公开(公告)号：US12238005B2

公开(公告)日：2025-02-25

申请号：US18525568

申请日：2023-11-30

Applicant: Cisco Technology, Inc.

Inventor： Putu H. Subagio ,  Ravikanth Nasika ,  Saikat Bhattacharya ,  Chih-Tsung Huang

IPC: H04L45/7453 ,  H04L12/46 ,  H04L47/125 ,  H04L49/00 ,  G06F16/90

Abstract: Embodiments for handling multidestination traffic in a network are described. It is determined that a destination of a packet, received at a network device, is a multihomed destination. In response to determining that the destination of the packet is a multihomed destination, a hash value is determined from a selection of header values of the packet using a hash function. The packet is forwarded to the destination using a shadow hash forwarding table based at least in part on determining, based on the hash value and a hash forwarding table, that the network device is a designated forwarder for the packet.

公开(公告)号：US11424978B2

公开(公告)日：2022-08-23

申请号：US17102062

申请日：2020-11-23

Applicant: Cisco Technology, Inc.

Inventor： Putu H. Subagio ,  Ravikanth Nasika ,  Saikat Bhattacharya ,  Sundher Narayanaswamy ,  Chih-Tsung Huang

IPC: H04L41/0668 ,  H04L12/18 ,  H04L12/44 ,  H04L43/0876 ,  H04L43/16

Abstract: A network device receives multi-destination packets from a first node and forwards at least a first of the multi-destination packets to another network device using a first multi-destination tree with respect to the network device. The network device detects that a link associated with the first multi-destination tree satisfies one or more criteria and, in response to detecting that the link satisfies the one or more criteria, selects a second multi-destination tree with respect to the network device. The network device forwards at least a second of the multi-destination packets to the other network device using the second multi-destination tree.

公开(公告)号：US10911355B2

公开(公告)日：2021-02-02

申请号：US16212569

申请日：2018-12-06

Applicant: Cisco Technology, Inc.

Inventor： Ratnananda Ganesh Dontula Venkata ,  Ravikanth Nasika ,  Saikat Bhattacharya

IPC: H04L12/741 ,  H04L12/46 ,  H04L12/947 ,  H04L29/06

Abstract: Techniques for utilizing in-band telemetry (INT) in network fabrics are provided. A packet is received at a leaf node in a first logical group of nodes. Upon determining that the first packet was received from a node outside of the first logical group of nodes, the packet is encapsulated with a first header indicating an internal virtual extensible local area network (iVXLAN) identifier associated with the packet, and a second header indicating a policy group is added to the packet. Further, upon determining that a destination of the packet is associated with a second logical group of nodes, a third header is added to the first packet, where the third header stores in-band network telemetry (INT) for the packet, and telemetry data is added to the third header. The packet is transmitted to a spine node in the first logical group of devices.

公开(公告)号：US10805216B2

公开(公告)日：2020-10-13

申请号：US16367868

申请日：2019-03-28

Applicant: Cisco Technology, Inc.

Inventor： Satyam Sinha ,  Smita Rai ,  Kit Chiu Chu ,  Ashutosh Agrawal ,  Wanli Wu ,  Ravikanth Nasika ,  Thomas J. Edsall ,  Geetha Anandakrishnan

IPC: H04L12/741 ,  H04L12/715 ,  H04L12/713 ,  H04L29/08 ,  H04L12/46 ,  H04L12/751

Abstract: Aspects of the embodiments include receiving a packet at a network element of a packet-switched network; identifying a presence of a shared service destination address in a header of the packet; identifying a shared service destination address for the packet based, at least in part, on a destination internet protocol (IP) address stored in a forward information base; and forwarding the packet to the shared service destination address.

公开(公告)号：US20170324660A1

公开(公告)日：2017-11-09

申请号：US15145647

申请日：2016-05-03

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Satyam Sinha ,  Smita Rai ,  Kit Chiu Chu ,  Ashutosh Agrawal ,  Wanli Wu ,  Ravikanth Nasika ,  Thomas J. Edsall ,  Geetha Anandakrishnan

IPC: H04L12/741 ,  H04L29/08 ,  H04L12/713

CPC classification number: H04L45/745 ,  H04L12/4641 ,  H04L45/02 ,  H04L45/04 ,  H04L45/54 ,  H04L45/586 ,  H04L45/74 ,  H04L67/10 ,  H04L67/20

Abstract: Aspects of the embodiments include receiving a packet at a network element of a packet-switched network; identifying a presence of a shared service destination address in a header of the packet; identifying a shared service destination address for the packet based, at least in part, on a destination internet protocol (IP) address stored in a forward information base; and forwarding the packet to the shared service destination address.