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1. 发明授权

US08223666B2 Method of constructing a forwarding database for a data communications network 有权
标题翻译：构建数据通信网络转发数据库的方法
公开(公告)号：US08223666B2
公开(公告)日：2012-07-17
申请号：US11211109
申请日：2005-08-23
申请人： Neil Alasdair James Jarvis , Crispin Nicholas Dent-Young , Alan J. Cheilek , Matthew James Collins , Christian Cassar , Jesper Skriver
发明人： Neil Alasdair James Jarvis , Crispin Nicholas Dent-Young , Alan J. Cheilek , Matthew James Collins , Christian Cassar , Jesper Skriver
IPC分类号： H04L12/28
CPC分类号： H04L45/54 , H04L45/02 , H04L45/7457
摘要： A method of constructing a forwarding database for a data communications network comprising a plurality of network components and supporting at least first and second topologies having one or more common network components is described. The forwarding database includes a plurality of entries providing forwarding information for data destined for a related network component. The method comprises the step, performed at a constructing network component, of deriving topology dependent forwarding information for data destined for a network component. The method further comprises the step of including the topology dependent forwarding information at the related forwarding database entry.
摘要翻译：描述了构建包括多个网络组件并且支持具有一个或多个公共网络组件的至少第一和第二拓扑的数据通信网络的转发数据库的方法。转发数据库包括多个条目，提供用于相关网络组件的数据的转发信息。该方法包括在构造网络组件处执行的针对网络组件的数据导出与拓扑相关的转发信息的步骤。该方法还包括在相关转发数据库条目处包括拓扑相关转发信息的步骤。

2. 发明授权

US07969995B2 Method and apparatus for constructing a forwarding database for a data communications network 有权
标题翻译：用于构建数据通信网络的转发数据库的方法和装置
公开(公告)号：US07969995B2
公开(公告)日：2011-06-28
申请号：US11211105
申请日：2005-08-23
申请人： Matthew James Collins , Neil Alasdair James Jarvis
发明人： Matthew James Collins , Neil Alasdair James Jarvis
IPC分类号： H04L12/28
CPC分类号： H04L45/54 , H04L45/02
摘要： A method of constructing a forwarding database for a data communications network comprising a plurality of network components and supporting at least first and second topologies having one or more common network components is described. The forwarding database includes at least first and second database structures having records including forwarding information for data destined for related network components in the respective topologies. Each database structure has a plurality of elements including a pointer to one of a succeeding element or a record including said forwarding information. The method comprises the step, performed at a constructing network component of identifying a network component common to the first and second topologies for which a record exists in the second database structure. The method further comprises the step of including a pointer from the related element in the first database structure to a corresponding element or record in the second database structure.
摘要翻译：描述了构建包括多个网络组件并且支持具有一个或多个公共网络组件的至少第一和第二拓扑的数据通信网络的转发数据库的方法。转发数据库至少包括具有记录的至少第一和第二数据库结构，包括用于相应拓扑中的相关网络组件的数据的转发信息。每个数据库结构具有多个元素，包括指向后续元素之一的指针或包括所述转发信息的记录。该方法包括以下步骤：在构建网络组件处执行识别在第二数据库结构中存在记录的第一和第二拓扑共同的网络组件。该方法还包括将来自第一数据库结构中的相关元素的指针包括到第二数据库结构中的相应元素或记录的步骤。

3. 发明授权

US5918040A Method for maintaining time synchronization between two processors in a network interface 失效
标题翻译：用于在网络接口中维护两个处理器之间的时间同步的方法
公开(公告)号：US5918040A
公开(公告)日：1999-06-29
申请号：US615813
申请日：1995-07-25
申请人： Neil Alasdair James Jarvis
发明人： Neil Alasdair James Jarvis
IPC分类号： G04G7/00 , H04J3/06 , H04L12/403 , H04L29/06 , G06F1/12
CPC分类号： G04G7/00 , H04J3/0667 , H04L29/06
摘要： A method for performing timer synchronization between a first processor having a first timer and a second processor having a second timer is presented. The first processor issues to the second processor a first timer value corresponding to the current value of the first timer and the second timer compares the first timer value with a second timer value corresponding to the current value of the second timer. If the second timer value is less than the first timer value, the second processor increments the second timer value to a new second timer value equal to the first timer value. If the second timer value is greater than the first timer value, the second processor issues to the first processors the second timer value and the first processor adjusts the first timer value to be equal to the second timer value.
摘要翻译：提出了一种用于在具有第一定时器的第一处理器和具有第二定时器的第二处理器之间执行定时器同步的方法。第一处理器向第二处理器发出与第一定时器的当前值相对应的第一定时器值，并且第二定时器将第一定时器值与对应于第二定时器的当前值的第二定时器值进行比较。如果第二定时器值小于第一定时器值，则第二处理器将第二定时器值递增到等于第一定时器值的新的第二定时器值。如果第二定时器值大于第一定时器值，则第二处理器向第一处理器发出第二定时器值，并且第一处理器将第一定时器值调整为等于第二定时器值。

4. 发明授权

US07414979B1 Method and apparatus for per session load balancing with improved load sharing in a packet switched network 有权
标题翻译：用于每个会话负载平衡的方法和装置，其具有改进的分组交换网络中的负载共享
公开(公告)号：US07414979B1
公开(公告)日：2008-08-19
申请号：US11441570
申请日：2006-05-26
申请人： Neil Alasdair James Jarvis
发明人： Neil Alasdair James Jarvis
IPC分类号： H04J1/16 , H04L12/56
CPC分类号： H04L47/10 , H04L45/00 , H04L45/125 , H04L47/125 , H04L67/1002 , H04L67/1019 , H04L67/1023 , H04L67/14
摘要： Systems and methods for implementing per-session load balancing of packets that increase traffic sharing and reduce systematic unequal distribution of traffic are provided by virtue of one embodiment of the present invention. A method for operating a selected router is provided that uses a load balancing algorithm that is configured to de-correlate distribution of sessions among the active paths at the selected router relative to distributions of sessions of other algorithms at other routers of said network. Packets arriving at the selected router are assigned to an output path according to the load balancing algorithm. A method of routing a packet received at a router having an associated identifier is provided. The source address and a destination address of the packet are obtained. An output path is selected according to a load balancing algorithm that uses the associated identifier, the source address, and the destination address as inputs, and the packet is routed to the output interface associated with the selected output path. A look-up table that is configured using the identifier can be used in selecting the output path. A router storing an identifier assigned to the router is provided; the identifier is used in determining per-session routing of incoming packets.
摘要翻译：凭借本发明的一个实施例，提供了用于实现增加通信量共享并减少系统不平等分配的分组的每会话负载平衡的系统和方法。提供了一种用于操作所选择的路由器的方法，其使用负载平衡算法，所述负载平衡算法被配置为相对于所述网络的其他路由器处的所述其他算法的会话的分布，在所选择的路由器的所述活动路径之间去分离会话的分布。到达所选路由器的报文根据负载分担算法分配给输出路径。提供一种路由在具有相关联的标识符的路由器处接收到的分组的方法。获取数据包的源地址和目的地址。根据使用相关联的标识符，源地址和目的地地址作为输入的负载平衡算法来选择输出路径，并且该分组被路由到与选择的输出路径相关联的输出接口。使用标识符配置的查找表可用于选择输出路径。提供存储分配给路由器的标识符的路由器; 该标识符用于确定进入分组的每会话路由。

5. 发明授权

US5752255A Dynamic non-coherent cache memory resizing mechanism 失效
标题翻译：动态非相干缓存大小调整机制
公开(公告)号：US5752255A
公开(公告)日：1998-05-12
申请号：US794565
申请日：1997-02-03
申请人： Neil Alasdair James Jarvis
发明人： Neil Alasdair James Jarvis
IPC分类号： G06F12/08 , H04L29/12 , G06F12/00
CPC分类号： H04L29/12018 , G06F12/0802 , G06F12/0864 , G06F12/0893 , H04L29/12009 , H04L61/10 , G06F12/0806
摘要： A dynamic cache resizing mechanism permitting a non-coherent cache memory to be altered in size during the operation thereof. A cache utilization monitoring system determines whether the cache size is optimised for a particular application and environment, and if it is not, modifies a selection process to resize the cache address space. The non-coherent property of the cache is utilized to permit the change of selection process during use, and the choice of selection process may be effected to take into account the proportion of live cache entries which will remain accessible after resizing, and the proportional change in size of the cache during a resizing operation.
摘要翻译：动态高速缓存调整机制允许非相干高速缓冲存储器在其操作期间被改变大小。缓存利用率监视系统确定高速缓存大小是否针对特定应用和环境进行了优化，如果不是，则修改选择过程来调整高速缓存地址空间的大小。高速缓存的非相干属性被用于允许在使用期间改变选择过程，并且可以实现选择过程的选择以考虑在调整大小之后将保持可访问的实时高速缓存条目的比例，以及比例变化在调整大小操作期间缓存的大小。

6. 发明授权

US07233575B1 Method and apparatus for per session load balancing with improved load sharing in a packet switched network 有权
标题翻译：用于每个会话负载平衡的方法和装置，其具有改进的分组交换网络中的负载共享
公开(公告)号：US07233575B1
公开(公告)日：2007-06-19
申请号：US11242517
申请日：2005-10-03
申请人： Neil Alasdair James Jarvis
发明人： Neil Alasdair James Jarvis
IPC分类号： H04J1/16
CPC分类号： H04L47/10 , H04L45/00 , H04L45/125 , H04L47/125 , H04L67/1002 , H04L67/1019 , H04L67/1023 , H04L67/14
摘要： Systems and methods for implementing per-session load balancing of packets that increase traffic sharing and reduce systematic unequal distribution of traffic are provided by virtue of one embodiment of the present invention. A method for operating a selected router is provided that uses a load balancing algorithm that is configured to de-correlate distribution of sessions among the active paths at the selected router relative to distributions of sessions of other algorithms at other routers of said network. Packets arriving at the selected router are assigned to an output path according to the load balancing algorithm. A method of routing a packet received at a router having an associated identifier is provided. The source address and a destination address of the packet are obtained. An output path is selected according to a load balancing algorithm that uses the associated identifier, the source address, and the destination address as inputs, and the packet is routed to the output interface associated with the selected output path. A look-up table that is configured using the identifier can be used in selecting the output path. A router storing an identifier assigned to the router is provided; the identifier is used in determining per-session routing of incoming packets.
摘要翻译：凭借本发明的一个实施例，提供了用于实现增加通信量共享并减少系统不平等分配的分组的每会话负载平衡的系统和方法。提供了一种用于操作所选择的路由器的方法，其使用负载平衡算法，所述负载平衡算法被配置为相对于所述网络的其他路由器处的所述其他算法的会话的分布，在所选择的路由器的所述活动路径之间去分离会话的分布。到达所选路由器的报文根据负载分担算法分配给输出路径。提供一种路由在具有相关联的标识符的路由器处接收到的分组的方法。获取数据包的源地址和目的地址。根据使用相关联的标识符，源地址和目的地地址作为输入的负载平衡算法来选择输出路径，并且该分组被路由到与选择的输出路径相关联的输出接口。使用标识符配置的查找表可用于选择输出路径。提供存储分配给路由器的标识符的路由器; 该标识符用于确定进入分组的每会话路由。

7. 发明授权

US06980521B1 Method and apparatus for per session load balancing with improved load sharing in a packet switched network 有权
标题翻译：用于每个会话负载平衡的方法和装置，其具有改进的分组交换网络中的负载共享
公开(公告)号：US06980521B1
公开(公告)日：2005-12-27
申请号：US09727098
申请日：2000-11-29
申请人： Neil Alasdair James Jarvis
发明人： Neil Alasdair James Jarvis
IPC分类号： H04J1/16 , H04L12/56 , H04L29/08
CPC分类号： H04L47/10 , H04L45/00 , H04L45/125 , H04L47/125 , H04L67/1002 , H04L67/1019 , H04L67/1023 , H04L67/14
摘要： Systems and methods for implementing per-session load balancing of packets that increase traffic sharing and reduce systematic unequal distribution of traffic are provided by virtue of one embodiment of the present invention. A method for operating a selected router is provided that uses a load balancing algorithm that is configured to de-correlate distribution of sessions among the active paths at the selected router relative to distributions of sessions of other algorithms at other routers of said network. Packets arriving at the selected router are assigned to an output path according to the load balancing algorithm. A method of routing a packet received at a router having an associated identifier is provided. The source address and a destination address of the packet are obtained. An output path is selected according to a load balancing algorithm that uses the associated identifier, the source address, and the destination address as inputs, and the packet is routed to the output interface associated with the selected output path. A look-up table that is configured using the identifier can be used in selecting the output path. A router storing an identifier assigned to the router is provided; the identifier is used in determining per-session routing of incoming packets.
摘要翻译：凭借本发明的一个实施例，提供了用于实现增加通信量共享并减少系统不平等分配的分组的每会话负载平衡的系统和方法。提供了一种用于操作所选择的路由器的方法，其使用负载平衡算法，所述负载平衡算法被配置为相对于所述网络的其他路由器处的所述其他算法的会话的分布，在所选择的路由器的所述活动路径之间去分离会话的分布。到达所选路由器的报文根据负载分担算法分配给输出路径。提供一种路由在具有相关联的标识符的路由器处接收到的分组的方法。获取数据包的源地址和目的地址。根据使用相关联的标识符，源地址和目的地地址作为输入的负载平衡算法来选择输出路径，并且该分组被路由到与所选输出路径相关联的输出接口。使用标识符配置的查找表可用于选择输出路径。提供存储分配给路由器的标识符的路由器; 该标识符用于确定进入分组的每会话路由。

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