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1. 发明授权

US06807174B2 Method and apparatus for transporting DS-X signals through a packet network 有权
标题翻译：通过分组网络传输DS-X信号的方法和装置
公开(公告)号：US06807174B2
公开(公告)日：2004-10-19
申请号：US10117740
申请日：2002-04-05
申请人： Greg M. Bernstein , Premal Desai , Jeffrey T. Gullicksen
发明人： Greg M. Bernstein , Premal Desai , Jeffrey T. Gullicksen
IPC分类号： H04L1256
CPC分类号： H04Q11/0478 , H04L12/64 , H04L2012/5621 , H04L2012/5663
摘要： A method and apparatus for efficiently transporting DS-X traffic in packet form over an ATM or other packet network. Specifically, virtual connection or slot provisioning and/or cell concentration techniques are used to compact the amount of DS-X traffic broadcast between communications system devices such as the access mux and the communications switch and spare bandwidth. In provisioning, a configured DS-X loading of an end node supporting DS-X traffic is ascertained. In turn, a minimum number of virtual connections for bearing packetized DS-X traffic are established, either at communications system configuration or as needed. In concentration processing, a dynamic association between the virtual connections and the DS-X traffic is established, typically on a per frame basis. Only those digital channels entering the node within a given time frame which actually bear DS-X traffic will be assigned a slot within packet. Concentration may be augmented by provisioning to further reduce bandwidth requirements. In other disclosed aspects, permanent virtual channels or PNNI soft permanent virtual connections may be used for the virtual connections where ATM is chosen as the transport protocol.
摘要翻译：一种用于通过ATM或其他分组网络以分组形式有效地传送DS-X业务的方法和装置。具体地，使用虚拟连接或时隙供应和/或小区集中技术来压缩诸如接入复用器和通信交换机的通信系统设备之间的DS-X业务广播量以及备用带宽。在配置中，确定支持DS-X流量的端点节点的配置的DS-X加载。反过来，在通信系统配置或根据需要建立用于承载分组化DS-X流量的最小数量的虚拟连接。在集中处理中，建立虚拟连接与DS-X流量之间的动态关联，通常在每帧的基础上。只有在给定时间段内进入节点的那些实际承载DS-X流量的数字信道才会在分组内分配一个时隙。可以通过配置来增加集中度，以进一步减少带宽需求。在其他公开的方面中，永久虚拟信道或PNNI软永久虚拟连接可以用于选择ATM作为传输协议的虚拟连接。

2. 发明授权

US06404765B1 Method and apparatus for transporting DS-X signals through a packet network 失效
公开(公告)号：US06404765B1
公开(公告)日：2002-06-11
申请号：US09073658
申请日：1998-05-06
申请人： Greg M. Bernstein , Premal Desai , Jeffrey T. Gullicksen
发明人： Greg M. Bernstein , Premal Desai , Jeffrey T. Gullicksen
IPC分类号： H04L1256
CPC分类号： H04Q11/0478 , H04L12/64 , H04L2012/5621 , H04L2012/5663
摘要： A method and apparatus for efficiently transporting DS-X traffic in packet form over an ATM or other packet network. Specifically, virtual connection or slot provisioning and/or cell concentration techniques are used to compact the amount of DS-X traffic broadcast between communications system devices such as the access mux and the communications switch and spare bandwidth. In provisioning, a configured DS-X loading of an end node supporting DS-X traffic is ascertained. In turn, a minimum number of virtual connections for bearing packetized DS-X traffic are established, either at communications system configuration or as needed. In concentration processing, a dynamic association between the virtual connections and the DS-X traffic is established, typically on a per frame basis. Only those digital channels entering the node within a given time frame which actually bear DS-X traffic will be assigned a slot within packet. Concentration may be augmented by provisioning to further reduce bandwidth requirements. In other disclosed aspects, permanent virtual channels or PNNI soft permanent virtual connections may be used for the virtual connections where ATM is chosen as the transport protocol.

3. 发明授权

US06370114B1 Apparatus and method for optimizing congestion control information in a multi-protocol network 失效
标题翻译：用于优化多协议网络中的拥塞控制信息的装置和方法
公开(公告)号：US06370114B1
公开(公告)日：2002-04-09
申请号：US09001666
申请日：1997-12-31
申请人： Jeffrey T. Gullicksen , Greg M. Bernstein , Gurpreet S. Chhabra
发明人： Jeffrey T. Gullicksen , Greg M. Bernstein , Gurpreet S. Chhabra
IPC分类号： G01R3108
CPC分类号： H04L12/5602 , H04L2012/5635 , H04L2012/5667 , H04Q11/0478
摘要： The benefits of Transport Control Protocol (TCP) over Available Bit Rate (ABR) Service of an Asynchronous Transfer Mode (ATM) network is extended to the entire TCP connection by intercepting and modifying TCP congestion control information in accordance with resource information associated with the TCP connection. An algorithm calculates a new advertised window size based on various network resource parameters, such as ABR. The advertised window is adjusted if the newly calculated window size is smaller than the advertised window size. By adjusting the TCP window, the normal extreme fluctuations of the TCP window are avoided.
摘要翻译：通过根据与TCP相关联的资源信息拦截和修改TCP拥塞控制信息，传输控制协议（TCP）与异步传输模式（ATM）网络的可用比特率（ABR）服务的优点扩展到整个TCP连接连接。算法基于各种网络资源参数（如ABR）计算新的广告窗口大小。如果新计算的窗口大小小于通告的窗口大小，则调整广告窗口。通过调整TCP窗口，可以避免TCP窗口的正常极端波动。

4. 发明授权

US5999529A Method and apparatus for interworking ATM adaptation layer formats 失效
标题翻译： ATM适配层格式互通的方法和装置
公开(公告)号：US5999529A
公开(公告)日：1999-12-07
申请号：US931649
申请日：1997-09-16
申请人： Greg M. Bernstein , Jeffrey T. Gullicksen
发明人： Greg M. Bernstein , Jeffrey T. Gullicksen
IPC分类号： H04L12/56 , H04Q11/04
CPC分类号： H04Q11/0478 , H04L2012/5652
摘要： A plurality of voice-over-ATM modules operate in parallel and each processes at least one type of AAL. Interface circuitry and contention circuitry allow the parallel modules to interact. The result is an interworking between ATM streams and different types of equipment.
摘要翻译：多个ATM语音模块并行操作，并且每个处理至少一种类型的AAL。接口电路和竞争电路允许并行模块进行交互。结果是ATM流和不同类型的设备之间的互通。

5. 发明授权

US06597662B1 Apparatus and method for optimizing max-min fair rate control in ABR sessions 失效
标题翻译：用于优化ABR会话中最大最小公平率控制的装置和方法
公开(公告)号：US06597662B1
公开(公告)日：2003-07-22
申请号：US09076844
申请日：1998-05-13
申请人： Anurag Kumar , Santosh P. Abraham , Greg M. Bernstein , Jeffrey T. Gullicksen , Gurpreet S. Chhabra
发明人： Anurag Kumar , Santosh P. Abraham , Greg M. Bernstein , Jeffrey T. Gullicksen , Gurpreet S. Chhabra
IPC分类号： H04L1256
CPC分类号： H04L12/5602 , H04L49/3081 , H04L2012/5635 , H04L2012/5682
摘要： Fairness is provided among network sessions contending for available bit rate (ABR) service in an asynchronous transfer mode network by determining congestion information on a per port basis. ABR cells are monitored to determine which rate information per outgoing port based on ABR cells leaving a switch. Using the ABR per port rate, the available capacity, and the input rate to output queues, a link congestion parameter (LCP) is determined. Resource Management (RM) cells traveling through the switch are monitored to determine whether the new LCP is lower than the explicit rate (ER) field in RM cell. If the new LCP is lower, the new LCP is stuffed into the RM cell. When the sender receives the LCP value, the sender output rate is adjusted based on the LCP. Because LCP is determined based on per port traffic flow, fairness is provided among session competing for available ABR capacity.
摘要翻译：通过在每个端口的基础上确定拥塞信息，在异步传输模式网络中针对可用比特率（ABR）服务的网络会话中提供公平性。监控ABR单元以基于离开交换机的ABR单元确定每个输出端口的哪些速率信息。使用每个端口速率的ABR，可用容量和输出队列的输入速率，确定链路拥塞参数（LCP）。监视通过交换机行进的资源管理（RM）单元以确定新的LCP是否低于RM单元中的显式速率（ER）字段。如果新的LCP较低，则将新的LCP填充到RM单元中。发送方收到LCP值后，根据LCP调整发送方输出速率。由于LCP是根据每个端口流量确定的，所以在会话竞争中获得可用的ABR容量之间提供公平性。

6. 发明授权

US07310333B1 Switching control mechanism for supporting reconfiguaration without invoking a rearrangement algorithm 有权
标题翻译：用于支持重新配置而不调用重排算法的切换控制机制
公开(公告)号：US07310333B1
公开(公告)日：2007-12-18
申请号：US10608492
申请日：2003-06-30
申请人： Richard Conklin , Jeffrey T. Gullicksen
发明人： Richard Conklin , Jeffrey T. Gullicksen
IPC分类号： H01Q11/00
CPC分类号： H04Q3/68 , H04L49/65 , H04Q2213/13076 , H04Q2213/13141 , H04Q2213/13146 , H04Q2213/13167
摘要： A method of modeling or constructing a switch element uses an ingress stage with input sorters and input routers; an egress stage with output routers and output sorters; and a center stage interconnecting the ingress and egress stages. Routers are partitioned such that each partition is assigned to only one data line. A switch controller and method may use such modeling to advantage. For example, during initial configuration of the switch element, a subset of connections are excluded from a control algorithm that initially configures the switch with the subset being subjected to post processing. Furthermore, a fast rearrangement of the switch rearranges only part of the existing connections and then adds/deletes cross connects as necessary to complete the connections.
摘要翻译：建模或构建开关元件的方法使用具有输入分拣机和输入路由器的入口级; 具有输出路由器和输出分拣机的出口级; 以及连接入口和出口级的中心台。路由器被分区，使得每个分区只分配给一条数据线。开关控制器和方法可以有利地使用这种建模。例如，在开关元件的初始配置期间，将连接的子集从控制算法中排除，该控制算法最初配置该子集经过后处理的交换机。此外，交换机的快速重新布置仅重新布置现有连接的一部分，然后根据需要添加/删除交叉连接以完成连接。

7. 发明授权

US06343075B1 Rearrangeable switch having a non-power of two number of physical center stages 有权
标题翻译：具有两个物理中心级的非功率的可重新布置的开关
公开(公告)号：US06343075B1
公开(公告)日：2002-01-29
申请号：US09427299
申请日：1999-10-26
申请人： Daniel E. Klausmeier , Jeffrey T. Gullicksen
发明人： Daniel E. Klausmeier , Jeffrey T. Gullicksen
IPC分类号： H04L1250
CPC分类号： H04Q3/68 , H04Q2213/1302 , H04Q2213/1304 , H04Q2213/13046 , H04Q2213/13166 , H04Q2213/13292 , H04Q2213/1334
摘要： A switch is provided that includes three stages. The first stages has a plurality of switch circuits. The second stage has a plurality of switch circuits equal to N, where N is any integer other than a power of 2 and where the switch circuits can be logically configured into a logical configuration of a power of 2. The third stages includes a plurality of switch circuits.
摘要翻译：提供了包括三个阶段的开关。第一级具有多个开关电路。第二级具有等于N的多个开关电路，其中N是除2的幂之外的任何整数，并且其中开关电路可以逻辑地配置成2的功率的逻辑配置。第三级包括多个开关电路。

8. 发明授权

US6157644A Method and apparatus for accelerating OSI layer 3 routers 失效
标题翻译：用于加速OSI第3层路由器的方法和装置
公开(公告)号：US6157644A
公开(公告)日：2000-12-05
申请号：US946431
申请日：1997-10-07
申请人： Gregory M. Bernstein , Alan Chapman , Philip Edholm , Jeffrey T. Gullicksen , Kenneth Gullicksen
发明人： Gregory M. Bernstein , Alan Chapman , Philip Edholm , Jeffrey T. Gullicksen , Kenneth Gullicksen
IPC分类号： H04L12/56 , H04L12/28
CPC分类号： H04L45/00
摘要： Methods and apparatus for accelerating a router in a communications network are described. In one embodiment, a router accelerator includes a forwarding table for associatively storing a destination address and a next hop address. If a destination address of a packet matches a destination address in the forwarding table, then logic forwards the packet to a next hop. A router may be coupled to at least one network port through the router accelerator. In another approach, the network includes at least one host and at least one router. The host has at least one routing table for associatively storing a second-level destination address, a second-level next hop address and a first-level next hop address. A router accelerator includes redirect logic for storing the second-level destination address in a second-level next hop address entry in the at least one host routing table. This causes the host to request a first-level next hop address corresponding to the second-level destination address. An accelerator table responds to the host's request with the bound first-level next hop address. In another approach employing host routing tables, a router accelerator includes request logic for requesting from the router a second-level next hop address in response to the first-level next hop address. Redirect logic stores the second-level next hop address in a second-level next hop address entry in the at least one host routing table. This causes the host to request a first-level next hop address corresponding to the second-level next hop address.
摘要翻译：描述了用于加速通信网络中的路由器的方法和装置。在一个实施例中，路由器加速器包括用于关联地存储目的地地址和下一跳地址的转发表。如果报文的目的地址与转发表中的目的地址匹配，则逻辑转发报文到下一跳。路由器可以通过路由器加速器耦合到至少一个网络端口。在另一种方法中，网络包括至少一个主机和至少一个路由器。主机具有至少一个用于关联地存储二级目的地址，二级下一跳地址和第一级下一跳地址的路由表。路由器加速器包括用于将所述第二级目的地地址存储在所述至少一个主机路由表中的第二级下一跳地址条目中的重定向逻辑。这使得主机请求与二级目的地地址对应的第一级下一跳地址。加速器表使用绑定的第一级下一跳地址来响应主机的请求。在采用主机路由表的另一种方法中，路由器加速器包括响应于第一级下一跳地址从路由器请求二级下一跳地址的请求逻辑。重定向逻辑将二级下一跳地址存储在至少一个主机路由表中的第二级下一跳地址条目中。这使得主机请求与二级下一跳地址对应的第一级下一跳地址。

9. 发明授权

US07020135B2 Rearrangeable switch having a non-power of two number of physical center stages 有权
公开(公告)号：US07020135B2
公开(公告)日：2006-03-28
申请号：US10023971
申请日：2001-12-17
申请人： Daniel E. Klausmeier , Jeffrey T. Gullicksen
发明人： Daniel E. Klausmeier , Jeffrey T. Gullicksen
IPC分类号： H04L12/50
CPC分类号： H04Q3/68 , H04Q2213/1302 , H04Q2213/1304 , H04Q2213/13046 , H04Q2213/13166 , H04Q2213/13292 , H04Q2213/1334
摘要： A switch is provided that includes three stages. The first stages has a plurality of switch circuits. The second stage has a plurality of switch circuits equal to N, where N is any integer other than a power of 2 and where the switch circuits can be logically configured into a logical configuration of a power of 2. The third stages includes a plurality of switch circuits.

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