公开(公告)号：US20210399908A1

公开(公告)日：2021-12-23

申请号：US17465822

申请日：2021-09-02

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Raghava K. Sivaramu ,  Srinivasan Ramabadran ,  Mehak Mahajan ,  Nataraj Batchu

IPC: H04L12/18 ,  H04L12/761

Abstract: In accordance with one example embodiment, a system configured for programming a network layer multicast address entry in a routing table of an ingress line card module is disclosed. The network layer multicast address entry includes a network layer address associated with at least one egress line card. The system is further configured for programming a data link layer multicast routing address entry in a routing table of a fabric card module in which the data link layer multicast routing address entry corresponds to the network layer multicast address entry.

公开(公告)号：US12107695B2

公开(公告)日：2024-10-01

申请号：US17465822

申请日：2021-09-02

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Raghava K. Sivaramu ,  Srinivasan Ramabadran ,  Mehak Mahajan ,  Nataraj Batchu

IPC: H04L12/18 ,  H04L45/16 ,  H04L45/745 ,  H04L49/201

CPC classification number: H04L12/18 ,  H04L45/16 ,  H04L45/745 ,  H04L49/201

Abstract: In accordance with one example embodiment, a system configured for programming a network layer multicast address entry in a routing table of an ingress line card module is disclosed. The network layer multicast address entry includes a network layer address associated with at least one egress line card. The system is further configured for programming a data link layer multicast routing address entry in a routing table of a fabric card module in which the data link layer multicast routing address entry corresponds to the network layer multicast address entry.

公开(公告)号：US20190104066A1

公开(公告)日：2019-04-04

申请号：US15724092

申请日：2017-10-03

Applicant: Cisco Technology, Inc.

Inventor： Venkata Naga Ramesh Ponnapalli ,  Ayan Banerjee ,  Raghava K. Sivaramu ,  Nataraj Bacthu

IPC: H04L12/745 ,  H04L12/721 ,  H04L12/743

Abstract: In one embodiment, longest prefix matching (LPM) operations are performed on a value in multiple interspersed prefix length search spaces to determine an overall longest prefix matching result in a packet switching system. A first LPM lookup unit performs a first LPM operation on the particular lookup value in a first search space finding a first longest matching prefix, and a second LPM lookup unit performs a second LPM operation on the particular lookup value in a second search space finding a second longest matching prefix. The longer of the first and second longest matching prefixes determines the overall LPM. In one embodiment, the first search space and the second search space include non-default route prefixes with interspersed prefix lengths matching a same value, such as, but not limited to the particular lookup value (e.g., a destination address of a packet).

公开(公告)号：US10250399B1

公开(公告)日：2019-04-02

申请号：US14734987

申请日：2015-06-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Ayan Banerjee ,  Raghava K. Sivaramu ,  Srinivasan Ramabadran ,  Mehak Mahajan ,  Nataraj Bacthu

IPC: H04L12/18 ,  H04L12/931 ,  H04L12/741

Abstract: In accordance with one example embodiment, a system configured for programming a network layer multicast address entry in a routing table of an ingress line card module is disclosed. The network layer multicast address entry includes a network layer address associated with at least one egress line card. The system is further configured for programming a data link layer multicast routing address entry in a routing table of a fabric card module in which the data link layer multicast routing address entry corresponds to the network layer multicast address entry.

公开(公告)号：US11133947B2

公开(公告)日：2021-09-28

申请号：US16372148

申请日：2019-04-01

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Raghava K. Sivaramu ,  Srinivasan Ramabadran ,  Mehak Mahajan ,  Nataraj Batchu

IPC: H04L12/18 ,  H04L12/761 ,  H04L12/931 ,  H04L12/741

Abstract: In accordance with one example embodiment, a system configured for programming a network layer multicast address entry in a routing table of an ingress line card module is disclosed. The network layer multicast address entry includes a network layer address associated with at least one egress line card. The system is further configured for programming a data link layer multicast routing address entry in a routing table of a fabric card module in which the data link layer multicast routing address entry corresponds to the network layer multicast address entry.

公开(公告)号：US20190229938A1

公开(公告)日：2019-07-25

申请号：US16372148

申请日：2019-04-01

Applicant: Cisco Technology, Inc.

Inventor： Ayan Banerjee ,  Raghava K. Sivaramu ,  Srinivasan Ramabadran ,  Mehak Mahajan ,  Nataraj Batchu

IPC: H04L12/18 ,  H04L12/931 ,  H04L12/741

Abstract: In accordance with one example embodiment, a system configured for programming a network layer multicast address entry in a routing table of an ingress line card module is disclosed. The network layer multicast address entry includes a network layer address associated with at least one egress line card. The system is further configured for programming a data link layer multicast routing address entry in a routing table of a fabric card module in which the data link layer multicast routing address entry corresponds to the network layer multicast address entry.