公开(公告)号：US20240214292A1

公开(公告)日：2024-06-27

申请号：US18146852

申请日：2022-12-27

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Anuj Budhiraja ,  Sridhar Santhanam ,  Vinish Ramachandran

IPC: H04L43/10 ,  H04L45/50

CPC classification number: H04L43/10 ,  H04L45/50

Abstract: Disclosed are systems, apparatuses, methods, and computer-readable media for tracing multicast paths in hybrid networks. A method for tracing multicast paths in hybrid networks includes intercepting, by an edge device, a first multicast trace request transmitted by a first network device that a source device is connected to for tracing a route between the source device to a receiver device, wherein the first network device receives a message from a multicast tracing client to trace a multicast path from the receiver device to the source device; generating a second multicast trace request based on the format for the core network using information from the first multicast trace request; and transmitting the second multicast trace request from an edge network device to the receiver device using the core network, the second multicast trace request including network information related to network performance between the first network device and the edge network device

公开(公告)号：US20240333547A1

公开(公告)日：2024-10-03

申请号：US18193282

申请日：2023-03-30

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Vinish Ramachandran ,  Sridhar Santhanam ,  Peter Psenak

IPC: H04L12/18 ,  H04L45/00 ,  H04L45/17

CPC classification number: H04L12/185 ,  H04L45/17 ,  H04L45/32

Abstract: A method comprises, at routers of a network configured to provide connectivity from a multicast receiver to edge routers multihomed to a multicast source of multicast traffic on an Ethernet segment: creating a limited flood domain for the Ethernet segment, wherein the limited flood domain includes boundary routers positioned to make a final decision as to which of the edge routers to send a multicast join for the multicast traffic; by the boundary routers, upon receiving a source announcement that announces the multicast source is active on a particular edge router of the Ethernet segment, locally storing information, provided by the source announcement, which includes a multicast address for the multicast source and identifies a link to the particular edge router; and by boundary router of the boundary routers, upon receiving the multicast join, sending the multicast join to the particular edge router using the multicast address and the link.

公开(公告)号：US20250133010A1

公开(公告)日：2025-04-24

申请号：US18492890

申请日：2023-10-24

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Nitin Kumar ,  Luc De Ghein ,  Anuj Budhiraja ,  Vinish Ramachandran

IPC: H04L45/00 ,  H04L45/02

Abstract: In some aspects, a method for establishing a multicast-only Fast Re-Route (FRR) (MoFRR) path between a source node and a receiving node in a network, the method includes receiving, by a merged receiving node, a plurality of data packets in a data flow comprising an FRR indicator, wherein the merged receiving node is configured to identify an FRR path for data transmission to the source node, extracting, by the merged receiving node, from the FRR indicator, an identification of the source node as a destination of the data transmission, and a first identifier identifying a first data packet as part of a first flow of a MoFRR, and a second identifier identifying a second data packet as part of a second flow of a MoFRR, transmitting, by the receiving node, the first data packet along a primary data path and the second data packet along a secondary data path.