公开(公告)号：US11019025B2

公开(公告)日：2021-05-25

申请号：US16454493

申请日：2019-06-27

Applicant: Cisco Technology, Inc.

Inventor： Gautam Venkataramanan ,  Umamaheswararao Karyampudi ,  Sundher Narayanaswamy

IPC: G06F15/16 ,  H04L29/12 ,  H04L29/08 ,  H04L29/06

Abstract: A network device resolves a destination address of an endpoint in an endpoint isolation environment. The network device receives a request for a destination address associated with a destination endpoint. The request originates from an isolated source endpoint. The network device determines whether the destination address is stored on the network device in association with the destination endpoint. Responsive to a determination that the destination address is not stored in association with the destination endpoint, the network device generates a proxy request for the destination address, and sends the proxy request to at least one endpoint attached to the network device. The network device receives a proxy response from the destination endpoint that includes the destination address. The network device stores the destination address in association with the destination endpoint.

公开(公告)号：US20190319916A1

公开(公告)日：2019-10-17

申请号：US16454493

申请日：2019-06-27

Applicant: Cisco Technology, Inc.

Inventor： Gautam Venkataramanan ,  Umamaheswararao Karyampudi ,  Sundher Narayanaswamy

IPC: H04L29/12 ,  H04L29/08

Abstract: A network device resolves a destination address of an endpoint in an endpoint isolation environment. The network device receives a request for a destination address associated with a destination endpoint. The request originates from an isolated source endpoint. The network device determines whether the destination address is stored on the network device in association with the destination endpoint. Responsive to a determination that the destination address is not stored in association with the destination endpoint, the network device generates a proxy request for the destination address, and sends the proxy request to at least one endpoint attached to the network device. The network device receives a proxy response from the destination endpoint that includes the destination address. The network device stores the destination address in association with the destination endpoint.

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：US11750440B2

公开(公告)日：2023-09-05

申请号：US17815250

申请日：2022-07-27

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

CPC classification number: 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：US10382390B1

公开(公告)日：2019-08-13

申请号：US15693628

申请日：2017-09-01

Applicant: Cisco Technology, Inc.

Inventor： Gautam Venkataramanan ,  Umamaheswararao Karyampudi ,  Sundher Narayanaswamy

IPC: G06F15/16 ,  H04L29/12 ,  H04L29/08

Abstract: A network device resolves a destination address of an endpoint in an endpoint isolation environment. The network device receives a request for a destination address associated with a destination endpoint. The request originates from an isolated source endpoint. The network device determines whether the destination address is stored on the network device in association with the destination endpoint. Responsive to a determination that the destination address is not stored in association with the destination endpoint, the network device generates a proxy request for the destination address, and sends the proxy request to at least one endpoint attached to the network device. The network device receives a proxy response from the destination endpoint that includes the destination address. The network device stores the destination address in association with the destination endpoint.

公开(公告)号：US10965589B2

公开(公告)日：2021-03-30

申请号：US16289540

申请日：2019-02-28

Applicant: Cisco Technology, Inc.

Inventor： Hrishikesh Narasimhan ,  Sundher Narayanaswamy ,  Biju M. Mammen ,  Balaji Muthuvarathan ,  Arnav Goel

IPC: H04L12/28 ,  H04L12/753 ,  H04L12/761 ,  H04L12/24 ,  H04L12/743 ,  H04L12/751

Abstract: One technique includes receiving, in a first network, a multi-destination packet from a second network, and determining, based on the multi-destination packet, a first multi-destination tree in the first network for forwarding the multi-destination packet. In response to determining that the first multi-destination tree is not rooted on the network device, a second multi-destination tree in the first network is determined, and the multi-destination packet is transmitted using the second multi-destination tree. Another technique includes, upon detecting a first network device joining a network, sending a first indication to a second network device that the first network device is in a state for an amount of time. After the amount of time has elapsed, a second indication that the first network device has exited the state is sent to the second network device. A topology of the network is updated after the first network device has exited the state.

公开(公告)号：US11936559B2

公开(公告)日：2024-03-19

申请号：US17301152

申请日：2021-03-26

Applicant: Cisco Technology, Inc.

Inventor： Hrishikesh Narasimhan ,  Sundher Narayanaswamy ,  Biju M. Mammen ,  Balaji Muthuvarathan ,  Arnav Goel

IPC: H04L45/48 ,  H04L41/12 ,  H04L45/02 ,  H04L45/16 ,  H04L45/7453

CPC classification number: H04L45/48 ,  H04L41/12 ,  H04L45/02 ,  H04L45/16 ,  H04L45/7453

Abstract: One technique includes receiving, in a first network, a multi-destination packet from a second network, and determining, based on the multi-destination packet, a first multi-destination tree in the first network for forwarding the multi-destination packet. In response to determining that the first multi-destination tree is not rooted on the network device, a second multi-destination tree in the first network is determined, and the multi-destination packet is transmitted using the second multi-destination tree. Another technique includes, upon detecting a first network device joining a network, sending a first indication to a second network device that the first network device is in a state for an amount of time. After the amount of time has elapsed, a second indication that the first network device has exited the state is sent to the second network device. A topology of the network is updated after the first network device has exited the state.