-27

Applicant: Cisco Technology, Inc.

Inventor： Yoann Desmouceaux ,  Rucha Sanjay Vaidya ,  Murali Muniraman ,  Pierre Pfister

IPC: H04L29/12

Abstract: According to certain embodiments, a system comprises one or more processors and one or more computer-readable non-transitory storage media comprising instructions that, when executed by the one or more processors, cause one or more components of the system to perform operations. The operations comprise receiving a packet comprising a source address; selecting an uplink for the packet, the uplink selected from a plurality of uplinks based on an uplink selection policy; determining whether the source address is valid on the selected uplink; determining whether to keep or re-write the source address based on whether the source address is valid on the selected uplink; keeping the source address when the source address is valid on the selected uplink or re-writing the source address when the source address is not valid on the selected uplink; and sending the packet to the selected uplink.

公开(公告)号：US20220103631A1

公开(公告)日：2022-03-31

申请号：US17547766

申请日：2021-12-10

Applicant: Cisco Technology, Inc.

Inventor： Andre Jean-Marie Surcouf ,  Guillaume Ruty ,  Mohammed Hawari ,  Aloÿs Christophe Augustin ,  Yoann Desmouceaux

IPC: H04L29/08

Abstract: Systems, methods, and computer-readable media for reducing distributed storage operation latency using segment routing. In some examples, a method can involve receiving, from a client, a message identifying an intent to store or retrieve data on a distributed storage environment, and sending to the client a segment routing (SR) list identifying storage node candidates for storing or retrieving the data. The method can involve steering a data request from the client through a path defined by the SR list based on a segment routing header (SRH) associated with the request, the SRH being configured to steer the request through the path until a storage node from the storage node candidates accepts the request. The method can further involve sending, to the client device, a response indicating that the storage node has accepted the request and storing or retrieving the data at the storage node that accepted the request.

公开(公告)号：US11233737B2

公开(公告)日：2022-01-25

申请号：US16715308

申请日：2019-12-16

Applicant: Cisco Technology, Inc.

Inventor： Pierre Pfister ,  Yoann Desmouceaux ,  William Mark Townsley

IPC: H04L12/28 ,  H04L12/803 ,  H04L12/801 ,  H04L12/911 ,  H04J1/16

Abstract: Aspects of the subject technology provide state-less load-balancing using sequence numbers to identify traffic flows. In some implementations, a process of the technology can include steps for receiving, by a load-balancer, a first packet from a source device including a request to access the service provided by a server coupled to the load-balancer, determining a load for each of the servers, wherein each server is associated with a unique set of sequence numbers, and forwarding the request to a target server selected based on its corresponding load, and wherein the request is configured to cause the target server to issue a reply to the source device. Systems and machine-readable media are also provided.

公开(公告)号：US11216298B2

公开(公告)日：2022-01-04

申请号：US16829948

申请日：2020-03-25

Applicant: Cisco Technology, Inc.

Inventor： Yoann Desmouceaux ,  Pierre Pfister ,  William Mark Townsley

IPC: G06F9/455 ,  H04L12/931

Abstract: Techniques for zero-loss workload mobility with segment routing for virtual machines are presented. The techniques include receiving, by a virtual router, an electronic message destined for a first virtual machine running on a first physical machine and checking a first virtual machine state for the first virtual machine. In response to determining that it is associated with a running state indicating the first physical machine, inserting a segment routing header including an indication of the source virtual machine, the first physical machine, and the first virtual machine. In response to determining that it is associated with a migration state, inserting, by the virtual router, a segment routing header indicating the source virtual machine, an END.S for the first physical machine, the first virtual machine; and an END.SBUF for a second physical machine. The message is then routed based at least in part on the inserted segment routing header.

公开(公告)号：US11113114B2

公开(公告)日：2021-09-07

申请号：US16379620

申请日：2019-04-09

Applicant: Cisco Technology, Inc.

Inventor： Pierre Pfister ,  William Mark Townsley ,  Marcel Paul Sosthène Enguehard ,  Guillaume Ruty ,  Yoann Desmouceaux

IPC: G06F9/50 ,  G06F9/455 ,  H04L9/06

Abstract: Systems, methods, and computer-readable media are provided for load balancing requests and controlling object replication based on object popularity. A request for an object can be received at a dispatcher of a storage system from a client. Candidate storage nodes of the storage system for serving the object can be identified by the dispatcher by generating an ordered list of the candidate storage nodes using a two-dimensional consistent hashing function. Distribution of the request for the object through one or more candidate storage nodes for filling the request for the object can be facilitated according to the ordered list of candidate storage nodes. Specifically, the one or more candidate storage nodes can be configured to facilitate distribution of the request by selectively filling the request to the client using cache admission policies formed based on popularity characteristics of requested objects at the one or more candidate storage nodes.

公开(公告)号：US20210194725A1

公开(公告)日：2021-06-24

申请号：US16799346

申请日：2020-02-24

Applicant: Cisco Technology, Inc.

Inventor： Pierre Pfister ,  William Mark Townsley ,  Yoann Desmouceaux ,  David Delano Ward

IPC: H04L12/46 ,  G06F16/95

Abstract: This disclosure describes methods and systems to externally manage network-to-network interconnect configuration data in conjunction with a centralized database subsystem. An example of the methods includes receiving and storing, in the centralized database subsystem, data indicative of user intent to interconnect at least a first network and a second network. The example method further includes, based at least in part on the data indicative of user intent, determining and storing, in the centralized database subsystem, a network intent that corresponds to the user intent. The example method further includes providing data indicative of the network intent from the centralized database subsystem to a first data plane adaptor, associated with the first network, and a second data plane adaptor, associated with the second network.

公开(公告)号：US20210036951A1

公开(公告)日：2021-02-04

申请号：US17071919

申请日：2020-10-15

Applicant: Cisco Technology, Inc.

Inventor： Giles Douglas Yorke Heron ,  Edward A. Warnicke ,  William Mark Townsley ,  Yoann Desmouceaux

IPC: H04L12/707 ,  H04L12/715 ,  H04L12/703 ,  H04L12/721 ,  H04L29/12

Abstract: Systems and methods provide for segment routing (SR) with fast reroute in a container network. An SR ingress can receive a packet from a first container destined for a container service. The ingress can generate an SR packet including a segment list comprising a first segment to a first container service host, a second segment to a second service host, and a third segment to the service. The ingress can forward the SR packet to a first SR egress corresponding to the first host using the first segment. The first egress can determine whether the first service and/or host is reachable. If so, the first egress can forward the SR packet to the first host or the packet to the service. If not, the first egress can perform a fast reroute and forward the SR packet to a second SR egress corresponding to the second host using the second segment.

公开(公告)号：US10904335B2

公开(公告)日：2021-01-26

申请号：US16121525

申请日：2018-09-04

Applicant: Cisco Technology, Inc.

Inventor： Andre Jean-Marie Surcouf ,  Guillaume Ruty ,  Mohammed Hawari ,  Aloÿs Christophe Augustin ,  Yoann Desmouceaux

IPC: H04L29/08 ,  H04L29/06

Abstract: Systems, methods, and computer-readable media for reducing distributed storage operation latency using segment routing. In some examples, a method can involve receiving, from a client, a message identifying an intent to store or retrieve data on a distributed storage environment, and sending to the client a segment routing (SR) list identifying storage node candidates for storing or retrieving the data. The method can involve steering a data request from the client through a path defined by the SR list based on a segment routing header (SRH) associated with the request, the SRH being configured to steer the request through the path until a storage node from the storage node candidates accepts the request. The method can further involve sending, to the client device, a response indicating that the storage node has accepted the request and storing or retrieving the data at the storage node that accepted the request.

公开(公告)号：US10901781B2

公开(公告)日：2021-01-26

申请号：US16130824

申请日：2018-09-13

Applicant: Cisco Technology, Inc.

Inventor： Marcel Paul Sosthéne Enguehard ,  Yoann Desmouceaux ,  Jordan Augé

IPC: G06F9/48 ,  G06F9/455 ,  G06F9/50

Abstract: Systems, methods, and computer-readable media for migrating an application container between nodes in a network are disclosed. An interest for an application container may be received by an origin node and, in response, the origin node may transfer a copy of the application container over the network and to a destination node. The origin node can then shut down the application container and transmit any remaining container state and received requests to the destination node. The destination node may then update a routing plane for the network to provide delivery of service requests to the migrated application.