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公开(公告)号：CA2866895A1
公开(公告)日：2013-10-24
申请号：CA2866895
申请日：2013-04-22
Applicant: CISCO TECH INC
Inventor： HUI JONATHAN W , HONG WEI , VASSEUR JEAN-PHILIPPE
IPC: H04W72/00
Abstract: In one embodiment, a device receives and stores a broadcast schedule, and may determine whether a neighbor unicast listening schedule is available for a neighboring device. If so, the device may transmit a data frame to the neighboring device pursuant to the neighbor unicast listening schedule. If a neighbor unicast listening schedule is not available, the device may transmit the data frame to the neighboring device pursuant to a broadcast schedule. Once the data frame is received by the neighboring device, pursuant to the neighbor unicast listening schedule or the broadcast schedule, an acknowledgement may be received from the neighboring device, which may include an updated neighbor unicast listening schedule for that neighboring device.
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公开(公告)号：CA2866886A1
公开(公告)日：2013-09-26
申请号：CA2866886
申请日：2013-03-22
Applicant: CISCO TECH INC
Inventor： HUI JONATHAN W , VASSEUR JEAN-PHILIPPE , HONG WEI
Abstract: In one embodiment, a device maintains a predetermined number of high- priority subcarriers for use in communicating high-priority data frames and a predetermined number of low-priority subcarriers for use in communicating low- priority data frames. A data frame is received and a data frame priority is determined for the data frame. If the data frame is determined to be a low-priority data frame, a minimum number of subcarriers, from the low-priority subcarriers, required for communication of the data frame is determined and the data frame is communicated using the minimum number of subcarriers. If the data frame is determined to be a high-priority data frame, a maximum number of subcarriers available, including the high-priority subcarriers and the low-priority subcarriers, is determined and the data frame is communicated using the maximum number of subcarriers.
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公开(公告)号：CA2866879A1
公开(公告)日：2013-09-26
申请号：CA2866879
申请日：2013-03-22
Applicant: CISCO TECH INC
Inventor： VASSEUR JEAN-PHILIPPE , HUI JONATHAN W
Abstract: In one embodiment, a reactive routing network may be dynamically divided into reactive routing network sub-domains that comprise a plurality of nodes having bounded route request (RREQ) scopes (e.g., search-domains) that are limited to a particular path length. The transit node in a first reactive routing network sub-domain may receive a RREQ from an originating node within the first reactive routing network sub-domain for a target node determined by the originating node to be beyond the bounded RREQ scope of the originating node. The transit node may then discover a route from the transit node to the target node, and return the route to the originating node. In this manner, the transit node may establish a complete route between the originating node and the target node.
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14.发明专利
公开(公告)号：CA2841977A1
公开(公告)日：2013-01-31
申请号：CA2841977
申请日：2012-07-20
Applicant: CISCO TECH INC
Inventor： VASSEUR JEAN-PHILIPPE , HUI JONATHAN W
IPC: H04W72/00 , H04B1/7143
Abstract: In one embodiment, each device in a frequency hopping communication network operates according to a common broadcast schedule for the network that simultaneously overlays a configured portion of all independently determined unicast listening schedules in the network, wherein the overlaid configured portion is based on broadcast schedule parameters consisting of a first time spent for broadcast transmissions in each broadcast period and a second time between broadcast periods. By monitoring network characteristics relating to unicast traffic and broadcast traffic in the network, updated broadcast schedule parameters may then be determined based on the network characteristics. Operation of the common broadcast schedule may thus be updated with the updated broadcast schedule parameters, accordingly.
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公开(公告)号：DE602006014372D1
公开(公告)日：2010-07-01
申请号：DE602006014372
申请日：2006-03-14
Applicant: CISCO TECH INC
Inventor： PREVIDI STEFANO B , VASSEUR JEAN-PHILIPPE
IPC: H04L12/28
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Patent Agency Ranking
公开(公告)号：CA2569710A1
公开(公告)日：2006-01-05
申请号：CA2569710
申请日：2005-05-26
Applicant: CISCO TECH INC
Inventor： VASSEUR JEAN-PHILIPPE , PREVIDI STEFANO , FILSFILS CLARENCE
Abstract: A technique incorporates an efficient means for avoiding micro-loops on a backup path associated with a failed protected link. An intermediate node delays updating a forwarding database (FDB) contained in the intermediate node based on the intermediate node's distance from the failed link. Specifically, intermediate nodes near the failed protected link delay updating their FDBs for a longer period of time than nodes farther away from the failed link. By updating FDBs in this manner, micro-loops may be avoided on the failed link's backup path as nodes on the backup path that are close to the failed link do not update their FDBs ahead of nodes farther away on the backup path.
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公开(公告)号：CA2924210C
公开(公告)日：2022-08-23
申请号：CA2924210
申请日：2014-09-25
Applicant: CISCO TECH INC
Inventor： THUBERT PASCAL , LEVY-ABEGNOLI ERIC , WETTERWALD PATRICK , VASSEUR JEAN-PHILIPPE
Abstract: In one embodiment, a device both communicates with a network operating a distributed proactive routing protocol, and participates in a centralized path computation protocol. The device communicates routing characteristics of the distributed proactive routing protocol for the network from the network to the centralized path computation protocol, and also communicates one or more computed paths from the centralized path computation protocol to the network, where the computed paths from the centralized path computation protocol are based on the routing characteristics of the distributed proactive routing protocol for the network.
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公开(公告)号：CA2866876C
公开(公告)日：2019-03-05
申请号：CA2866876
申请日：2013-03-22
Applicant: CISCO TECH INC
Inventor： HUI JONATHAN W , VASSEUR JEAN-PHILIPPE
Abstract: In one embodiment, a region anchor node may receive a unicasted route request (RREQ) for a target node. The region anchor node may then flood the RREQ to a region within which it resides. Subsequently, the region anchor node may receive one or more reactive routing route replies (RREPs) returned by the target node within the region. Based on the RREPs, the region anchor node may build one or more region routes from the region anchor node to the target node, and returns the one or more region routes to the originator node to cause the originator node to concatenate the one or more region routes and the unicast route of the original RREQ to form a path from the originator node to the target node.
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公开(公告)号：CA2841975C
公开(公告)日：2018-07-17
申请号：CA2841975
申请日：2012-07-20
Applicant: CISCO TECH INC
Inventor： VASSEUR JEAN-PHILIPPE , HUI JONATHAN W
Abstract: In one embodiment, a communication device operates according to a particular frequency hopping sequence in a communication network, and receives a first packet with an indication that the first packet is part of a particular packet train, the packet train comprising a plurality of packets to be transmitted in succession. Accordingly, the communication device prevents transmission until receiving a final packet of the packet train, and stores received packets of the particular packet train while preventing the transmission.
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20.发明专利
公开(公告)号：CA2841977C
公开(公告)日：2017-02-28
申请号：CA2841977
申请日：2012-07-20
Applicant: CISCO TECH INC
Inventor： VASSEUR JEAN-PHILIPPE , HUI JONATHAN W
IPC: H04W72/00 , H04B1/7143
Abstract: In one embodiment, each device in a frequency hopping communication network operates according to a common broadcast schedule for the network that simultaneously overlays a configured portion of all independently determined unicast listening schedules in the network, wherein the overlaid configured portion is based on broadcast schedule parameters consisting of a first time spent for broadcast transmissions in each broadcast period and a second time between broadcast periods. By monitoring network characteristics relating to unicast traffic and broadcast traffic in the network, updated broadcast schedule parameters may then be determined based on the network characteristics. Operation of the common broadcast schedule may thus be updated with the updated broadcast schedule parameters, accordingly.
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