公开(公告)号：US20050113109A1

公开(公告)日：2005-05-26

申请号：US10723814

申请日：2003-11-25

申请人： Farid Adrangi ,  Ranjit Narjala ,  Michael Andrews

发明人： Farid Adrangi ,  Ranjit Narjala ,  Michael Andrews

IPC分类号： H04L12/28 ,  H04L12/56 ,  H04L29/06 ,  H04W36/18 ,  H04W60/00 ,  H04W64/00 ,  H04W80/04 ,  G06F15/16 ,  H04Q7/20

CPC分类号： H04L63/0272 ,  H04L63/20 ,  H04W36/18 ,  H04W60/00 ,  H04W64/00 ,  H04W80/04

摘要： A method, apparatus and system enable mobile nodes to determine their location and register with an appropriate home agent to provide seamless roaming between disparate networks. More specifically, according to one embodiment, a mobile node may include a policy engine, which may select one of a plurality of location modules. The mobile node may apply the selected location module to determine its location with respect to a corporate demilitarized zone (“DMZ”). If the mobile node determines that it is located on an intranet behind the corporate DMZ, it may register with an internal home agent on the intranet. If the mobile node determines that it is located on an external network, it may register with an external home agent on the external network and/or the corporate DMZ, establish a Virtual Private Network (“VPN”) tunnel to the corporate DMZ, and register with the internal home agent via the tunnel.

摘要翻译： 一种方法，装置和系统使得移动节点能够确定其位置并且向适当的归属代理注册以在不同网络之间提供无缝漫游。 更具体地，根据一个实施例，移动节点可以包括可以选择多个位置模块之一的策略引擎。 移动节点可以应用所选择的位置模块来确定其相对于公司非军事区（“DMZ”）的位置。 如果移动节点确定它位于公司DMZ后面的内部网上，则它可以向内部网上的内部归属代理注册。 如果移动节点确定它位于外部网络上，则可以向外部网络和/或公司DMZ上的外部归属代理注册，建立到公司DMZ的虚拟专用网（“VPN”）隧道，以及 通过隧道向内部归属代理机构注册。

公开(公告)号：US20050111454A1

公开(公告)日：2005-05-26

申请号：US10723916

申请日：2003-11-25

申请人： Ranjit Narjala ,  Farid Adrangi ,  Michael Andrews

发明人： Ranjit Narjala ,  Farid Adrangi ,  Michael Andrews

IPC分类号： H04L12/56

CPC分类号： H04L12/56

摘要： A mobile node may dynamically and intelligently route mobile IP packets. In one embodiment of the present invention, a method, apparatus and system are disclosed whereby a mobile node may include a policy manager to determine how to route mobile IP packets. Specifically, the policy manager may include various filters that provide information to a mobile IP driver on the mobile node to enable the driver to determine whether to apply mobile IP headers to outgoing packets prior to transmission.

摘要翻译： 移动节点可以动态地和智能地路由移动IP分组。 在本发明的一个实施例中，公开了一种方法，装置和系统，由此移动节点可以包括策略管理器以确定如何路由移动IP分组。 具体地，策略管理器可以包括向移动节点上的移动IP驱动程序提供信息的各种过滤器，以使驾驶员能够在传输之前确定是否将移动IP报头应用于输出分组。

公开(公告)号：US20050111380A1

公开(公告)日：2005-05-26

申请号：US10723813

申请日：2003-11-25

申请人： Farid Adrangi ,  Ranjit Narjala ,  Michael Andrews

发明人： Farid Adrangi ,  Ranjit Narjala ,  Michael Andrews

IPC分类号： H04L12/28 ,  H04L12/46 ,  H04L29/06 ,  H04L29/12

CPC分类号： H04W8/04 ,  H04L61/2015 ,  H04L63/0209 ,  H04L63/0272 ,  H04L63/164 ,  H04W48/16 ,  H04W80/04

摘要： A method, apparatus and system enable a mobile node to dynamically discover configuration information while roaming. In one embodiment, Dynamic Host Control Protocol (“DHCP”) servers may respond to a mobile node DHCP request with information pertaining to home agents. The mobile node may register with the home agent and receive a registration reply. Based on extensions within the registration reply, the mobile node may determine whether it is roaming on an internal or an external network. The mobile node may then utilize and/or store other information contained within the registration reply extensions to ensure that the mobile node is registered with the appropriate home agent.

摘要翻译： 一种方法，装置和系统使移动节点能够在漫游时动态地发现配置信息。 在一个实施例中，动态主机控制协议（“DHCP”）服务器可以利用与归属代理相关的信息来响应移动节点DHCP请求。 移动节点可以向归属代理注册并且接收注册回复。 基于注册答复内的扩展，移动节点可以确定它是否在内部或外部网络上漫游。 然后，移动节点可以利用和/或存储包含在注册应答扩展中的其他信息，以确保移动节点向适当的归属代理注册。

公开(公告)号：US20050094606A1

公开(公告)日：2005-05-05

申请号：US10702865

申请日：2003-11-05

申请人： Farid Adrangi ,  Ranjit Narjala ,  Michael Andrews

发明人： Farid Adrangi ,  Ranjit Narjala ,  Michael Andrews

IPC分类号： H04L29/06 ,  H04L29/12 ,  H04L12/28 ,  H04Q7/20

CPC分类号： H04L61/2015 ,  H04L29/12311 ,  H04L61/2084 ,  H04W8/04 ,  H04W80/04

摘要： A method, apparatus and system which enable a mobile node to request dynamic allocation of a home address and to maintain that home address when roaming between a home subnet and a foreign subnet. According to one embodiment, the mobile node may acquire a home address from its home agent by using a Network Access Identifier (“NAI”) extension in a registration request. The mobile node may send out this registration request when it first starts up, regardless of whether it is on its home subnet or a foreign subnet. Additionally, the mobile node may set a bit in the registration request to inform the home agent that it is on its home network. If the bit is not set, the home agent may deduce that the mobile node is on a foreign network. In either instance, the mobile node may continue to use its originally acquired home address.

摘要翻译： 一种使移动节点能够请求家庭地址的动态分配并且在归属子网和外部子网之间漫游时维护家庭地址的方法，装置和系统。 根据一个实施例，移动节点可以通过在注册请求中使用网络接入标识符（“NAI”）扩展从其归属代理获取归属地址。 移动节点首次启动时可以发出此注册请求，无论是在其本地子网还是外部子网。 此外，移动节点可以在注册请求中设置一个位以通知归属代理它在其归属网络上。 如果该位未设置，则归属代理可以推断移动节点在外部网络上。 在任一实例中，移动节点可以继续使用其原始获取的归属地址。

公开(公告)号：US06651141B2

公开(公告)日：2003-11-18

申请号：US09751790

申请日：2000-12-29

申请人： Farid Adrangi

发明人： Farid Adrangi

IPC分类号： G06F1200

CPC分类号： H04L63/10 ,  G06F12/0888 ,  G06F17/30902

摘要： A system and method for caching files is disclosed. Popularity values are calculated for a plurality of files over a period of time. The popularity values are then used to determine which files should be cached at various remote sites. Once the caches are filled, the popularity values associated with the cached files are periodically compared with the popularity values of uncached content. Generally, if the popularity of an uncached file is greater than the popularity of a cached file, then the cached file will be replaced. However, numerous different variables may be factored into the caching determination including, for example, the size of the file, the required bitrate of the file, the identity of the owner of the file, and/or the type of file.