-
公开(公告)号：US10608984B2
公开(公告)日：2020-03-31
申请号：US15465496
申请日：2017-03-21
Applicant: Cisco Technology, Inc.
Inventor： Srividya Vemulakonda , Huilong Huang , Shyam Kapadia , Rajesh B Nataraja , Liqin Dong , Stephanie Wong
Abstract: In one implementation, a method performed by a first node with interfaces configured as IP unnumbered interfaces sharing a single IP address and to communicate with a DHCP-associated second node includes: obtaining a first message that indicates a configuration status of a third node at a respective interface; obtaining a second message for the third node from the DHCP-associated second node that includes a temporary IP address for the third node and an indicator of a file server; obtaining a third message associated with the third node that includes the temporary IP address, the third message requests address information for the file server; and configuring the third node by establishing a connection between the third node and the file server to transfer at least one configuration file, where configuring the third node includes providing the temporary IP address to the DHCP-associated second node via BGP.
-
公开(公告)号：US20200007403A1
公开(公告)日：2020-01-02
申请号：US16570886
申请日：2019-09-13
Applicant: Cisco Technology, Inc.
Inventor： Patnala Debashis Rao , Huilong Huang , Deepak Raykar , Shyam Kapadia , Stephanie Wong
Abstract: The present disclosure provides systems, methods, and non-transitory computer-readable storage media for determining container to leaf switch connectivity information in a data center in a presence of blade switches and servers. In one aspect of the present disclosure, a method of determining container to leaf switch connectivity information of a data center utilizing at least one blade switch and at least one blade server, includes receiving, at a network controller, link connectivity information that includes south-bound neighboring information between the at least one blade switch of the data center and the at least one blade server of the data center; determining, at the network controller, the container to leaf switch connectivity information of the data center, based on the link connectivity information; and generating a visual representation of a topology of the data center based on the container to leaf switch connectivity information.
-
公开(公告)号：US10476700B2
公开(公告)日：2019-11-12
申请号：US15228899
申请日：2016-08-04
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Victor Manuel Moreno , Padmanabhan Krishnan , Nilesh Shah , Suvil Singh Deora , Shyam Kapadia
Abstract: In one embodiment a method includes receiving a first message including information regarding a first host connected to a first tunnel endpoint in a first network domain, the received information being encoded in accordance with a control plane protocol of the first network domain; translating the received first message in accordance with an API and/or a database schema of a second network domain; and transmitting the translated first message to the second network domain. The method further includes receiving a second message comprising information regarding a second host connected to a second tunnel endpoint in the second network domain, the received information being encoded in accordance with the API and/or the database schema of the second network domain; translating the second received message in accordance with the control plane protocol of the first network domain; and transmitting the translated second message to the first network domain.
-
公开(公告)号：US10425288B2
公开(公告)日：2019-09-24
申请号：US15656381
申请日：2017-07-21
Applicant: Cisco Technology, Inc.
Inventor： Patnala Debashis Rao , Huilong Huang , Deepak Raykar , Shyam Kapadia , Stephanie Wong
Abstract: The present disclosure provides systems, methods, and non-transitory computer-readable storage media for determining container to leaf switch connectivity information in a data center in a presence of blade switches and servers. In one aspect of the present disclosure, a method of determining container to leaf switch connectivity information of a data center utilizing at least one blade switch and at least one blade server, includes receiving, at a network controller, link connectivity information that includes south-bound neighboring information between the at least one blade switch of the data center and the at least one blade server of the data center; determining, at the network controller, the container to leaf switch connectivity information of the data center, based on the link connectivity information; and generating a visual representation of a topology of the data center based on the container to leaf switch connectivity information.
-
115.发明授权公开(公告)号：US10243916B2
公开(公告)日：2019-03-26
申请号：US15093541
申请日：2016-04-07
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Mehak Mahajan , Samir D. Thoria , Shyam Kapadia
Abstract: A method is provided in one example embodiment and includes receiving at a controller an Address Resolution Protocol (“ARP”) packet from a source VXLAN Tunnel End Point (“VTEP”) serving a source host and identifying a destination, the source VTEP having assigned thereto a Virtual Network Identifier (“VNI”) identifying a VXLAN network to which the source VTEP and a plurality of other VTEPs belong, the ARP packet being received by the controller via a control plane; determining whether the received ARP packet is a request message; and, if the received ARP packet is a request message, determining whether address information for the identified destination is stored in a cache of the controller.
-
Patent Agency Ranking
公开(公告)号：US20190028352A1
公开(公告)日：2019-01-24
申请号：US15656381
申请日：2017-07-21
Applicant: Cisco Technology, Inc.
Inventor： Patnala Debashis Rao , Huilong Huang , Deepak Raykar , Shyam Kapadia , Stephanie Wong
Abstract: The present disclosure provides systems, methods, and non-transitory computer-readable storage media for determining container to leaf switch connectivity information in a data center in a presence of blade switches and servers. In one aspect of the present disclosure, a method of determining container to leaf switch connectivity information of a data center utilizing at least one blade switch and at least one blade server, includes receiving, at a network controller, link connectivity information that includes south-bound neighboring information between the at least one blade switch of the data center and the at least one blade server of the data center; determining, at the network controller, the container to leaf switch connectivity information of the data center, based on the link connectivity information; and generating a visual representation of a topology of the data center based on the container to leaf switch connectivity information.
-
公开(公告)号：US10142264B2
公开(公告)日：2018-11-27
申请号：US15224158
申请日：2016-07-29
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Rajesh Babu Nataraja , Shyam Kapadia , Lei Fu , Nilesh Shah
IPC: H04L12/46 , H04L12/931 , H04L12/24
Abstract: A method is described and in one embodiment includes receiving at a top-of-rack (“TOR”) switch a notification concerning a virtual machine (“VM”), wherein the received notification identifies a host associated with the VM; determining whether the identified host is directly connected to the TOR switch; and if the identified host is not directly connected to the TOR switch, identifying an intermediate switch to which the identified host is directly connected; and determining whether the identified intermediate switch to which the identified host is directly attached is attached to the TOR switch.
-
公开(公告)号：US09985867B2
公开(公告)日：2018-05-29
申请号：US15043079
申请日：2016-02-12
Applicant: Cisco Technology, Inc.
Inventor： Liqin Dong , Shyam Kapadia , Neeraj Malhotra , Richard Lam , Lukas Krattiger
IPC: H04L12/751
CPC classification number: H04L45/02
Abstract: Presented herein are methods for advertising an IP prefix to address the connectivity problem in multi-chassis link aggregation scenario. A peer switch will advertise two VTEP addresses. It will use a physical IP (PIP) address as a next hop (NH) for a prefix route, while continuing to use a VIP for host IP and MAC route advertisement. A new virtual MAC is introduced and it is derived from the VIP as the router MAC associated with VIP. A switch is made to use a VIP for prefix advertisement when a device detects that the same prefix is reachable both locally and from its peer. This saves adjacency entries consumed in the remote VTEPs. These techniques fix the connectivity issue for prefix routes that is exposed with current EVPN, without requiring any additional adjacency resource consumption.
-
公开(公告)号：US20180013670A1
公开(公告)日：2018-01-11
申请号：US15711812
申请日：2017-09-21
Applicant: Cisco Technology, Inc.
Inventor： Shyam Kapadia , Liqin Dong , Yibin Yang
IPC: H04L12/715 , H04L12/24 , H04L12/46 , H04L12/741 , H04L12/721
CPC classification number: H04L45/64 , H04L12/46 , H04L12/4625 , H04L12/4633 , H04L41/04 , H04L45/38 , H04L45/66 , H04L45/74
Abstract: Systems, methods, and computer-readable media for OAM in overlay networks. In response to receiving a packet associated with an OAM operation from a device in an overlay network, the system generates an OAM packet. The system can be coupled with the overlay network and can include a tunnel endpoint interface associated with an underlay address and a virtual interface associated with an overlay address. The overlay address can be an anycast address assigned to the system and another device in the overlay network. Next, the system determines that a destination address associated with the packet is not reachable through the virtual interface, the destination address corresponding to a destination node in the overlay network. The system also determines that the destination address is reachable through the tunnel endpoint interface. The system then provides the underlay address associated with the tunnel endpoint interface as a source address in the OAM packet.
-
公开(公告)号：US09800497B2
公开(公告)日：2017-10-24
申请号：US14723291
申请日：2015-05-27
Applicant: Cisco Technology, Inc.
Inventor： Shyam Kapadia , Liqin Dong , Yibin Yang
IPC: H04L12/715 , H04L12/721 , H04L12/24 , H04L12/46 , H04L12/741
CPC classification number: H04L45/64 , H04L12/46 , H04L12/4625 , H04L12/4633 , H04L41/04 , H04L45/38 , H04L45/66 , H04L45/74
Abstract: Systems, methods, and computer-readable media for OAM in overlay networks. In response to receiving a packet associated with an OAM operation from a device in an overlay network, the system generates an OAM packet. The system can be coupled with the overlay network and can include a tunnel endpoint interface associated with an underlay address and a virtual interface associated with an overlay address. The overlay address can be an anycast address assigned to the system and another device in the overlay network. Next, the system determines that a destination address associated with the packet is not reachable through the virtual interface, the destination address corresponding to a destination node in the overlay network. The system also determines that the destination address is reachable through the tunnel endpoint interface. The system then provides the underlay address associated with the tunnel endpoint interface as a source address in the OAM packet.
-
-
-
-
-
-
-
-
-
Search Results
130
records
(took 0.022 seconds)
