公开(公告)号：US20140105033A1

公开(公告)日：2014-04-17

申请号：US13652971

申请日：2012-10-16

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Jean-Philippe Vasseur ,  Jonathan W. Hui ,  Atul B. Mahamuni

IPC: H04L12/26 ,  H04L12/56

CPC classification number: H04L45/24 ,  H04L41/0668 ,  H04L43/0811

Abstract: In one embodiment, a source node monitors a quality of a primary link, and forwards one or more duplicate copies of a packet in response to poor quality of the primary link. Specifically, forwarding generally comprises transmitting a first copy of the packet on the primary link with an indication of duplicate copies, and transmitting a second copy of the packet on a backup link with an indication of duplicate copies. In another embodiment, an intermediate node receives a first copy of a packet with an indication of duplicate copies, and stores an identifier of the first copy of the packet in response to the indication. Upon receiving a second copy of the packet with the indication of duplicate copies, the node determines whether the identifier of the second copy matches the stored identifier of the first copy, such that in response to a match, the second copy is dropped.

Abstract translation: 在一个实施例中，源节点监视主链路的质量，并且响应于主链路质量差而转发分组的一个或多个重复副本。 具体地，转发通常包括在主链路上发送分组的第一副本，并具有重复副本的指示，以及在具有重复副本的指示的备份链路上发送该分组的第二副本。 在另一个实施例中，中间节点接收具有重复副本的指示的分组的第一副本，并且响应于该指示而存储分组的第一副本的标识符。 在接收到具有重复副本的指示的分组的第二副本时，节点确定第二副本的标识符是否与存储的第一副本的标识符相匹配，使得响应于匹配，第二副本被丢弃。

公开(公告)号：US20140376547A1

公开(公告)日：2014-12-25

申请号：US13921619

申请日：2013-06-19

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Atul B. Mahamuni ,  Carol Barrett

IPC: H04L29/08

CPC classification number: H04L67/32 ,  H04L47/35 ,  H04L69/08 ,  H04L69/163 ,  H04L69/22 ,  H04L69/324

Abstract: In one embodiment, a router establishes a serial-over-TCP/IP (Transmission Control Protocol/Internet Protocol) communication session between terminal units using raw-TCP encapsulation. For the session, the router maps serial characters to TCP out-of-band (OOB) communication fields, maps serial flow control signals to TCP/IP receiver-window advertisements, and dynamically adjusts a TCP/IP priority based on serial payload priority. Accordingly, the router may thus communicate data over the serial-over-TCP/IP session based on the mappings and priority.

Abstract translation: 在一个实施例中，路由器使用原始TCP封装在终端单元之间建立串行TCP / IP（传输控制协议/因特网协议）通信会话。 对于会话，路由器将串行字符映射到TCP带外（OOB）通信字段，将串行流控制信号映射到TCP / IP接收器窗口广告，并根据串行有效载荷优先级动态调整TCP / IP优先级。 因此，路由器因此可以基于映射和优先级通过TCP / IP串行会话传送数据。

公开(公告)号：US20140126348A1

公开(公告)日：2014-05-08

申请号：US13669065

申请日：2012-11-05

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Atul B. Mahamuni ,  Jean-Philippe Vasseur

IPC: H04W24/04

CPC classification number: H04L45/22 ,  H04W40/36 ,  H04W84/18 ,  H04W88/04

Abstract: In one embodiment, a first stationary router may detect a disconnected backhaul link to a destination. In response to detecting the disconnected backhaul link, the first stationary router may send a message to a first traveling mobile device, to cause the message to be sent toward the destination via a second stationary router. The second stationary router may receive the message from the first traveling mobile device, and in response to forwarding the message to the destination over its connected backhaul link, may send an acknowledgment toward the first stationary router via a second traveling mobile device. The first stationary router may then, in response to receiving the acknowledgment, cease sending copies of the message to other traveling mobile devices.

Abstract translation: 在一个实施例中，第一固定路由器可以检测到到目的地的断开的回程链路。 响应于检测到断开的回程链路，第一固定路由器可以向第一移动移动设备发送消息，以使消息经由第二固定路由器发送到目的地。 第二固定路由器可以从第一移动移动设备接收消息，并且响应于通过其连接的回程链路将消息转发到目的地，可以经由第二行进移动设备向第一固定路由器发送确认。 然后，响应于接收到确认，第一固定路由器可以停止将消息的副本发送到其他行驶的移动设备。

公开(公告)号：US09444727B2

公开(公告)日：2016-09-13

申请号：US13652971

申请日：2012-10-16

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Jonathan W. Hui ,  Atul B. Mahamuni

IPC: H04L12/26 ,  H04L12/707 ,  H04L12/24

CPC classification number: H04L45/24 ,  H04L41/0668 ,  H04L43/0811

Abstract: In one embodiment, a source node monitors a quality of a primary link, and forwards one or more duplicate copies of a packet in response to poor quality of the primary link. Specifically, forwarding generally comprises transmitting a first copy of the packet on the primary link with an indication of duplicate copies, and transmitting a second copy of the packet on a backup link with an indication of duplicate copies. In another embodiment, an intermediate node receives a first copy of a packet with an indication of duplicate copies, and stores an identifier of the first copy of the packet in response to the indication. Upon receiving a second copy of the packet with the indication of duplicate copies, the node determines whether the identifier of the second copy matches the stored identifier of the first copy, such that in response to a match, the second copy is dropped.

Abstract translation: 在一个实施例中，源节点监视主链路的质量，并且响应于主链路质量差而转发分组的一个或多个重复副本。 具体地，转发通常包括在主链路上发送分组的第一副本，并具有重复副本的指示，以及在具有重复副本的指示的备份链路上发送该分组的第二副本。 在另一个实施例中，中间节点接收具有重复副本的指示的分组的第一副本，并且响应于该指示而存储分组的第一副本的标识符。 在接收到具有重复副本的指示的分组的第二副本时，节点确定第二副本的标识符是否与存储的第一副本的标识符相匹配，使得响应于匹配，第二副本被丢弃。

公开(公告)号：US09294584B2

公开(公告)日：2016-03-22

申请号：US13921619

申请日：2013-06-19

Applicant: Cisco Technology, Inc.

Inventor： Atul B. Mahamuni ,  Carol Barrett

IPC: H04L29/08 ,  H04L29/06 ,  H04L12/801

CPC classification number: H04L67/32 ,  H04L47/35 ,  H04L69/08 ,  H04L69/163 ,  H04L69/22 ,  H04L69/324

Abstract: In one embodiment, a router establishes a serial-over-TCP/IP (Transmission Control Protocol/Internet Protocol) communication session between terminal units using raw-TCP encapsulation. For the session, the router maps serial characters to TCP out-of-band (OOB) communication fields, maps serial flow control signals to TCP/IP receiver-window advertisements, and dynamically adjusts a TCP/IP priority based on serial payload priority. Accordingly, the router may thus communicate data over the serial-over-TCP/IP session based on the mappings and priority.

Abstract translation: 在一个实施例中，路由器使用原始TCP封装在终端单元之间建立串行TCP / IP（传输控制协议/因特网协议）通信会话。 对于会话，路由器将串行字符映射到TCP带外（OOB）通信字段，将串行流控制信号映射到TCP / IP接收器窗口广告，并根据串行有效载荷优先级动态调整TCP / IP优先级。 因此，路由器因此可以基于映射和优先级通过TCP / IP串行会话传送数据。