公开(公告)号：US20220038419A1

公开(公告)日：2022-02-03

申请号：US17503011

申请日：2021-10-15

Applicant: Cisco Technology, Inc.

Inventor： Kyle Andrew Donald Mestery ,  Grzegorz Boguslaw Duraj

IPC: H04L29/12 ,  H04L12/24 ,  H04L29/06

Abstract: A system receives a first request from a first instance of a network function associated with a first address. The system may determine the first address and, based at least in part on the first address, may identify a second address with which to respond to the first request. The system may then send, to the first instance of the network function, a response to the first request specifying the second address. The system may also receive a second request from a second instance of the network function associated with a third address. The system may determine a fourth address with which to respond to the second request, and may thereafter send a response to the second request to the second instance of the network function, with the response specifying the fourth address.

公开(公告)号：US20220030065A1

公开(公告)日：2022-01-27

申请号：US17329327

申请日：2021-05-25

Applicant: Cisco Technology, Inc.

Inventor： Dominik Rene Tornow ,  Urmil Vijay Dave ,  Kyle Andrew Donald Mestery ,  Ian Wells

IPC: H04L29/08

Abstract: Systems, methods, and computer-readable media are provided for reusing execution environments and code of serverless functions while ensuring isolation in serverless computing environments. In some examples, a method can include, in response to a first request to run a serverless function, executing, at an execution environment on a network, computer-readable code configured to perform the serverless function; after the computer-readable code has executed, modifying a pointer to an area of memory used to store a first state of the serverless function to reference a different area of memory; in response to a second request to run the serverless function, reusing, at the execution environment, the computer-readable code to perform the serverless function; and based on the pointer referencing the different area of memory, using the different area of memory to store a second state of the serverless function.

公开(公告)号：US20210320980A1

公开(公告)日：2021-10-14

申请号：US17333716

申请日：2021-05-28

Applicant: Cisco Technology, Inc.

Inventor： Ian James Wells ,  Kyle Andrew Donald Mestery

IPC: H04L29/08 ,  H04L12/24

Abstract: Methods and architecture for load-correcting requests for serverless functions to reduce latency of serverless computing are provided. An example technique exploits knowledge that a given server node does not have a serverless function ready to run or is overloaded. Without further processing overhead or communication, the server node shifts the request to a predetermined alternate node without assessing a current state of the alternate node, an efficient decision based on probability that a higher chance of fulfillment exists at the alternate node than at the current server, even with no knowledge of the alternate node. In an implementation, the server node refers the request but also warms up the requested serverless function, due to likelihood of repeated requests or in case the request is directed back. An example device has a front-end redirecting server and a backend serverless system in a single component.

公开(公告)号：US20210026692A1

公开(公告)日：2021-01-28

申请号：US16518242

申请日：2019-07-22

Applicant: Cisco Technology, Inc.

Inventor： Kyle Andrew Donald Mestery ,  Ian Wells ,  David Delano Ward

IPC: G06F9/50 ,  H04L29/08

Abstract: A method includes receiving a DNS request, notifying a serverless orchestrator system of data associated with the DNS request, provisioning a function on a serverless function node based on the DNS request, notifying a load balancer regarding the serverless function node, providing a response to the DNS request and routing an API request associated with the DNS request to the serverless function node.

公开(公告)号：US20160036707A1

公开(公告)日：2016-02-04

申请号：US14877034

申请日：2015-10-07

Applicant: Cisco Technology, Inc.

Inventor： Kyle Andrew Donald Mestery ,  Debojyoti Dutta ,  Edgar Francisco Magana Perdomo

IPC: H04L12/851 ,  H04L29/08 ,  H04L12/46 ,  H04L12/24

CPC classification number: H04L47/2408 ,  H04L12/4633 ,  H04L12/4641 ,  H04L41/12 ,  H04L41/50 ,  H04L67/10

Abstract: Techniques are provided to generate and store a network graph database comprising information that indicates a service node topology, and virtual or physical network services available at each node in a network. A service request is received for services to be performed on packets traversing the network between at least first and second endpoints. A subset of the network graph database is determined that can provide the services requested in the service request. A service chain and service chain identifier is generated for the service based on the network graph database subset. A flow path is established through the service chain by flow programming network paths between the first and second endpoints using the service chain identifier.