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1. 发明授权

US08537817B2 Apparatus and method to hide transit only multi-access networks in OSPF 有权
标题翻译：在OSPF中隐藏只有多路访问网络的设备和方法
公开(公告)号：US08537817B2
公开(公告)日：2013-09-17
申请号：US13048731
申请日：2011-03-15
申请人： Yi Yang , Alvaro E. Retana , James L. Ng , Abhay Roy , Alfred C. Lindem , Sina Mirtorabi , Timothy M. Gage , Syed Khalid Raza
发明人： Yi Yang , Alvaro E. Retana , James L. Ng , Abhay Roy , Alfred C. Lindem , Sina Mirtorabi , Timothy M. Gage , Syed Khalid Raza
IPC分类号： H04L12/28 , H04W4/00 , G06F15/177
CPC分类号： H04L45/021 , H04L45/02 , H04L45/025 , H04L45/54 , H04L45/60 , H04L47/10 , H04L63/0407
摘要： In one embodiment, a Link State Advertisement (LSA) is received from a first router in a network at a second router in the network. The LSA advertises an address of an interface of the first router. The second router determines whether the LSA includes a transit-only identification that indicates the interface of the first router is a transit-only interface. If the LSA does not include a transit-only identification, the second router installs the advertised address of the interface of the first router in a Router Information Base (RIB) of the second router. If the LSA does include a transit-only identification, the second router declines to install the advertised address of the interface of the first router in the RIB of the second router.
摘要翻译：在一个实施例中，在网络中的第二路由器处从网络中的第一路由器接收链路状态通告（LSA）。 LSA通告第一个路由器的接口地址。第二个路由器确定LSA是否包括仅表示第一个路由器的接口的只有传输的标识才是传输专用接口。如果LSA不包含传输标识，则第二路由器将路由器信息库（RIB）中第一个路由器接口的通告地址安装在第二个路由器上。如果LSA确实包含只有传输标识，则第二个路由器拒绝在第二个路由器的RIB中安装第一个路由器接口的通告地址。

2. 发明申请

US20110222550A1 APPARATUS AND METHOD TO HIDE TRANSIT ONLY MULTI-ACCESS NETWORKS IN OSPF 有权
标题翻译：在OSPF中仅隐藏多个接入网络的设备和方法
公开(公告)号：US20110222550A1
公开(公告)日：2011-09-15
申请号：US13048731
申请日：2011-03-15
申请人： Yi Yang , Alvaro E. Retana , James L. Ng , Abhay Roy , Alfred C. Lindem , Sina Mirtorabi , Timothy M. Gage , Syed Khalid Raza
发明人： Yi Yang , Alvaro E. Retana , James L. Ng , Abhay Roy , Alfred C. Lindem , Sina Mirtorabi , Timothy M. Gage , Syed Khalid Raza
IPC分类号： H04L12/56
CPC分类号： H04L45/021 , H04L45/02 , H04L45/025 , H04L45/54 , H04L45/60 , H04L47/10 , H04L63/0407
摘要： In one embodiment, a Link State Advertisement (LSA) is received from a first router in a network at a second router in the network. The LSA advertises an address of an interface of the first router. The second router determines whether the LSA includes a transit-only identification that indicates the interface of the first router is a transit-only interface. If the LSA does not include a transit-only identification, the second router installs the advertised address of the interface of the first router in a Router Information Base (RIB) of the second router. If the LSA does include a transit-only identification, the second router declines to install the advertised address of the interface of the first router in the RIB of the second router.
摘要翻译：在一个实施例中，在网络中的第二路由器处从网络中的第一路由器接收链路状态通告（LSA）。 LSA通告第一个路由器的接口地址。第二个路由器确定LSA是否包括仅表示第一个路由器的接口的只有传输的标识才是传输专用接口。如果LSA不包含传输标识，则第二路由器将路由器信息库（RIB）中第一个路由器接口的通告地址安装在第二个路由器上。如果LSA确实包含只有传输标识，则第二个路由器拒绝在第二个路由器的RIB中安装第一个路由器接口的通告地址。

3. 发明授权

US07929524B2 Apparatus and method to hide transit only multi-access networks in OSPF 有权
标题翻译：在OSPF中隐藏只有多路访问网络的设备和方法
公开(公告)号：US07929524B2
公开(公告)日：2011-04-19
申请号：US11537275
申请日：2006-09-29
申请人： Yi Yang , Alvaro E. Retana , James L. Ng , Abhay Roy , Alfred C. Lindem , Sina Mirtorabi , Timothy M. Gage , Syed Khalid Raza
发明人： Yi Yang , Alvaro E. Retana , James L. Ng , Abhay Roy , Alfred C. Lindem , Sina Mirtorabi , Timothy M. Gage , Syed Khalid Raza
IPC分类号： H04L12/28 , H04W4/00 , G06F15/177
CPC分类号： H04L45/021 , H04L45/02 , H04L45/025 , H04L45/54 , H04L45/60 , H04L47/10 , H04L63/0407
摘要： A system for hiding transit-only interfaces in a network. When a routing system is advertising a transit-only interface, the advertisement is marked to indicate the address is a transit-only interface. A routing system receives the advertisement and detects the identifier of the transit-only interface and does not store the address in the Router Information Base of the routing system.
摘要翻译：用于在网络中隐藏只转接口的系统。当路由系统广告传输专用接口时，该广告被标记为指示该地址是仅传输接口。路由系统接收广告并检测传输接口的标识符，并且不将路由信息库中的地址存储在路由信息库中。

4. 发明申请

US20080080494A1 APPARATUS AND METHOD TO HIDE TRANSIT ONLY MULTI-ACCESS NETWORKS IN OSPF 有权
标题翻译：在OSPF中仅隐藏多个接入网络的设备和方法
公开(公告)号：US20080080494A1
公开(公告)日：2008-04-03
申请号：US11537275
申请日：2006-09-29
申请人： Yi Yang , Alvaro E. Retana , James L. Ng , Abhay Roy , Alfred C. Lindem , Sina Mirtorabi , Timothy M. Gage , Syed Khalid Raza
发明人： Yi Yang , Alvaro E. Retana , James L. Ng , Abhay Roy , Alfred C. Lindem , Sina Mirtorabi , Timothy M. Gage , Syed Khalid Raza
IPC分类号： H04L12/56
CPC分类号： H04L45/021 , H04L45/02 , H04L45/025 , H04L45/54 , H04L45/60 , H04L47/10 , H04L63/0407
摘要： A system for hiding transit-only interfaces in a network. When a routing system is advertising a transit-only interface, the advertisement is marked to indicate the address is a transit-only interface. A routing system receives the advertisement and detects the identifier of the transit-only interface and does not store the address in the Router Information Base of the routing system.
摘要翻译：用于在网络中隐藏只转接口的系统。当路由系统广告传输专用接口时，该广告被标记为指示该地址是仅传输接口。路由系统接收广告并检测传输接口的标识符，并且不将路由信息库中的地址存储在路由信息库中。

5. 发明授权

US08023517B2 System and method for improving network performance and security by controlling topology information 有权
标题翻译：通过控制拓扑信息提高网络性能和安全性的系统和方法
公开(公告)号：US08023517B2
公开(公告)日：2011-09-20
申请号：US11400479
申请日：2006-04-05
申请人： Yi Yang , Donnie Van Savage , Timothy M. Gage , Thuan Van Tran , James L. Ng
发明人： Yi Yang , Donnie Van Savage , Timothy M. Gage , Thuan Van Tran , James L. Ng
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L45/54 , H04L45/02
摘要： A system for optimizing the performance of a network. In an illustrative embodiment, the system includes a memory containing one or more data structures data structures. A first module determines transit-only information. A second module selectively omits the transit-only information from the one or more data structures. In a more specific embodiment, the one or more data structures include one or more tables. The transit-only information includes interface Internet Protocol (IP) addresses associated with network interfaces that are transit-only interfaces. The route information may include network topology information. The one or more tables may include a network topology table. Plural routers positioned in the network incorporate one or more instances of the system. The routers may employ one or more routing protocols, such as include Enhanced Interior Gateway Routing Protocol (EIGRP) or Routing Information Protocol (RIP).
摘要翻译：用于优化网络性能的系统。在说明性实施例中，系统包括包含一个或多个数据结构数据结构的存储器。第一个模块确定只传输信息。第二模块选择性地省略来自一个或多个数据结构的仅传输信息。在更具体的实施例中，一个或多个数据结构包括一个或多个表。仅传输信息包括与作为仅传输接口的网络接口相关联的接口因特网协议（IP）地址。路由信息可以包括网络拓扑信息。一个或多个表可以包括网络拓扑表。位于网络中的多个路由器包含系统的一个或多个实例。路由器可以采用一个或多个路由协议，诸如包括增强型内部网关路由协议（EIGRP）或路由信息协议（RIP）。

6. 发明授权

US07626948B1 System and method for verifying the validity of a path in a network environment 有权
标题翻译：用于验证网络环境中路径的有效性的系统和方法
公开(公告)号：US07626948B1
公开(公告)日：2009-12-01
申请号：US10661326
申请日：2003-09-12
申请人： David A. Cook , James L. Ng , Alvaro E. Retana , Russell I. White
发明人： David A. Cook , James L. Ng , Alvaro E. Retana , Russell I. White
IPC分类号： H04L12/28
CPC分类号： H04L45/48 , H04L45/04
摘要： A method for verifying a validity of a path is provided that includes receiving an advertisement communication at a first autonomous system from a second autonomous system, the advertisement communication including a list of one or more connected autonomous systems. The method also includes identifying whether the first autonomous system claims a connection to the second autonomous system and whether the second autonomous system claims a connection to the first autonomous system such that two-way connectivity is established between the autonomous systems. In response to the establishment of the two-way connectivity, a directed graph is constructed that includes two nodes representing the first and second autonomous systems respectively. An edge may be formed that connects the two nodes.
摘要翻译：提供了一种用于验证路径的有效性的方法，其包括在第一自治系统中从第二自治系统接收广告通信，所述广告通信包括一个或多个连接的自主系统的列表。该方法还包括识别第一自治系统是否要求与第二自治系统的连接，以及第二自治系统是否要求与第一自治系统的连接，使得在自主系统之间建立双向连接。响应于双向连接的建立，构建了包括分别代表第一和第二自治系统的两个节点的有向图。可以形成连接两个节点的边缘。

7. 发明授权

US08953470B2 System and method for enhancing network stability by selectively controlling adjacency formation 有权
标题翻译：通过选择性地控制邻接形成来提高网络稳定性的系统和方法
公开(公告)号：US08953470B2
公开(公告)日：2015-02-10
申请号：US13269225
申请日：2011-10-07
申请人： Thuan Van Tran , Donnie Van Savage , Donald Earl Slice, Jr. , Steven Edward Moore , Yi Yang , James L. Ng
发明人： Thuan Van Tran , Donnie Van Savage , Donald Earl Slice, Jr. , Steven Edward Moore , Yi Yang , James L. Ng
IPC分类号： H04L12/26 , H04W40/12 , H04L12/701 , H04L12/721
CPC分类号： H04W40/12 , H04L45/00 , H04L45/123
摘要： A system and method for facilitating connecting a switch to a network to improve network performance. In an illustrative embodiment, the system includes a first module for determining when the switch is initially connected to a network and providing a signal in response thereto. A second module selectively forms adjacencies with peers of the switch in response to the signal and based on one or more predetermined parameters. In a more specific embodiment, the switch is a router or Layer-3 (L3) switch. The one or more predetermined parameters include a load factor, values pertaining to capabilities of a processor included in the router, bandwidth capabilities of the interface and/or the router, internal router queue counts, and so on. The router employs a routing protocol such as Enhanced Interior Gateway Routing Protocol (EIGRP). The second module throttles and adjacency-formation rate based on the predetermined parameters.
摘要翻译：一种便于将交换机连接到网络以提高网络性能的系统和方法。在说明性实施例中，系统包括第一模块，用于确定交换机何时最初连接到网络并提供响应于此的信号。响应于该信号并且基于一个或多个预定参数，第二模块选择性地与交换机的对等体形成邻接。在更具体的实施例中，交换机是路由器或第3层（L3）交换机。一个或多个预定参数包括负载因子，与路由器中包括的处理器的能力有关的值，接口和/或路由器的带宽能力，内部路由器队列计数等等。路由器采用路由协议，例如增强型内部网关路由协议（EIGRP）。基于预定参数的第二模块节流和邻接形成速率。

8. 发明授权

US08036213B1 System and method for enhancing network stability by selectively controlling adjacency formation 有权
标题翻译：通过选择性地控制邻接形成来提高网络稳定性的系统和方法
公开(公告)号：US08036213B1
公开(公告)日：2011-10-11
申请号：US11395846
申请日：2006-03-30
申请人： Thuan Van Tran , Donnie Van Savage , Donald Earl Slice, Jr. , Steven Edward Moore , Yi Yang , James L. Ng
发明人： Thuan Van Tran , Donnie Van Savage , Donald Earl Slice, Jr. , Steven Edward Moore , Yi Yang , James L. Ng
IPC分类号： H04L12/66
CPC分类号： H04W40/12 , H04L45/00 , H04L45/123
摘要： A system and method for facilitating connecting a switch to a network to improve network performance. In an illustrative embodiment, the system includes a first module for determining when the switch is initially connected to a network and providing a signal in response thereto. A second module selectively forms adjacencies with peers of the switch in response to the signal and based on one or more predetermined parameters. In a more specific embodiment, the switch is a router or Layer-3 (L3) switch. The one or more predetermined parameters include a load factor, values pertaining to capabilities of a processor included in the router, bandwidth capabilities of the interface and/or the router, internal router queue counts, and so on. The router employs a routing protocol such as Enhanced Interior Gateway Routing Protocol (EIGRP). The second module throttles and adjacency-formation rate based on the predetermined parameters.
摘要翻译：一种便于将交换机连接到网络以提高网络性能的系统和方法。在说明性实施例中，系统包括第一模块，用于确定交换机何时最初连接到网络并提供响应于此的信号。响应于该信号并且基于一个或多个预定参数，第二模块选择性地与交换机的对等体形成邻接。在更具体的实施例中，交换机是路由器或第3层（L3）交换机。一个或多个预定参数包括负载因子，与路由器中包括的处理器的能力有关的值，接口和/或路由器的带宽能力，内部路由器队列计数等等。路由器采用路由协议，如增强型内部网关路由协议（EIGRP）。基于预定参数的第二模块节流和邻接形成速率。

9. 发明申请

US20120026911A1 System and Method for Enhancing Network Stability by Selectively Controlling Adjacency Formation 有权
标题翻译：通过选择性控制邻接形成提高网络稳定性的系统和方法
公开(公告)号：US20120026911A1
公开(公告)日：2012-02-02
申请号：US13269225
申请日：2011-10-07
申请人： Thuan Van Tran , Donnie Van Savage , Donald Earl Slice, JR. , Steven Edward Moore , Yi Yang , James L. Ng
发明人： Thuan Van Tran , Donnie Van Savage , Donald Earl Slice, JR. , Steven Edward Moore , Yi Yang , James L. Ng
IPC分类号： H04L12/26
CPC分类号： H04W40/12 , H04L45/00 , H04L45/123
摘要： A system and method for facilitating connecting a switch to a network to improve network performance. In an illustrative embodiment, the system includes a first module for determining when the switch is initially connected to a network and providing a signal in response thereto. A second module selectively forms adjacencies with peers of the switch in response to the signal and based on one or more predetermined parameters. In a more specific embodiment, the switch is a router or Layer-3 (L3) switch. The one or more predetermined parameters include a load factor, values pertaining to capabilities of a processor included in the router, bandwidth capabilities of the interface and/or the router, internal router queue counts, and so on. The router employs a routing protocol such as Enhanced Interior Gateway Routing Protocol (EIGRP). The second module throttles and adjacency-formation rate based on the predetermined parameters.
摘要翻译：一种便于将交换机连接到网络以提高网络性能的系统和方法。在说明性实施例中，系统包括第一模块，用于确定交换机何时最初连接到网络并提供响应于此的信号。响应于该信号并且基于一个或多个预定参数，第二模块选择性地与交换机的对等体形成邻接。在更具体的实施例中，交换机是路由器或第3层（L3）交换机。一个或多个预定参数包括负载因子，与路由器中包括的处理器的能力有关的值，接口和/或路由器的带宽能力，内部路由器队列计数等等。路由器采用路由协议，如增强型内部网关路由协议（EIGRP）。基于预定参数的第二模块节流和邻接形成速率。

10. 发明申请

US20120106395A1 DETERMINING A ROUTE ADVERTISEMENT IN A REACTIVE ROUTING ENVIRONMENT 有权
标题翻译：在反应性路由环境中确定路由广告
公开(公告)号：US20120106395A1
公开(公告)日：2012-05-03
申请号：US13345003
申请日：2012-01-06
申请人： Russell I. White , Steven Edward Moore , James L. Ng , Alvaro Enrique Retana
发明人： Russell I. White , Steven Edward Moore , James L. Ng , Alvaro Enrique Retana
IPC分类号： H04L12/28
CPC分类号： H04L12/28 , H04L45/00 , H04L45/02
摘要： In an example embodiment, a method and system is provided to determine and advertise a route advertisement in a reactive routing environment. In response to receiving a network address query with respect to a destination address at a routing device, an aggregate value, e,g, an address prefix, is determined and advertised in reply to the network address query. Determining of the aggregate value may comprise identifying within a range of network addresses represented by the aggregate value respective addresses for which the routing device does not have reachability information. The routing device may send address queries with respect to the identified addresses, to determine reachability via the routing device of those addresses. The aggregate value may be advertised conditional upon determining that a percentage of addresses within the corresponding range that can be reached via the routing device satisfies a predefined minimal coverage value.
摘要翻译：在示例实施例中，提供了一种方法和系统来确定和通告在反应式路由环境中的路由通告。响应于在路由设备处接收到关于目的地地址的网络地址查询，确定聚合值e，g，地址前缀，并回复网络地址查询。确定聚合值可以包括在由路由设备不具有可达性信息的聚合值相应地址表示的网络地址范围内的识别。路由设备可以相对于所识别的地址发送地址查询，以通过路由设备确定那些地址的可达性。可以在确定可以通过路由设备到达的相应范围内的地址百分比满足预定义的最小覆盖值的情况下，将聚合值通告为有条件的。

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