公开(公告)号：US11190394B2

公开(公告)日：2021-11-30

申请号：US16599010

申请日：2019-10-10

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Ali Sajassi ,  Krishnaswamy Muddenahally Ananthamurthy ,  Samir Thoria ,  Suma Kachinthaya ,  Swadesh Agrawal

IPC: H04L12/24 ,  H04L12/947 ,  H04L29/12 ,  H04L12/18

Abstract: In one embodiment, a first computer networking device executes an election algorithm to determine whether at least the first computer networking device or a second computer networking device is responsible for forwarding, to at least one receiving device, communications addressed to a specified group of computing devices. The first computer networking device may further store first data indicating that the first computer networking device is responsible for forwarding the communications. However, in response to the first computer networking device determining that it is no longer receiving the communications, it may store second data indicating that the first computer networking device is no longer responsible for forwarding the communications and may send, to the second computer networking device, third data indicating that the first computer networking device is not receiving the communications.

公开(公告)号：US11811546B2

公开(公告)日：2023-11-07

申请号：US17472774

申请日：2021-09-13

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Ali Sajassi ,  Ijsbrand Wijnands ,  Krishnaswamy Muddenahally Ananthamurthy ,  Jayashree Subramanian

IPC: H04L12/18 ,  H04L12/46 ,  H04L9/40 ,  H04L45/74 ,  H04L47/724 ,  H04L45/16

CPC classification number: H04L12/185 ,  H04L12/4641 ,  H04L45/16 ,  H04L45/74 ,  H04L47/724 ,  H04L63/0272

Abstract: A networking environment includes a first node and a second node configured as Ethernet Virtual Private Networking (EVPN) peers on an EVPN subnet that is coupled to a Layer 3 VPN over a core network. The first node receives a first multicast join request from a third node in the core network, the first multicast join request including a source address and multicast group address of a source of a multicast stream. The first node determines that the source address and the multicast group address for the source are behind the EVPN subnet at the second node. The first node sends to the second node, a control plane join request message that includes a receiver identifier that identifies the third node as a receiver of the multicast stream, the receiver identifier enabling the second node to forward the multicast stream directly into the core network to the third node.

公开(公告)号：US11159337B1

公开(公告)日：2021-10-26

申请号：US16858978

申请日：2020-04-27

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Ali Sajassi ,  Ijsbrand Wijnands ,  Krishnaswamy Muddenahally Ananthamurthy ,  Jayashree Subramanian

IPC: H04L12/18 ,  H04L12/46 ,  H04L29/06 ,  H04L12/741 ,  H04L12/913 ,  H04L12/761

Abstract: A networking environment includes a first node and a second node configured as Ethernet Virtual Private Networking (EVPN) peers on an EVPN subnet that is coupled to a Layer 3 VPN over a core network. The first node receives a first multicast join request from a third node in the core network, the first multicast join request including a source address and multicast group address of a source of a multicast stream. The first node determines that the source address and the multicast group address for the source are behind the EVPN subnet at the second node. The first node sends to the second node, a control plane join request message that includes a receiver identifier that identifies the third node as a receiver of the multicast stream, the receiver identifier enabling the second node to forward the multicast stream directly into the core network to the third node.

公开(公告)号：US11979256B2

公开(公告)日：2024-05-07

申请号：US17813959

申请日：2022-07-21

Applicant: Cisco Technology, Inc.

Inventor： Neeraj Malhotra ,  Balaji Pitta Venkatachalapathy ,  Krishnaswamy Muddenahally Ananthamurthy ,  Ali Sajassi ,  Dhananjaya Kasargod Rao

IPC: H04L12/46 ,  H04L45/00 ,  H04L45/02 ,  H04L45/50 ,  H04L45/741 ,  H04L101/622

CPC classification number: H04L12/4641 ,  H04L45/02 ,  H04L45/50 ,  H04L45/66 ,  H04L45/741 ,  H04L2101/622

Abstract: In one embodiment, a method includes receiving, by a route reflector, a subscription request from a first provider edge node in a network and generating a subscription policy for the first provider edge node. The method also includes receiving a first Ethernet Virtual Private Network (EVPN) Type 2 Route from a second provider edge node, assigning a sequence number to the first EVPN Type 2 Route, and communicating the first EVPN Type 2 Route with the sequence number to the first provider edge node. The method further includes receiving a second EVPN Type 2 Route from a third provider edge node, generating an updated sequence number in response to receiving the second EVPN Type 2 Route from the third provider edge node, and communicating the second EVPN Type 2 Route with the updated sequence number to the first provider edge node and the second provider node.

公开(公告)号：US20220247599A1

公开(公告)日：2022-08-04

申请号：US17164690

申请日：2021-02-01

Applicant: Cisco Technology, Inc.

Inventor： Neeraj Malhotra ,  Balaji Pitta Venkatachalapathy ,  Krishnaswamy Muddenahally Ananthamurthy ,  Ali Sajassi ,  Dhananjaya Kasargod Rao

IPC: H04L12/46 ,  H04L12/723 ,  H04L12/721 ,  H04L12/751 ,  H04L12/749 ,  H04L29/12

Abstract: In one embodiment, a method includes receiving, by a route reflector, a subscription request from a first provider edge node in a network and generating a subscription policy for the first provider edge node. The method also includes receiving a first Ethernet Virtual Private Network (EVPN) Type 2 Route from a second provider edge node, assigning a sequence number to the first EVPN Type 2 Route, and communicating the first EVPN Type 2 Route with the sequence number to the first provider edge node. The method further includes receiving a second EVPN Type 2 Route from a third provider edge node, generating an updated sequence number in response to receiving the second EVPN Type 2 Route from the third provider edge node, and communicating the second EVPN Type 2 Route with the updated sequence number to the first provider edge node and the second provider node.

公开(公告)号：US20240364561A1

公开(公告)日：2024-10-31

申请号：US18641898

申请日：2024-04-22

Applicant: Cisco Technology, Inc.

Inventor： Neeraj Malhotra ,  Balaji Pitta Venkatachalapathy ,  Krishnaswamy Muddenahally Ananthamurthy ,  Ali Sajassi ,  Dhananjaya Kasargod Rao

IPC: H04L12/46 ,  H04L45/00 ,  H04L45/02 ,  H04L45/50 ,  H04L45/741 ,  H04L101/622

CPC classification number: H04L12/4641 ,  H04L45/02 ,  H04L45/50 ,  H04L45/66 ,  H04L45/741 ,  H04L2101/622

Abstract: In one embodiment, a method includes receiving, by a route reflector, a subscription request from a first provider edge node in a network and generating a subscription policy for the first provider edge node. The method also includes receiving a first Ethernet Virtual Private Network (EVPN) Type 2 Route from a second provider edge node, assigning a sequence number to the first EVPN Type 2 Route, and communicating the first EVPN Type 2 Route with the sequence number to the first provider edge node. The method further includes receiving a second EVPN Type 2 Route from a third provider edge node, generating an updated sequence number in response to receiving the second EVPN Type 2 Route from the third provider edge node, and communicating the second EVPN Type 2 Route with the updated sequence number to the first provider edge node and the second provider node.

公开(公告)号：US20220360470A1

公开(公告)日：2022-11-10

申请号：US17813959

申请日：2022-07-21

Applicant: Cisco Technology, Inc.

Inventor： Neeraj Malhotra ,  Balaji Pitta Venkatachalapathy ,  Krishnaswamy Muddenahally Ananthamurthy ,  Ali Sajassi ,  Dhananjaya Kasargod Rao

IPC: H04L12/46 ,  H04L45/50 ,  H04L45/02 ,  H04L45/741 ,  H04L45/00

Abstract: In one embodiment, a method includes receiving, by a route reflector, a subscription request from a first provider edge node in a network and generating a subscription policy for the first provider edge node. The method also includes receiving a first Ethernet Virtual Private Network (EVPN) Type 2 Route from a second provider edge node, assigning a sequence number to the first EVPN Type 2 Route, and communicating the first EVPN Type 2 Route with the sequence number to the first provider edge node. The method further includes receiving a second EVPN Type 2 Route from a third provider edge node, generating an updated sequence number in response to receiving the second EVPN Type 2 Route from the third provider edge node, and communicating the second EVPN Type 2 Route with the updated sequence number to the first provider edge node and the second provider node.

公开(公告)号：US20210336811A1

公开(公告)日：2021-10-28

申请号：US16858978

申请日：2020-04-27

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Ali Sajassi ,  Ijsbrand Wijnands ,  Krishnaswamy Muddenahally Ananthamurthy ,  Jayashree Subramanian

IPC: H04L12/18 ,  H04L12/46 ,  H04L12/761 ,  H04L12/741 ,  H04L12/913 ,  H04L29/06

Abstract: A networking environment includes a first node and a second node configured as Ethernet Virtual Private Networking (EVPN) peers on an EVPN subnet that is coupled to a Layer 3 VPN over a core network. The first node receives a first multicast join request from a third node in the core network, the first multicast join request including a source address and multicast group address of a source of a multicast stream. The first node determines that the source address and the multicast group address for the source are behind the EVPN subnet at the second node. The first node sends to the second node, a control plane join request message that includes a receiver identifier that identifies the third node as a receiver of the multicast stream, the receiver identifier enabling the second node to forward the multicast stream directly into the core network to the third node.

公开(公告)号：US20240372747A1

公开(公告)日：2024-11-07

申请号：US18776894

申请日：2024-07-18

Applicant: Cisco Technology, Inc.

Inventor： Neeraj Malhotra ,  Balaji Pitta Venkatachalapathy ,  Krishnaswamy Muddenahally Ananthamurthy ,  Ali Sajassi ,  Dhananjaya Kasargod Rao

IPC: H04L12/46 ,  H04L45/00 ,  H04L45/02 ,  H04L45/50 ,  H04L45/741 ,  H04L101/622

Abstract: In one embodiment, a method includes receiving, by a route reflector, a subscription request from a first provider edge node in a network and generating a subscription policy for the first provider edge node. The method also includes receiving a first Ethernet Virtual Private Network (EVPN) Type 2 Route from a second provider edge node, assigning a sequence number to the first EVPN Type 2 Route, and communicating the first EVPN Type 2 Route with the sequence number to the first provider edge node. The method further includes receiving a second EVPN Type 2 Route from a third provider edge node, generating an updated sequence number in response to receiving the second EVPN Type 2 Route from the third provider edge node, and communicating the second EVPN Type 2 Route with the updated sequence number to the first provider edge node and the second provider node.

公开(公告)号：US20220200814A1

公开(公告)日：2022-06-23

申请号：US17472774

申请日：2021-09-13

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Ali Sajassi ,  Ijsbrand Wijnands ,  Krishnaswamy Muddenahally Ananthamurthy ,  Jayashree Subramanian

IPC: H04L12/18 ,  H04L12/46 ,  H04L9/40 ,  H04L45/74 ,  H04L47/724 ,  H04L45/16

Abstract: A networking environment includes a first node and a second node configured as Ethernet Virtual Private Networking (EVPN) peers on an EVPN subnet that is coupled to a Layer 3 VPN over a core network. The first node receives a first multicast join request from a third node in the core network, the first multicast join request including a source address and multicast group address of a source of a multicast stream. The first node determines that the source address and the multicast group address for the source are behind the EVPN subnet at the second node. The first node sends to the second node, a control plane join request message that includes a receiver identifier that identifies the third node as a receiver of the multicast stream, the receiver identifier enabling the second node to forward the multicast stream directly into the core network to the third node.