公开(公告)号：US11949597B2

公开(公告)日：2024-04-02

申请号：US17543278

申请日：2021-12-06

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Anuj Budhiraja ,  Nitin Kumar ,  Sridhar Santhanam

IPC: H04L47/10 ,  H04L12/18 ,  H04L43/0829

CPC classification number: H04L47/15 ,  H04L12/18 ,  H04L43/0829

Abstract: In an example method, an instruction to begin monitoring incoming traffic of a multicast data flow is received by a router. The instruction is received from a downstream router. The example method further includes monitoring incoming traffic of the multicast data flow. At least partly in response to determining that an expected amount of the incoming traffic of the multicast data flow is being received at the router, reporting to a network administrator device, a location of the router in the multicast data flow. Further, at least partly in response to determining that an expected amount of the incoming traffic of the multicast a data flow is not being received, sending, by the router and to an upstream router, an instruction to begin monitoring incoming traffic of the multicast data flow.

公开(公告)号：US20230179527A1

公开(公告)日：2023-06-08

申请号：US17543278

申请日：2021-12-06

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Anuj Budhiraja ,  Nitin Kumar ,  Sridhar Santhanam

IPC: H04L47/10 ,  H04L12/18 ,  H04L43/0829

CPC classification number: H04L47/15 ,  H04L12/18 ,  H04L43/0829

Abstract: In an example method, an instruction to begin monitoring incoming traffic of a multicast data flow is received by a router. The instruction is received from a downstream router. The example method further includes monitoring incoming traffic of the multicast data flow. At least partly in response to determining that an expected amount of the incoming traffic of the multicast data flow is being received at the router, reporting to a network administrator device, a location of the router in the multicast data flow. Further, at least partly in response to determining that an expected amount of the incoming traffic of the multicast a data flow is not being received, sending, by the router and to an upstream router, an instruction to begin monitoring incoming traffic of the multicast data flow.

公开(公告)号：US20240214315A1

公开(公告)日：2024-06-27

申请号：US18594173

申请日：2024-03-04

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Anuj Budhiraja ,  Nitin Kumar ,  Sridhar Santhanam

IPC: H04L47/10 ,  H04L12/18 ,  H04L43/0829

CPC classification number: H04L47/15 ,  H04L12/18 ,  H04L43/0829

Abstract: In an example method, a network administrative device receives an indication that a multicast data flow is experiencing traffic loss. The administrative device transmits instructions to a last hop to begin monitoring incoming traffic, if the last hop is receiving expected traffic, the last hop sends it location to the administrative device. If the last hop is not receiving expected traffic, it sends instruction to a next upstream device to start monitoring incoming traffic. Based on receiving a message indicating the location of the last hop, the administrative device determines a network fault is occurring at a location of the last hop. Based on receiving a message indicating a location of an upstream device, the administrative device determines a network fault is occurring at the location of the upstream device.

公开(公告)号：US20230421491A1

公开(公告)日：2023-12-28

申请号：US17808652

申请日：2022-06-24

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Anuj Budhiraja ,  Sridhar Santhanam ,  Sunil Krishnan K

IPC: H04L45/48 ,  H04L45/02 ,  H04L45/00 ,  H04L45/12

CPC classification number: H04L45/48 ,  H04L45/02 ,  H04L45/20 ,  H04L45/127

Abstract: In one embodiment, a method by a router in a multicast network includes receiving a multicast trace query comprising a data packet, editing the multicast trace query to include data corresponding to the data packet, transmitting the edited multicast trace query to a subsequent router, transmitting a first message indicating the edited multicast trace query was transmitted to the subsequent router, and starting a timer for a determined period of time.

公开(公告)号：US20220116308A1

公开(公告)日：2022-04-14

申请号：US17361510

申请日：2021-06-29

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Ijsbrand Wijnands ,  Anuj Budhiraja ,  Ali Sajassi ,  Stephane Litkowski ,  Satya Ranjan Mohanty

IPC: H04L12/761 ,  H04L12/18 ,  H04L12/751 ,  H04L12/713 ,  H04L12/46

Abstract: A method comprises, at a first router configured to perform Bit Index Explicit Replication (BIER) for forwarding of multicast packets in a network, storing configuration information that indicates that the first router belongs to multiple subdomains of a BIER domain, and is able to forward the multicast packets for a virtual private network on the multiple subdomains. The method further comprises, during an auto-discovery procedure, generating an auto-discovery message to include an auto-discovery route and route attributes that indicate the multiple subdomains, and sending the auto-discovery message to a second router of the virtual private network the network.