公开(公告)号：US11012369B2

公开(公告)日：2021-05-18

申请号：US16504086

申请日：2019-07-05

Applicant: Dell Products L.P.

Inventor： Karthi Kaliyamoorthy ,  Senthil Nathan Muthukaruppan

IPC: H04L12/911 ,  H04L12/891 ,  H04L12/931 ,  H04L12/26 ,  H04L12/709 ,  H04L12/707

Abstract: An aggregated switch path optimization system includes first and second switch devices. An aggregated third switch device is coupled to the first switch device, the second switch device, and an aggregated fourth switch device. The aggregated third switch device forwards those packets from the first switch device via one of: an ICL to the aggregated fourth switch device, and a link to the second switch device. The aggregated third switch device then monitors a usage of the ICL and the availability of the link to the second switch device. In response to the usage of the ICL exceeding a threshold usage level, or an unavailability of the link to the second switch device, the aggregated third switch device transmits a packet redirection message to the first switch device that causes it to redirect packets away from the aggregated third switch device and towards the aggregated fourth switch device.

公开(公告)号：US11411864B1

公开(公告)日：2022-08-09

申请号：US17152908

申请日：2021-01-20

Applicant: Dell Products L.P.

Inventor： Karthi Kaliyamoorthy ,  Sathish Kumar Thanneerkulam Ravichandran ,  Karthik Krishnamurthy ,  Damodharan Sreenivasagaperumal

IPC: G06F15/16 ,  H04L45/00 ,  H04L45/586 ,  H04L12/46 ,  H04L45/24 ,  H04L101/622

Abstract: An asymmetric/symmetric IRB migration system includes an aggregated networking device subsystem with a first and second networking device that are both configured to operate according to an asymmetric IRB model. A migration system coupled to the aggregated networking device subsystem retrieves first and second asymmetric IRB attributes from the first and second networking devices, uses the first asymmetric IRB attributes to generate first symmetric IRB attributes for the first networking device, and uses the second asymmetric IRB attributes to generate second symmetric IRB attributes for the second networking device. The migration system then causes data destined for end host device(s) coupled to the aggregated networking device subsystem to be transmitted only to the first networking device, configures the first networking device using the first symmetric IRB attributes, and then configures the second networking device using the second symmetric IRB attributes.

公开(公告)号：US10924391B2

公开(公告)日：2021-02-16

申请号：US16374730

申请日：2019-04-03

Applicant: DELL PRODUCTS L.P.

Inventor： Karthi Kaliyamoorthy ,  Sampath Kumar Rajamanickam ,  Rajashekar Jayaraj ,  Balamurugan Shanmugam

IPC: H04L12/703 ,  H04L12/741

Abstract: Presented herein are systems and methods that provide traffic recover when virtual router redundancy protocol (VRRP) virtual media access control (VMAC) failures occur in a link aggregation group fabric environment. In one or more embodiments, automatic traffic recovery may be accomplished using internode link control messages to synchronize a VRRP VMAC failure that has been encountered by one LAG node with a LAG peer node. If a database associated with the failed LAG node comprises no entry that indicates that the failure scenario has previously occurred in the LAG peer node, a forwarding path entry rule may be generated to route traffic via the internode link, thereby, reducing data loss through routing failures and the like.

公开(公告)号：US20200336381A1

公开(公告)日：2020-10-22

申请号：US16390836

申请日：2019-04-22

Applicant: Dell Products L.P.

Inventor： Sampath Kumar Rajamanickam ,  Karthi Kaliyamoorthy ,  Balamurugan Shanmugam

IPC: H04L12/24 ,  G06F9/455 ,  H04L12/713 ,  H04L29/06

Abstract: A first information handling system may determine a first bandwidth of a first connection between the first information handling system and a client information handling system. The first information handling system may also determine a second bandwidth of a second connection between a second information handling system and the client information handling system. The first information handling system may determine that the first bandwidth is greater than the second bandwidth. Based on the determination, the first information handling system may be designated as a VRRP master node based. Based on the designation as the VRRP master node, the first information handling system may control VRRP operation of the first and second information handling systems.

公开(公告)号：US11641374B2

公开(公告)日：2023-05-02

申请号：US16883798

申请日：2020-05-26

Applicant: DELL PRODUCTS L.P.

Inventor： Karthi Kaliyamoorthy ,  Ramesh Ganapathi

IPC: H04L9/40 ,  H04W48/06 ,  H04L61/5014

Abstract: Presented herein are systems and methods to determine whether a dynamic host configuration protocol (DHCP) server in DHCP snooping environment is a trusted device without requiring trusted port configuration. In one or more embodiments, a DHCP snooping-enable switch/router adds an indicator to a message intended for a DHCP server, thereby notifying the DHCP server that the DHCP switch/router is enabled for or capable of “detection of trusted DHCP server.” The DHCP server includes a unique trusted identifier in its reply that the DHCP switch/router uses to verify whether the DHCP server can be considered a trusted device.

公开(公告)号：US11223557B1

公开(公告)日：2022-01-11

申请号：US17002844

申请日：2020-08-26

Applicant: Dell Products L.P.

Inventor： Karthi Kaliyamoorthy

IPC: H04L12/707 ,  H04L12/775

Abstract: A multicast traffic disruption prevention system includes a first router having a first priority and operating as a designated router such that a second router transmits data traffic to the first router device for forwarding to a destination. A third router coupled to the second router also has the first priority and, in response to a link to the destination device becoming available, transmits an active designated router discovery communication to the first router that identifies the first priority of the third router. In response to receiving an active designated router confirmation communication from the first router that identifies that the first router also has the first priority and that the first router is configured to operate as the designated router, the third router operates as a non-designated router such that the second router continues to transmit data traffic to the first router for forwarding to the destination device.

公开(公告)号：US20210126855A1

公开(公告)日：2021-04-29

申请号：US16666223

申请日：2019-10-28

Applicant: Dell Products L.P.

Inventor： Karthi Kaliyamoorthy

IPC: H04L12/709 ,  H04L12/947 ,  H04L12/743

Abstract: A control packet transmission system includes a first switch device that, during a first time period, generates and transmits first control packets to a second switch device. Furthermore, a third switch device is provided that, during the first time period, generates and transmits third control packets to the second switch device, and transmits a copy of those third control packets to the first switch device. The first switch then generates respective first hash values using each of the first and third control packets, and generate a first consolidated hash value using each of the respective first hash values. During a subsequent second time period, the first switch device may determine that control data exchanged during the first and second time periods is the same and, in response, transmit the first consolidated hash value to the second switch device in place of any control packets transmitted to the second switch device.

公开(公告)号：US20210099379A1

公开(公告)日：2021-04-01

申请号：US16585321

申请日：2019-09-27

Applicant: Dell Products L.P.

Inventor： Karthi Kaliyamoorthy

IPC: H04L12/721 ,  H04L12/761 ,  H04L12/705

Abstract: A Protocol Independent Multicast (PIM) designated networking device election system includes a first networking device and a second networking device that are coupled to the first edge device. The second networking device receives a first PIM message from the first networking device and determines that the first PIM message indicates that the first networking device supports designated networking device election based on an interface performance property. The second networking device then determines whether a first interface performance property indication indicates that a first interface performance property of the first networking device or a second interface performance property of the second networking device satisfy an interface performance property condition. In response to determining that the second interface performance property satisfies the interface performance property condition, the second networking device forwards first data traffic received at the second networking device toward the first edge device.

公开(公告)号：US20210006504A1

公开(公告)日：2021-01-07

申请号：US16504086

申请日：2019-07-05

Applicant: Dell Products L.P.

Inventor： Karthi Kaliyamoorthy ,  Senthil Nathan Muthukaruppan

IPC: H04L12/911 ,  H04L12/891 ,  H04L12/26 ,  H04L12/709 ,  H04L12/707 ,  H04L12/931

Abstract: An aggregated switch path optimization system includes first and second switch devices. An aggregated third switch device is coupled to the first switch device, the second switch device, and an aggregated fourth switch device. The aggregated third switch device forwards those packets from the first switch device via one of: an ICL to the aggregated fourth switch device, and a link to the second switch device. The aggregated third switch device then monitors a usage of the ICL and the availability of the link to the second switch device. In response to the usage of the ICL exceeding a threshold usage level, or an unavailability of the link to the second switch device, the aggregated third switch device transmits a packet redirection message to the first switch device that causes it to redirect packets away from the aggregated third switch device and towards the aggregated fourth switch device.

公开(公告)号：US10666554B2

公开(公告)日：2020-05-26

申请号：US15951009

申请日：2018-04-11

Applicant: Dell Products L.P.

Inventor： Senthil Nathan Muthukaruppan ,  Karthi Kaliyamoorthy

IPC: H04L12/703 ,  H04L12/753 ,  H04L12/709 ,  H04L12/939 ,  H04L29/14 ,  H04L12/46

Abstract: An Inter-Chassis Link (ICL) failure management system includes a first switch device and a second switch device coupled together by an Inter-Chassis Link (ICL) that is included in a control network and that is configured to provide a primary control channel for transmitting control information between the first switch device and the second switch device. A third switch device is coupled to each of the first switch device and the second switch device by a first aggregated link. When the first switch device determines that the ICL is unavailable, it causes a first port and a second port that provide the first aggregated link to be added to the control network to provide a primary backup control channel. The first switch device may then send control information to the second switch device through the primary backup control channel via the first port and the second port.