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11. 发明授权

US08295285B2 Method and apparatus for communication of data packets between local networks 有权
标题翻译：用于在本地网络之间通信数据包的方法和装置
公开(公告)号：US08295285B2
公开(公告)日：2012-10-23
申请号：US12922974
申请日：2009-03-20
申请人： Johan Kolhi , Christian Gotare , Tomas Thyni , Annikki Welin
发明人： Johan Kolhi , Christian Gotare , Tomas Thyni , Annikki Welin
IPC分类号： H04L12/28
CPC分类号： H04L29/06 , H04L12/4604 , H04L12/4633 , H04L12/4641 , H04L29/12066 , H04L29/12301 , H04L29/12424 , H04L29/12509 , H04L61/1511 , H04L61/2076 , H04L61/2535 , H04L61/2567 , H04L61/2589 , H04L61/2592 , H04L63/0272
摘要： Method and arrangement for obtaining unambiguous addressing for data packets communicated between devices in two different local networks using private IP address spaces. A VPN tunnel is initially established between gateways in the two local networks and an internal IP address space is defined in each network for devices in the opposite network, not overlapping with an internal IP address space used for its own devices. When the gateway of one network receives a data packet from a device in the opposite network, the packet's header is modified by changing the destination and source addresses, which belong to address spaces valid in the opposite network, into addresses belonging to address spaces valid in the present network.
摘要翻译：用于在使用专用IP地址空间的两个不同本地网络中的设备之间传送的数据分组获得明确寻址的方法和装置。最初在两个本地网络中的网关之间建立VPN通道，并且在每个网络中为相对网络中的设备定义一个内部IP地址空间，而不与其自己的设备使用的内部IP地址空间重叠。当一个网络的网关从相对网络中的设备接收到数据分组时，通过将属于相对网络中有效的地址空间的目的地址和源地址改变为属于有效的地址空间的地址来修改分组报头目前的网络。

12. 发明申请

US20120002550A1 GLOBAL PROVISIONING OF ZERO-BANDWIDTH TRAFFIC ENGINEERING LABEL SWITCHED PATHS 有权
标题翻译：零带宽交通工程标签开关板的全球规定
公开(公告)号：US20120002550A1
公开(公告)日：2012-01-05
申请号：US13254871
申请日：2009-05-14
申请人： Filippo Cugini , Annikki Welin , Luca Valcarenghi , Piero Castoldi , Francesco Paolucci
发明人： Filippo Cugini , Annikki Welin , Luca Valcarenghi , Piero Castoldi , Francesco Paolucci
IPC分类号： H04L12/26
CPC分类号： H04L45/00 , H04L45/12 , H04L45/24 , H04L45/302 , H04L45/38 , H04L45/50 , H04L45/507
摘要： A method of load balancing zero-bandwidth Traffic Engineering Label Switching Paths (0-bw TE LSPs) in a communication network having a plurality of network nodes and a plurality of network links connecting the nodes. The method may be implemented in a centralized Path Computation Element (PCE) or in an ingress router. Each equal cost path from a source node to a destination node is identified from network topology information. A probability of selecting each equal cost shortest path is determined using an iterative Global Load balancing Algorithm (GLA) and each 0-bw TE LSP is provisioned with a specific probability such that the 0-bw TE LSPs are uniformly distributed over all network links.
摘要翻译：在具有多个网络节点的通信网络和连接节点的多个网络链路的负载平衡零带宽流量工程标签交换路径（0-bw TE LSP）的方法。该方法可以在集中式路径计算元件（PCE）或入口路由器中实现。从源节点到目的地节点的每个相等的成本路径是从网络拓扑信息中识别出来的。使用迭代全局负载平衡算法（GLA）确定选择每个相等成本最短路径的概率，并且以特定概率提供每个0-bw TE LSP，使得0-bw TE LSP均匀地分布在所有网络链路上。

13. 发明授权

US08576720B2 Global provisioning of zero-bandwidth traffic engineering label switched paths 有权
标题翻译：零带宽流量工程标签交换路径的全局配置
公开(公告)号：US08576720B2
公开(公告)日：2013-11-05
申请号：US13254871
申请日：2009-05-14
申请人： Filippo Cugini , Annikki Welin , Luca Valcarenghi , Piero Castoldi , Francesco Paolucci
发明人： Filippo Cugini , Annikki Welin , Luca Valcarenghi , Piero Castoldi , Francesco Paolucci
IPC分类号： H04W4/00 , H04J3/16 , H04J3/22
CPC分类号： H04L45/00 , H04L45/12 , H04L45/24 , H04L45/302 , H04L45/38 , H04L45/50 , H04L45/507
摘要： A method of load balancing zero-bandwidth Traffic Engineering Label Switching Paths (0-bw TE LSPs) in a communication network having a plurality of network nodes and a plurality of network links connecting the nodes. The method may be implemented in a centralized Path Computation Element (PCE) or in an ingress router. Each equal cost path from a source node to a destination node is identified from network topology information. A probability of selecting each equal cost shortest path is determined using an iterative Global Load balancing Algorithm (GLA) and each 0-bw TE LSP is provisioned with a specific probability such that the 0-bw TE LSPs are uniformly distributed over all network links.
摘要翻译：在具有多个网络节点的通信网络和连接节点的多个网络链路的负载平衡零带宽流量工程标签交换路径（0-bw TE LSP）的方法。该方法可以在集中式路径计算元件（PCE）或入口路由器中实现。从源节点到目的地节点的每个相等的成本路径是从网络拓扑信息中识别出来的。使用迭代全局负载平衡算法（GLA）确定选择每个相等成本最短路径的概率，并且以特定概率提供每个0-bw TE LSP，使得0-bw TE LSP均匀地分布在所有网络链路上。

14. 发明授权

US08559448B2 Method and apparatus for communication of data packets between local networks 有权
标题翻译：用于在本地网络之间通信数据包的方法和装置
公开(公告)号：US08559448B2
公开(公告)日：2013-10-15
申请号：US12922946
申请日：2009-03-20
申请人： Johan Kolhi , Christian Gotare , Tomas Thyni , Annikki Welin
发明人： Johan Kolhi , Christian Gotare , Tomas Thyni , Annikki Welin
IPC分类号： H04L12/56 , G06F15/16 , H04L12/28 , H04L29/06
CPC分类号： H04L29/06 , H04L12/4604 , H04L12/4633 , H04L12/4641 , H04L29/12066 , H04L29/12301 , H04L29/12424 , H04L29/12509 , H04L61/1511 , H04L61/2076 , H04L61/2535 , H04L61/2567 , H04L61/2589 , H04L61/2592 , H04L63/0272
摘要： Method and arrangement for communication of data packets between a first device (D1) in a first local network (A) and a second device (D2) in a second local network (B). where private IP addresses are used for devices present in the first and second local networks. A first gateway (100) of the first network updates (1:1) a local name server record (100a) with a domain name and an IP address of a second gateway (102) of the second network, each gateway having a local DNS function. When an outgoing DNS request is received (1:2) from the first device referring to a hostname of the second device, the IP address of the second gateway is determined (1:3) from the local name server record based on a domain name in the hostname. A DNS request is then sent (1:4) to the second gateway using the determined IP address, to obtain a current private IP address of the second device in a DNS response (1:5) from the second gateway. A DNS response is then forwarded (1:8) to the first device, referring to the current private IP address of the second device.
摘要翻译：用于在第一本地网络（A）中的第一设备（D1）与第二本地网络（B）中的第二设备（D2）之间的数据分组通信的方法和装置，其中专用IP地址用于存在于第一和第二个本地网络。第一网络的第一网关（100）更新（1：1）具有第二网络的第二网关（102）的域名和IP地址的本地名称服务器记录（100a），每个网关具有本地DNS 功能。当从第一设备接收（1：2）出局的DNS请求时，引用第二设备的主机名，根据域名从本地名称服务器记录确定（1：3）第二网关的IP地址在主机名。然后使用所确定的IP地址将DNS请求发送到第二网关（1：4），以从第二网关获得DNS响应（1:5）中的第二设备的当前专用IP地址。然后，将DNS响应转发（1：8）到第一个设备，参考第二个设备的当前专用IP地址。

15. 发明申请

US20120300676A1 METHOD OF MERGING DISTRIBUTED HASH TABLE (DHT) RINGS IN HETEROGENEOUS NETWORK DOMAINS 有权
标题翻译：在异构网络域中合并分布式表（DHT）环的方法
公开(公告)号：US20120300676A1
公开(公告)日：2012-11-29
申请号：US13488907
申请日：2012-06-05
申请人： Annikki Welin , Victor Souza
发明人： Annikki Welin , Victor Souza
IPC分类号： H04L12/42
CPC分类号： H04L67/104 , H04L29/12028 , H04L29/12349 , H04L45/02 , H04L45/04 , H04L45/123 , H04L45/124 , H04L45/64 , H04L45/70 , H04L61/103 , H04L61/2507 , H04L67/1065
摘要： A method of merging Distributed Hash Table (DHT) rings in heterogeneous network domains, where each domain includes a DHT ring. Upon determining that a node is common to first and second DHT rings on the same hierarchical level and having at least one Overlay Router in common, a link is started between a node in the first DHT ring and a node in the second DHT ring by establishing an indirect link through the common node. An indirect link is created between the first and second DHT rings, and virtual links are created to DHT rings positioned higher in the DHT ring hierarchy until all the DHT rings are merged into a single logical ring.
摘要翻译：在异构网络域中合并分布式散列表（DHT）环的方法，其中每个域包括DHT环。在确定节点对于相同层级上的第一和第二DHT环并且具有共同的至少一个覆盖路由器是公共的时，通过建立在第一DHT环中的节点和第二DHT环中的节点之间的链路来启动链路通过公共节点的间接链接。在第一和第二DHT环之间创建间接链接，并且将虚拟链路创建为位于DHT环层级中较高的DHT环，直到所有DHT环合并为单个逻辑环。

16. 发明授权

US08233489B2 System, method, and router for routing data packets in an overlay network 有权
标题翻译：系统，方法和路由器，用于在覆盖网络中路由数据包
公开(公告)号：US08233489B2
公开(公告)日：2012-07-31
申请号：US12516470
申请日：2007-11-23
申请人： Annikki Welin , Victor Souza
发明人： Annikki Welin , Victor Souza
IPC分类号： H04L12/28
CPC分类号： H04L67/104 , H04L29/12028 , H04L29/12349 , H04L45/02 , H04L45/04 , H04L45/123 , H04L45/124 , H04L45/64 , H04L45/70 , H04L61/103 , H04L61/2507 , H04L67/1065
摘要： A system, method, and router for routing data packets in an overlay network built over heterogeneous layer-3 domains. A link state overlay routing protocol enables an overlay router to route data packets based on flat identifiers and decides the best path to a destination taking into account a number of parameters such as round trip time. Scalability is provided by making routing decisions based on a network identifier rather than a single end-node identifier.
摘要翻译：一种系统，方法和路由器，用于在构建在异构层3域上的覆盖网络中路由数据包。链路状态覆盖路由协议使得覆盖路由器能够基于平坦标识符路由数据分组，并且考虑到诸如往返时间的诸多参数来决定到目的地的最佳路径。通过基于网络标识符而不是单个端节点标识符进行路由决定来提供可扩展性。

17. 发明申请

US20120163390A1 METHOD AND APPARATUS FOR PATH COMPUTATION ELEMENT AND ROUTING CONTROLLER COOPERATION 有权
标题翻译：路径计算元件与路由控制器合作的方法与装置
公开(公告)号：US20120163390A1
公开(公告)日：2012-06-28
申请号：US13394220
申请日：2010-08-23
申请人： Paola Iovanna , Giulio Bottari , Annikki Welin , Francesco Paolucci , Filippo Cugini , Piero Castoldi
发明人： Paola Iovanna , Giulio Bottari , Annikki Welin , Francesco Paolucci , Filippo Cugini , Piero Castoldi
IPC分类号： H04L12/56
CPC分类号： H04Q11/0062 , H04L45/00 , H04L45/10 , H04L45/121 , H04L45/123 , H04L45/42 , H04L45/62 , H04Q2011/0073
摘要： A system, method, and node for a Routing Controller (RC) to obtain from a Path Computation Element (PCE), network resource path metrics across a plurality of domains in a communication network in which each domain includes a plurality of Border Nodes (BNs). The RC sends to the PCE, a first message requesting a first path computation between each pair of BNs. The first message contains a maximum metric-value that a path computation must not exceed for a Path Computation Client (PCC) to consider the path computation acceptable. The RC then sends a second message requesting the PCE to compute a subsequent path computation for each BN pair for which the first path computation did not exceed the maximum metric-value. The second message contains a minimum metric-value that a path metric must exceed for the PCC to consider the path metric acceptable. The RC then receives the computed subsequent path computation.
摘要翻译：路由控制器（RC）的系统，方法和节点，用于从路径计算元素（PCE）获得在通信网络中的多个域中的网络资源路径度量，其中每个域包括多个边界节点（BN））。 RC向PCE发送请求在每对BN之间进行第一路径计算的第一消息。第一条消息包含一个路径计算不能超过路径计算客户端（PCC）的最大度量值，以考虑可接受的路径计算。然后，RC然后发送请求PCE的第二消息，以计算第一路径计算未超过最大度量值的每个BN对的后续路径计算。第二条消息包含路由度量值必须超过PCC以考虑可接受的路径度量的最小度量值。 RC然后接收计算的后续路径计算。

18. 发明申请

US20110026537A1 Method and Apparatus for Communication of Data Packets between Local Networks 有权
标题翻译：本地网络之间数据包通信的方法和装置
公开(公告)号：US20110026537A1
公开(公告)日：2011-02-03
申请号：US12922946
申请日：2009-03-20
申请人： Johan Kolhi , Christian Gotare , Tomas Thyni , Annikki Welin
发明人： Johan Kolhi , Christian Gotare , Tomas Thyni , Annikki Welin
IPC分类号： H04L12/56
CPC分类号： H04L29/06 , H04L12/4604 , H04L12/4633 , H04L12/4641 , H04L29/12066 , H04L29/12301 , H04L29/12424 , H04L29/12509 , H04L61/1511 , H04L61/2076 , H04L61/2535 , H04L61/2567 , H04L61/2589 , H04L61/2592 , H04L63/0272
摘要： Method and arrangement for communication of data packets between a first device (D1) in a first local network (A) and a second device (D2) in a second local network (B). where private IP addresses are used for devices present in the first and second local networks. A first gateway (100) of the first network updates (1:1) a local name server record (100a) with a domain name and an IP address of a second gateway (102) of the second network, each gateway having a local DNS function. When an outgoing DNS request is received (1:2) from the first device referring to a hostname of the second device, the IP address of the second gateway is determined (1:3) from the local name server record based on a domain name in the hostname. A DNS request is then sent (1:4) to the second gateway using the determined IP address, to obtain a current private IP address of the second device in a DNS response (1:5) from the second gateway. A DNS response is then forwarded (1:8) to the first device, referring to the current private IP address of the second device.
摘要翻译：用于在第一本地网络（A）中的第一设备（D1）与第二本地网络（B）中的第二设备（D2）之间的数据分组通信的方法和装置，其中专用IP地址用于存在于第一和第二个本地网络。第一网络的第一网关（100）更新（1：1）具有第二网络的第二网关（102）的域名和IP地址的本地名称服务器记录（100a），每个网关具有本地DNS 功能。当从第一设备接收（1：2）出局的DNS请求时，引用第二设备的主机名，根据域名从本地名称服务器记录确定（1：3）第二网关的IP地址在主机名。然后使用所确定的IP地址将DNS请求发送到第二网关（1：4），以从第二网关获得DNS响应（1:5）中的第二设备的当前专用IP地址。然后，将DNS响应转发（1：8）到第一个设备，参考第二个设备的当前专用IP地址。

19. 发明申请

US20150146531A1 Adaptive MTU size optimization using IGP 审中-公开
标题翻译：使用IGP的自适应MTU大小优化
公开(公告)号：US20150146531A1
公开(公告)日：2015-05-28
申请号：US14409951
申请日：2012-06-21
申请人： Annikki Welin , Tomas Thyni , Johan Kölhi , Lars Hallström
发明人： Annikki Welin , Tomas Thyni , Johan Kölhi , Lars Hallström
IPC分类号： H04L12/805 , H04L12/741
CPC分类号： H04L47/365 , H04L45/02 , H04L45/74 , H04L47/36
摘要： The present invention relates to methods and routing and/or switching devices for determining a path maximum transmission unit MTUP(n) size for transmission paths between edge nodes in a data communications network and for updating routing tables associated with the routing and/or switching devices in said edge nodes, which are linked together with link interfaces L(i) constituting transmission paths P(n) for data packet transmission, each link interface L(i) having a link interface maximum transmission unit MTUL(i) size. The methods involve the acquisition of a link interface maximum transmission unit MTUL(i) size for a link interface L(i), and the updating the routing table by calculating the path maximum transmission unit MTUP(n) size for each destination that involves the link interface L(i) for the acquired link interface maximum transmission unit MTUL(i) size. New link-state protocols for distributing the link interface maximum transmission unit MTUL(i) size is also provided.
摘要翻译：本发明涉及用于确定数据通信网络中的边缘节点之间的传输路径的路径最大传输单元MTUP（n）大小并用于更新与路由和/或交换设备相关联的路由表的方法和路由和/或交换设备在与构成用于数据分组传输的传输路径P（n）的链路接口L（i）链接在一起的所述边缘节点中，每个链路接口L（i）具有链路接口最大传输单元MTUL（i）大小。所述方法涉及获取链路接口L（i）的链路接口最大传输单元MTUL（i）的大小，并且通过计算涉及到每个目的地的每个目的地的路径最大传输单元MTUP（n）的大小来更新路由表用于获取的链路接口最大传输单元MTUL（i）大小的链路接口L（i）。还提供了用于分发链路接口最大传输单元MTUL（i）大小的新的链路状态协议。

20. 发明授权

US08913525B2 Method of merging distributed hash table (DHT) rings in heterogeneous network domains 有权
标题翻译：在异构网络域中合并分布式哈希表（DHT）环的方法
公开(公告)号：US08913525B2
公开(公告)日：2014-12-16
申请号：US13488907
申请日：2012-06-05
申请人： Annikki Welin , Victor Souza
发明人： Annikki Welin , Victor Souza
IPC分类号： H04L12/28 , H04L29/08 , H04L12/721 , H04L12/751 , H04L29/12 , H04L12/715
CPC分类号： H04L67/104 , H04L29/12028 , H04L29/12349 , H04L45/02 , H04L45/04 , H04L45/123 , H04L45/124 , H04L45/64 , H04L45/70 , H04L61/103 , H04L61/2507 , H04L67/1065
摘要： A method of merging Distributed Hash Table (DHT) rings in heterogeneous network domains, where each domain includes a DHT ring. Upon determining that a node is common to first and second DHT rings on the same hierarchical level and having at least one Overlay Router in common, a link is started between a node in the first DHT ring and a node in the second DHT ring by establishing an indirect link through the common node. An indirect link is created between the first and second DHT rings, and virtual links are created to DHT rings positioned higher in the DHT ring hierarchy until all the DHT rings are merged into a single logical ring.
摘要翻译：在异构网络域中合并分布式散列表（DHT）环的方法，其中每个域包括DHT环。在确定节点对于相同层级上的第一和第二DHT环并且具有共同的至少一个覆盖路由器是公共的时，通过建立在第一DHT环中的节点和第二DHT环中的节点之间的链路来启动链路通过公共节点的间接链接。在第一和第二DHT环之间创建间接链接，并且将虚拟链路创建为位于DHT环层级中较高的DHT环，直到所有DHT环合并为单个逻辑环。

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