专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US08830868B2 Keep alive message overhead reduction for communication networks 有权
标题翻译：保持通信网络的活动消息开销降低
公开(公告)号：US08830868B2
公开(公告)日：2014-09-09
申请号：US13473359
申请日：2012-05-16
申请人： Ramanuja Vedantham , Kumaran Vijayasankar , Ram Krishnan
发明人： Ramanuja Vedantham , Kumaran Vijayasankar , Ram Krishnan
IPC分类号： H04L12/28
CPC分类号： H04W76/25 , H04W84/18
摘要： A method of communications in a network having plurality of nodes including a base node (BN) and a plurality of levels (i) each including at least one service node (SN). The number (Ni(t)) of SNs registered in each of a plurality of i are determined. The current Keep Alive timer out (KA_TO) value for a KA timer at the BN is dynamically adjusted to an updated KA_TO value based on Ni(t) and i. Dynamically adjusting KA_TO values reduces the KA message overhead the network compared to known KA_TO value implementations.
摘要翻译：一种具有多个节点的网络中的通信方法，所述多个节点包括基本节点（BN）和多个级别（i），每个级别包括至少一个服务节点（SN）。确定登记在多个i中的每一个中的SN的数量（Ni（t））。基于Ni（t）和i，动态调整BN处的KA定时器的当前Keep Alive定时器输出（KA_TO）值为更新的KA_TO值。与已知的KA_TO值实现相比，动态调整KA_TO值可以降低网络的KA消息开销。

2. 发明授权

US08160074B1 Optimal reading of forwarding database from hardware 有权
标题翻译：从硬件优化转发数据库
公开(公告)号：US08160074B1
公开(公告)日：2012-04-17
申请号：US12415996
申请日：2009-03-31
申请人： Ram Krishnan
发明人： Ram Krishnan
IPC分类号： H04L12/56 , G06F17/30 , G06F15/00
CPC分类号： H04L45/021 , Y10S707/99933
摘要： Forwarding database entries in a memory of a network device are scanned. Each port on the network device maintains a forwarding database in the memory. A filtered list of forwarding database entries is automatically sent to a management module.
摘要翻译：扫描网络设备存储器中的数据库条目转发。网络设备上的每个端口在存储器中维护一个转发数据库。过滤的转发数据库条目列表将自动发送到管理模块。

3. 发明授权

US07908431B2 Method of performing table lookup operation with table index that exceeds cam key size 有权
标题翻译：使用超过凸轮键大小的表索引执行表查找操作的方法
公开(公告)号：US07908431B2
公开(公告)日：2011-03-15
申请号：US12489034
申请日：2009-06-22
申请人： Ram Krishnan
发明人： Ram Krishnan
IPC分类号： G06F12/00
CPC分类号： H04L45/00 , G06F17/30982 , H04L45/54 , H04L45/7453 , H04L45/7457
摘要： In a packet switching device or system, such as a router, switch, combination router/switch, or component thereof, a method of and system for performing a table lookup operation using a lookup table index that exceeds a CAM key size is provided. Multiple CAM accesses are performed, each using a CAM key derived from a subset of lookup table index, resulting in one or more CAM entries. One or more matching table entries are derived from the one or more CAM entries resulting from the multiple CAM accesses.
摘要翻译：在诸如路由器，交换机，组合路由器/交换机或其组件的分组交换设备或系统中，提供了使用超过CAM密钥大小的查找表索引来执行表查找操作的方法和系统。执行多个CAM访问，每个使用从查找表索引的子集导出的CAM密钥，导致一个或多个CAM条目。从多个CAM访问得到的一个或多个CAM条目导出一个或多个匹配表条目。

4. 发明申请

US20100024045A1 METHODS AND APPARATUSES FOR PRIVACY IN LOCATION-AWARE SYSTEMS 审中-公开
标题翻译：位置识别系统隐私的方法和设备
公开(公告)号：US20100024045A1
公开(公告)日：2010-01-28
申请号：US11772196
申请日：2007-06-30
申请人： Manoj R. Sastry , Michael J. Covington , Ram Krishnan
发明人： Manoj R. Sastry , Michael J. Covington , Ram Krishnan
IPC分类号： G06F21/24
CPC分类号： G06F21/6245 , G06F2221/2111 , H04W4/029 , H04W12/00503 , H04W12/02
摘要： In one embodiment a method is disclosed for accepting and enforcing user selectable privacy settings for context awareness including location awareness data on a computing platform. The method may identify a requestor, assign a privacy setting to the requester then detect a request for location information from the requestor. The method may transmit location information to the requester based on the user selected privacy setting. The user selected privacy setting may have a granularity assigned to each requestor based on a privacy preference and the method may entirely block the location information from being disclosed or the method may modify the granularity/accuracy of the location information based on the privacy setting to report context of an appropriate level of granularity according to the privacy setting configured by the user. Other embodiments are also disclosed.
摘要翻译：在一个实施例中，公开了用于接受和执行用户可选隐私设置的方法，用于包括计算平台上的位置感知数据的上下文感知。该方法可以标识请求者，向请求者分配隐私设置，然后从请求者检测位置信息的请求。该方法可以基于用户选择的隐私设置将位置信息发送到请求者。用户选择的隐私设置可以基于隐私偏好而具有分配给每个请求者的粒度，并且该方法可以完全阻止位置信息被公开，或者该方法可以基于隐私设置来报告位置信息的粒度/准确性以报告根据用户配置的隐私设置，具有适当的粒度级别的上下文。还公开了其他实施例。

5. 发明申请

US20090252030A1 REDUCING TRAFFIC LOSS IN AN EAPS SYSTEM 有权
标题翻译：减少EAPS系统中的交通损失
公开(公告)号：US20090252030A1
公开(公告)日：2009-10-08
申请号：US12098286
申请日：2008-04-04
申请人： Prakash Kashyap , Ram Krishnan , Joydeep Chakravarti , David K. Parker
发明人： Prakash Kashyap , Ram Krishnan , Joydeep Chakravarti , David K. Parker
IPC分类号： H04L12/26
CPC分类号： H04L45/48 , H04L12/437 , H04L12/4641 , H04L41/0659 , H04L45/02 , H04L45/18 , H04L45/28
摘要： A ring network with an automatic protection switching domain includes a control VLAN and at least one data VLAN. A master node in the ring is connected to at least one transit node. Each node in the ring network is linked to an adjacent node by a primary port or a secondary port. The master node receives notification of a fault via the control VLAN, the fault indicating a failed link between adjacent nodes. In response, the master node unblocks its secondary port to traffic on the data VLAN(s). The forwarding database entries on the master node and on the transit node(s) are flushed. Data traffic is flooded to the ring network until forwarding database entries on the master node and on the transit node(s) have been reestablished.
摘要翻译：具有自动保护交换域的环网包括控制VLAN和至少一个数据VLAN。环中的主节点连接至少一个传输节点。环网中的每个节点都通过主端口或辅助端口链接到相邻节点。主节点通过控制VLAN接收故障通知，故障指示相邻节点之间的故障链路。作为响应，主节点解除其辅助端口到数据VLAN的流量。主节点和传输节点上的转发数据库条目被刷新。数据流量被洪泛到环网，直到在主节点和传输节点上转发数据库条目已被重新建立。

6. 发明授权

US08159936B2 Network convergence in response to a topology change 有权
标题翻译：响应拓扑变化的网络融合
公开(公告)号：US08159936B2
公开(公告)日：2012-04-17
申请号：US12416001
申请日：2009-03-31
申请人： Ram Krishnan , Prakash Kashyap
发明人： Ram Krishnan , Prakash Kashyap
IPC分类号： H04L12/26
CPC分类号： H04L41/12 , H04L12/437 , H04L12/4641 , H04L45/02 , H04L45/025
摘要： In response to a network topology change, packets are initially flooded on ports of a network device. In addition, a bit array is cleared in response to the topology change. Each bit in the bit array is associated with a particular forwarding entry on the network device. In connection with the clearing of the bit array, the flooding of packets on ports of the network device is made conditional, reducing failover time of the network.
摘要翻译：响应于网络拓扑变化，分组最初在网络设备的端口上泛洪。另外，响应于拓扑变化，一个位阵列被清除。位阵列中的每个位与网络设备上的特定转发条目相关联。与清除位阵列相关联，网络设备端口上的数据包泛滥是有条件的，减少了网络的故障切换时间。

7. 发明授权

US07936764B1 Method for optimizing IP route table size through IP route aggregation 有权
标题翻译：通过IP路由聚合优化IP路由表大小的方法
公开(公告)号：US07936764B1
公开(公告)日：2011-05-03
申请号：US12100246
申请日：2008-04-09
申请人： Ram Krishnan
发明人： Ram Krishnan
IPC分类号： H04L12/28
CPC分类号： H04L45/54
摘要： A subset of route entries having the same next hop is identified in a route table. The subset of entries falls within a range of prefixes. Gaps in the subset of route entries that prevent the subset from being contiguous are identified. The gaps in the subset are filled with route entries to make the subset contiguous. All of the route entries in the contiguous subset of route entries have the same next hop, thus the contiguous subset can be aggregated into a single route entry in a forwarding table. For each gap-filling entry added to the route table, an additional route entry having forwarding priority over the gap-filling entry is added to the forwarding table.
摘要翻译：具有相同下一跳的路由条目的子集在路由表中被识别。条目的子集落在前缀的范围内。识别防止子集连续的路由条目子集中的间隙。子集中的间隙填充路由条目以使子集连续。路由条目的连续子集中的所有路由条目具有相同的下一跳，因此连续子集可以聚合到转发表中的单个路由条目中。对于添加到路由表的每个间隙填充条目，具有比间隙填充条目具有转发优先级的附加路由条目被添加到转发表。

8. 发明授权

US07912091B1 Traffic forwarding in a traffic-engineered link aggregation group 有权
标题翻译：流量工程链路聚合组中的流量转发
公开(公告)号：US07912091B1
公开(公告)日：2011-03-22
申请号：US12406790
申请日：2009-03-18
申请人： Ram Krishnan , Prakash Kashyap
发明人： Ram Krishnan , Prakash Kashyap
IPC分类号： H04L12/56
CPC分类号： H04L45/22 , H04L45/02 , H04L45/245 , Y02D50/30
摘要： A data packet is received at a network switch. The packet has a destination address that is reached via a Link Aggregation group on a virtual local area network (VLAN). A forwarding database lookup is performed to determine a Link Aggregation port reference number for the data packet on the VLAN. A Link Aggregation port table is then searched to determine the primary Link Aggregation port and a backup Link Aggregation port for forwarding the packet. A port array for ports in the Link Aggregation group is searched to determine if the primary Link Aggregation port is valid. If the primary port is valid, then the packet is forwarded on the primary Link Aggregation port. If the primary port is not valid, then the packet is forwarded on the backup Link Aggregation port.
摘要翻译：在网络交换机处接收数据包。分组具有通过虚拟局域网（VLAN）上的链路聚合组到达的目的地址。执行转发数据库查找，以确定VLAN上的数据包的链路聚合端口参考号。然后搜索链路聚合端口表，以确定主链路聚合端口和转发数据包的备份链路聚合端口。搜索“链路聚合”组中端口的端口阵列，以确定主链路聚合端口是否有效。如果主端口有效，则在主链路聚合端口上转发报文。如果主端口无效，则报文在备份链路聚合端口上转发。

9. 发明申请

US20090003317A1 METHOD AND MECHANISM FOR PORT REDIRECTS IN A NETWORK SWITCH 有权
标题翻译：网络交换机端口重定向的方法与机制
公开(公告)号：US20090003317A1
公开(公告)日：2009-01-01
申请号：US11772061
申请日：2007-06-29
申请人： Rahul S. Kasralikar , Ram Krishnan
发明人： Rahul S. Kasralikar , Ram Krishnan
IPC分类号： H04L12/56
CPC分类号： H04L63/1408 , H04L49/25 , H04L63/1416
摘要： A method for selectively redirecting a data packet to a port on a switching device which is associated with a corresponding network service. In one embodiment, the data packet is redirected to an intrusion prevention service (IPS) for security analysis of the data packet. In another embodiment, the switching device performs a data link layer redirecting of the data packet based at least in part on whether the data packet is to be flooded from the switching device.
摘要翻译：一种用于选择性地将数据分组重定向到与相应网络服务相关联的交换设备上的端口的方法。在一个实施例中，将数据分组重定向到用于数据分组的安全分析的入侵防御服务（IPS）。在另一个实施例中，交换设备至少部分地基于数据分组是否要从交换设备充斥来执行数据分组的数据链路层重定向。

10. 发明授权

US07181567B2 Hitless restart of access control module 有权
标题翻译：无限次重启访问控制模块
公开(公告)号：US07181567B2
公开(公告)日：2007-02-20
申请号：US10454103
申请日：2003-06-04
申请人： Ram Krishnan
发明人： Ram Krishnan
IPC分类号： G06F12/00
CPC分类号： H04L49/3009 , H04L45/7453 , H04L49/557
摘要： Performing selective update of a content addressable memory (CAM) following restart of an access control module (ACM) at a network node involves maintaining a restart CAM entry database in shared memory. When the ACM restarts, instead of reentering all CAM entries into the CAM or reading the contents of the CAM, the ACM only updates the CAM with the entries that were modified while the ACM was offline, prior to restart.
摘要翻译：在网络节点重新启动访问控制模块（ACM）之后，执行内容可寻址存储器（CAM）的选择性更新涉及将重启CAM入口数据库保存在共享存储器中。当ACM重新启动时，ACM在重新启动之前不再将所有CAM条目重新进入CAM或读取CAM的内容，而是在ACM离线时，使用修改的条目更新CAM。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式