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公开(公告)号：JP2000286896A
公开(公告)日：2000-10-13
申请号：JP2000067099
申请日：2000-03-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： AUKIA PETRI , LAKSHMAN TIRUNELL V , MITRA DEBASIS , KAJAMALAI GOPARASWAMY , STILIADIS DIMITRIOS
Abstract: PROBLEM TO BE SOLVED: To provide a method and a device for generating a new routing path through the router of a packet network by permitting respective filter rules generated based on the path on a packet flow through the router to regulate a physical path through the router. SOLUTION: A path related to respective packet flows is decided based on service quality supply information and network topology information. The group of single or plural filter routers is generated concerning the pertinent router based on the path related to the packet flow through the router. Respective filter rules regulate the physical path through the pertinent router. The selected filter rule is applied to the respective packets of the packet flow and the respective packets pass through the corresponding path through the pertinent router. In a network 100, for example, the routers 102-107 decide a logic path based on a multi-commodity flow routing method.
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公开(公告)号：JPH10313324A
公开(公告)日：1998-11-24
申请号：JP2757398
申请日：1998-02-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DUFFIELD NICHOLAS G , TEI V RAKUSHIMAN , STILIADIS DIMITRIOS
Abstract: PROBLEM TO BE SOLVED: To provide an impartial queue system. SOLUTION: This packet delivery system is made up of a plurality of queues 20 (20a-20i) for each connection string packets temporarily, a weighting impartial queue scheduling means 40 that serves the packets at a prescribed rate, a means that detects the presence of packets in the queue, and a state-dependent scheduling means 200 that redistributes an excess band width generated resulting from the absence of the packet. The state-dependent scheduling means 200 serves the queues 20 according to a state variable, in response to the performance characteristics of the queues.
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公开(公告)号：DE69834763D1
公开(公告)日：2006-07-20
申请号：DE69834763
申请日：1998-01-27
Applicant: LUCENT TECHNOLOGIES INC
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公开(公告)号：DE69835781D1
公开(公告)日：2006-10-19
申请号：DE69835781
申请日：1998-02-03
Applicant: LUCENT TECHNOLOGIES INC , AT & T CORP
Abstract: Apparatus for routing packets in a communication network comprises a plurality (100) of per-connection queues (20a--20i), each queue established for receiving packets from a respective source and temporarily storing received packets before routing to a particular destination; a weighted fair-queuing scheduler (40) for servicing packets from each of the plurality of per-connection queues at guaranteed pre-allocated rates; a sensing device for sensing a presence or absence of packets in queues, the absence of packets in queues indicating availability of excess bandwidth; and, a state dependent scheduler (200) for redistributing excess bandwidth upon sensing of queues absent packets, the state dependent scheduler (200) servicing those queues in accordance with a state variable corresponding to a performance property of the queues, wherein delay and isolation properties for routing packets of respective queues in weighted fair-queuing is preserved.
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公开(公告)号：CA2227244C
公开(公告)日：2001-10-02
申请号：CA2227244
申请日：1998-01-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHOUDHURY ABHIJIT KUMAR , STILIADIS DIMITRIOS , LAKSHMAN TIRUNELLAI VISWANATHA , SUTER BERNHARD
Abstract: A per-flow queuing method and apparatus for IP networks carrying traffic from feedback controlled TCP connections enables flow of information packets from one or more sources to a destination through a link and comprises a buffer of predetermined size partitioned into a plurality of queues, each queue being allocated an occupancy bi for receiving and temporarily storing packets of information; a scheduler for removing packets from each buffer according to a predetermined rate and transmitting the packets over a network; and a control device for determining availablilty of queues in the buffer capable of receiving the packet and inputting the packet into a queue if the queue is available, the control device further selecting a queue and releasing a packet from the selected queue to accommodate input of the received packet when the queue is not available. Increased fairness and packet throughput through the link is achieved when the queue for dropping a packet is selected in accordance with a longest queue first or random drop scheme and, when a drop from front strategy for ACK packets is employed.
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Patent Agency Ranking
公开(公告)号：CA2227244A1
公开(公告)日：1998-08-07
申请号：CA2227244
申请日：1998-01-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： STILIADIS DIMITRIOS , CHOUDHURY ABHIJIT KUMAR , LAKSHMAN TIRUNELLAI VISWANATHA , SUTER BERNHARD
Abstract: A per-flow queuing method and apparatus for IP networks carrying traffic from feedback controlled TCP connections enables flow of information packets from one or more sources to a destination through a link and comprises a buffer of predetermined size partitioned into a plurality of queues, each queue being allocated an occupancy bi for receiving and temporarily storing packets of information; a scheduler for removing packets from each buffer according to a predetermined rate and transmitting the packets over a network; and a control device for determining availablilty of queues in the buffer capable of receiving the packet and inputting the packet into a queue if the queue is available, the control device further selecting a queue and releasing a packet from the selected queue to accommodate input of the received packet when the queue is not available. Increased fairness and packet throughput through the link is achieved when the queue for dropping a packet is selected in accordance with a longest queue first or random drop scheme and, when a drop from front strategy for ACK packets is employed.
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公开(公告)号：DE69835781T2
公开(公告)日：2007-09-13
申请号：DE69835781
申请日：1998-02-03
Applicant: LUCENT TECHNOLOGIES INC , AT & T CORP
Abstract: Apparatus for routing packets in a communication network comprises a plurality (100) of per-connection queues (20a--20i), each queue established for receiving packets from a respective source and temporarily storing received packets before routing to a particular destination; a weighted fair-queuing scheduler (40) for servicing packets from each of the plurality of per-connection queues at guaranteed pre-allocated rates; a sensing device for sensing a presence or absence of packets in queues, the absence of packets in queues indicating availability of excess bandwidth; and, a state dependent scheduler (200) for redistributing excess bandwidth upon sensing of queues absent packets, the state dependent scheduler (200) servicing those queues in accordance with a state variable corresponding to a performance property of the queues, wherein delay and isolation properties for routing packets of respective queues in weighted fair-queuing is preserved.
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公开(公告)号：DE69834763T2
公开(公告)日：2007-06-14
申请号：DE69834763
申请日：1998-01-27
Applicant: LUCENT TECHNOLOGIES INC
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公开(公告)号：CA2299111A1
公开(公告)日：2000-09-11
申请号：CA2299111
申请日：2000-02-23
Applicant: LUCENT TECHNOLOGIES INC
Inventor： STILIADIS DIMITRIOS , RAMAKRISHNAN KAJAMALAI GOPALAS , MITRA DEBASIS , LAKSHMAN TIRUNELL V , AUKIA PETRI
Abstract: A packet network employs routers that determine network routing based on quality of service (QoS) provisioning parameters and network topology information. QoS provisioning parameters are provided to each router from a network management database, and the network topology information is determined from a link state database of the router. The link state database may include network topology information collected by the router in accordance with the open shortest path protocol (OSPF). A network link, router, or other node failure initiates a new path-selection process. First, a temporary set of provisioning entries may be determined with a shortest path first (SPF) routing method. Then, the network packet flows may be classified into packet flows, real-time and non-real-time, and then as packet flows that require reserved bandwidth or that may be multiplexed. A multicommodity flow (MCF) routing method is then employed to determine an optimized set of candidate provisioning entries for the packet flows that may be multiplexed. The MCF routing method determines new routing for the packet flows based on QoS provisioning commitments as parameters. The MCF routing method determines the new routing based on an optimization criterion, such as maximized revenue. Once the new routing is determined, routing of network traffic is enabled by converting the provisioning entries into filter rules, which are then loaded into the packet classifier of the router.
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10.发明申请METHOD AND APPARATUS FOR PROVIDING SERCURE REMOTE ACCESS TO ENTERPRISE NETWORKS 审中-公开提供远程访问企业网络的方法和设备
公开(公告)号：WO2007089327A2
公开(公告)日：2007-08-09
申请号：PCT/US2006046218
申请日：2006-12-01
Applicant: LUCENT TECHNOLOGIES INC , KAMAT SANJAY D , KOPPOL PRAMOD V N , KUMAR VIJAY POCHAMPALLI , STILIADIS DIMITRIOS
Inventor： KAMAT SANJAY D , KOPPOL PRAMOD V N , KUMAR VIJAY POCHAMPALLI , STILIADIS DIMITRIOS
CPC classification number: H04L63/0281 , H04L12/2856 , H04L63/0272 , H04L63/164 , H04W12/02 , H04W12/06 , H04W76/02
Abstract: The invention includes a method and apparatus for providing secure remote access to enterprise networks. An apparatus includes a network interface module adapted for maintaining a secure network connection with a network device independent of a power state of a host computer associated with the apparatus a storage module for storing information associated with the secure connection, and a processor coupled to the network interface and the memory where the processor is adapted for automatically initiating the secure connection without user interaction.
Abstract translation: 本发明包括用于向企业网络提供安全远程访问的方法和装置。 一种装置包括：网络接口模块，适于维持与网络设备的安全网络连接，独立于与该设备相关联的主计算机的电源状态，存储模块，用于存储与安全连接相关联的信息;以及处理器，耦合到网络 接口和存储器，其中处理器适于在没有用户交互的情况下自动启动安全连接。
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