Cisco Technology, Inc.

Juniper Networks, Inc.

Raunak Banthia

Ramakrishnan Chokkanathapuram Sundaram

Rishabh Parekh

Kesavan Thiruvenkatasamy

Aleksandar Luka Ratkovic

Diheng Qu

Chi Fung Michael Chan

Atul Bhaskarrao Patil

Rajeev Menon Kadekuzhi

Aleksandr Gordeev

Roman Bogorodskiy

Aleksei Goditskii

A method for managing a plurality of network devices of a network includes determining, by one or more processors, a causality map for the plurality of network devices according to an intent. The method further includes receiving, by the one or more processors, an indication of a network service impact and determining, by the one or more processors, a relevant portion of the causality map based on the network service impact. The method further includes determining, by the one or more processors, one or more candidate root cause faults based on the relevant portion of the causality map and outputting, by the one or more processors, an indication of the one or more candidate root cause faults.

Network graph model and root cause analysis for a network management system

This disclosure describes techniques for improving convergence of Protocol Independent Multicast assert state information in multicast groups. A method includes forwarding, by a router, a PIM join message originating from a destination host and stores distribution tree information based on the join message. The method further includes participating, by the router, in a Protocol Independent Multicast ('PIM') assert election among a plurality of routers and storing, by the router, PIM assert state information based on an outcome of the PIM assert election. The method further includes acquiring, by the router, routing information base ('RIB') convergence. The method further includes triggering by the router, or causing, by the router, another router to trigger, a PIM assert among the plurality of routers. The method further includes re-converging, by the router, with PIM assert states among the plurality of routers and storing, by the router, converged PIM assert state information.

Re-convergence of protocol independent multicast assert states

Techniques for improving convergence of Protocol Independent Multicast assert state information in multicast groups include forwarding, by a router, a PIM join message originating from a destination host and stores distribution tree information based on the join message. The method further includes participating, by the router, in a Protocol Independent Multicast ('PIM') assert election among a plurality of routers and storing, by the router, PIM assert state information based on an outcome of the PIM assert election. The method further includes acquiring, by the router, routing information base ('RIB') convergence. The method further includes triggering by the router, or causing, by the router, another router to trigger, a PIM assert among the plurality of routers. The method further includes re-converging, by the router, with PIM assert states among the plurality of routers and storing, by the router, converged PIM assert state information.

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Milpitas, CA, United States of America

Raunak Banthia