WO2013029374A1 - 一种trill网络中mac地址表项的管理方法和设备 - Google Patents

一种trill网络中mac地址表项的管理方法和设备 Download PDF

Info

Publication number
WO2013029374A1
WO2013029374A1 PCT/CN2012/073773 CN2012073773W WO2013029374A1 WO 2013029374 A1 WO2013029374 A1 WO 2013029374A1 CN 2012073773 W CN2012073773 W CN 2012073773W WO 2013029374 A1 WO2013029374 A1 WO 2013029374A1
Authority
WO
WIPO (PCT)
Prior art keywords
routing bridge
bridge
routing
mac address
tcn
Prior art date
Application number
PCT/CN2012/073773
Other languages
English (en)
French (fr)
Inventor
徐小虎
张民贵
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP12827930.4A priority Critical patent/EP2738997B1/en
Publication of WO2013029374A1 publication Critical patent/WO2013029374A1/zh
Priority to US14/189,516 priority patent/US20140177475A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/66—Layer 2 routing, e.g. in Ethernet based MAN's
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/12—Discovery or management of network topologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/12—Discovery or management of network topologies
    • H04L41/122—Discovery or management of network topologies of virtualised topologies, e.g. software-defined networks [SDN] or network function virtualisation [NFV]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H04L45/03—Topology update or discovery by updating link state protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/12—Shortest path evaluation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery

Definitions

  • a method and device for managing MAC address entries in a TRILL network The application is filed on August 26, 2011, and the application number is 201110249205. X.
  • the invention name is "a MAC address entry in a TRILL network.”
  • the present invention relates to the field of communications technologies, and in particular, to a method and a device for managing a medium access control (MAC) address entry in a Transparent Interconnection of Lots of Links (TRILL) network.
  • MAC medium access control
  • TRILL Transparent Interconnection of Lots of Links
  • STP STP
  • STP is a data link layer (second layer) communication protocol based on the Open System Interconnect Reference Model (OSI).
  • OSI Open System Interconnect Reference Model
  • STP can be applied to the loop network.
  • the path redundancy is implemented by a certain algorithm.
  • the loop network is trimmed into a loop-free tree network to avoid the proliferation and infinite loop of packets in the loop network.
  • the "broadcast storm" problem of the network network network is, in a sense, a network protection technology that eliminates the cyclical connection caused by mistakes or accidents.
  • STP has obvious shortcomings, mainly including: (1) STP prevents loops by blocking certain ports, and does not allow multipath routing. In this way, all traffic is spread on a tree, even if there is an idle link, it cannot be used, and bandwidth utilization is insufficient.
  • the TRILL protocol is a solution proposed by the Internet Engineering Task Force (IETF) for multi-routing of Internet Layer 2 (such as Ethernet) that is being standardized.
  • IETF Internet Engineering Task Force
  • the TRILL Working Group to advance the standardization process of its agreements.
  • the TRILL protocol introduces the Intermediate System to Intermediate System Routing Protocol (IS-IS) to implement the bridge to bridge in the second layer (data link layer) of the Internet Protocol Stack.
  • IS-IS Intermediate System to Intermediate System Routing Protocol
  • the route between them replaces the past STP, so that data can be forwarded according to the shortest path, and multi-path routing is made possible, so that the utilization of bandwidth is more sufficient.
  • a local area network formed by a hub, a switch, and a traditional bridge is called a LAN link.
  • These LAN links are referred to as local links relative to the TRILL network.
  • Local links can be connected to different routing bridges (RBridges) to form a multi-homing scenario.
  • RBridges routing bridges
  • a designated bridge DRB, Designated RBridge
  • VLAN virtual forwarding area
  • VLAN virtual local area network
  • FIG. 1 which is a schematic diagram of a CE network architecture in the prior art
  • three switches are connected in a local link of a CE network, namely, a switch Al, a switch ⁇ 2, and a switch A3, and the VLAN carried on the local link is VLAN-x, host HI is connected to switch A2.
  • the switch A1 is connected to the routing bridge RB1
  • the switch A3 is connected to the routing bridge RB2.
  • the routing bridge RB1, the routing bridge RB2, and the routing bridge RB3 form a TRILL network.
  • the TRILL IS-IS protocol elects a routing bridge for each LAN link as the designated bridge.
  • the routing bridge RB1 is designated as the forwarding bridge by the designated bridge, so the medium access control of the routing bridge RB1 (MAC, Media Access Control)
  • the address table entry records that the host is connected to the local HI.
  • the MAC address of the routing bridge RB2 records the route bridge.
  • the host is connected to the RBI.
  • the MAC address table entry of the routing bridge RB3 records that the host bridge ⁇ 1 is connected to the routing bridge RBI.
  • the inventors of the present invention have found that the prior art has the following drawbacks: In the CE network architecture shown in FIG. 1, if the network topology of the local link changes, the host will be re-stabilized (bootstrap), and the host may The routing bridge RBI that was originally used as the forwarding bridge is switched to connect to the new forwarding bridge of the local link (for example, the new forwarding bridge is the routing bridge RB2).
  • the old forwarding bridge (such as the routing bridge RB1) does not sense the change of the network topology structure, and still stores the MAC address of the host HI recorded in its own MAC address entry, and other routing bridges in the TRILL network also The data packet is still forwarded to the old forwarding bridge RB1.
  • the old forwarding bridge RB1 is not connected to the host HI at this time, and the data packets forwarded by other routing bridges are lost, resulting in black holing. happened.
  • the embodiments of the present invention provide a method and a device for managing MAC address entries in a TRILL network, which are used to solve the problem of data packet loss in the existing TRILL network, and improve the success of data packet forwarding in the TRILL network. rate.
  • a method for managing a MAC address entry in a TRILL network includes:
  • the first routing bridge acquires the topology change notification TCN message through the switch connected to itself;
  • the first routing bridge clears, according to the TCN packet, the MAC address entry of the egress bridge that is the first routing bridge;
  • the first routing bridge sends a link state protocol data unit LSP message to the second routing bridge in the TRILL network, so that the second routing bridge clears the first routing bridge as an outlet.
  • a method for managing a MAC address entry in a TRILL network includes:
  • the second routing bridge receives the link state protocol data unit LSP message sent by the first routing bridge, where the first routing bridge and the second routing bridge are in the same virtual local area network VLAN; the second routing bridge The MAC address entry of the egress bridge that is the first routing bridge is cleared.
  • a routing bridge includes:
  • An acquiring unit configured to acquire a topology structure change notification TCN message by using a switch connected to the host;
  • a clearing unit configured to clear, according to the TCN packet, a media access control MAC address entry that uses the routing bridge as an egress bridge;
  • a sending unit configured to send a link state protocol data unit LSP message to the second routing bridge in the TRILL network of the multi-link transparent interconnection protocol, so that the second routing bridge clears the routing bridge of the second routing bridge As the MAC address entry of the egress bridge, the second routing bridge is in the same virtual local area network VLAN as the routing bridge.
  • a routing bridge includes:
  • a receiving unit configured to receive a link state protocol data unit LSP message sent by the first routing bridge, where the first routing bridge and the routing bridge are in the same virtual local area network VLAN;
  • the media access control MAC address entry of the egress bridge is cleared by the first routing bridge.
  • the first routing bridge clears its own MAC address entry according to the obtained TCN packet, and the first route is cleared.
  • the bridge sends an LSP packet to the second routing bridge in the TRILL network, so that the second routing bridge in the same VLAN as the first routing bridge can clear the first routing bridge as the egress bridge.
  • MAC address entry Since the embodiments of the present invention are capable of The old MAC address entries in the routing bridge are cleared, and the other routing bridges in the TRILL network are prevented from forwarding data packets to the old forwarding bridge. This can solve the problem of data packet loss in the existing TRILL network. The success rate of data packet forwarding in the TRILL network.
  • FIG. 1 is a schematic diagram of a CE network architecture in the prior art
  • FIG. 2 is a schematic diagram of a method for managing a MAC address entry in a TRILL network according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a method for managing a MAC address entry in another TRILL network according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a TRILL network for solving a black hole phenomenon according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a routing bridge according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of another routing bridge according to an embodiment of the present invention.
  • the embodiments of the present invention provide a method and a device for managing MAC address entries in a TRILL network, which are used to solve the problem of data packet loss in the existing TRILL network, and improve data packet forwarding in the TRILL network. Success rate.
  • the method for managing a MAC address entry in a TRILL network provided by the embodiment of the present invention.
  • the execution subject of the action is a first routing bridge, which is before the network topology structure of the local link is changed. Forwarding bridge. It can be understood that the first routing bridge represents only one routing bridge in the TRILL network, which is different from another routing bridge (ie, the second routing bridge) involved in the embodiment of the present invention.
  • the manner of naming is not intended to limit the invention.
  • a method for managing MAC address entries in a TRILL network includes:
  • the first routing bridge acquires a topology structure change notification message by using a switch connected to itself.
  • the first routing bridge in the TRILL network first obtains a Topology Change Notification (TCN) message through a switch connected to itself in the local link.
  • TCN Topology Change Notification
  • the TCN packet is used to notify the switch that the network topology in the local link has changed.
  • TCN packets are only transmitted between switches in the local link, and the routing bridge cannot sense changes in the network topology in the local link. Therefore, in the embodiment of the present invention, the first routing bridge acquires the TCN packet through the switch connected to itself.
  • the first routing bridge has multiple ways to obtain the TCN message, and then the description is respectively given.
  • An achievable manner is as follows: The first routing bridge listens to the switch connected to itself in the local link to obtain a TCN packet. Another way to achieve this is that the switch in the local link broadcasts the TCN packet, and the first routing bridge can receive the TCN packet through the interface connected to the switch.
  • the first routing bridge clears, according to the TCN packet, its media access control address entry that uses the first routing bridge as the egress bridge.
  • the first routing bridge clears the MAC address entry of the first routing bridge as the egress bridge according to the TCN packet. For example, the MAC of the first routing bridge before the network topology in the local link occurs The address table entry records the host in the local link and the MAC address of the host.
  • the first routing bridge uses its first routing bridge as the MAC address entry of the egress bridge. After clearing, the MAC address table of the first routing bridge does not record the host in the local link with the first routing bridge as the egress bridge and the MAC address of the host.
  • the first routing bridge sends a link state protocol data unit packet to the second routing bridge in the TRILL network, so that the second routing bridge clears the first routing bridge as the egress bridge.
  • a MAC address entry where the second routing bridge is in the same virtual local area network as the first routing bridge.
  • the first routing bridge sends a Link State Protocol Date Unit (LSP) packet to the second routing bridge in the TRILL network.
  • a routing bridge (such as a second routing bridge) in the same VLAN as the first routing bridge in the TRILL network can receive and process LSP packets, so that the second routing bridge that receives the LSP packet clears itself.
  • the first routing bridge is a MAC address entry of the egress bridge.
  • the routing bridge that is different from the VLAN where the first routing bridge is located in the TRILL network will not process the LSP.
  • the second routing bridge refers to one or more of the other routing bridges in the same VLAN as the first routing bridge.
  • the first routing bridge may send an LSP packet to the second routing bridge in the TRILL network by means of broadcast or multicast or unicast.
  • first routing bridge and the second routing bridge mentioned in the embodiments of the present invention are only used to distinguish between two different routing bridges, and do not have sequential or logically paired routing.
  • the definition of the bridge it can be understood that the routing bridge A, the routing bridge B and the like can be used to distinguish the two routing bridges, which are only limited herein.
  • operation 202 may be performed after the operation 202 is performed, or the operation 203 may be performed first.
  • operation 202 and operation 203 may also be performed at the same time, which is not limited herein.
  • the first routing bridge uses the first routing bridge according to the obtained TCN packet.
  • a routing bridge clears the MAC address entry of the egress bridge, and the first routing bridge sends an LSP packet to the second routing bridge in the TRILL network, so that the first routing bridge is in the same VLAN.
  • the second routing bridge can clear the MAC address entry of the egress bridge with the first routing bridge.
  • the embodiment of the present invention can remove the old MAC address entries in the routing bridges, and prevent other routing bridges in the TRILL network from forwarding data packets to the old forwarding bridges, which can solve the existing TRILL network.
  • the problem of data packet loss increases the success rate of data packet forwarding in the TRILL network.
  • the foregoing embodiment describes a method for managing a MAC address entry in a TRILL network implemented from a first routing bridge side, and then introduces a MAC in a TRILL network implemented by a second routing bridge side that interacts with the first routing bridge side.
  • Figure 3 For the management method of the address table entry, see Figure 3, including:
  • the second routing bridge receives the link state protocol data unit packet sent by the first routing bridge, where the first routing bridge and the second routing bridge are in the same virtual local area network.
  • the first routing bridge when the network topology in the local link is changed, after the first routing bridge obtains the TCN packet, the first routing bridge sends the second routing bridge to the TRILL network.
  • the LSP packet is sent.
  • the second routing bridge is in the same VLAN as the first routing bridge. Therefore, the second routing bridge receives the LSP packet sent by the first routing bridge.
  • the second routing bridge refers to one or more of other routing bridges in the same VLAN as the first routing bridge.
  • the first routing bridge may send an LSP packet to the second routing bridge in the TRILL network by means of broadcast or multicast or unicast.
  • the second routing bridge clears its own MAC address entry with the first routing bridge as the egress bridge.
  • the second routing bridge in the TRILL network after the second routing bridge in the TRILL network receives the LSP message sent by the first routing bridge, the second routing bridge will use the first routing bridge as the egress bridge ( The MAC address entry of the egress is cleared to prevent the second routing bridge from forwarding data packets to the old forwarding bridge after the network topology of the local link is changed. This prevents the second routing bridge from forwarding. The loss of data packets prevents traffic black holes.
  • the second routing bridge can clear the first routing network. The bridge is the MAC address entry of the egress bridge.
  • the embodiment of the present invention can remove the old MAC address entries in the routing bridges, and prevent other routing bridges in the TRILL network from forwarding data packets to the old forwarding bridges, which can solve the existing TRILL network.
  • the problem of data packet loss increases the success rate of data packet forwarding in the TRILL network.
  • the first routing bridge can clear its own MAC address entry with the first routing bridge as the egress bridge
  • the second routing bridge can clear its own first
  • the routing bridge is the MAC address entry of the egress bridge, which can avoid the second packet in the TRILL network, and can avoid the loss of the data packet forwarded by the second routing bridge, thereby avoiding the black hole phenomenon.
  • FIG. 4 it is a schematic diagram of a TRILL network that solves the black hole phenomenon in the embodiment of the present invention.
  • the local link is configured with VLAN-x
  • the host is HI connected to switch A2, and switch A1 and routing network.
  • the bridge RB1 is connected, and the switch A3 is connected to the routing bridge RB2.
  • the routing bridge RB1, the routing bridge RB2, and the routing bridge RB3 form a TRILL network.
  • the RBI is a forwarding bridge.
  • RB2 is a forwarding bridge.
  • the routing bridge RB2 and the routing bridge RB3 can still forward data packets to the old forwarding bridge RB1 after the network topology of the local link is changed, thereby avoiding the data packets forwarded by the routing bridge RB2 and the routing bridge RB3. Loss, so as to avoid the flow black hole phenomenon.
  • the number of routing bridges constituting the TRILL network may be two or more, and the number of switches in the local link may also be two or more, which are not limited.
  • the routing bridge 500 provided by the embodiment of the present invention includes:
  • the obtaining unit 501 is configured to obtain a TCN message by using a switch connected to itself.
  • the clearing unit 502 is configured to clear the MAC address entry of the routing bridge 500 as the egress bridge according to the TCN message.
  • the sending unit 503 is configured to send an LSP message to the second routing bridge in the TRILL network, so that the second routing bridge clears the MAC address entry of the routing bridge 500 as the egress bridge, where The second routing bridge is in the same VLAN as the routing bridge 500.
  • the second routing bridge refers to one or more of the other routing bridges in the same VLAN as the routing bridge 500.
  • the routing bridge can send LSP packets to the second routing bridge in the TRILL network by means of broadcast or multicast or unicast.
  • routing bridge 500 provided by the embodiment of the present invention actually refers to the first routing bridge described in the foregoing embodiments of FIG. 2 and FIG. 3, and is only described herein.
  • the bridge that interacts with the routing bridge 500 is named as the second routing bridge, and the second routing bridge is only the TRILL network and the routing network.
  • Bridge 500 is in one of the routing bridges in the same VLAN.
  • the obtaining unit 501 is specifically configured to listen to the switch connected to itself in the local link, and obtain the TCN packet. .
  • the obtaining unit 501 in the embodiment of the present invention is specifically implemented, another optional implementation manner is that the obtaining unit 501 is specifically configured to receive a TCN message broadcasted by a switch connected to itself.
  • the obtaining unit 501 first obtains through the switch connected to itself.
  • the clearing unit 502 clears its own MAC address entry with the routing bridge 500 as the egress bridge, and the sending unit 503 sends the LSP to the second routing bridge in the TRILL network.
  • the message enables the second routing bridge in the same VLAN as the routing bridge 500 to clear the MAC address entry that routes the bridge 500 as the egress bridge.
  • the embodiment of the present invention can remove the old MAC address entries in the routing bridges, and prevent other routing bridges in the TRILL network from forwarding data packets to the old forwarding bridges, which can solve the existing TRILL network.
  • the problem of data packet loss increases the success rate of data packet forwarding in the TRILL network.
  • the routing bridge 600 provided by the embodiment of the present invention includes:
  • the receiving unit 601 is configured to receive the LSP packet sent by the first routing bridge, where the first routing bridge and the routing bridge 600 are in the same VLAN.
  • the clearing unit 602 is configured to clear its own MAC address entry with the first routing bridge as the egress bridge.
  • routing bridge 600 provided by the embodiment of the present invention actually refers to the second routing bridge described in the foregoing embodiments of FIG. 2 and FIG. 3, and is only described herein.
  • the receiving unit 601 in the routing bridge 600 in the same VLAN as the first routing bridge can receive the LSP message sent by the first routing bridge, and the clearing unit 602 can clear the first route.
  • the bridge is the MAC address entry of the egress bridge.
  • the embodiment of the present invention can remove the old MAC address entries in the routing bridges, and prevent other routing bridges in the TRILL network from forwarding data packets to the old forwarding bridges, which can solve the existing TRILL network.
  • the problem of data packet loss increases the success rate of data packet forwarding in the TRILL network.
  • the medium can be a read only memory, a magnetic disk or a compact disk or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Small-Scale Networks (AREA)

Abstract

本发明实施例公开了一种TRILL网络中MAC地址表项的管理方法和设备。该方法包括：第一路由网桥通过与自身相连的交换机获取拓朴结构变更通知TCN报文；所述第一路由网桥根据所述TCN报文将自身的以所述第一路由网桥为出口网桥的MAC地址表项清除；所述第一路由网桥向TRILL网络中的第二路由网桥发送链路状态协议数据单元LSP报文，以使第二路由网桥清除自身的以所述第一路由网桥为出口网桥的MAC地址表项，所述第二路由网桥与所述第一路由网桥处于同一虚拟局域网VLAN中。

Description

一种 TRILL网络中 MAC地址表项的管理方法和设备 本申请要求于 2011年 08月 26日提交中国专利局、 申请号为 201110249205. X, 发明名称为"一种 TRILL网络中 MAC地址表项的管理方法 和设备 "的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及通信技术领域， 尤其涉及一种多链路透明互联协议 ( Transparent Interconnection of Lots of Links, TRILL )网络中介质访问控制 ( Media Access Control, MAC )地址表项的管理方法和设备。
背景技术
STP ) , STP是一种基于开放式系统互联参考模型 （OSI , Open System Interconnect Reference Model )的数据链路层（第二层）通讯协议。 STP可应 用于环路网络， 通过一定的算法实现路径冗余， 将环路网络修剪成无环路 的树型网络， 从而避免报文在环路网络中的增生和无限循环， 解决成环以 太网网络的 "广播风暴" 问题， 从某种意义上说是一种网络保护技术， 可 以消除由于失误或者意外带来的循环连接。但是 STP具有明显的缺点， 主要 有： （ 1 ) STP通过阻塞某些端口来防止环路， 不允许多路径路由（ multipath routing )。 这样所有的流量都在一棵树上传播， 即使存在空闲的链路也不能 被使用， 带宽利用不充分； （2 ) 流量会沿着非最优路径（如非最短路径） 传输， 加大了传输时延； （3 )在 STP中， 传统的互联网以太报文没有生存 时间 （ TTL , Time To Live )字段， 当由通信故障而导致环路发生时， 依然 会产生广播风暴问题， 对网络的危害很严重。 为了克服 STP的这些不足提出 议。
TRILL协议是互联网工程任务组 （Internet Engineering Task Force, IETF )针对正在标准化的互联网二层（如以太网）多路由提出的解决方案。 2005年， IETF成立了 TRILL工作组， 以推进其协议的标准化进程。
TRILL协议在互联网协议栈的第二层（数据链路层）引入了中间系统到 中间系统的路由选择协议 ( Intermediate System To Intermediate System Routing Protocol , IS-IS )来实现网桥（ bridge )到网桥之间的路由， 用以取 代过去的 STP, 从而可以按照最短路径进行数据转发， 并且使得多路径路由 成为可能， 使得带宽的利用更加充分。
在用户边缘设备（Customer Edge, CE ) 网络中， 由集线器、 交换机和 传统网桥连接的所构成的局域网都称为局域网链路（LAN link ) 。 相对于 TRILL网络而言， 这些局域网链路被称为本地链路 ( local link ) 。 本地链路 可与不同的路由网桥（ RBridge )相连，构成多归属（ multi-homing )的情形。 在 TRILL网络中， 由指定网桥（ DRB , Designated RBridge ) 为本地链路上 的虚拟局域网 （ Virtual Local Area Network, VLAN )指派唯一的一个转发 网桥（ Appointed Forwarder ) , 只有被指定为转发网桥的路由网桥才有转发 数据的权限。
如图 1所示， 为现有技术中 CE网络架构的示意图， CE网络的本地链路 中连接有 3个交换机， 分别为交换机 Al、 交换机 Α2、 交换机 A3 , 在本地链 路承载的 VLAN的是 VLAN-x, 主机 HI与交换机 A2相连。 多归属情形下的 CE网络中， 交换机 A1与路由网桥 RB1相连， 交换机 A3与路由网桥 RB2相连。 路由网桥 RB1、 路由网桥 RB2、 路由网桥 RB3构成一 TRILL网络。 在 TRILL 网络中， TRILL IS-IS协议为每个局域网链路选举一个路由网桥作为指定网 桥， 路由网桥 RB1被指定网桥指定为转发网桥， 所以路由网桥 RB1的介质访 问控制（ MAC, Media Access Control )地址表项记录的是本地连接有主机 HI , 路由网桥 RB2的 MAC地址表项中记录的是路由网桥 RBI上连接有主机 HI , 路由网桥 RB3的 MAC地址表项中记录的是路由网桥 RBI上连接有主机 Η1。
但是， 本发明的发明人发现现有技术存在以下缺陷： 如图 1所示的 CE 网络架构中， 如果本地链路的网络拓朴发生改变会导致主机重新站队 ( bootstrap ) , 主机可能会从与原来作为转发网桥的路由网桥 RBI相连接转 换到与本地链路新的转发网桥（比如新的转发网桥为路由网桥 RB2 )相连接。 但是，旧的转发网桥（比如路由网桥 RB1 )并不能感知网络拓朴结构的变化， 依然保存自己的 MAC地址表项中记录的主机 HI的 MAC地址 , TRILL网络中 的其它路由网桥也依然向旧的转发网桥 RB 1转发数据包，由于旧的转发网桥 RB1此时并不与主机 HI相连， 从而造成其它路由网桥转发的数据报文丟失， 导致流量黑洞 （black holing )现象的发生。
发明内容 本发明实施例提供了一种 TRILL网络中 MAC地址表项的管理方法和设 备， 用于解决现有 TRILL网络中存在的数据报文丟失的问题， 提高 TRILL网 络中数据报文转发的成功率。
根据本发明实施例的一个方面， 一种 TRILL网络中 MAC地址表项的管 理方法， 包括：
第一路由网桥通过与自身相连的交换机获取拓朴结构变更通知 TCN报 文；
所述第一路由网桥根据所述 TCN报文将自身的以所述第一路由网桥为 出口网桥的 MAC地址表项清除；
所述第一路由网桥向 TRILL网络中的第二路由网桥发送链路状态协议 数据单元 LSP报文，以使所述第二路由网桥清除自身的以所述第一路由网桥 为出口网桥的 MAC地址表项， 所述第二路由网桥与所述第一路由网桥处于 同一虚拟局域网 VLAN中。
根据本发明实施例的另一个方面， 一种 TRILL网络中 MAC地址表项的 管理方法， 包括：
第二路由网桥接收第一路由网桥发送的链路状态协议数据单元 LSP报 文， 所述第一路由网桥与所述第二路由网桥处于同一虚拟局域网 VLAN中； 第二路由网桥将自身的以所述第一路由网桥为出口网桥的 MAC地址表 项清除。
根据本发明实施例的一个方面， 一种路由网桥， 包括：
获取单元， 用于通过与自身相连的交换机获取拓朴结构变更通知 TCN 报文；
清除单元， 用于根据所述 TCN报文将自身的以所述路由网桥为出口网 桥的介质访问控制 MAC地址表项清除；
发送单元，用于向多链路透明互联协议 TRILL网络中的第二路由网桥发 送链路状态协议数据单元 LSP报文，以使所述第二路由网桥清除自身的以所 述路由网桥为出口网桥的 MAC地址表项， 所述第二路由网桥与所述路由网 桥处于同一虚拟局域网 VLAN中。
根据本发明实施例的一个方面， 一种路由网桥， 包括：
接收单元， 用于接收第一路由网桥发送的链路状态协议数据单元 LSP 报文， 所述第一路由网桥与所述路由网桥处于同一虚拟局域网 VLAN中； 清除单元， 用于将自身的以所述第一路由网桥为出口网桥的介质访问 控制 MAC地址表项清除。
在本发明实施例中， 第一路由网桥首先通过自身相连的交换机获取到 TCN报文之后， 根据获取到的 TCN报文， 第一路由网桥将自身的 MAC地址 表项清除， 第一路由网桥向 TRILL网络中的第二路由网桥发送 LSP报文， 使 得与所述第一路由网桥处于同一 VLAN中的所述第二路由网桥能够清除以 第一路由网桥为出口网桥的 MAC地址表项。 由于本发明实施例能够将各个 路由网桥中的旧的 MAC地址表项清除， 避免 TRILL网络中的其它路由网桥 向旧的转发网桥转发数据报文，可以解决现有 TRILL网络中存在的数据报文 丟失的问题， 提高 TRILL网络中数据报文转发的成功率。
附图说明 为了更清楚地说明本发明实施例中的技术方案， 下面将对实施例描述 中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅 是本发明的一些实施例， 对于本领域的技术人员来讲， 还可以根据这些附 图获得其他的附图。
图 1为现有技术中 CE网络架构的示意图；
图 2为本发明实施例提供的一种 TRILL网络中 MAC地址表项的管理方 法的示意图；
图 3为本发明实施例提供的另一种 TRILL网络中 MAC地址表项的管理 方法的示意图；
图 4为本发明实施例提供的解决流量黑洞现象的 TRILL网络的示意图； 图 5为本发明实施例提供的一种路由网桥的示意图；
图 6为本发明实施例提供的另一种路由网桥的示意图。
具体实施方式 本发明实施例提供了一种 TRILL网络中 MAC地址表项的管理方法和设 备， 用于解决现有 TRILL网络中存在的数据报文丟失的问题， 提高 TRILL网 络中数据报文转发的成功率。
为使得本发明的发明目的、 特征、 优点能够更加的明显和易懂， 下面 将结合本发明实施例中的附图， 对本发明实施例中的技术方案进行清楚、 完整地描述， 显然， 下面所描述的实施例仅仅是本发明一部分实施例， 而 非全部实施例。 基于本发明中的实施例， 本领域的技术人员所获得的所有 其他实施例， 都属于本发明保护的范围。
本发明实施例提供的一种 TRILL网络中 MAC地址表项的管理方法， 在 该方法的介绍过程中， 动作的执行主体为第一路由网桥， 是本地链路的网 络拓朴结构发生变更之前的转发网桥。 可以理解的是， 第一路由网桥表示 的只是 TRILL网络中的一种路由网桥，是为了与本发明实施例中后续涉及的 另一个路由网桥（即为第二路由网桥）相区别而命名的方式， 并不作为对 本发明的限定。
如图 2所示， 一种 TRILL网络中 MAC地址表项的管理方法， 包括：
201、 第一路由网桥通过与自身相连的交换机获取拓朴结构变更通知报 文。
在本发明实施例中， TRILL网络中的第一路由网桥首先通过本地链路中 与自身相连接的交换机获取到拓朴结构变更通知 （TCN, Topology Change Notification )报文。 其中， TCN报文用于通知交换机本地链路中的网络拓朴 结构发生了变更。 但是 TCN报文只在本地链路中的交换机之间传输， 而路 由网桥不能感知本地链路中网络拓朴结构的变化。 故本发明实施例中提出 由第一路由网桥通过与自身相连的交换机获取该 TCN报文。 在实际应用中， 第一路由网桥获取 TCN报文存在多种方式， 接下来分别给予描述。 其中一 种可实现的方式是： 第一路由网桥侦听本地链路中与自身相连的该交换机， 得到 TCN报文。其中另一种可实现的方式是：本地链路中的交换机广播 TCN 报文， 第一路由网桥通过与该交换机相连的接口能够接收到该 TCN报文。
202、 第一路由网桥根据 TCN报文将自身的以第一路由网桥为出口网桥 的介质访问控制地址表项清除。
在本发明实施例中， 第一路由网桥接收到 TCN报文之后， 第一路由网 桥根据该 TCN报文将自身的以第第一路由网桥为出口网桥的 MAC地址表项 清除。例如，在本地链路中的网络拓朴结构发生之前，第一路由网桥的 MAC 地址表项中记录有本地链路中的主机以及该主机的 MAC地址， 当第一路由 网桥接收到 TCN报文之后， 将自身的以第一路由网桥为出口网桥的 MAC地 址表项清除， 清除之后第一路由网桥的 MAC地址表中不再记录本地链路中 以第一路由网桥为出口网桥的的主机以及该主机的 MAC地址。
203、 第一路由网桥向 TRILL网络中的第二路由网桥发送链路状态协议 数据单元报文， 以使所述第二路由网桥清除自身的以第一路由网桥为出口 网桥的 MAC地址表项， 其中， 第二路由网桥与第一路由网桥处于同一虚拟 局域网中。
在本发明实施例中，第一路由网桥向 TRILL网络中的第二路由网桥发送 链路状态协议数据单元（LSP, Link State Protocol Date Unit )报文。 TRILL 网络中与第一路由网桥处于同一 VLAN的路由网桥（如第二路由网桥 )能够 接收并处理 LSP报文， 以使接收到该 LSP报文的第二路由网桥清除自身的以 第一路由网桥为出口网桥的 MAC地址表项。 对于 TRILL网络中与第一路由 网桥所处 VLAN不同的路由网桥将不会处理该 LSP报文。 其中， 第二路由网 桥是指与第一路由网桥处于同一 VLAN中的其他路由网桥中的一个或多个。 所述第一路由网桥可以通过广播或多播或单播的方式向 TRILL网络中的第 二路由网桥发送 LSP报文。 需要说明的是， 本发明实施例中提及的第一路由 网桥和第二路由网桥只是为了区别是两个不同的路由网桥而采取的命名方 式， 并不具有时序或逻辑上对路由网桥的限定， 可以理解的是， 也可以采 用路由网桥 A, 路由网桥 B等命名方式区分两个路由网桥， 此处仅作限定。
需要说明的是， 操作 202和操作 203之间不存在先后顺序之分， 在第一 路由网桥获取到 TCN报文之后， 可以先执行操作 202后执行操作 203 , 也可 以先执行操作 203再执行操作 202, 还可以同时执行操作 202和操作 203 , 此 处不作限定。
在本发明实施例中， 第一路由网桥首先通过自身相连的交换机获取到 TCN报文之后， 根据获取到的 TCN报文， 第一路由网桥将自身的以所述第 一路由网桥为出口网桥的 MAC地址表项清除， 所述第一路由网桥向 TRILL 网络中的第二路由网桥发送 LSP报文， 使得与所述第一路由网桥处于同一 VLAN中的第二路由网桥能够清除以第一路由网桥为出口网桥的 MAC地址 表项。由于本发明实施例能够将各个路由网桥中的旧的 MAC地址表项清除， 避免 TRILL网络中的其它路由网桥向旧的转发网桥转发数据报文，可以解决 现有 TRILL网络中存在的数据报文丟失的问题，提高 TRILL网络中数据报文 转发的成功率。
以上实施例介绍了从第一路由网桥侧实现的 TRILL网络中 MAC地址表 项的管理方法， 接下来介绍与该第一路由网桥侧交互的第二路由网桥侧实 现的 TRILL网络中 MAC地址表项的管理方法， 请参阅图 3所示， 包括：
301、 第二路由网桥接收第一路由网桥发送的链路状态协议数据单元报 文， 其中， 第一路由网桥与第二路由网桥处于同一虚拟局域网中。
在本发明实施例中， 当本地链路中的网络拓朴结构发生了变更时， 第 一路由网桥获取到 TCN报文之后，第一路由网桥会向 TRILL网络中的第二路 由网桥发送 LSP报文， 由于第二路由网桥与第一路由网桥处于同一 VLAN 中， 故第二路由网桥会接收到第一路由网桥发送的 LSP报文。 所述第二路由 网桥是指与第一路由网桥处于同一 VLAN中的其他路由网桥中的一个或多 个。所述第一路由网桥可以通过广播或多播或单播的方式向 TRILL网络中的 第二路由网桥发送 LSP报文。
302、第二路由网桥将自身的以第一路由网桥为出口网桥的 MAC地址表 项清除。
在本发明实施例中， TRILL网络中的第二路由网桥接收到第一路由网桥 发送的 LSP报文之后，第二路由网桥会将自身的以第一路由网桥为出口网桥 ( egress )的 MAC地址表项清除， 以避免该第二路由网桥在本地链路的网络 拓朴发生变更之后仍然向旧的转发网桥转发数据报文， 能够避免该第二路 由网桥转发的数据报文的丟失， 从而避免流量黑洞现象的发生。 在本发明实施例中，与第一路由网桥处于同一 VLAN中的第二路由网桥 在接收到第一路由网桥发送的 LSP报文之后，第二路由网桥能够清除以第一 路由网桥为出口网桥的 MAC地址表项。 由于本发明实施例能够将各个路由 网桥中的旧的 MAC地址表项清除， 避免 TRILL网络中的其它路由网桥向旧 的转发网桥转发数据报文，可以解决现有 TRILL网络中存在的数据报文丟失 的问题， 提高 TRILL网络中数据报文转发的成功率。
在如图 2和图 3介绍的实施例中， 第一路由网桥能够清除自身的以第一 路由网桥为出口网桥的 MAC地址表项， 第二路由网桥能够清楚自身的以第 一路由网桥为出口网桥的 MAC地址表项， 则可以避免 TRILL网络中的第二 据报文， 能够避免该第二路由网桥转发的数据报文的丟失， 从而避免流量 黑洞现象的发生。如图 4所示，为本发明实施例中解决流量黑洞现象的 TRILL 网络的示意图。 在图 4中， 本地链路中连接有 3个交换机（分别为交换机 Al、 交换机 A2、 交换机 A3 ) , 本地链路配置的是 VLAN-x , 主机为 HI与交换机 A2相连， 交换机 A1与路由网桥 RB1相连， 交换机 A3与路由网桥 RB2相连。 路由网桥 RB1、 路由网桥 RB2、 路由网桥 RB3构成一 TRILL网络， 在 TRILL 网络的拓朴结构发生变更之前 RBI为转发网桥， 当 TRILL网络的拓朴结构发 生变更之后 RB2为转发网桥， 按照如图 2和图 3的本发明实施例方法进行之 后， TRILL网络中， 每一个路由网桥自身的以 RB1为出口网桥的 MAC地址 表项都清除掉了， 则可以避免 TRILL网络中的路由网桥 RB2、 路由网桥 RB3 在本地链路的网络拓朴发生变更之后仍然向旧的转发网桥 RB1转发数据报 文， 能够避免路由网桥 RB2、 路由网桥 RB3转发的数据报文的丟失， 从而避 免流量黑洞现象的发生。在本发明实施例中，组成 TRILL网络的路由网桥可 以有 2个或多于 3个， 本地链路中的交换机也可能有 2台或者多于 3台， 具体 不作限制。
以上实施例介绍了本发明实施例提供的 TRILL网络中 MAC地址表项的 管理方法， 接下来介绍本发明实施例提供的 TRILL网络中的路由网桥。 请参阅图 5所示， 本发明实施例提供的路由网桥 500, 包括：
获取单元 501 , 用于通过与自身相连的交换机获取 TCN报文。
清除单元 502, 用于根据 TCN报文将自身的以路由网桥 500为出口网桥 的 MAC地址表项清除。
发送单元 503 , 用于向 TRILL网络中的第二路由网桥发送 LSP报文， 以 使所述第二路由网桥清除自身的以路由网桥 500为出口网桥的 MAC地址表 项， 其中， 第二路由网桥与路由网桥 500处于同一 VLAN中。 第二路由网桥 是指与路由网桥 500处于同一 VLAN中的其他路由网桥中的一个或多个。 所 述路由网桥可以通过广播或多播或单播的方式向 TRILL网络中的第二路由 网桥发送 LSP报文。
需要说明的是， 本发明实施例提供的路由网桥 500实际上指的就是前述 如图 2和图 3实施例中所介绍的第一路由网桥， 此处仅作说明。 另外如图 5所 示的实施例中， 当出现路由网桥 500时， 与该路由网桥 500交互的网桥命名 为第二路由网桥， 该第二路由网桥只是 TRILL网络中与路由网桥 500处于同 一 VLAN中的路由网桥中的一个。
需要说明的是， 本发明实施例中的获取单元 501在具体实现时， 一种可 选的实现方式是， 获取单元 501具体用于侦听本地链路中与自身相连的交换 机， 得到 TCN报文。
需要说明的是， 本发明实施例中的获取单元 501在具体实现时， 另一种 可选的实现方式是， 获取单元 501具体用于接收与自身相连的交换机广播的 TCN报文。
需要说明的是， 上述装置各模块 /单元之间的信息交互、 执行过程等内 容， 由于与本发明方法实施例基于同一构思， 其带来的技术效果与本发明 方法实施例相同， 具体内容可参见本发明如图 2所示的方法实施例中的叙 述， 此处不再赘述„ 在本发明实施例中， 获取单元 501首先通过自身相连的交换机获取到
TCN报文之后， 根据获取到的 TCN报文， 清除单元 502将自身的与路由网桥 500为出口网桥的 MAC地址表项清除， 发送单元 503向 TRILL网络中的第二 路由网桥发送 LSP报文， 使得与路由网桥 500处于同一 VLAN中的第二路由 网桥能够清除以路由网桥 500为出口网桥的 MAC地址表项。由于本发明实施 例能够将各个路由网桥中的旧的 MAC地址表项清除， 避免 TRILL网络中的 其它路由网桥向旧的转发网桥转发数据报文，可以解决现有 TRILL网络中存 在的数据报文丟失的问题， 提高 TRILL网络中数据报文转发的成功率。
接下来介绍本发明实施例提供的 TRILL网络中的另一种路由网桥，请参 阅图 6所示， 本发明实施例提供的路由网桥 600, 包括：
接收单元 601 , 用于接收第一路由网桥发送的 LSP报文， 其中， 第一路 由网桥与路由网桥 600处于同一 VLAN中。
清除单元 602,用于将自身的以第一路由网桥为出口网桥的 MAC地址表 项清除。
需要说明的是， 本发明实施例提供的路由网桥 600实际上指的就是前述 如图 2和图 3实施例中所介绍的第二路由网桥， 此处仅作说明。
需要说明的是， 上述装置各模块 /单元之间的信息交互、 执行过程等内 容， 由于与本发明方法实施例基于同一构思， 其带来的技术效果与本发明 方法实施例相同， 具体内容可参见本发明如图 3所示的方法实施例中的叙 述， 此处不再赘述„
在本发明实施例中， 与第一路由网桥处于同一 VLAN中的路由网桥 600 中的接收单元 601能够接收到第一路由网桥发送的 LSP报文， 清除单元 602 能够清除以第一路由网桥为出口网桥的 MAC地址表项。 由于本发明实施例 能够将各个路由网桥中的旧的 MAC地址表项清除， 避免 TRILL网络中的其 它路由网桥向旧的转发网桥转发数据报文，可以解决现有 TRILL网络中存在 的数据报文丟失的问题， 提高 TRILL网络中数据报文转发的成功率。 本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步 骤是可以通过程序来指令相关的硬件完成， 所述的程序可以存储于一种计 算机可读存储介质中， 上述提到的存储介质可以是只读存储器， 磁盘或光 盘等。
以上对本发明所提供的一种 TRILL网络中 MAC地址表项的管理方法和 设备进行了详细介绍， 对于本领域的一般技术人员， 依据本发明实施例的 思想， 在具体实施方式及应用范围上均会有改变之处， 综上所述， 本说明 书内容不应理解为对本发明的限制。

Claims

权利要求
1、一种多链路透明互联协议 TRILL网络中介质访问控制 MAC地址表项 的管理方法， 其特征在于， 包括：
第一路由网桥通过与自身相连的交换机获取拓朴结构变更通知 TCN报 文；
所述第一路由网桥根据所述 TCN报文将自身的以所述第一路由网桥为 出口网桥的 MAC地址表项清除；
所述第一路由网桥向 TRILL网络中的第二路由网桥发送链路状态协议 数据单元 LSP报文，以使所述第二路由网桥清除自身的以所述第一路由网桥 为出口网桥的 MAC地址表项， 所述第二路由网桥与所述第一路由网桥处于 同一虚拟局域网 VLAN中。
2、 根据权利要求 1所述的 TRILL网络中 MAC地址表项的管理方法， 其 特征在于， 所述第一路由网桥通过与自身相连的交换机获取拓朴结构变更 通知 TCN报文包括：
所述第一路由网桥侦听本地链路中与自身相连的所述交换机， 得到所 述 TCN报文。
3、 根据权利要求 1所述的 TRILL网络中 MAC地址表项的管理方法， 其 特征在于， 所述第一路由网桥通过与自身相连的交换机获取拓朴结构变更 通知 TCN报文包括：
所述第一路由网桥接收与自身相连的所述交换机广播的所述 TCN报 文。
4、一种多链路透明互联协议 TRILL网络中介质访问控制 MAC地址表项 的管理方法， 其特征在于， 包括：
第二路由网桥接收第一路由网桥发送的链路状态协议数据单元 LSP报 文， 所述第一路由网桥与所述第二路由网桥处于同一虚拟局域网 VLAN中； 第二路由网桥将自身的以所述第一路由网桥为出口网桥的 MAC地址表 项清除。
5、 一种路由网桥， 其特征在于， 所述路由网桥包括：
获取单元， 用于通过与自身相连的交换机获取拓朴结构变更通知 TCN 报文；
清除单元， 用于根据所述 TCN报文将自身的以所述路由网桥为出口网 桥的介质访问控制 MAC地址表项清除；
发送单元，用于向多链路透明互联协议 TRILL网络中的第二路由网桥发 送链路状态协议数据单元 LSP报文，以使所述第二路由网桥清除自身的以所 述路由网桥为出口网桥的 MAC地址表项， 所述第二路由网桥与所述路由网 桥处于同一虚拟局域网 VLAN中。
6、 根据权利要求 5所述的路由网桥， 其特征在于， 所述获取单元具体 用于侦听本地链路中与自身相连的所述交换机， 得到所述 TCN报文。
7、 根据权利要求 5所述的路由网桥， 其特征在于， 所述获取单元具体 用于接收与自身相连的所述交换机广播的所述 TCN报文。
8、 一种路由网桥， 其特征在于， 所述路由网桥包括：
接收单元， 用于接收第一路由网桥发送的链路状态协议数据单元 LSP 报文， 所述第一路由网桥与所述路由网桥处于同一虚拟局域网 VLAN中； 清除单元， 用于将自身的以所述第一路由网桥为出口网桥的介质访问 控制 MAC地址表项清除。
PCT/CN2012/073773 2011-08-26 2012-04-11 一种trill网络中mac地址表项的管理方法和设备 WO2013029374A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12827930.4A EP2738997B1 (en) 2011-08-26 2012-04-11 Method and device for managing mac address table entries in trill network
US14/189,516 US20140177475A1 (en) 2011-08-26 2014-02-25 Method and Device for Managing MAC Address Entry in Trill Network

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110249205.X 2011-08-26
CN201110249205.XA CN102957620B (zh) 2011-08-26 2011-08-26 一种trill网络中mac地址表项的管理方法和设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/189,516 Continuation US20140177475A1 (en) 2011-08-26 2014-02-25 Method and Device for Managing MAC Address Entry in Trill Network

Publications (1)

Publication Number Publication Date
WO2013029374A1 true WO2013029374A1 (zh) 2013-03-07

Family

ID=47755259

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/073773 WO2013029374A1 (zh) 2011-08-26 2012-04-11 一种trill网络中mac地址表项的管理方法和设备

Country Status (4)

Country Link
US (1) US20140177475A1 (zh)
EP (1) EP2738997B1 (zh)
CN (1) CN102957620B (zh)
WO (1) WO2013029374A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2852108A4 (en) * 2012-06-07 2015-05-20 Huawei Tech Co Ltd METHOD AND DEVICE FOR DELETING MEDIA ACCESS CONTROL DELIVERY TABLE ELEMENTS

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104301226B (zh) * 2013-07-16 2017-11-10 新华三技术有限公司 一种指定路由桥选举方法、设备和系统
CN104426778B (zh) * 2013-09-03 2018-01-02 华为技术有限公司 路由更新方法和路由设备
CN104320349B (zh) * 2014-10-31 2017-12-15 新华三技术有限公司 一种组播转发表项更新方法和装置
CN105721322A (zh) * 2014-12-03 2016-06-29 中兴通讯股份有限公司 在trill网络中传输组播数据的方法、装置和系统
CN106506313B (zh) * 2016-11-25 2019-08-23 武汉长光科技有限公司 一种提高路由桥接数据转发性能的低成本方法
CN113472655B (zh) * 2021-06-18 2023-06-13 新华三信息安全技术有限公司 一种管理二层转发表项方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101110747A (zh) * 2007-09-12 2008-01-23 华为技术有限公司 清除介质访问控制地址的方法、系统和设备
CN101656671A (zh) * 2009-08-28 2010-02-24 中兴通讯股份有限公司 一种报文发送的方法及装置
CN101827009A (zh) * 2009-03-04 2010-09-08 丛林网络公司 利用服务vlan标识符在trill网络中路由帧

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7609658B2 (en) * 2006-08-03 2009-10-27 Cisco Technology, Inc. Method and system for identifying instability or a spanning tree protocol loop in a network
US7944860B2 (en) * 2009-06-04 2011-05-17 Cisco Technology, Inc. Preventing loss of network traffic due to inconsistent configurations within the network
US8369335B2 (en) * 2010-03-24 2013-02-05 Brocade Communications Systems, Inc. Method and system for extending routing domain to non-routing end stations
US9608833B2 (en) * 2010-06-08 2017-03-28 Brocade Communications Systems, Inc. Supporting multiple multicast trees in trill networks
US8634297B2 (en) * 2010-11-01 2014-01-21 Cisco Technology, Inc. Probing specific customer flow in layer-2 multipath networks
US8982733B2 (en) * 2011-03-04 2015-03-17 Cisco Technology, Inc. System and method for managing topology changes in a network environment
US8879549B2 (en) * 2011-06-28 2014-11-04 Brocade Communications Systems, Inc. Clearing forwarding entries dynamically and ensuring consistency of tables across ethernet fabric switch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101110747A (zh) * 2007-09-12 2008-01-23 华为技术有限公司 清除介质访问控制地址的方法、系统和设备
CN101827009A (zh) * 2009-03-04 2010-09-08 丛林网络公司 利用服务vlan标识符在trill网络中路由帧
CN101656671A (zh) * 2009-08-28 2010-02-24 中兴通讯股份有限公司 一种报文发送的方法及装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2852108A4 (en) * 2012-06-07 2015-05-20 Huawei Tech Co Ltd METHOD AND DEVICE FOR DELETING MEDIA ACCESS CONTROL DELIVERY TABLE ELEMENTS
US9762410B2 (en) 2012-06-07 2017-09-12 Huawei Technologies Co., Ltd. Method and device for clearing media access control forwarding entry
US10277418B2 (en) 2012-06-07 2019-04-30 Huawei Technologies Co., Ltd. Method and device for clearing media access control forwarding entry

Also Published As

Publication number Publication date
CN102957620A (zh) 2013-03-06
EP2738997B1 (en) 2016-04-06
US20140177475A1 (en) 2014-06-26
EP2738997A1 (en) 2014-06-04
CN102957620B (zh) 2017-04-26
EP2738997A4 (en) 2014-08-20

Similar Documents

Publication Publication Date Title
EP3367619B1 (en) Synchronizing multicast state between multi-homed routers in an ethernet virtual private network
US8958423B2 (en) Implementing a multicast virtual private network by using multicast resource reservation protocol-traffic engineering
US10230535B2 (en) Communicating IGMP leave requests between load-balanced, multi-homed provider-edge routers in an ethernet virtual private network
JP5484590B2 (ja) 擬似ワイヤに基づいてサービストラヒックを処理するための方法、デバイスおよびシステム
US8953590B1 (en) Layer two virtual private network having control plane address learning supporting multi-homed customer networks
US7177946B1 (en) Optimal sync for rapid spanning tree protocol
WO2013029374A1 (zh) 一种trill网络中mac地址表项的管理方法和设备
CN105991432A (zh) 提供商边缘路由器及方法
US20070025276A1 (en) Congruent forwarding paths for unicast and multicast traffic
WO2012142910A1 (zh) 弹性网络接口、互连的实现方法和系统
WO2006007769A1 (fr) Reflecteur d'etiquette de pseudo-circuit, appareil de peripherie, reseau prive virtuel a deux couches, et procede de fourniture d'un service de pseudo-circuit
WO2012075831A1 (zh) 一种实现组播保护的方法及系统
WO2007143952A1 (fr) Procédé d'accès à un réseau privé virtuel, système privé virtuel, réseau privé virtuel et équipement de bordure du fournisseur
US20130100953A1 (en) In Band Signaling in Next Generation-Multicast Virtual Private Network Using Receiver Driven Resource Reservation Protocol-Traffic Engineering Point-To-Multipoint
EP3276895B1 (en) Communicating igmp leave requests between load-balanced, multi-homed provider-edge routers in an ethernet virtual private network
CN101800691A (zh) 一种建立网络中数据转发路径的方法、设备和系统
WO2013139159A1 (zh) 在网络中转发报文的方法和运营商边缘设备
WO2014079246A1 (zh) 组播流转发实现方法和路由网桥（rb）
WO2013086858A1 (zh) 一种恢复用户业务的方法和装置
WO2008095360A1 (fr) Méthode et système de commutation rapide en cas de défaillance d'une liaison d'un réseau privé virtuel
WO2007104201A1 (fr) Procédé d'acheminement de messages dans un tunnel de services
WO2014117530A1 (zh) 一种trill分发树故障的通告方法和装置
US11323279B1 (en) Internet group management protocol host mobility in ethernet virtual private network multicast networks
WO2015032261A1 (zh) 路由更新方法和路由设备
WO2013004140A1 (zh) 避免端系统地址分发信息协议报文风暴的方法及路由网桥

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12827930

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2012827930

Country of ref document: EP