公开(公告)号：US20090080436A1

公开(公告)日：2009-03-26

申请号：US11862161

申请日：2007-09-26

申请人： Russell White ,  James L. Ng ,  Donnie V. Savage

发明人： Russell White ,  James L. Ng ,  Donnie V. Savage

IPC分类号： H04L12/28

CPC分类号： H04L45/02 ,  H04L45/025

摘要： A router identifies transit links and non-transit links. Only the non-transit links are advertised as routes to adjacent routers, thereby protecting the transit links from edge traffic which terminates on a network on one of the transit links. In another aspect of the invention, an administrative whitelist supplements the routes which identify the transit link network routes. In another aspect of the invention, a method for advertising routes identifies entries in a router table as broadcast or point-to-point. Only the router table entries for point-to-point links which are not transit or broadcast links that are not for a neighboring router are advertised, whereas the point-to-point transit links or broadcast transit links are advertised as transit links if an administrative whitelist is enabled.

摘要翻译： 路由器识别过境链路和非过境链路。 只有非转接链路作为到相邻路由器的路由通告，从而保护转接链路免受终止于其中一个转接链路上的网络上的边缘业务。 在本发明的另一方面，管理白名单补充标识中继链路网络路由的路由。 在本发明的另一方面，广告路由的方法将路由器表中的条目标识为广播或点到点。 仅通告不用于相邻路由器的不转发或广播链路的路由器表条目，而点对点转接链路或广播转发链路则作为传输链路通告，如果管理 白名单启用。

公开(公告)号：US07325069B1

公开(公告)日：2008-01-29

申请号：US10010919

申请日：2001-12-07

申请人： Timothy M. Gage ,  Yi Yang ,  Donnie V. Savage

发明人： Timothy M. Gage ,  Yi Yang ,  Donnie V. Savage

IPC分类号： G06F15/16

CPC分类号： H04L45/02

摘要： The present invention describes a method and apparatus to ensure bi-directional connectivity between neighbor network elements in distance-vector protocol (e.g., EIGRP). The method further defines the dampening of neighbors that cannot establish a bi-directional connectivity. When a router receives an unreliable packet from a neighbor, the router adds the neighbor in neighbor table by gradually developing the reliability of the neighbor. First, the router adds neighbor's address into a dampening table and a ‘neighbor pending’ table. The router establishes a reliable communication with the neighbor. If the router cannot establish the reliable communication with the neighbor, the router dampens the neighbor and removes neighbor's address from ‘neighbor pending’ table. When the router establishes a reliable communication with the neighbor, the router ‘promotes’ the neighbor to the neighbor table. The router does not ‘advertise’ neighbor in its neighbor table until the neighbor is ‘promoted’ to the neighbor table.

摘要翻译： 本发明描述了一种确保距离矢量协议（例如，EIGRP）中的相邻网络元件之间的双向连接的方法和装置。 该方法进一步定义了不能建立双向连接的邻居的衰减。 当路由器收到邻居不可靠的报文时，路由器逐渐增加邻居的可靠性，在邻居表中添加邻居。 首先，路由器将邻居的地址添加到阻尼表和“邻居待处理”表中。 路由器与邻居建立可靠的通信。 如果路由器无法建立与邻居的可靠通信，路由器会阻塞邻居，并从邻居挂起表中删除邻居的地址。 当路由器与邻居建立可靠的通信时，路由器“促进邻居邻居”。 路由器在其邻居表中没有“通告”邻居，直到邻居被“升级”到邻居表。

公开(公告)号：US08203934B2

公开(公告)日：2012-06-19

申请号：US11445584

申请日：2006-06-02

申请人： Donnie V. Savage ,  Alvaro E. Retana ,  Steven E. Moore

发明人： Donnie V. Savage ,  Alvaro E. Retana ,  Steven E. Moore

IPC分类号： H04J3/14

CPC分类号： H04J3/14 ,  H04L45/22 ,  H04L45/28 ,  H04L45/583

摘要： Methods and apparatus for allowing a traffic level switch associated with an automatic protection switching (APS) topology to occur transparently and without reconverging routing are described. According to one aspect of the present invention, a method for providing protection switching configuration information associated with a router arrangement to includes identifying a first interface and a second interface of the router arrangement as an APS group. The method also includes providing information regarding the APS group to a process that implements a routing protocol. Providing the information regarding the group includes identifying the first interface as a primary interface and identifying the second interface as a backup interface that is arranged to protect the primary interface.

摘要翻译： 描述了允许与自动保护切换（APS）拓扑相关联的流量级别交换透明地发生并且没有重新恢复路由的方法和装置。 根据本发明的一个方面，一种用于提供与路由器装置相关联的保护交换配置信息的方法，包括将路由器装置的第一接口和第二接口标识为APS组。 该方法还包括向实现路由协议的进程提供关于APS组的信息。 提供关于组的信息包括将第一接口标识为主接口，并将第二接口标识为被配置为保护主接口的备份接口。

公开(公告)号：US07570582B1

公开(公告)日：2009-08-04

申请号：US11374501

申请日：2006-03-13

申请人： Donnie V. Savage

发明人： Donnie V. Savage

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L45/02 ,  H04L45/28

摘要： A method and system for determining route redistribution are disclosed. The method generally comprises receiving an information packet from a neighbor source. The information packet identifies the source as a stub router and specifies route types that the source will advertise. Upon receiving notice of a failed link within the network, query packets are sent only to neighboring devices that have not been identified as stub routers to request route information.

摘要翻译： 公开了一种用于确定路线再分配的方法和系统。 该方法通常包括从邻居源接收信息分组。 信息包将源标识为存根路由器，并指定源将通告的路由类型。 在收到网络中出现故障链路的通知之后，查询报文只发送给未被识别为存根路由器的相邻设备，以请求路由信息。

公开(公告)号：US08107501B2

公开(公告)日：2012-01-31

申请号：US12349394

申请日：2009-01-06

申请人： Donnie V. Savage ,  Thuan Van Tran ,  Russell I. White ,  Liem H. Nguyen

发明人： Donnie V. Savage ,  Thuan Van Tran ,  Russell I. White ,  Liem H. Nguyen

IPC分类号： H04J3/06

CPC分类号： H04L45/28 ,  H04L45/02 ,  H04L45/021

摘要： Techniques are disclosed for synchronizing a database related to a first node in a network with multiple nodes. Each node includes a database different from a database on a different node. An inquiry control message is sent to each node in a candidate set of one or more nodes on the network, which are different from the first node. In response to the inquiry control message, the first node receives a first set of one or more messages from a particular node different from the first node. The first set indicates a portion from the database of the particular node. The portion is relevant for the first node. A particular portion of a first database for the first node is derived from the first set of messages. The particular portion is less than all of the first database. These techniques allow the first node to derive its full database from multiple adjacent nodes.

摘要翻译： 公开了用于使与网络中的第一节点相关的数据库与多个节点同步的技术。 每个节点包括与不同节点上的数据库不同的数据库。 将查询控制消息发送到网络上与第一节点不同的一个或多个节点的候选集中的每个节点。 响应于查询控制消息，第一节点从不同于第一节点的特定节点接收第一组一个或多个消息。 第一组指示来自特定节点的数据库的一部分。 该部分与第一个节点相关。 用于第一节点的第一数据库的特定部分从第一组消息导出。 特定部分小于所有第一个数据库。 这些技术允许第一节点从多个相邻节点导出其完整数据库。

公开(公告)号：US20090116496A1

公开(公告)日：2009-05-07

申请号：US12349394

申请日：2009-01-06

申请人： Donnie V. Savage ,  Thuan Van Tran ,  Russell I. White ,  Liem H. Nguyen

发明人： Donnie V. Savage ,  Thuan Van Tran ,  Russell I. White ,  Liem H. Nguyen

IPC分类号： H04L12/56 ,  G06F15/173 ,  H04J3/06

CPC分类号： H04L45/28 ,  H04L45/02 ,  H04L45/021

摘要： Techniques are disclosed for synchronizing a database related to a first node in a network with multiple nodes. Each node includes a database different from a database on a different node. An inquiry control message is sent to each node in a candidate set of one or more nodes on the network, which are different from the first node. In response to the inquiry control message, the first node receives a first set of one or more messages from a particular node different from the first node. The first set indicates a portion from the database of the particular node. The portion is relevant for the first node. A particular portion of a first database for the first node is derived from the first set of messages. The particular portion is less than all of the first database. These techniques allow the first node to derive its full database from multiple adjacent nodes.

摘要翻译： 公开了用于使与网络中的第一节点相关的数据库与多个节点同步的技术。 每个节点包括与不同节点上的数据库不同的数据库。 将查询控制消息发送到网络上与第一节点不同的一个或多个节点的候选集中的每个节点。 响应于查询控制消息，第一节点从不同于第一节点的特定节点接收第一组一个或多个消息。 第一组指示来自特定节点的数据库的一部分。 该部分与第一个节点相关。 用于第一节点的第一数据库的特定部分从第一组消息导出。 特定部分小于所有第一个数据库。 这些技术允许第一节点从多个相邻节点导出其完整数据库。

公开(公告)号：US07388862B2

公开(公告)日：2008-06-17

申请号：US10465129

申请日：2003-06-19

申请人： Thuan Van Tran ,  Donnie V. Savage ,  Donald Slice

发明人： Thuan Van Tran ,  Donnie V. Savage ,  Donald Slice

IPC分类号： H04L12/28

CPC分类号： H04L45/02 ,  H04L45/026

摘要： A technique efficiently notifies EIGRP neighbors when destroying adjacencies in a computer network. A goodbye notification packet is provided that enables an EIGRP router to inform one or more of its neighbors of its intention to destroy their existing adjacencies. The goodbye notification packet comprises an EIGRP packet header with variable-length fields embodied as an appended goodbye attribute. The appended goodbye attribute is illustratively tagged according to a TLV encoding format that defines a new type (T) field called “a goodbye” having a predetermined type that distinguishes it from a conventional EIGRP Hello packet. A value (V) field of information conveyed within the goodbye attribute contains a list of neighbor (peer) identifiers (IDs). The peer IDs on this list instruct those neighbor routers to “go away” so that their adjacencies can be destroyed.

摘要翻译： 当破坏计算机网络中的邻接关系时，技术有效地通知EIGRP邻居。 提供了一个再见通知包，使得EIGRP路由器能够通知一个或多个邻居意图破坏其现有邻接。 再说通知分组包括具有实施为附加再见属性的可变长度字段的EIGRP分组报头。 附加的再见属性根据TLV编码格式被示意性地标记，TLV编码格式定义了具有预定类型的称为“再见”的新类型（T）字段，该预定类型将其与传统的EIGRP Hello数据包区分开。 在再见属性中传送的信息的值（V）字段包含邻居（对等体）标识符（ID）的列表。 此列表上的对等体ID指示这些邻居路由器“离开”，以使其邻接能够被破坏。

公开(公告)号：US07821970B2

公开(公告)日：2010-10-26

申请号：US11862161

申请日：2007-09-26

申请人： Russell White ,  James L. Ng ,  Donnie V. Savage

发明人： Russell White ,  James L. Ng ,  Donnie V. Savage

IPC分类号： H04L1/00 ,  H04L12/26

CPC分类号： H04L45/02 ,  H04L45/025

摘要： A router identifies transit links and non-transit links. Only the non-transit links are advertised as routes to adjacent routers, thereby protecting the transit links from edge traffic which terminates on a network on one of the transit links. In another aspect of the invention, an administrative whitelist supplements the routes which identify the transit link network routes. In another aspect of the invention, a method for advertising routes identifies entries in a router table as broadcast or point-to-point. Only the router table entries for point-to-point links which are not transit or broadcast links that are not for a neighboring router are advertised, whereas the point-to-point transit links or broadcast transit links are advertised as transit links if an administrative whitelist is enabled.

摘要翻译： 路由器识别过境链路和非过境链路。 只有非转接链路作为到相邻路由器的路由通告，从而保护转接链路免受终止于其中一个转接链路上的网络上的边缘业务。 在本发明的另一方面，管理白名单补充标识中继链路网络路由的路由。 在本发明的另一方面，广告路由的方法将路由器表中的条目标识为广播或点到点。 仅通告不用于相邻路由器的不转发或广播链路的路由器表条目，而点对点转接链路或广播转发链路则作为传输链路通告，如果管理 白名单启用。

公开(公告)号：US07515600B1

公开(公告)日：2009-04-07

申请号：US10353401

申请日：2003-01-28

申请人： Donnie V. Savage ,  Thuan Van Tran ,  Russell I. White ,  Liem H. Nguyen

发明人： Donnie V. Savage ,  Thuan Van Tran ,  Russell I. White ,  Liem H. Nguyen

IPC分类号： H04L12/56 ,  H04J3/12

CPC分类号： H04L45/28 ,  H04L45/02 ,  H04L45/021

摘要： Techniques are disclosed for synchronizing a database related to a first node in a network with multiple nodes. Each node includes a database different from a database on a different node. An inquiry control message is sent to each node in a candidate set of one or more nodes on the network, which are different from the first node. In response to the inquiry control message, the first node receives a first set of one or more messages from a particular node different from the first node. The first set indicates a portion from the database of the particular node. The portion is relevant for the first node. A particular portion of a first database for the first node is derived from the first set of messages. The particular portion is less than all of the first database. These techniques allow the first node to derive its full database from multiple adjacent nodes.

摘要翻译： 公开了用于使与网络中的第一节点相关的数据库与多个节点同步的技术。 每个节点包括与不同节点上的数据库不同的数据库。 将查询控制消息发送到网络上与第一节点不同的一个或多个节点的候选集中的每个节点。 响应于查询控制消息，第一节点从不同于第一节点的特定节点接收第一组一个或多个消息。 第一组指示来自特定节点的数据库的一部分。 该部分与第一个节点相关。 用于第一节点的第一数据库的特定部分从第一组消息导出。 特定部分小于所有第一个数据库。 这些技术允许第一节点从多个相邻节点导出其完整数据库。

公开(公告)号：US20070280103A1

公开(公告)日：2007-12-06

申请号：US11445584

申请日：2006-06-02

申请人： Donnie V. Savage ,  Alvaro E. Retana ,  Steven E. Moore

发明人： Donnie V. Savage ,  Alvaro E. Retana ,  Steven E. Moore

IPC分类号： H04J3/14 ,  H04L12/56

CPC分类号： H04J3/14 ,  H04L45/22 ,  H04L45/28 ,  H04L45/583

摘要： Methods and apparatus for allowing a traffic level switch associated with an automatic protection switching (APS) topology to occur transparently and without reconverging routing are described. According to one aspect of the present invention, a method for providing protection switching configuration information associated with a router arrangement to includes identifying a first interface and a second interface of the router arrangement as an APS group. The method also includes providing information regarding the APS group to a process that implements a routing protocol. Providing the information regarding the group includes identifying the first interface as a primary interface and identifying the second interface as a backup interface that is arranged to protect the primary interface.

摘要翻译： 描述了允许与自动保护切换（APS）拓扑相关联的流量级别交换透明地发生并且没有重新恢复路由的方法和装置。 根据本发明的一个方面，一种用于提供与路由器装置相关联的保护交换配置信息的方法，包括将路由器装置的第一接口和第二接口标识为APS组。 该方法还包括向实现路由协议的进程提供关于APS组的信息。 提供关于组的信息包括将第一接口标识为主接口，并将第二接口标识为被配置为保护主接口的备份接口。