公开(公告)号：US06907115B2

公开(公告)日：2005-06-14

申请号：US10447925

申请日：2003-05-30

申请人： Biju Joseph ,  Adiseshu Hari ,  Mehmet Karaul ,  Sneha Kasera ,  Robert A. Latimer ,  Catherine R. Loader ,  Jose Carlos Pinheiro

发明人： Biju Joseph ,  Adiseshu Hari ,  Mehmet Karaul ,  Sneha Kasera ,  Robert A. Latimer ,  Catherine R. Loader ,  Jose Carlos Pinheiro

IPC分类号： H04L12/56 ,  H04M3/36 ,  H04M15/00 ,  H04M7/00

CPC分类号： H04M15/73 ,  H04L47/115 ,  H04M3/36 ,  H04M3/365 ,  H04M3/367 ,  H04M15/00 ,  H04M15/58 ,  H04M15/70 ,  H04M15/8016 ,  H04M2215/0188 ,  H04M2215/70 ,  H04M2215/7072 ,  H04M2215/7414

摘要： Overload conditions affecting a processor of a network switch or the like are substantially eliminated, and the processing of traffic is gradually allowed to increase, by inserting, and then monitoring one or more probes which are placed into a queue of the processor. During a given measurement interval, if the number of probes exceeds a threshold then an overload condition exists. This condition is subsequently reduced using “multiplicative decrease” techniques. Conversely, if the threshold is not exceeded and there is little or no chance an overload condition can quickly reappear, traffic is allowed to once again be processed gradually using “additive increase” techniques.

摘要翻译： 基本上消除了影响网络交换机等的处理器的过载条件，并且通过插入并监视放置在处理器的队列中的一个或多个探测器逐渐允许流量的处理增加。 在给定的测量间隔期间，如果探头数量超过阈值，则存在过载条件。 随后使用“乘法减少”技术减少该条件。 相反，如果不超过阈值，并且很少或根本没有机会可以快速重新出现过载条件，则可以使用“加法增加”技术逐渐处理业务。

公开(公告)号：US07729252B2

公开(公告)日：2010-06-01

申请号：US10448038

申请日：2003-05-30

申请人： Adiseshu Hari ,  Mehmet Karaul ,  Sneha Kasera ,  Thoma F. La Porta ,  Catherine R. Loader ,  Jose Carlos Pinheiro ,  Robert A. Latimer

发明人： Adiseshu Hari ,  Mehmet Karaul ,  Sneha Kasera ,  Thoma F. La Porta ,  Catherine R. Loader ,  Jose Carlos Pinheiro ,  Robert A. Latimer

IPC分类号： H04J3/14

CPC分类号： H04L47/15 ,  H04L47/70 ,  H04L47/745 ,  H04L47/822 ,  H04L47/823 ,  H04L47/826 ,  H04L49/505

摘要： Techniques are provided for controlling overload conditions using two values; an acceptance rate fraction allowed value and an occupancy fraction allowed value. The inventive techniques allow quick response to the sudden onset of overload conditions, are robust enough to be used when processor speeds are increased and compare favorably to known techniques.

摘要翻译： 提供了使用两个值控制过载条件的技术; 接受率分数允许值和占用分数允许值。 本发明的技术允许对突发性过载状况的快速响应，足够坚固以在处理器速度增加时被使用并且与已知技术相比较。

公开(公告)号：US07085260B2

公开(公告)日：2006-08-01

申请号：US09935118

申请日：2001-08-22

申请人： Mehmet Karaul ,  Thomas F. Laporta ,  Jonathan Lennox ,  Kazutaka Murakami

发明人： Mehmet Karaul ,  Thomas F. Laporta ,  Jonathan Lennox ,  Kazutaka Murakami

IPC分类号： H04L12/66

CPC分类号： H04W88/16 ,  H04L29/06 ,  H04L69/327 ,  H04M2207/18 ,  H04M2207/20

摘要： The invention provides a telecommunication system that allows communication between a circuit-based wireless telephony network and a packet-based Internet telephony network without requiring access to the Public Switched Telephone Network. The system includes a circuit-based wireless telephony network providing wireless access to the system, a packet-based Internet telephony network providing Internet telephony access to the system, and a base station gateway controller for providing an interface between the wireless telephony network and the Internet telephony network. The invention further provides methods for facilitating communication between a first device, the first device being a packet-based Internet telephony network based device, and a second device, the second device being a circuit-based wireless telephony network based device, by facilitating connection of a call from the first device to the second device, without requiring access to the public switched telephone network.

公开(公告)号：US06175869B1

公开(公告)日：2001-01-16

申请号：US09057274

申请日：1998-04-08

申请人： Sudhir Raman Ahuja ,  Mehmet Karaul ,  Ioannis A. Korilis

发明人： Sudhir Raman Ahuja ,  Mehmet Karaul ,  Ioannis A. Korilis

IPC分类号： G06F15173

CPC分类号： H04L67/1008 ,  H04L67/1002 ,  H04L67/1019

摘要： A client request directed to a web site or other service hosted by a distributed pool of servers is processed by a client agent associated with the client. The client agent intercepts the client request and routes it to a particular one of the servers in the pool. The client agent bases its routing decision on address information regarding the individual servers of the pool and performance data regarding processing of previous client requests directed to the service. The address information may be retrieved by the client agent from a response to an initial client request directed to the service. The performance data may include response times for servicing previous client requests directed to the service, and the client agent may route the client request such that an average response time of multiple requests to the service is minimized. It may also make use of a probabilistic routing strategy which ensures that each of the servers in the pool receives at least one client request, such that accurate performance data may be maintained for all of the servers. A pricing manager associated with the server pool may be used to establish discount factors or other pricing information for each of the servers in the pool. This pricing information is communicated to the client agents and used in their routing decisions, so as to ensure that otherwise non-cooperating client agents will route their requests in a manner consistent with a target operating point established by the service provider.

摘要翻译： 由分配的服务器池托管的网站或其他服务的客户端请求由与客户端相关联的客户端代理处理。 客户端代理拦截客户端请求并将其路由到池中特定的一个服务器。 客户端代理基于关于池的各个服务器的地址信息的路由决定以及关于针对服务的先前客户端请求的处理的性能数据。 地址信息可以由客户端代理从针对服务的初始客户端请求的响应中检索。 性能数据可以包括用于服务针对服务的先前客户端请求的响应时间，并且客户端代理可以路由客户端请求，使得针对服务的多个请求的平均响应时间被最小化。 它还可以使用概率路由策略，其确保池中的每个服务器接收至少一个客户端请求，使得可以为所有服务器维护准确的性能数据。 与服务器池相关联的定价管理器可用于为池中的每个服务器建立折扣因子或其他定价信息。 该定价信息被传送给客户代理并在其路由决策中使用，以便确保否则不协作的客户端代理将以与由服务提供商建立的目标操作点一致的方式路由它们的请求。