Patents in suit

US 11,563,655 Network monitoring apparatus and method thereof in programmable network virtualization

3 defendants · 3 suits · updated October 6, 2026

Also cited as U.S. Patent No. 11,563,655 · US11563655B2 · US 11,563,655 B2 · 11563655 · the '655 patent

Arc Link LLC has filed 3 patent-infringement suits on US 11,563,655, "Network monitoring apparatus and method thereof in programmable network virtualization" since June 8, 2026, all in the E.D. Tex., against 3 distinct defendants including Fortinet Inc., Check Point Software Technologies Ltd. and Sophos Limited. The patent is held by Ip3 2023 Series 923 Of Allied Security Trust I and was granted January 24, 2023 on a priority date of April 28, 2020. Its abstract opens: "Disclosed is a computing apparatus implemented with a network hypervisor implementing software defined network (SDN)-based network virtualization." The examiner cited 3 references during prosecution.

Assignee
Ip3 2023 Series 923 Of Allied Security Trust I
Priority date
April 28, 2020
Granted
January 24, 2023
Expires
April 28, 2040
Status
Active
Claims
12 (4 independent)
Inventors
Gyeongsik YANG, Minkoo Kang, Hyuck Yoo
Full text
Google Patents

The suits

3 cases · E.D. Tex. (3)

Filed Defendant Plaintiff Court Docket
2026-06-08 Fortinet Inc. Arc Link LLC E.D. Tex. 2:26-cv-00451
2026-06-17 Check Point Software Technologies Ltd. Arc Link LLC E.D. Tex. 2:26-cv-00476
2026-06-18 Sophos Limited Arc Link LLC E.D. Tex. 2:26-cv-00490

Docket links open the public record on CourtListener. Filing dates are the complaint's.

Independent claims

What is actually asserted, verbatim.

Claim 1

1. A computing apparatus implemented with a network hypervisor implementing software defined network (SDN)-based network virtualization, the computing apparatus comprising: a statistics virtualization module configured to receive a request for individual physical resource consumption statistics for a first virtual network of multiple separately managed virtual networks; determine whether the at least one physical resource is shared between the first virtual network and at least one other of the multiple separately managed virtual networks, and isolatedly provide individual physical resource consumption statistics to the first virtual network based on the determination whether the at least one physical resource is shared; wherein the statistics virtualization module provides respective virtual flow entry statistics to the first virtual network, including: provision of virtual flow entry statistics for the first virtual network, provision of virtual port statistics based on the at least one physical resource for the first virtual network.

Claim 8

8. A computing apparatus implemented with a network hypervisor implementing software defined network (SDN)-based network virtualization, the computing apparatus comprising: a transmission disaggregation module including a physical statistics cache configured to perform periodic monitoring of a plurality of physical switches and store statistics of the physical switches collected, wherein the transmission disaggregation module calculates virtual statistics for each of multiple separately managed virtual networks that share the plurality of physical switches based on the physical statistics in the physical statistics cache and provides the virtual statistics to each of multiple separately managed virtual networks based on isolated requests for individual physical resource consumption statistics.

Claim 10

10. A computing apparatus implemented with a network hypervisor implementing software defined network (SDN)-based network virtualization, the computing apparatus comprising: a physical statistics aggregation module configured to respond, with statistics of a plurality of switches, to a single monitoring request for virtual statistics for at least one of multiple separately managed virtual networks that share the plurality of switches, wherein the physical statistics aggregation module performs; physical statistics filter (pCollector filter) to determine an execution cycle of each of the physical statistics filter and physical statistics tuner; and physical statistics tuner (pCollector tuner) to give additional delay to a first execution of each pCollector.

Claim 12

12. A computing apparatus implemented with a network hypervisor implementing software defined network (SDN)-based network virtualization, the computing apparatus comprising: a statistics virtualization module configured to isolatedly provide individual statistics to each of multiple separately managed virtual networks that simultaneously share a plurality of switches; a transmission disaggregation module configured to include a physical statistics cache that performs periodic monitoring of the plurality of physical switches and store statistics of the physical switches collected; and a physical statistics aggregation module configured to respond, with statistics based on the plurality of physical switches, to a single monitoring request for virtual statistics for at least one of the multiple separately managed virtual networks.

Art before the examiner

11 references of record, 3 cited by the examiner.

Everything listed here was before the Office and is what a challenge must go beyond. Art the examiner never saw is where an invalidity search starts.

Examiner-cited

  • US20060250959A1 — Quality of service network and method (Haim Porat)
  • US9935854B2 — Infrastructure performance monitoring (Uila Networks, Inc.)
  • US20180287905A1 — Session-based traffic statistics logging for virtual routers (Juniper Networks, Inc.)
Applicant-cited and other (8)
  • KR20140051776A — Apparatus for network monitoring based on flow and network monitoring system
  • KR101485161B1 — System and method for providing real time streaming service
  • KR20160041631A — Apparatus and method for quality of service aware routing control
  • KR20160062688A — Overlay network based on the original packet flow mapping apparatus and method therefor
  • KR20160107920A — Autonomous control method in software defined network
  • KR101676570B1 — Method and system for providing virtual data center
  • KR20180122513A — Method and framework for traffic engineering in network hypervisor of sdn-based network virtualization platform
  • KR20190063231A — Data center management system based on sdn, and method thereof

Classification

  • H04L43/062primary — Generation of reports related to network traffic
  • H04L43/12primary — Network monitoring probes
  • H04L12/4641 — Virtual LANs, VLANs, e.g. virtual private networks [VPN]
  • H04L12/4675 — Dynamic sharing of VLAN information amongst network nodes
  • H04L41/142 — Network analysis or design using statistical or mathematical methods
  • H04L43/026 — Capturing of monitoring data using flow identification
  • H04L43/04 — Processing captured monitoring data, e.g. for logfile generation
  • H04L43/065 — Generation of reports related to network devices
  • H04L43/14 — Arrangements for monitoring or testing data switching networks using software, i.e. software packages
  • H04L43/20 — Arrangements for monitoring or testing data switching networks the monitoring system or the monitored elements being virtualised, abstracted or software-defined entities, e.g. SDN or NFV
  • H04L45/02 — Topology update or discovery
  • H04L45/56 — Routing software
  • H04L47/70 — Admission control; Resource allocation
  • H04L47/829 — Topology based

Family

  • US11563655B2 — B2 (2023)
  • US20210336818A1 — A1 (2021)
  • 1 foreign family member: KR102322454B1

Abstract

Disclosed is a computing apparatus implemented with a network hypervisor implementing software defined network (SDN)-based network virtualization. The computing apparatus include a statistics virtualization module configured to provide individual statistics to each of created virtual networks, a transmission disaggregation module configured to include a physical statistics cache that performs periodic monitoring of a plurality of physical switches and store statistics of the physical switches collected, and a physical statistics aggregation module configured to respond with statistics of the plurality of physical switches when a single monitoring request.

Also asserted by Arc Link LLC

  • US 8,200,592 — System and method for modeling multilabel classification and ranking (3 defendants)
  • US 9,549,328 — Method to optimize the communication parameters between an access point and at least one client device (3 defendants)
  • US 9,552,548 — Using classified text and deep learning algorithms to identify risk and provide early warning (3 defendants)

Named in one of these suits? A prior-art search is commissioned once and serves every defendant who shares it. The examiner's own search record is free on the tools page, and your first preliminary search is free — one claim, back within 24 hours — so you know whether there is art the Office never saw before anyone pays for more. Flat fees: $2,500$899 for the independent claims, $5,000$1,500 for every asserted claim.

This page is assembled from public records — federal court dockets and the patent's own file — and is updated as the case list changes. It states what the record shows and is not an opinion on the validity or infringement of any claim. Patent data via Google Patents; docket data via CourtListener.