公开(公告)号：US10484333B2

公开(公告)日：2019-11-19

申请号：US15650913

申请日：2017-07-16

Applicant: Cisco Technology, Inc.

Inventor： Kabiraj Sethi ,  Shivangi Sharma ,  Peter G. Jones ,  Jimit Maheta

IPC: H04L29/06 ,  H04L12/753 ,  H04L12/933 ,  H04L12/931 ,  H04L12/46 ,  H04L12/24 ,  H04L12/26

Abstract: In one embodiment, a system, apparatus, and method are described for providing limited data connectivity for devices connected to a switch when the switch enters bootloader mode. The switch has a central processing unit (CPU), the CPU comprising a reload handler and an application-specific integrated circuit (ASIC), the ASIC comprising ASIC forwarding logic. The ASIC is instructed, by the reload handler, to store an ASIC database, the ASIC database for storing the ASIC forwarding logic. The reload handler maintains a physical layer (PHY) state of the switch. Use of spanning tree protocol (STP) and Transmission Control Protocol (TCP) keepalive is disabled in the switch. A state of stack hardware is retained in switch memory. New ports of the switch are prevented from becoming active, and the ASIC forwarding logic is, in response to receiving the instruction, stored in the ASIC database. Related systems, apparatuses, and methods are also described.

公开(公告)号：US20180255002A1

公开(公告)日：2018-09-06

申请号：US15446802

申请日：2017-03-01

Applicant: Cisco Technology, Inc.

Inventor： Sanjay Kumar Hooda ,  Kaushik Kumar Dam ,  Sandesh Kumar Narappa Bheemanakone ,  Victor M. Moreno ,  Shivangi Sharma

IPC: H04L12/931 ,  H04W72/12 ,  H04W74/00

CPC classification number: H04L49/201 ,  H04W72/121 ,  H04W74/002

Abstract: Group based multicasts may be provided. First, a request may be received. The request may comprise a receiver tag, a request source identifier, and a request multicast group identifier. Next, a source tag corresponding to the request source identifier may be obtained and then it may be determined that a group corresponding to the receiver tag is allowed to access content from a source corresponding to the obtained source tag. In response to determining that the group corresponding to the receiver tag is allowed to access content from the source corresponding to the obtained source tag, content may be received from the source at a multicast group corresponding to the request multicast group identifier. The content may then be forwarded to a receiver corresponding to the request.

公开(公告)号：US09654341B2

公开(公告)日：2017-05-16

申请号：US14185075

申请日：2014-02-20

Applicant: Cisco Technology, Inc.

Inventor： Vamsidhar Valluri ,  Parameswaran Kumarasamy ,  Daniel G. Wing ,  Parag Pritam Thakore ,  Anand Oswal ,  Shivangi Sharma

IPC: H04L29/06 ,  H04L12/24 ,  H04W24/02 ,  H04L1/00 ,  H04L1/20 ,  H04W28/02 ,  H04L12/833 ,  H04L12/801 ,  H04W80/04 ,  H04L29/08 ,  H04W80/06

CPC classification number: H04L41/0836 ,  H04L1/0026 ,  H04L1/20 ,  H04L41/083 ,  H04L41/0853 ,  H04L41/5009 ,  H04L43/08 ,  H04L47/11 ,  H04L47/2458 ,  H04L67/322 ,  H04L69/16 ,  H04L69/163 ,  H04W24/02 ,  H04W28/0273 ,  H04W80/04 ,  H04W80/06

Abstract: In one embodiment, a method comprises obtaining, by a client device via a wireless data link with a wireless access point, information from a network device within a data network reachable via the wireless access point, the information describing network conditions associated with a service provided to the client device via the data network; and the client device optimizing a transmission control protocol (TCP) communication, via the wireless data link, for optimization of the service provided by the client device.