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1. 发明授权

US08644325B2 Method and apparatus for path computation element and routing controller cooperation 有权
标题翻译：用于路径计算元素和路由控制器协作的方法和装置
公开(公告)号：US08644325B2
公开(公告)日：2014-02-04
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。

2. 发明申请

US20120102228A1 INTER-DOMAIN ADVERTISEMENTS IN MULTI-DOMAIN NETWORKS 审中-公开
标题翻译：多域网络中的域间广告
公开(公告)号：US20120102228A1
公开(公告)日：2012-04-26
申请号：US13256764
申请日：2009-04-28
申请人： Filippo Cugini , Piero Castoldi , Annikki Welin
发明人： Filippo Cugini , Piero Castoldi , Annikki Welin
IPC分类号： G06F15/173
CPC分类号： H04L45/12 , H04L45/04 , H04L45/22 , H04L45/42 , H04L45/44 , H04L45/50
摘要： In a multi-domain network each domain, or Autonomous System (AS), has a route calculation entity (PCE A) which is responsible for computing paths between domains on behalf of clients. The route calculation entity (PCE A) sends advertisement messages to a route calculation entity (PCE B) in another domain. The advertisement message carries at least one of: inter-domain resource information and aggregated intra-domain information, such as simplified topology information or cumulative traffic engineering (TE) metrics. The inter-domain resource information can be inter-domain route or reachability information which is normally discarded by a routing protocol such as the Border Gateway Protocol (BGP) and can include inter-domain Traffic Engineering (TE) information such as reservable bandwidth.
摘要翻译：在多域网络中，每个域或自治系统（AS）具有路由计算实体（PCE A），其负责代表客户端的域之间的计算路径。路由计算实体（PCE A）向另一个域中的路由计算实体（PCE B）发送广播消息。广告消息中携带以下至少一种：域间资源信息和聚合域内信息，如简化拓扑信息或累积流量工程（TE）度量。域间资源信息可以是通常由边界网关协议（BGP）等路由协议丢弃的域间路由或可达性信息，并且可以包括诸如可预留带宽之类的域间流量工程（TE）信息。

3. 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。

4. 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。

5. 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。

6. 发明授权

US09654540B2 Load balancing among network servers 有权
公开(公告)号：US09654540B2
公开(公告)日：2017-05-16
申请号：US13877221
申请日：2010-09-30
申请人： Tomas Thyni , Christian Gotare , Johan Kolhi , Annikki Welin
发明人： Tomas Thyni , Christian Gotare , Johan Kolhi , Annikki Welin
IPC分类号： G06F15/16 , H04L29/08 , H04L29/12 , H04L29/06
CPC分类号： H04L67/00 , H04L29/12358 , H04L29/12415 , H04L61/251 , H04L61/2532 , H04L67/1002 , H04L69/22
摘要： Apparatus for performing load balancing among network servers connected to an internal IPv6 network. The apparatus comprises a first interface coupled to an external IPv4 or IPv6 network for receiving packets sent across the external network and an IP packet creator coupled to said first interface. This IP packet creator is configured, for each received packet at that interface, to select a network server to be allocated to the packet or identify an already allocated network server. The IP packet creator is further configured to create a corresponding IPv6 packet for transmission over said internal network to the selected or identified network server. The apparatus further comprises a second interface coupled to said internal IPv6 network for transmitting created IPv6 packets across the internal network towards respective selected or identified network servers.

7. 发明申请

US20140129735A1 METHOD AND NODE FOR SUPPORTING ROUTING VIA INTER AS PATH 审中-公开
标题翻译：通过路径支持路由的方法和节点
公开(公告)号：US20140129735A1
公开(公告)日：2014-05-08
申请号：US14128317
申请日：2011-06-23
申请人： Tomas Thyni , Mats Forsman , Annikki Welin
发明人： Tomas Thyni , Mats Forsman , Annikki Welin
IPC分类号： H04L12/721
CPC分类号： H04L45/14 , H04L45/04 , H04L45/122 , H04L45/124
摘要： The present invention relates to a method in a border node of an Autonomous System (AS) and a border node comprising a border route control unit. The border node is configured to route data packets from a source node in an originating Autonomous System to a destination node in a terminating Autonomous System, possibly via intermediate autonomous systems. The method includes determining one inter autonomous system path or multiple inter AS paths constituting a route or multiple routes, respectively, between the originating autonomous system and terminating autonomous system based on at least an energy consumption metrics of transit paths through an own autonomous system and other autonomous systems and a total energy consumption metric for each possible inter autonomous system path. The border node is adapted to store the route or the multiple routes in a border gateway routing table.
摘要翻译：本发明涉及自治系统（AS）的边界节点中的方法和包括边界路径控制单元的边界节点。边界节点被配置为可能经由中间自治系统将数据分组从始发自治系统中的源节点路由到终止自治系统中的目的地节点。该方法包括基于至少一个通过自己的自治系统和其他的传输路径的能量消耗度量来确定构成始发自治系统和终止自治系统之间的路由或多个路由的一个自治系统路径或多个AS间路径自治系统和每个可能的自治系统路径的总能耗指标。边界节点适用于将路由或多条路由存储在边界网关路由表中。

8. 发明授权

US08595531B2 Energy efficient ethernet network nodes and methods for use in ethernet network nodes 有权
标题翻译：节能以太网网络节点和用于以太网网络节点的方法
公开(公告)号：US08595531B2
公开(公告)日：2013-11-26
申请号：US13258070
申请日：2009-03-31
申请人： Tomas Thyni , Christian Gotare , Johan Kölhi , Annikki Welin
发明人： Tomas Thyni , Christian Gotare , Johan Kölhi , Annikki Welin
IPC分类号： G06F1/00
CPC分类号： H04L12/12 , G06F1/3209 , G06F1/325 , H04L12/40039 , Y02D50/20 , Y02D50/40 , Y02D50/42
摘要： The present invention relates to a transmitting node for transmitting data to a receiving node over at least one Ethernet link comprising a data communication unit arranged to transmit data over the at least one Ethernet link, and a control unit arranged to control the data communication unit so as to maintain the at least one Ethernet link in a link active state, characterized in that the control unit is arranged to operate in a first IDLE state in which IDLE data packets are transmitted periodically through the data communication unit over the at least one Ethernet link according to at least one predetermined IDLE data packet timing interval, and in said first IDLE state, power down at least one component comprised in the data communication unit in between the periodic transmissions of IDLE data packets. The present invention further relates to a method for use in a transmitting node, a receiving node, a network node and a system.
摘要翻译：本发明涉及一种用于通过至少一个以太网链路向接收节点发送数据的发送节点，所述至少一个以太网链路包括被布置成通过所述至少一个以太网链路传输数据的数据通信单元，以及控制单元，其被配置为控制数据通信单元以便将所述至少一个以太网链路保持在链路活动状态，其特征在于，所述控制单元被布置成在第一空闲状态下操作，其中，所述至少一个以太网链路通过所述数据通信单元周期性地发送空闲数据分组根据至少一个预定的空闲数据分组定时间隔，并且在所述第一空闲状态中，在所述数据通信单元中包含的至少一个组件在所述空闲数据分组的周期性传输之间断电。本发明还涉及在发送节点，接收节点，网络节点和系统中使用的方法。

9. 发明申请

US20130185410A1 LOAD BALANCING AMONG NETWORK SERVERS 有权
标题翻译：网络服务器负载均衡
公开(公告)号：US20130185410A1
公开(公告)日：2013-07-18
申请号：US13877221
申请日：2010-09-30
申请人： Tomas Thyni , Christian Gotare , Johan Kolhi , Annikki Welin
发明人： Tomas Thyni , Christian Gotare , Johan Kolhi , Annikki Welin
IPC分类号： H04L29/08
CPC分类号： H04L67/00 , H04L29/12358 , H04L29/12415 , H04L61/251 , H04L61/2532 , H04L67/1002 , H04L69/22
摘要： Apparatus for performing load balancing among network servers connected to an internal IPv6 network. The apparatus comprises a first interface coupled to an external IPv4 or IPv6 network for receiving packets sent across the external network and an IP packet creator coupled to said first interface. This IP packet creator is configured, for each received packet at that interface, to select a network server to be allocated to the packet or identify an already allocated network server. The IP packet creator is further configured to create a corresponding IPv6 packet for transmission over said internal network to the selected or identified network server. The apparatus further comprises a second interface coupled to said internal IPv6 network for transmitting created IPv6 packets across the internal network towards respective selected or identified network servers.
摘要翻译：用于在连接到内部IPv6网络的网络服务器之间执行负载平衡的装置。该设备包括耦合到外部IPv4或IPv6网络的第一接口，用于接收经由外部网络发送的分组以及耦合到所述第一接口的IP分组创建器。为该接口的每个接收到的分组配置该IP分组创建者，以选择要分配给分组的网络服务器或识别已经分配的网络服务器。 IP分组创建器还被配置为创建相应的IPv6分组，以通过所述内部网络传输到所选择或识别的网络服务器。所述设备还包括耦合到所述内部IPv6网络的第二接口，用于经由所述内部网络向所选择或识别的网络服务器发送所创建的IPv6分组。

10. 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。

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