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1. 发明申请

US20170339049A1 METHODS AND SYSTEMS FOR FAILURE RECOVERY IN A VIRTUAL NETWORK ENVIRONMENT 审中-公开
公开(公告)号：US20170339049A1
公开(公告)日：2017-11-23
申请号：US15267696
申请日：2016-09-16
申请人： NASHID SHAHRIAR , JEEBAK MITRA , REAZ AHMED , SHIHABUR RAHMAN CHOWDHURY , RAOUF BOUTABA
发明人： NASHID SHAHRIAR , JEEBAK MITRA , REAZ AHMED , SHIHABUR RAHMAN CHOWDHURY , RAOUF BOUTABA
IPC分类号： H04L12/703 , H04L12/729 , H04L12/751 , H04L12/721 , H04L12/715 , H04L12/707
CPC分类号： H04L45/28 , H04L45/02 , H04L45/124 , H04L45/125 , H04L45/22 , H04L45/64
摘要： A method for failure recovery in a virtual network environment including a virtual network having virtual nodes and virtual links mapped onto substrate nodes and substrate paths, respectively, of a substrate network, the method comprising, in response to an indication of failure of at least one substrate node in the substrate network: re-mapping a virtual node mapped to a failed substrate node to a selected substrate node other than the failed substrate node; and re-mapping a virtual link mapped to a substrate path that involves the failed substrate node to a substrate path that does not involve the failed substrate node; wherein the re-mapping is carried out to achieve at least one re-mapping objective.

2. 发明授权

US07512068B1 Call admission control for a wireless network 有权
标题翻译：无线网络的呼叫接纳控制
公开(公告)号：US07512068B1
公开(公告)日：2009-03-31
申请号：US10958170
申请日：2004-10-04
申请人： Majid Ghaderi Dehkordi , Raouf Boutaba , Gary Kenward
发明人： Majid Ghaderi Dehkordi , Raouf Boutaba , Gary Kenward
IPC分类号： H04J1/16
CPC分类号： H04W28/16
摘要： A call admission method and apparatus are disclosed which maximizes the wireless channel utilization subject to a predetermined bound on the call dropping and packet loss probabilities for variable-bit-rate traffic in a packet switched network. The call admission scheme is stochastic and dynamic, hence it is able to adapt to a wide range of traffic fluctuations and mobility patterns. The call admission scheme disclosed satisfies a set of constraints on call dropping and packet loss probabilities while maintaining high bandwidth utilization.
摘要翻译：公开了一种呼叫准入方法和装置，其最大限度地利用了对分组交换网络中的可变比特率业务的呼叫丢弃和分组丢失概率的预定限制。呼叫接纳方案是随机和动态的，因此能够适应广泛的业务波动和移动性模式。所公开的呼叫准入方案在保持高带宽利用率的同时满足一组对呼叫丢弃和丢包概率的约束。

3. 发明授权

US11438139B2 Blockchain based secure naming and update verification 有权
公开(公告)号：US11438139B2
公开(公告)日：2022-09-06
申请号：US16270534
申请日：2019-02-07
申请人： Raouf Boutaba , Woojung Kim , Yuhao Dong
发明人： Raouf Boutaba , Woojung Kim , Yuhao Dong
IPC分类号： H04L9/06 , G06F21/64 , G06F21/57 , H04L9/00 , G06F8/65
摘要： A secure update is provided from a server to an end-point device. The server registers digital information, such as a name or a software package, and a verifiable key, such as a cryptographic hash, derived from the digital information. A publicly accessible transaction log stores the verifiable key in a block and provides an identifier of the block to the server. An end-point device receives the digital information and the identifier, and computes a separate verifiable key. The end-point device retrieves the verifiable key from the block of the publicly accessible transaction log, and compares the retrieved verifiable key to the separate verifiable key to determine whether the digital information has been compromised.

4. 发明申请

US20190028201A1 MULTI-LAYER VIRTUAL NETWORK EMBEDDING 审中-公开
公开(公告)号：US20190028201A1
公开(公告)日：2019-01-24
申请号：US15815871
申请日：2017-11-17
申请人： Shihabur Rahman CHOWDHURY , Reaz AHMED , Jeebak MITRA , Nashid SHAHRIAR , Raouf BOUTABA , Sara AYOUBI
发明人： Shihabur Rahman CHOWDHURY , Reaz AHMED , Jeebak MITRA , Nashid SHAHRIAR , Raouf BOUTABA , Sara AYOUBI
IPC分类号： H04B10/27 , H04L12/24 , H04L12/911 , H04L12/715
摘要： Some aspects and embodiments of the present invention provide effective mechanisms for provisioning virtual networks on communication networks. In particular some aspects and embodiments provide an effective mechanism for embedding a virtual network into a multi-layered substrate network which utilizes a different communication technology at each layer. One such example is an IP network overlaid over an optical network, such as an OTN network. Embodiments jointly determine the assignment of virtual nodes and virtual links. Assigning the nodes and links together can provide for a more optimal solution than assigning the nodes and the links separately. Some embodiments generate a collapsed graph which includes the optical network and the IP network in a single layer. Accordingly some embodiments jointly determine the assignment of virtual nodes and virtual links within such a collapsed graph, which can provide more optimal assignments than considering assignments within each layer separately. In some embodiments, generating a collapsed graph includes allocating residual capacity to each link of the collapsed graph; and allocating a cost for each link of the collapsed graph. In some embodiments, allocating a cost for each link includes allocating a higher cost to optical links than to IP links. In some cases, allocating the higher costs can discourage the creation of new links unless they are needed or are beneficial (e.g. creating new links improves the overall cost/efficiency). Some embodiments utilize a heuristic method for solving an optimization function for the placement of virtual nodes and links.

5. 发明授权

US6012152A Software fault management system 失效
标题翻译：软件故障管理系统
公开(公告)号：US6012152A
公开(公告)日：2000-01-04
申请号：US918100
申请日：1997-08-21
申请人： Samir Douik , Raouf Boutaba
发明人： Samir Douik , Raouf Boutaba
IPC分类号： G06F11/07 , H04M3/22 , H04M3/24 , H04W24/00 , G06F11/00
CPC分类号： H04W24/00 , G06F11/0709 , G06F11/079 , H04M3/2254 , H04M2207/18 , H04M3/242
摘要： A Software Fault Management (SFM) system for managing software faults in a managed mobile telecommunications network. The SFM system includes an Intelligent Management Information Base (I-MIB) comprising a Management Information Base (MIB) and a Knowledge Base (KB) having a functional model of the managed network and a trouble report/known faults (TR/KF) case base. The SFM system also includes an intelligent multi-agent portion having a plurality of agents which process the software faults utilizing the functional model from the I-MIB, case-based information, and other management information. The I-MIB and the intelligent multi-agent portion are compliant with Telecomunications Management Network (TMN) principles and framework. Fault management is both proactive and reactive. The SFM system is made independent of technology-specific implementations by representing the underlying switch design knowledge in a modular and changeable form which is then interpreted by the intelligent multi-agent portion. A clear separation is maintained between the generic procedural inference mechanisms and agents, and the specific and explicit models of the different network elements of a mobile telecommunications network.
摘要翻译：用于管理移动电信网络中的软件故障的软件故障管理（SFM）系统。 SFM系统包括智能管理信息库（I-MIB），包括管理信息库（MIB）和具有管理网络的功能模型的知识库（KB）以及故障报告/已知故障（TR / KF）情况基础。 SFM系统还包括具有多个代理的智能多代理部分，该代理使用来自I-MIB的功能模型，基于案例的信息和其他管理信息来处理软件故障。 I-MIB和智能多代理部分符合电信管理网络（TMN）原则和框架。故障管理既是主动的，也是反应性的。通过以模块化和可变形式表示底层交换机设计知识，SFM系统独立于技术特定的实现，然后由智能多代理部分解释。在通用程序推理机制和代理之间保持明确的分离，以及移动电信网络的不同网元的具体和明确模型。

6. 发明授权

US10951317B2 Multi-layer virtual network embedding 有权
公开(公告)号：US10951317B2
公开(公告)日：2021-03-16
申请号：US15815871
申请日：2017-11-17
申请人： Shihabur Rahman Chowdhury , Reaz Ahmed , Jeebak Mitra , Nashid Shahriar , Raouf Boutaba , Sara Ayoubi
发明人： Shihabur Rahman Chowdhury , Reaz Ahmed , Jeebak Mitra , Nashid Shahriar , Raouf Boutaba , Sara Ayoubi
IPC分类号： G06F13/00 , H04B10/27 , H04L12/24 , H04L12/715 , H04L12/911 , H04J14/02 , H04Q11/00
摘要： Some aspects and embodiments of the present invention provide effective mechanisms for provisioning virtual networks on communication networks. In particular some aspects and embodiments provide an effective mechanism for embedding a virtual network into a multi-layered substrate network which utilizes a different communication technology at each layer. One such example is an IP network overlaid over an optical network, such as an OTN network. Embodiments jointly determine the assignment of virtual nodes and virtual links. Assigning the nodes and links together can provide for a more optimal solution than assigning the nodes and the links separately. Some embodiments generate a collapsed graph which includes the optical network and the IP network in a single layer. Accordingly some embodiments jointly determine the assignment of virtual nodes and virtual links within such a collapsed graph, which can provide more optimal assignments than considering assignments within each layer separately. In some embodiments, generating a collapsed graph includes allocating residual capacity to each link of the collapsed graph; and allocating a cost for each link of the collapsed graph. In some embodiments, allocating a cost for each link includes allocating a higher cost to optical links than to IP links. In some cases, allocating the higher costs can discourage the creation of new links unless they are needed or are beneficial (e.g. creating new links improves the overall cost/efficiency). Some embodiments utilize a heuristic method for solving an optimization function for the placement of virtual nodes and links.

7. 发明申请

US20190245680A1 BLOCKCHAIN BASED SECURE NAMING AND UPDATE VERIFICATION 审中-公开
公开(公告)号：US20190245680A1
公开(公告)日：2019-08-08
申请号：US16270534
申请日：2019-02-07
申请人： Raouf Boutaba , Woojung Kim , Yuhao Dong
发明人： Raouf Boutaba , Woojung Kim , Yuhao Dong
IPC分类号： H04L9/06 , H04L9/00 , G06F8/65
CPC分类号： H04L9/0637 , G06F8/65 , H04L9/006 , H04L9/0643 , H04L2209/38
摘要： A secure update is provided from a server to an end-point device. The server registers digital information, such as a name or a software package, and a verifiable key, such as a cryptographic hash, derived from the digital information. A publicly accessible transaction log stores the verifiable key in a block and provides an identifier of the block to the server. An end-point device receives the digital information and the identifier, and computes a separate verifiable key. The end-point device retrieves the verifiable key from the block of the publicly accessible transaction log, and compares the retrieved verifiable key to the separate verifiable key to determine whether the digital information has been compromised.

8. 发明申请

US20180034696A1 SYSTEM AND METHOD FOR JOINT EMBEDDING AND BACKUP PROVISIONING IN VIRTUAL NETWORKS 审中-公开
公开(公告)号：US20180034696A1
公开(公告)日：2018-02-01
申请号：US15650354
申请日：2017-07-14
申请人： NASHID SHAHRIAR , AIMAL KHAN , REAZ AHMED , JEEBAK MITRA , SHIHABUR RAHMAN CHOWDHURY , RAOUF BOUTABA
发明人： NASHID SHAHRIAR , AIMAL KHAN , REAZ AHMED , JEEBAK MITRA , SHIHABUR RAHMAN CHOWDHURY , RAOUF BOUTABA
IPC分类号： H04L12/24 , G06F9/455 , G06F17/11
CPC分类号： H04L41/0836 , G06F9/45558 , G06F17/11 , G06F2009/4557 , G06F2009/45595 , H04L41/0663 , H04L41/0896 , H04L41/12
摘要： Network Virtualization can be used to map a virtual network (VN) on a substrate network (SN) while accounting for possible substrate failures, known as the Survivable Virtual Network Embedding (SVNE) problem. The VN can be equipped with sufficient spare backup capacity to sustain the Quality of Service during substrate failures, and the resulting VN may be equipped accordingly. The present application discloses jointly optimizing spare backup capacity allocation and embedding a VN to provide full bandwidth in the presence of a single substrate link failure. A solution may be formulated as a Quadratic Integer Program that can be further transformed into an Integer Linear Program, or as a heuristic.

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