Technique for notifying EIGRP neighbors when destroying adjacencies in a computer network
    1.
    发明授权
    Technique for notifying EIGRP neighbors when destroying adjacencies in a computer network 有权
    破坏计算机网络中邻接关系时通知EIGRP邻居的技术

    公开(公告)号:US07388862B2

    公开(公告)日:2008-06-17

    申请号:US10465129

    申请日:2003-06-19

    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。

    Techniques to support asymmetrical static/dynamic adjacency in routers
    2.
    发明授权
    Techniques to support asymmetrical static/dynamic adjacency in routers 有权
    支持路由器不对称静态/动态邻接的技术

    公开(公告)号:US07583672B2

    公开(公告)日:2009-09-01

    申请号:US11398825

    申请日:2006-04-05

    IPC分类号: H04L12/28

    CPC分类号: H04L45/16 H04L45/00 H04L45/02

    摘要: A static neighbor configured network device is configured with a static neighbor feature including a static neighbor list of network devices. The static neighbor configured network device is in a network segment that includes a dynamically configured network device. The static neighbor configured network device receives a multicast packet from the dynamically configured network device. It is determined if the dynamically configured network device is included in the static neighbor list of the static neighbor configured network device. The multicast packet is accepted if the dynamically configured network device is found in the neighbor list for the static neighbor configured network device. Also, adjacency for the static neighbor configured network device is not lost with any other currently adjacent network devices when the multicast packet is received.

    摘要翻译: 静态邻居配置的网络设备配置了静态邻居特性,包括网络设备的静态邻居列表。 静态邻居配置的网络设备位于包含动态配置的网络设备的网段中。 静态邻居配置的网络设备从动态配置的网络设备接收组播报文。 确定动态配置的网络设备是否包含在静态邻居配置的网络设备的静态邻居列表中。 如果在静态邻居配置的网络设备的邻居列表中找到动态配置的网络设备,则接收组播数据包。 此外,当接收到多播分组时,静态邻居配置的网络设备的邻接不会与任何其他当前相邻的网络设备丢失。

    Techniques for distributing routing information using multicasts
    3.
    发明授权
    Techniques for distributing routing information using multicasts 有权
    使用多播分发路由信息的技术

    公开(公告)号:US07512106B2

    公开(公告)日:2009-03-31

    申请号:US11497147

    申请日:2006-08-01

    IPC分类号: H04Q7/20

    摘要: Techniques for sending routing data include sending first routing data in a first multicast packet to a number N of adjacent nodes. It is determined whether different routing data is ready to be sent in a different multicast packet. If so, then a number M of adjacent nodes from which acknowledgment messages have been received, and whether M exceeds a threshold, is determined. If so, then a Conditional-Receive (CR) method is invoked in which a multicast message is sent which identifies each of a number L=N−M of laggard adjacent nodes. The laggard adjacent nodes are thus notified to ignore the different multicast packet. If it is determined that M does not exceed the threshold, then additional acknowledgement messages are received while waiting until M does exceed the threshold before the CR method is invoked. The threshold is greater than or equal to 1.

    摘要翻译: 用于发送路由数据的技术包括将第一组播数据包中的第一路由数据发送到相邻节点数量N。 确定不同的路由数据是否准备好在不同的组播数据包中发送。 如果是,则确定已经从其接收到确认消息的M个相邻节点以及M是否超过阈值。 如果是,则调用条件接收(CR)方法,其中发送组播消息,其标识L = N-M个落后相邻节点中的每一个。 因此,落后的相邻节点被通知以忽略不同的组播分组。 如果确定M不超过阈值,则在等待直到M确定超过CR方法被调用之前的阈值之后才接收附加确认消息。 阈值大于或等于1。

    Techniques for distributing routing information using multicasts
    4.
    发明申请
    Techniques for distributing routing information using multicasts 有权
    使用多播分发路由信息的技术

    公开(公告)号:US20080031244A1

    公开(公告)日:2008-02-07

    申请号:US11497147

    申请日:2006-08-01

    IPC分类号: H04L12/56

    摘要: Techniques for sending routing data include sending first routing data in a first multicast packet to a number N of adjacent nodes. It is determined whether different routing data is ready to be sent in a different multicast packet. If so, then a number M of adjacent nodes from which acknowledgment messages have been received, and whether M exceeds a threshold, is determined. If so, then a Conditional-Receive (CR) method is invoked in which a multicast message is sent which identifies each of a number L=N−M of laggard adjacent nodes. The laggard adjacent nodes are thus notified to ignore the different multicast packet. If it is determined that M does not exceed the threshold, then additional acknowledgement messages are received while waiting until M does exceed the threshold before the CR method is invoked. The threshold is greater than or equal to 1.

    摘要翻译: 用于发送路由数据的技术包括将第一组播数据包中的第一路由数据发送到相邻节点数量N。 确定不同的路由数据是否准备好在不同的组播数据包中发送。 如果是,则确定已经从其接收到确认消息的M个相邻节点以及M是否超过阈值。 如果是,则调用条件接收(CR)方法,其中发送组播消息,其标识L = N-M个落后相邻节点中的每一个。 因此,落后的相邻节点被通知以忽略不同的组播分组。 如果确定M不超过阈值,则在等待直到M确定超过CR方法被调用之前的阈值之后才接收附加确认消息。 阈值大于或等于1。

    Router configured for outputting update messages specifying a detected attribute change of a connected active path according to a prescribed routing protocol
    5.
    发明申请
    Router configured for outputting update messages specifying a detected attribute change of a connected active path according to a prescribed routing protocol 有权
    路由器被配置为根据规定的路由协议输出指定连接的活动路径的检测到的属性改变的更新消息

    公开(公告)号:US20050195835A1

    公开(公告)日:2005-09-08

    申请号:US10790204

    申请日:2004-03-02

    IPC分类号: H04L12/56

    摘要: A first router is configured for monitoring prescribed attributes of an active path connected to the first router, and supplying an update message to a second router, according to a prescribed routing protocol such as Enhanced Interior Gateway Routing Protocol (EIGRP), that specifies a detected change by the first router in at least one of the prescribed attributes of the connected active path. Hence, the second router, in response to receiving the update message, can update an internal topology table based on the detected change in the active path connected to the first router, and selectively adjust an internal routing table based on the detected change relative to queuing policies for prescribed data flows.

    摘要翻译: 第一路由器被配置为用于监视连接到第一路由器的活动路径的规定属性,并且根据规定的路由协议(诸如增强型内部网关路由协议(EIGRP))向第二路由器提供更新消息,其指定检测到的 由连接的主动路径的规定属性中的至少一个更改第一路由器。 因此,第二路由器响应于接收到更新消息,可以基于检测到的连接到第一路由器的活动路径的变化来更新内部拓扑表,并且基于检测到的相对于排队的改变来选择性地调整内部路由表 规定数据流的政策。

    Techniques to support asymmetrical static/dynamic adjacency in routers
    6.
    发明申请
    Techniques to support asymmetrical static/dynamic adjacency in routers 有权
    支持路由器不对称静态/动态邻接的技术

    公开(公告)号:US20070237142A1

    公开(公告)日:2007-10-11

    申请号:US11398825

    申请日:2006-04-05

    IPC分类号: H04L12/56

    CPC分类号: H04L45/16 H04L45/00 H04L45/02

    摘要: A static neighbor configured network device is configured with a static neighbor feature including a static neighbor list of network devices. The static neighbor configured network device is in a network segment that includes a dynamically configured network device. The static neighbor configured network device receives a multicast packet from the dynamically configured network device. It is determined if the dynamically configured network device is included in the static neighbor list of the static neighbor configured network device. The multicast packet is accepted if the dynamically configured network device is found in the neighbor list for the static neighbor configured network device. Also, adjacency for the static neighbor configured network device is not lost with any other currently adjacent network devices when the multicast packet is received.

    摘要翻译: 静态邻居配置的网络设备配置了静态邻居特性,包括网络设备的静态邻居列表。 静态邻居配置的网络设备位于包含动态配置的网络设备的网段中。 静态邻居配置的网络设备从动态配置的网络设备接收组播报文。 确定动态配置的网络设备是否包含在静态邻居配置的网络设备的静态邻居列表中。 如果在静态邻居配置的网络设备的邻居列表中找到动态配置的网络设备,则接收组播数据包。 此外,当接收到多播分组时,静态邻居配置的网络设备的邻接不会与任何其他当前相邻的网络设备丢失。