公开(公告)号：US20240250901A1

公开(公告)日：2024-07-25

申请号：US18157668

申请日：2023-01-20

Applicant: DELL PRODUCTS L.P.

Inventor： Senthil Kumar GANESAN ,  Venkatesan MAHALINGAM ,  Vinoth Kumar ARUMUGAM

IPC: H04L45/00 ,  H04L45/24 ,  H04L45/28

CPC classification number: H04L45/32 ,  H04L45/245 ,  H04L45/28

Abstract: Current data center deployments, particularly layer 2 (L2) deployments that use multi-chassis link aggregation group (MC-LAG) implementations, have limitations. Such deployments use a link, known as an inter-node link (INL)/inter-chassis link (ICL), to connect peer information handling system nodes. Because the peer nodes are coupled together via one or more INL connections, there are fewer ports available for each peer node to connect to end nodes. This configuration creates limitations to bandwidth and scaling, and also increase costs. Embodiments herein allow for the elimination of INLs by moving forwarding decisions to the spine node level. In one or more embodiments, a spine node determines ports to reach dual-homed, single-homed, and orphaned node that are connected to leaf node(s) based on information learned from the leaf nodes. For a leaf node, a sub-LAG (link aggregation group) may be created to reach single-homed/orphaned nodes connected to the leaf node.

公开(公告)号：US20240031272A1

公开(公告)日：2024-01-25

申请号：US17868530

申请日：2022-07-19

Applicant: DELL PRODUCTS L.P.

Inventor： Senthil Kumar GANESAN ,  Udhaya Chandran SHANMUGAM ,  Kannan KARUPPIAH

IPC: H04L45/02 ,  H04L45/12 ,  H04L45/24 ,  H04L45/16

CPC classification number: H04L45/02 ,  H04L45/127 ,  H04L45/245 ,  H04L45/16

Abstract: Systems and methods communicate to a primary peer node a message that indicates that a secondary peer node does not comprise an orphan port or a link that is operationally down. In various embodiments, this causes the primary node to not send broadcast, unknown unicast, or multicast (BUM) traffic to the secondary peer node such as to prevent that traffic from being unnecessarily dropped at the peer node, thus, conserving computing resources, such as an internode link bandwidth, and significantly improving overall network performance.

公开(公告)号：US20240031237A1

公开(公告)日：2024-01-25

申请号：US17868717

申请日：2022-07-19

Applicant: DELL PRODUCTS L.P.

Inventor： Kannan KARUPPIAH ,  Senthil Kumar GANESAN ,  Udhaya Chandran SHANMUGAM

IPC: H04L41/12 ,  H04L41/0816 ,  H04L12/44

CPC classification number: H04L41/12 ,  H04L41/0816 ,  H04L12/44

Abstract: When an event occurs in the network that affects an information handling system in the network, a topology change notice (TCN) may be propagated so that the network topology can be regenerated. However, currently, there is no mechanism to readily identify the source information handling system of the TCN. To address issues, in one or more embodiments, when an information handling system (such as a network switch) initiates a TCN, it sends a specialized message to keep track of the source of the TCN. In one or more embodiments, information handling systems that receive the specialized message may record information about the source and forward it to other information handling system in the network.

公开(公告)号：US20160254953A1

公开(公告)日：2016-09-01

申请号：US15140326

申请日：2016-04-27

Applicant: Dell Products L.P

Inventor： Senthil Kumar GANESAN ,  Raja JAYAKUMAR ,  Ashok DAPARTHI ,  Aravind Babu MAHENDRABABU ,  Raja SUBBIAH

IPC: H04L12/24 ,  H04L29/08 ,  H04L12/815

CPC classification number: H04L41/0813 ,  H04L45/02 ,  H04L47/22 ,  H04L49/00 ,  H04L69/324 ,  Y02D30/30

Abstract: A system and method of automated Data Center Bridging (DCB) configuration of an access switch includes a control unit, a memory, and a port configured to couple the access switch to a peer device. The control unit is configured to operate the port according to a state machine including a DCB disabled state, a DCB downstream state, and a DCB upstream state. When the port is in the DCB disabled state, the control unit exchanges network traffic on the port without any DCB extensions. When the port is in the DCB upstream state, the control unit exchanges network traffic on the port using DCB extensions based on the DCB configuration and receives the DCB configuration from the peer device. When the port is in the DCB downstream state, the control unit exchanges network traffic on the port using the DCB extensions and transmits the DCB configuration to the peer device.