WO2008009236A1 - Procédé et système de mise en oeuvre de segment de réseau à connexion directe - Google Patents

Procédé et système de mise en oeuvre de segment de réseau à connexion directe Download PDF

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Publication number
WO2008009236A1
WO2008009236A1 PCT/CN2007/070284 CN2007070284W WO2008009236A1 WO 2008009236 A1 WO2008009236 A1 WO 2008009236A1 CN 2007070284 W CN2007070284 W CN 2007070284W WO 2008009236 A1 WO2008009236 A1 WO 2008009236A1
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Prior art keywords
host
network segment
routing device
directly connected
connection
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PCT/CN2007/070284
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English (en)
French (fr)
Inventor
Xiaohu Xu
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Huawei Technologies Co., Ltd.
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Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2008009236A1 publication Critical patent/WO2008009236A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/02Topology update or discovery

Definitions

  • the present invention relates to a routing technology in a communication system, and in particular, to a direct connection network segment publishing method and system. Background of the invention
  • the router advertises the network prefix address of the interface, that is, the directly connected network segment, to the neighboring router through the routing protocol.
  • the router interface When in the DOWN state, the router sends a route update to the neighboring router through the dynamic routing protocol, and the directly connected network segment is revoked.
  • the router If the host in the directly connected network segment is connected to the router through an intermediate device such as a switch or a transmission device, when the connection between the host and the intermediate device is interrupted, and the link between the intermediate device and the router is normal, the router is connected. The interface of the intermediate device is still in the Up state. Therefore, the router will still advertise the directly connected network segment to the neighboring router through the routing protocol. That is, the packet sent by the remote host destined for the host will still be forwarded to the router hop by hop, since the host's connection to the router has been interrupted, so the packet will not reach the host.
  • an intermediate device such as a switch or a transmission device
  • the router When the router is connected to only one host through the intermediate device, if the host loses connection with the router and the interface between the router and the intermediate device is still in the UP state, the router will still advertise the directly connected network segment to the router. Adjacent routers, then the packets sent by the remote host to the host will be forwarded to the router before being discarded, which will easily waste resources.
  • the first object of the present invention is to provide a direct network segment publishing method
  • a second object is to provide a direct network segment publishing system
  • a third object is to provide a routing device to improve a direct network. The accuracy of the segment information release.
  • the method for publishing a directly connected network segment is as follows:
  • the routing device receives the detection result, and when the detection result is that the connection between the routing device and the host in the directly connected network segment is normal, the directly connected network segment is advertised to Adjacent routing device.
  • the direct network segment publishing system provided by the present invention includes:
  • the detecting device is configured to detect whether the connection between the routing device and the host in the directly connected network segment is normal, and send the detection result to the routing device.
  • the routing device is configured to advertise the directly connected network segment to the neighboring routing device when the received detection result is that the connection between the routing device and the host in the directly connected network segment is normal.
  • the routing device provided by the present invention includes:
  • a detection result receiving unit configured to receive the detection result, and send the received detection result to the issuing unit
  • the directly connected network segment is advertised to the neighboring routing device when the received detection result is that the connection between the routing device and the host in the directly connected network segment is normal. Therefore, in the present invention, when the router issues a directly connected network segment to other neighboring routers, it first needs to detect the connection state between the router and the host in the directly connected network segment. When it is detected that the connection between the router and the host is normal, the router only Neighboring routers publish directly connected network segments. In this way, the accuracy of the information distribution of the directly connected network segment can be improved, and the actual network routing state can be truly reflected, and the data cannot be delivered, the resources are wasted, or other hosts cannot be accessed. BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a flowchart of a method for issuing a directly connected network segment according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a first direct-connected network segment publishing system according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a second directly connected network segment publishing system according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a network architecture in an embodiment of the present invention. Mode for carrying out the invention
  • the basic idea of the present invention is: detecting the connection state of the router to the host in the directly connected network segment, and the router performs the issuance of the directly connected network segment according to the detection result.
  • the detection result is that the connection between the router and the host is normal, or the connection between the router and the host is interrupted.
  • the router performs the direct connection network segment distribution according to the detection result: when the connection between the router and the host is normal, the router issues the directly connected network segment; when the connection between the router and the host is interrupted, the router does not advertise the directly connected network segment. If the router has already advertised the directly connected network segment to the neighboring router before the interruption, when detecting that the connection between the router and the host is interrupted, the router sends a routing update to the neighboring router through the dynamic routing protocol, and the directly connected network segment is eliminated. .
  • the router can actively send a request to the host in the directly connected network segment, and according to the host A response to the request to detect its own connection status with the host.
  • the direct network segment publishing method in this embodiment mainly includes the following steps:
  • Step 101 The router periodically sends a request to the host in the directly connected network segment, and determines whether the number of consecutive responses to the host does not reach the decision threshold. If yes, it determines that the connection between the host and the host is interrupted, and step 103 is performed. Otherwise, determine that the connection with the host is normal, go to step 102.
  • the host When the connection status is normal, the host will return a response to the router after receiving the request from the router.
  • the decision threshold may be preset, and the value is at least 1. For example, if the decision threshold is equal to 3, that is, if the router does not receive the response of the host for three consecutive times, the connection between the router and the host is considered to be interrupted; if the response is received 3 times in succession, or received once, or received Two times, the connection between the router and the host is considered normal.
  • the decision threshold, the waiting duration, and the interval at which the router sends the request may be set according to actual conditions of the network.
  • the request is an address resolution protocol request (ARP request) message
  • the response is an address resolution protocol response (ARP reply) message
  • the request is an Internet Control Message Protocol echo request (ICMP echo request) message
  • the response is an Internet Control Message Protocol echo reply (ICMP echo reply) message and the like.
  • request or response may also take other forms of messages, and is not limited to the above.
  • Step 102 The router advertises the directly connected network segment to the neighboring router by using a routing protocol. And end the processing of this process.
  • Step 103 The router does not publish the directly connected network segment.
  • the router determines the connection between the host and the directly connected network segment through the dynamic routing protocol.
  • the neighboring router sends a route update to revoke the directly connected network segment.
  • the router can detect the connection status and the processing of the directly connected network segment through the method shown in Figure 1.
  • a detection device such as a personal computer (PC) may be separately configured to detect the connection status between the router and the host in the directly connected network segment of the router, and send the detection result to the router, and the router directly performs the detection result according to the received test result.
  • the detection device can be connected to a router.
  • the detecting device sends a request to the host in the directly connected network segment of the router through the router, detects the connection state between the router and the host according to the response of the host to the request, and notifies the router of the detection result.
  • a detecting device can be set on the intermediate device between the router and the host to detect the connection state between the intermediate device and the host, and the disconnection between the intermediate device and the host indicates that the connection between the router and the host is interrupted.
  • the detection device is connected to the intermediate device.
  • the detecting device sends a request to the host in the directly connected network segment of the router through the intermediate device, detects the connection state between the router and the host according to the response of the host to the request, and notifies the router of the detection result through the intermediate device.
  • the detecting device in FIG. 3 actually detects whether the connection between the intermediate device and the host is normal. Here, for convenience of description, it is collectively referred to as detecting the connection between the router and the host. Connected state.
  • the specific process of the detecting device sending a request to the host and detecting the connection state between the router and the host according to the response of the host to the request is similar to step 101, except that the actions in step 101 are performed by the router, and the detection is performed here.
  • the detecting device After the device is completed, the detecting device notifies the router of the detection result after detecting the connection state between the router and the host.
  • the specific processing procedure after the router knows the detection result is the same as that in Figure 1, and is no longer detailed here.
  • connection between the router and the host in the directly connected network segment is determined to be interrupted, and the directly connected network segment is released according to the detection result.
  • 10.1.1.0/24 is the address of the Internet Protocol (IP) network shown
  • 10.1.1.1/24 is the interface IP address of routers R1 and R2
  • 10.1.1.2 is the IP address of the server.
  • the server performs redundancy backup and load sharing through two hosts PC1 and PC2.
  • PC1 is connected to router R1 through intermediate device M
  • 20.1.1.2 is the IP address of host PC3.
  • the path through which the data packet sent by the host passes is determined by the shortest path from the host to the 10.1.1.0/24 network. That is, if the host is close to R1, the packet passes through R1. Access to the server, if the host is close to R2, the packet will be accessed to the server via R2. For example, after the PC3 sends the data packet sent to the server 10 ⁇ 1.2 to the router R3, the router R3 searches for the shortest path to reach the destination network 10.1.1.0/24, assuming that the shortest path at this time is R1, then the packet sent by the PC3. It will be forwarded to R1, and then R1 will be forwarded to host PC1.
  • the interface of R1 connected to the intermediate device is still in the UP state. If the direct-connected network segment is published, the directly connected network segment 10.1.1.0/24 of the interface will still be advertised by the router through the routing protocol. The other routers in the network reach the network.
  • the shortest path of the 10.1.1.0/24 network will not change. That is to say, at this time, the packet sent by PC3 with the destination of 10.1.1.2 will still be forwarded to R1 along the original path. However, since the connection between PC1 and R1 has been interrupted, PC3 will not be able to access the server 10.1. .1.2.
  • connection state of the PC1 and the R1 whether the direct connection network segment connected to the PC1 on the R1 is advertised through the routing protocol may be in the network where the server load sharing and the redundancy backup are deployed.
  • R1 periodically sends an ARP request packet or an ICMP echo request packet to PC1 to detect the connection status of the PCI. When a certain number of transmissions has not received the response from the host, it determines that the connection from PC1 to R1 is interrupted. Then, R1 sends a route update to the neighboring router to cancel the directly connected network segment through the dynamic routing protocol.
  • routers in the network After receiving the routing update, other routers in the network recalculate the route to the 10.1.1.0/24 network. The new route will go through the R2 to the 10.1.1.0/24 network, so that PC3 can continue to access the server 10.1.1.2. .
  • the present invention can ensure the accuracy of the information distribution of the directly connected network segment, and truly reflect the actual network routing state, and does not cause the data to be undeliverable, the waste of resources, or the inaccessibility of other hosts.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
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Description

一种直连网 布方法及系统 技术领域
本发明涉及通信系统中的路由技术, 尤其涉及一种直连网段发布方 法及系统。 发明背景
通常情况下, 当路由器的接口启动路由协议并且处于 UP状态时, 路由器会通过路由协议将该接口的网络前缀地址, 也就是通常所说的直 连网段, 发布给相邻路由器; 当路由器接口处于 DOWN状态时, 路由 器通过动态路由协议向相邻路由器发送路由更新, 撤消该直连网段。
如果直连网段内的主机通过交换机或传输设备等中间设备与路由 器连接, 那么, 当主机与中间设备的连接中断, 而中间设备与路由器之 间的链路状态正常的情况下, 由于路由器连接中间设备的接口仍然处于 UP状态, 因此该路由器仍然会将该直连网段通过路由协议发布给相邻 的路由器。 也就是说, 远端主机发送的目的地为该主机的数据包仍然会 被逐跳地转发到该路由器, 由于该主机与该路由器的连接已经中断, 因 此所述数据包将无法到达该主机。
当路由器通过中间设备只与一个主机相连的情况下, 如果该主机与 该路由器失去连接, 而该路由器与该中间设备的接口仍然处于 UP状态 时, 该路由器仍然会将该直连网段发布给相邻路由器, 那么, 远端主机 发送的目的地为该主机的数据包将被一直转发到该路由器之后才丢弃, 这样容易造成资源的浪费。
另外, 在部署服务器负载分担和冗余备份的网络中, 如果其中的一 台服务器主机与路由器之间失去连接, 而该路由器仍然向其它相邻路由 器发布该直连网段, 那么, 其它网络中的主机可能仍然会通过该路由访 问该主机, 由于该主机与该路由器之间已经失去连接, 因此, 这样可能 导致部分网络内的主机无法访问到所述服务器。
可见, 按照现有的直连网段发布方法所发布的直连网段信息不够准 确, 不能够真实地反映实际的网络路由状态, 容易造成数据无法送达、 资源浪费或其它主机无法访问等情况的发生。 发明内容
有鉴于此, 本发明的第一目的在于提供一种直连网段发布方法, 第 二目的在于提供一种直连网段发布系统, 第三目的在于提供一种路由设 备, 以提高直连网段信息发布的准确性。
为达到上述目的, 本发明提供的直连网段发布方法如下: 路由设备接收检测结果, 并在检测结果为路由设备与其直连网段内 主机的连接正常时, 将该直连网段发布给相邻路由设备。
本发明提供的直连网段发布系统包括:
检测设备, 用于检测路由设备与其直连网段内主机的连接是否正 常, 并将检测结果发送给路由设备;
路由设备, 用于在收到的检测结果为该路由设备与其直连网段内主 机的连接正常时, 将该直连网段发布给相邻路由设备。
本发明提供的路由设备包括:
检测结果接收单元, 用于接收检测结果, 并将收到的检测结果发送 给发布单元;
直连网段发布单元, 用于在收到的检测结果为该路由设备与其直连 网段内主机的连接正常时, 将该直连网段发布给相邻路由设备。 由此可见, 本发明中路由器在向其它相邻路由器发布直连网段时, 首先需要检测路由器与直连网段内主机的连接状态, 当检测到路由器与 主机的连接正常时, 路由器才向相邻路由器发布直连网段。 这样, 可以 提高直连网段信息发布的准确性, 真实地反映实际网络路由状态, 不会 造成数据无法送达、 资源浪费或其它主机无法访问等情况的发生。 附图简要说明
图 1为本发明实施例中的直连网段发布方法流程图。
图 2为本发明实施例中的第一种直连网段发布系统示意图。
图 3为本发明实施例中的第二种直连网段发布系统示意图。
图 4为本发明实施例中的网络架构示意图。 实施本发明的方式
为使本发明的目的、 技术方案及优点更加清楚明白, 下面参照附图 并举实施例, 对本发明作进一步详细说明。
本发明的基本思想是: 检测路由器与其直连网段内主机的连接状 态, 路由器根据检测结果进行该直连网段的发布。
其中, 检测结果为路由器与主机的连接正常, 或为路由器与主机的 连接中断。 所述路由器根据检测结果进行直连网段的发布包括: 当路由 器与主机的连接正常时, 路由器发布该直连网段; 当路由器与主机的连 接中断时, 路由器不发布该直连网段。 如果路由器在中断之前已经向相 邻路由器发布了该直连网段, 则在检测到路由器与主机的连接中断时, 路由器通过动态路由协议向相邻路由器发送路由更新, ί消该直连网 段。
这里, 路由器可以主动向直连网段内的主机发送请求, 并根据主机 对请求的响应来检测自身与该主机的连接状态。 参见图 1所示实施例, 本实施例中的直连网段发布方法主要包括以下几个步骤:
步骤 101 : 路由器周期性地向直连网段内的主机发送请求, 并判断 连续未收到该主机响应的次数是否达到决策门限, 如果是, 则确定自身 与该主机的连接中断, 执行步骤 103; 否则, 确定自身与该主机的连接 正常, 执行步骤 102。
在连接状态正常的情况下, 主机收到路由器发送来的请求后, 会向 路由器返回响应。
其中, 所述决策门限可预先设置, 取值至少为 1。 比如, 令决策 门限等于 3 , 也就是说, 如果路由器连续 3次均未收到主机的响应, 则认为路由器与主机的连接中断; 如果连续收到 3次响应、 或者收到 1次、 或者收到 2次, 则认为路由器与主机的连接正常。
对于路由器发送的单次请求, 可通过设置等待时长来判断是否收 到对应该次请求的响应, 也就是说, 路由器发出请求后, 如果在等待 时长内收到对应该请求的响应, 则认为该请求得到了主机的响应; 否 则, 认为该请求没有得到主机的响应。
其中, 所述决策门限、 等待时长、 及路由器发送请求的间隔可根据 网络的实际状况进行设置。
其中, 所述请求为地址解析协议请求(ARP request )报文, 所述响 应为地址解析协议应答(ARP reply )报文; 或者, 所述请求为因特网控 制消息协议回声请求( ICMP echo request )报文, 所述响应为因特网控 制消息协议回声应答(ICMP echo reply )报文等等。
需要说明的是, 请求或响应还可采取其它的报文形式, 而并不限于 以上所述几种。
步骤 102: 路由器通过路由协议将该直连网段发布给相邻路由器, 并结束本流程的处理。
步骤 103: 路由器不发布该直连网段。
如果路由器在确定自身与直连网段内主机的连接中断之前, 已经发 布了该直连网段, 则该路由器在确定了自身与直连网段内主机的连接中 断之后, 通过动态路由协议向相邻路由器发送路由更新, 撤消该直连网 段。
对于直连网段内的所有主机, 路由器均可以通过图 1所示的方法进 行连接状态的检测和直连网段发布的处理。
另外, 还可以单独设置一个检测设备, 如个人计算机(PC ), 用来 检测路由器与路由器直连网段内主机的连接状态, 并将检测结果发送给 路由器, 路由器根据收到的检测结果进行直连网段的发布。 参见图 2所 示, 该检测设备可以与路由器相连。 检测设备通过路由器向路由器直连 网段内的主机发送请求, 根据主机对请求的响应检测路由器与主机的连 接状态, 并将检测结果通知路由器。
若路由器与中间设备之间的连接中断, 路由器的接口处于 DOWN 状态, 这时路由器便不会再向外发布路由; 而如果中间设备与主机之间 的连接中断, 路由器的接口仍处于 UP状态, 此时路由器仍然会向外发 布路由。 因此,可以在路由器和主机之间的中间设备上设置一检测设备, 检测中间设备与主机之间的连接状态, 中间设备与主机之间的连接中断 就说明路由器与主机的连接中断。
参见图 3所示, 检测设备与中间设备相连。 检测设备通过中间设备 向路由器直连网段内的主机发送请求, 根据主机对请求的响应检测路由 器与主机的连接状态, 并将检测结果通过中间设备通知路由器。
需要指出的是, 图 3中的检测设备实际上是检测中间设备与主机之 间的连接是否正常, 这里为便于描述, 统一称为检测路由器与主机的连 接状态。
其中, 检测设备向主机发送请求、 及根据主机对请求的响应检测路 由器与主机连接状态的具体过程与步骤 101类似, 区别在于, 步骤 101 中的各个动作是由路由器完成的, 而这里是由检测设备完成的, 检测设 备在检测了路由器与主机的连接状态之后, 将检测结果通知给路由器。 路由器获知检测结果后的具体处理过程与图 1 一致, 这里不再——详 述。
需要说明的是, 在确定了路由器与其直连网段内主机的连接中断以 态, 并根据检测结果进行直连网段的发布。
下面通过一更为具体的实施例对本发明的方案和有益效果作进一 步详细说明。
参见图 4所示的网络架构, 10.1.1.0/24是所示网际协议(IP ) 网络 的地址, 10.1.1.1/24是路由器 R1和 R2的接口 IP地址, 10.1.1.2是服务 器的 IP地址, 该服务器通过两台主机 PC1和 PC2进行冗余备份和负载 分担, 其中, PC1通过中间设备 M与路由器 R1相连, 20.1.1.2是主机 PC3的 IP地址。
当网络上的主机访问服务器 10丄 1.2时, 主机发送的数据包经过的 路径由主机到达 10.1.1.0/24网络的最短路由决定, 也就是说, 如果主机 离 R1近, 数据包就会经过 R1访问到服务器, 如果主机离 R2近, 数据 包就会经过 R2访问到服务器。 比如, PC3发送给服务器 10丄 1.2的数据 包发送到路由器 R3之后,路由器 R3查找达到目的网络 10.1.1.0/24的最 短路径, 假设此时的最短路径是经过 R1的, 那么 PC3发送的数据包就 会被转发到 R1 , 然后 R1再转发给主机 PC1。
如果 PC1断电, 此时 R1连接中间设备的接口仍然处于 UP状态, 若按照现有的直连网段发布方法, 则该接口对应的直连网段 10.1.1.0/24 依然会被路由器通过路由协议发布出去, 网络中的其它路由器达到
10.1.1.0/24网络的最短路由不会发生任何改变。 也就是说, 这时 PC3发 送的目的地为 10.1.1.2的数据包仍然会沿着原来的路径, 转发到 R1 , 但 是, 由于 PC1与 R1的连接已经中断, 因此, PC3将无法正常访问服务 器 10.1.1.2。
此时, 若采取本发明所提供的方法, 根据 PC1与 R1的连接状态, 决定是否通过路由协议发布 R1上连接 PC1的直连网段, 则可以在部署 服务器负载分担和冗余备份的网络中, 避免上述问题的发生。 比如, R1 周期性地向 PC1发送 ARP request报文或 ICMP echo request报文对 PCI 的连接状态进行检测, 当达到一定的发送次数还没有收到主机的响应 时, 则确定 PC1到 R1的连接中断, 然后 R1通过动态路由协议向相邻 路由器发送撤消该直连网段的路由更新。 网络中的其它路由器收到该路 由更新之后,重新计算到达 10.1.1.0/24网络的路由,新的路由将经过 R2 到达 10.1.1.0/24网络, 这样, PC3就可以继续访问服务器 10.1.1.2了。
可见, 本发明能够保证直连网段信息发布的准确性, 真实地反映实 际网络路由状态, 不会造成数据无法送达、 资源浪费或其它主机无法访 问等情况的发生。
以上所述对本发明的目的、 技术方案和有益效果进行了进一步的详 细说明, 所应理解的是, 以上所述并不用以限制本发明, 凡在本发明的 精神和原则之内, 所做的任何修改、 等同替换、 改进等, 均应包含在本 发明的保护范围之内。

Claims

权利要求书
1、 一种直连网段发布方法, 其特征在于, 包括:
路由设备接收检测结果, 并在检测结果为路由设备与其直连网段内 主机的连接正常时, 将该直连网段发布给相邻路由设备。
2、 根据权利要求 1所述的方法, 其特征在于, 该方法进一步包括: 当检测结果为路由设备与其直连网段内主机的连接中断时, 所述路 由设备通过动态路由协议向相邻路由设备发送路由更新, 撤消该直连网 段。
3、根据权利要求 1或 2所述的方法, 其特征在于, 所述检测结果通 过以下过程生成:
通过所述路由设备与所述主机的连接路径向所述主机发送请求, 根 据该主机对请求的响应检测所述路由设备与所述主机的连接是否正常, 并将检测结果发送给路由设备。
4、根据权利要求 3所述的方法, 其特征在于, 所述请求为周期性请 求;
所述根据该主机对请求的响应检测所述路由设备与所述主机的连接 是否正常包括: 设置决策门限, 判断连续未收到所述主机响应的次数是 否达到决策门限,如果是,则确定所述路由设备与所述主机的连接中断; 否则, 确定所述路由设备与所述主机的连接正常。
5、根据权利要求 3所述的方法, 其特征在于, 所述请求为周期性请 求;
所述根据该主机对请求的响应检测所述路由设备与所述主机的连 接是否正常包括: 设置等待时长, 判断在所述等待时长内是否收到所述 主机的响应, 如果收到, 则确定所述路由设备与所述主机的连接正常; 否则, 确定所述路由设备与所述主机的连接中断。
6、 根据权利要求 4或 5所述的方法, 其特征在于, 所述请求为地 址解析协议请求 ARP request报文, 所述响应为地址解析协议应答 ARP reply报文;
或者, 所述请求为因特网控制消息协议回声请求 ICMP echo request 报文, 所述响应为因特网控制消息协议回声应答 ICMP echo reply报文。
7、 一种路由设备, 其特征在于, 包括:
检测结果接收单元, 用于接收检测结果, 并将收到的检测结果发送 给发布单元;
直连网段发布单元, 用于在收到的检测结果为该路由设备与其直连 网段内主机的连接正常时, 将该直连网段发布给相邻路由设备。
8、 根据权利要求 7 所述的设备, 其特征在于, 该设备还包括路由 更新单元, 用于在收到的检测结果为路由设备与其直连网段内主机的连 接中断时, 向相邻路由设备发送路由更新, 撤消该直连网段。
9、 根据权利要求 7或 8所述的设备, 其特征在于, 该设备进一步 包括:
检测单元, 用于检测所述路由设备与所述主机的连接是否正常, 并 将检测结果发送给检测结果接收单元。
10、 一种直连网段发布系统, 其特征在于, 包括:
检测设备, 用于检测路由设备与其直连网段内主机的连接是否正 常, 并将检测结果发送给路由设备;
路由设备, 用于在收到的检测结果为该路由设备与其直连网段内主 机的连接正常时, 将该直连网段发布给相邻路由设备。
11、 根据权利要求 10所述的系统, 其特征在于, 所述路由设备还 包括路由更新单元, 用于在收到的检测结果为路由设备与其直连网段内 主机的连接中断时, 向相邻路由设备发送路由更新, 撤消该直连网段。
12、 根据权利要求 10或 11所述的系统, 其特征在于, 当所述路由 设备与所述主机直接相连时, 所述检测设备与所述路由设备直接相连, 或者所述检测设备的功能由所述路由设备实现。
13、 根据权利要求 10或 11所述的系统, 其特征在于, 当所述路由 设备通过中间设备与所述主机连接时,
所述检测设备与所述中间设备直接相连, 或者所述检测设备的功能 由所述中间设备实现。
PCT/CN2007/070284 2006-07-12 2007-07-12 Procédé et système de mise en oeuvre de segment de réseau à connexion directe WO2008009236A1 (fr)

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CN1423876A (zh) * 2000-03-03 2003-06-11 明亮网络公司 由于故障链路的检测而动态重新路由选择业务的路由交换机
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