公开(公告)号：US11463312B2

公开(公告)日：2022-10-04

申请号：US17248349

申请日：2021-01-21

Applicant: Cisco Technology, Inc.

Inventor： Shyamsundar N. Maniyar ,  Muninder S. Sambi ,  Sanjay K. Hooda ,  Rajeev Kumar ,  Kedar S. Karmarkar ,  Himanshu Mehra ,  Nikhil Sharma

IPC: H04L41/08 ,  H04L41/0806 ,  H04L61/5014 ,  H04L61/5076 ,  H04L61/5046 ,  H04L101/668 ,  H04L41/0895

Abstract: Techniques for automated configuration are provided. A first device detects a new device connected by one or more new links in a network, and the first device transmits, to a dynamic host configuration protocol (DHCP) server, a request for a first new subnet. The first device then assigns a first address of the first new subnet to a first new interface of the first device. The first device additionally transmits a second address of the first new subnet to the new device, where the new device uses the second address to establish connectivity to the network.

公开(公告)号：US20220173999A1

公开(公告)日：2022-06-02

申请号：US17672278

申请日：2022-02-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Kedar Sudhir Karmarkar ,  Shyamsundar N. Maniyar ,  Sanjay Kumar Hooda

IPC: H04L45/16 ,  H04L45/74

Abstract: This technology enables directed broadcasts in network fabrics. A control plane node is configured to resolve directed broadcast addresses by mapping the directed broadcast address to a subnet address. A fabric border node receives a directed broadcast, extracts a destination address, and transmits a request to the control plane node to resolve the destination address. The control plane node retrieves the stored mapping and generates a map reply with a multicast destination. The fabric border node encapsulates and forwards the directed broadcast to fabric edge nodes, which decapsulate the directed broadcast and deliver a data set from the directed broadcast to appropriate end point devices. Each fabric edge node may be enabled to determine if the fabric edge node may be connected to a silent host and, based on that determination, request the fabric border node to be added to the multicast destination to receive the directed broadcast.

公开(公告)号：US11258621B2

公开(公告)日：2022-02-22

申请号：US16897110

申请日：2020-06-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Kedar Sudhir Karmarkar ,  Shyamsundar N. Maniyar ,  Sanjay Kumar Hooda

IPC: H04L12/18 ,  H04L12/741 ,  H04L12/46 ,  H04L12/761 ,  H04L12/751 ,  H04L45/745 ,  H04L45/16 ,  H04L45/02

Abstract: This technology enables directed broadcasts in network fabrics. To enable a directed broadcast, a control plane node is configured to resolve directed broadcast addresses by mapping the directed broadcast address to a subnet address associated with the network fabric. A fabric border node receives a directed broadcast, extracts a destination address associated with the directed broadcast, and transmits a request to the control plane node to resolve the destination address. The control plane node retrieves the stored mapping and generates a map reply to the fabric border node with a multicast destination comprising the network fabric subnet address. The fabric border node encapsulates the directed broadcast with a header comprising the multicast destination and forwards the encapsulated directed broadcast to fabric edge nodes, which decapsulate the directed broadcast and deliver a data set from the directed broadcast to appropriate end point devices.

公开(公告)号：US10812446B1

公开(公告)日：2020-10-20

申请号：US16518896

申请日：2019-07-22

Applicant: Cisco Technology, Inc.

Inventor： Satish Kumar Kondalam ,  Sanjay K. Hooda ,  Shyamsundar N. Maniyar

IPC: H04L29/12 ,  H04L12/66 ,  H04L12/46

Abstract: The present disclosure provides for dynamic host configuration across multiple sites in software defined networks, by: receiving, from a host, a DHCP (Dynamic Host Configuration Protocol) discover message at an edge network device of a site; adding to the DHCP discover message a sender border network device IP (Internet Protocol) address for a border network device of the site; transmitting the DHCP discover message, from the border network device to a DHCP server located externally of the site to instruct the DHCP server to return a DHCP offer packet including a destination border network device IP address for a destination border network device of a destination site; receiving the DHCP offer packet; and in response to determining that the destination border network device IP address matches the sender border network device IP address, forwarding the DHCP offer packet to the edge network device to perform DHCP forwarding.

公开(公告)号：US20190089590A1

公开(公告)日：2019-03-21

申请号：US15708175

申请日：2017-09-19

Applicant: Cisco Technology, Inc.

Inventor： Subrat Mohanty ,  Shyamsundar N. Maniyar ,  Mark Montañez ,  Ravindra Narayan

IPC: H04L12/24

Abstract: Detection and configuration of a logical channel may be provided. First, data traffic received on a plurality of ports of a first network device may be analyzed by a computing device. Next, based upon analyzing the data traffic received on the plurality of ports, the computing device may determine that the plurality of ports comprise a logical channel from the perspective of a second network device. The plurality of ports may then be configured as the logical channel on the first network device based upon determining that the plurality of ports comprise the logical channel from the perspective of the second network device.