公开(公告)号：US20220239554A1

公开(公告)日：2022-07-28

申请号：US17248547

申请日：2021-01-28

Applicant: Cisco Technology, Inc.

Inventor： Mankamana P. MISHRA ,  Karthik Babu HARICHANDRA BABU ,  Nitin KUMAR ,  Manoj K. PANDEY

IPC: H04L12/24 ,  H04L12/26

Abstract: Techniques for connectivity issue remediation are provided. A first link trace message is automatically transmitted from a source end point to a destination end point. A first topology graph is generated for a network based on the first link trace message. Presence of a loop is detected in the network. A second link trace message is then transmitted from the source end point to the destination end point, and a second topology graph is automatically generated for the network based on the second link trace message. An edge in the network that caused the loop is identified based on comparing the first and second topology graphs.

公开(公告)号：US20240305562A1

公开(公告)日：2024-09-12

申请号：US18117841

申请日：2023-03-06

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Rajiv ASATI ,  Nitin KUMAR ,  Krishnaswamy MUDDENAHALLY ANANTHAMURTHY ,  Frank BROCKNERS

IPC: H04L45/48 ,  H04L43/12 ,  H04L45/30

CPC classification number: H04L45/48 ,  H04L43/12 ,  H04L45/30

Abstract: According to one or more embodiments of the disclosure, an example process herein may comprise: causing, responsive to a triggering event, establishment of a service tree that follows a same path as a multicast parent tree through a data communication network to one or more intended recipient devices; causing a duplication of a particular flow from the multicast parent tree to the service tree; causing a determination of a performance characteristic of the particular flow through the service tree; and causing an association of the performance characteristic with the multicast parent tree.

公开(公告)号：US20220393938A1

公开(公告)日：2022-12-08

申请号：US17820050

申请日：2022-08-16

Applicant: Cisco Technology, Inc.

Inventor： Mankamana P. MISHRA ,  Karthik Babu HARICHANDRA BABU ,  Nitin KUMAR ,  Manoj K. PANDEY

IPC: H04L41/0677 ,  H04L41/0659 ,  H04L43/10 ,  H04L43/0811 ,  H04L41/12

Abstract: Techniques for connectivity issue remediation are provided. A first link trace message is transmitted from a source end point to a destination end point. A first topology graph for a network is generated based on the first link trace message, and a presence of a connectivity issue in the network is detected. A second link trace message is transmitted from the source end point to the destination end point. A second topology graph for the network is automatically generated based on second link trace message, and a component in the network that caused the connectivity issue is identified based on comparing the first and second topology graphs.

公开(公告)号：US20240214295A1

公开(公告)日：2024-06-27

申请号：US18088239

申请日：2022-12-23

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Lukas KRATTIGER ,  Nitin KUMAR

IPC: H04L45/02 ,  H04L45/00 ,  H04L45/16

CPC classification number: H04L45/02 ,  H04L45/16 ,  H04L45/26

Abstract: In one embodiment, a device may receive a multicast path trace request for a multicast tree, wherein the device is a mid-node in the multicast tree. The device may perform, based on the device being a mid-node in the multicast tree, an upstream trace of network topology of the multicast tree from the device to a head-node of the multicast tree and a downstream trace of network topology of the multicast tree from the device to at least one tail-node. The device may generate an end-to-end visible topology of the multicast tree based on the upstream trace and the downstream trace. The device may provide the end-to-end visible topology of the multicast tree to an observability manager.