公开(公告)号：US11368324B2

公开(公告)日：2022-06-21

申请号：US16778669

申请日：2020-01-31

Applicant: Cisco Technology, Inc.

Inventor： Ramakrishnan Chokkanathapuram Sundaram ,  Kesavan Thiruvenkatasamy ,  Rishabh Parekh ,  Raunak Banthia

IPC: H04L12/18 ,  H04L45/02 ,  H04L49/201

Abstract: 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.

公开(公告)号：US20210392069A1

公开(公告)日：2021-12-16

申请号：US17343697

申请日：2021-06-09

Applicant: Cisco Technology, Inc.

Inventor： Samir Thoria ,  Neeraj Malhotra ,  Lukas Krattiger ,  Ali Sajassi ,  Rajesh Sharma ,  Kesavan Thiruvenkatasamy ,  Aparna Pattekar

IPC: H04L12/715 ,  H04L12/46

Abstract: This disclosure describes techniques for enabling interoperability between asymmetric and symmetric Integrated Routing and Bridging (IRB) modes. An interfacing component may be configured to receive a first route advertisement from a first edge node in a Layer-2 (L2) fabric. The first route advertisement may correspond to an asymmetric format route, for instance. The interfacing component may be further configured to receive a second route advertisement from a second edge node in a L2/Layer-3 (L3) fabric. The second edge node may be configured for symmetric integrated routing and bridging (IRB). The interfacing component may be configured to re-originate the first route and the second route such that the interfacing component is included as a hop in the resultant routes between the L2 fabric and the L2/L3 fabric.

公开(公告)号：US11924083B2

公开(公告)日：2024-03-05

申请号：US17343697

申请日：2021-06-09

Applicant: Cisco Technology, Inc.

Inventor： Samir Thoria ,  Neeraj Malhotra ,  Lukas Krattiger ,  Ali Sajassi ,  Rajesh Sharma ,  Kesavan Thiruvenkatasamy ,  Aparna Pattekar

IPC: H04L45/02 ,  H04L12/46

CPC classification number: H04L45/04 ,  H04L12/46

Abstract: This disclosure describes techniques for enabling interoperability between asymmetric and symmetric Integrated Routing and Bridging (IRB) modes. An interfacing component may be configured to receive a first route advertisement from a first edge node in a Layer-2 (L2) fabric. The first route advertisement may correspond to an asymmetric format route, for instance. The interfacing component may be further configured to receive a second route advertisement from a second edge node in a L2/Layer-3 (L3) fabric. The second edge node may be configured for symmetric integrated routing and bridging (IRB). The interfacing component may be configured to re-originate the first route and the second route such that the interfacing component is included as a hop in the resultant routes between the L2 fabric and the L2/L3 fabric.

公开(公告)号：US20240137305A1

公开(公告)日：2024-04-25

申请号：US18401208

申请日：2023-12-29

Applicant: Cisco Technology, Inc.

Inventor： Samir D Thoria ,  Ali Sajassi ,  Rajesh Sharma ,  Kesavan Thiruvenkatasamy ,  Aparna Pattekar ,  Lukas Krattiger ,  Neeraj Malhotra

IPC: H04L45/02 ,  H04L12/46

CPC classification number: H04L45/04 ,  H04L12/46

Abstract: This disclosure describes techniques for enabling interoperability between asymmetric and symmetric Integrated Routing and Bridging (IRB) modes. An interfacing component may be configured to receive a first route advertisement from a first edge node in a Layer-2 (L2) fabric. The first route advertisement may correspond to an asymmetric format route, for instance. The interfacing component may be further configured to receive a second route advertisement from a second edge node in a L2/Layer-3 (L3) fabric. The second edge node may be configured for symmetric integrated routing and bridging (IRB). The interfacing component may be configured to re-originate the first route and the second route such that the interfacing component is included as a hop in the resultant routes between the L2 fabric and the L2/L3 fabric.

公开(公告)号：US11843472B2

公开(公告)日：2023-12-12

申请号：US17844589

申请日：2022-06-20

Applicant: Cisco Technology, Inc.

Inventor： Ramakrishnan Chokkanathapuram Sundaram ,  Kesavan Thiruvenkatasamy ,  Rishabh Parekh ,  Raunak Banthia

IPC: H04L12/18 ,  H04L45/02 ,  H04L49/201

CPC classification number: H04L12/185 ,  H04L45/02 ,  H04L49/201

Abstract: 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.

公开(公告)号：US20220321367A1

公开(公告)日：2022-10-06

申请号：US17844589

申请日：2022-06-20

Applicant: Cisco Technology, Inc.

Inventor： Ramakrishnan Chokkanathapuram Sundaram ,  Kesavan Thiruvenkatasamy ,  Rishabh Parekh ,  Raunak Banthia

IPC: H04L12/18 ,  H04L45/02 ,  H04L49/201

Abstract: 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.

公开(公告)号：US20210243044A1

公开(公告)日：2021-08-05

申请号：US16778669

申请日：2020-01-31

Applicant: Cisco Technology, Inc.

Inventor： Ramakrishnan Chokkanathapuram Sundaram ,  Kesavan Thiruvenkatasamy ,  Rishabh Parekh ,  Raunak Banthia

IPC: H04L12/18 ,  H04L12/931 ,  H04L12/751

Abstract: 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.