CN104243269A - Processing method and device of messages in VxLAN (virtual extensible local area network) - Google Patents

Processing method and device of messages in VxLAN (virtual extensible local area network) Download PDF

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CN104243269A
CN104243269A CN 201410495809 CN201410495809A CN104243269A CN 104243269 A CN104243269 A CN 104243269A CN 201410495809 CN201410495809 CN 201410495809 CN 201410495809 A CN201410495809 A CN 201410495809A CN 104243269 A CN104243269 A CN 104243269A
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vtep
vxlan
non
known
unicast
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CN 201410495809
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CN104243269B (en
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付志华
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杭州华三通信技术有限公司
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Abstract

The invention provides a processing method and device of messages in a VxLAN (virtual extensible local area network). The method includes: establishing a VxLAN tunnel with each VTEP (VxLAN tunnel end point); receiving an unknown unicast message transmitted by the source VTEP, determining all target VTEPs, except for the source VETP, in the VxLAN according to a VxLAN identifier carried in the unknown unicast message, and transmitting the unknown unicast message to the target VTEP. The processing method and device according to the scheme has the advantages that a proxy server added to the VxLAN is used to copy and forward the unknown unicast message, and network resources among VTEP devices are greatly saved.

Description

一种虚拟扩展局域网报文的处理方法及装置 A kind of virtual local area network expansion processing method and apparatus for message

技术领域 FIELD

[0001] 本发明涉及通信技术领域,特别涉及一种虚拟扩展局域网非已知单播报文的处理方法及装置。 [0001] The present invention relates to communication technology, and particularly relates to a method and apparatus for processing a virtual extension of the non-local area network known unicast packets.

背景技术 Background technique

[0002] 随着虚拟技术的广泛应用,4096个VLAN (Virtual Local Area Network,虚拟局域网)远不能满足大规模云计算数据中心的需求,因此,VxLAN(Virtual Extensible Local Area Network,虚拟扩展局域网)技术通过在源虚拟机端使用隧道端口技术,在物理三层网络上构建虚拟化二层网络,在现有网络架构上创建大量的虚拟扩展局域网,不同的虚拟扩展局域网使用VNI(VxLAN Network Identifier,虚拟扩展局域网网络标识符)进行标识,每个VNI最多可以包含4094个VLAN,从而扩展了虚拟局域网的数量,满足了用户使用。 [0002] With the widespread use of virtual technology, the 4096 VLAN (Virtual Local Area Network, a virtual local area network) can not meet the needs of large-scale cloud computing data centers, therefore, VxLAN (Virtual Extensible Local Area Network, a virtual extension of local area network) technology by the end of the source virtual machine using the port tunnel technology to build virtual Layer 2 network on a physical three-tier network, to create a large number of virtual local area network expansion in existing network architectures, different virtual LAN extension using VNI (VxLAN network Identifier, virtual extended LAN network identifier) ​​are identified, each VNI can contain up to 4094 VLAN, thereby expanding the number of virtual local area network to meet the users.

[0003] 如图1所示,现有的VxLAN通信网络包括多个VTEP(VxLAN Tunnel End Point,VxLAN 隧道终端)(即图1中的VTEP1、VTEP2、VTEP3)、连接于多个VTEP的IP核心网络中的核心设备,其中,每个VTEP的不同端口号对应多个虚拟机,如VM1、VM2、VM3对应VTEP1的同一个端口号GEl/0/l,VM4、VM5、VM6对应VTEPl的同一个端口号GEl/0/2等等。 [0003] As shown, the conventional communications network comprises a plurality of VxLAN VTEP (VxLAN Tunnel End Point, VxLAN tunnel terminal) (i.e., in FIG. 1 VTEP1, VTEP2, VTEP3), connected to a plurality of IP cores VTEP the core network apparatus, wherein each of the different port numbers corresponding to VTEP plurality of virtual machines, such as VM1, VM2, VM3 corresponding to the same port number VTEP1 GEl / 0 / l, VM4, VM5, VM6 corresponding to the same VTEPl port number GEl / 0/2 and the like. VxLAN通信网络中的每个VTEP预先学习对应的每个虚拟机VM的MAC地址,当接收到某一虚拟机发来的已知单播报文,根据该已知单播报文所携带的目的地址查找自身保存的MAC关系表,将该已知单播报文发送给对应的目标虚拟机所连接的VTEP。 VxLAN communication network VTEP learned in advance for each MAC address for each virtual machine (VM) and a virtual machine when receiving the incoming unicast packets is known, based on the look known unicast packet destination address carried stored by MAC table, the known unicast packets sent to VTEP corresponding target virtual machine is connected. 当VTEP接收到非已知单播报文(具体包括未知单播报文、广播报文或组播报文)时,VxLAN通信方法可以包括以下两种方式: When receiving the non VTEP known unicast packets (specifically including an unknown unicast packet, a broadcast packet or a multicast packet) time, VxLAN communication method may include the following two ways:

[0004] 第一种方式是:VTEP对接收到的报文复制成多份,并根据预先学习属于同一虚拟扩展局域网的其他VTEP (例如VTEP2和VTEP3)的IP地址对复制后的每个报文封装VxLAN 头、UDP头和IP头,并将封装后的报文发送给相应的VTEP,再由各VTEP对其各自所连接的虚拟机进行广播。 [0004] The first way is: VTEP received duplicate packets into multiple copies, and IP address based on pre-learning that belong to other VTEP the same virtual LAN extension (for example VTEP2 and VTEP3) for each message after copying VxLAN head package, UDP and IP header, and transmits the encapsulated packet to the corresponding VTEP, then by VTEP broadcast its corresponding virtual machine is connected. 然而,当VxLAN通信网络规模较大时,在VTEP上进行复制,对VTEP设备的性能要求较高。 However, when large-scale communication network VxLAN, is replicated on VTEP, VTEP apparatus for high performance requirements.

[0005] 第二种方式是:核心设备将VxLAN网络内的所有VTEP加入同一个组播组,并利用三层组播路由协议建立组播转发表项。 [0005] The second way is: all VTEP VxLAN core equipment within the network to join the same multicast group, and multicast forwarding entries use Layer 3 multicast routing protocol. 该源VTEP接收到报文后,对该报文进行封装,封装后的目的IP地址为组播IP地址,从而将接收到的报文发送给组播组内除源VTEP之外的其他VTEP (VTEP2、VTEP3)。 The source VTEP after receiving the packets, the encapsulated packet, the destination IP address of the encapsulated IP multicast address to the received packet to the other source except VTEP VTEP in the multicast group ( VTEP2, VTEP3). 如果VxLAN通信网络利用该方式进行通信,需要VxLAN通信网络中的各个设备均支持三层组播,因此该方式具有一定的局限性。 If VxLAN communication network by using the communication mode, the communication network requires VxLAN respective three devices support multicast, this embodiment has some limitations.

发明内容 SUMMARY

[0006] 有鉴于此,本发明提供一种虚拟扩展局域网报文的处理方法及装置,以解决对VTEP设备的性能以及方式局限性的问题。 [0006] Accordingly, the present invention provides a method and apparatus for processing a virtual extended LAN packets, in order to solve the performance limitations VTEP apparatus and the manner in question.

[0007] 本发明提供了一种虚拟扩展局域网报文的处理方法,该虚拟扩展局域网包括多个VxLAN隧道终端VTEP以及代理服务器,该方法应用于代理服务器,包括: [0007] The present invention provides a method for processing a virtual extension of the LAN packet, the virtual local area network includes a plurality of extension terminals VTEP VxLAN tunnels and proxy servers, the method is applied proxy server, comprising:

[0008] 所述代理服务器与各个VTEP间建立VxLAN隧道; [0008] The proxy server establishes a tunnel between the respective VxLAN the VTEP;

[0009] 接收源VTEP发送的非已知单播报文,根据该非已知单播报文携带的VxLAN标识确定在该VxLAN内除源VTEP外所有的目标VTEP,并将该非已知单播报文发送给目标VTEP。 [0009] The non-receiving transmission source VTEP known unicast packet, determining all of the target VTEP except in the VxLAN VTEP source, and the non-unicast packets based on the known non-known unicasts identifier carried VxLAN to the target VTEP.

[0010] 优选地,所述与各个VTEP间建立VxLAN隧道,具体包括: [0010] Preferably, establishing the tunnel between the respective VxLAN the VTEP, comprises:

[0011] 接收各个VTEP发送的注册报文,所述注册报文中携带该VTEP的IP地址和至少一个VxLAN标识; [0011] each VTEP receiving messages transmitted register, the registration packet contains the IP address of the VxLAN VTEP and at least one identifier;

[0012] 对自身所配置的多个VxLAN标识的集合与所述注册报文携带的所述至少一个VxLAN标识的集合取交集运算; [0012] The set of a plurality of set VxLAN identified itself with the configuration register packet carries at least one identification VxLAN intersected operation;

[0013] 在交集运算为真时,与各个VTEP建立VxLAN隧道,并根据交集匹配的VxLAN保存该VxLAN标识所对应的VTEP关系表。 [0013], based on the intersection operation is true VTEP VxLAN respective tunnel, and the relationship table stored VTEP VxLAN identifier corresponding to the intersection of matching according VxLAN.

[0014] 优选地,所述代理服务器将该非已知单播报文发送给目标VTEP,具体包括: [0014] Preferably, the non-known in the proxy server unicasts the VTEP sent to the target, comprises:

[0015] 根据非已知单播报文中携带的VxLAN标识,以及预先保存的该VxLAN标识所对应的VTEP关系表,确定在该VxLAN内除源VTEP外所有的目标VTEP ; [0015] The non-known unicast packet table VTEP carried VxLAN identifier and the pre-stored identification VxLAN corresponding, source in addition to determining all of the target within the VTEP outer VTEP VxLAN;

[0016] 根据所述目标VTEP的目的IP地址,对该非已知单播报文进行复制,将复制后的非已知单播报文的目的地址修改为所述目标VTEP的IP地址并封装; [0016] The destination IP address of the target VTEP, that non known unicasts copy, the copied non-known unicast address modification based on destination IP address of the target package and VTEP;

[0017] 利用与各个目标VTEP间的VxLAN隧道将修改后的非已知单播报文发送给对应的目标VTEP。 [0017] using a known non-unicast packets and transmits the VxLAN VTEP tunnel between the target to be modified corresponding to the respective target VTEP.

[0018] 优选地,所述方法还包括: [0018] Preferably, the method further comprising:

[0019] 在接收到VTEP发送的退出请求报文时,确定该VTEP的VxLAN标识,并将该VxLAN 内与该VTEP间的VxLAN隧道删除。 [0019] Upon receiving the request sent by the exit VTEP packet identifier of the determined VxLAN VTEP, and deleting the tunnel between VxLAN VTEP within the VxLAN.

[0020] 本发明还提供了一种虚拟扩展局域网报文的处理方法,该虚拟扩展局域网内包括多个VxLAN隧道终端VTEP、每个VTEP对应的虚拟机、以及代理服务器,该方法应用于源VTEP端,包括: [0020] The present invention also provides a method of processing LAN packets of a virtual extension, in the virtual local area network includes a plurality of extension terminals VxLAN VTEP tunnel, each VTEP corresponding virtual machine, and a proxy server, the method is applied source VTEP end, including:

[0021] 接收私网侧虚拟机发送的非已知单播报文; [0021] The non-receiving-side virtual private network sends a known unicast packet;

[0022] 将该非已知单播报文以单播方式发送给代理服务器,以使代理服务器将该非已知单播报文通过VxLAN隧道单播发送给目标VTEP。 [0022] The known non-unicast packets sent in unicast to the proxy server, the proxy server so that the non-known unicasts VxLAN by unicast tunnel to the target VTEP.

[0023] 本发明还提供了一种虚拟扩展局域网报文的处理装置,该虚拟扩展局域网VxLAN 包括多个VxLAN隧道终端VTEP以及代理服务器,该装置应用于代理服务器,包括: [0023] The present invention also provides an extended virtual LAN packet processing apparatus, a virtual extension of the local area network comprising a plurality of VxLAN VxLAN tunnel end VTEP and proxy servers, the proxy device is applied, comprising:

[0024] 建立单元,用于与各个VTEP间建立VxLAN隧道; [0024] establishing means for establishing a tunnel between the respective VxLAN the VTEP;

[0025] 发送单元,用于接收源VTEP发送的非已知单播报文,根据该非已知单播报文携带的VxLAN标识确定在该VxLAN内除源VTEP外所有的目标VTEP,并将该非已知单播报文发送给目标VTEP。 [0025] The sending unit, configured to receive a source of non-transmitted VTEP known unicast packet, determining all of the target VTEP in addition to the source VTEP VxLAN based on the non-known unicasts carried VxLAN identifier, and the non- It is known unicast packets sent to the target VTEP.

[0026] 优选地,所述建立单元进一步用于: [0026] Preferably, the establishing unit is further configured to:

[0027] 接收各个VTEP发送的注册报文,所述注册报文携带该VTEP的IP地址和至少一个VxLAN标识;对自身所配置的多个VxLAN标识的集合与所述注册报文携带的所述至少一个VxLAN标识的集合取交集运算; [0027] each VTEP receiving messages transmitted register, the registration packet carries an IP address and at least one VTEP VxLAN identifier; VxLAN set of the plurality of identification register itself configured packet carries the identifying at least one set of intersected VxLAN operation;

[0028] 在交集运算为真时,与各个VTEP建立VxLAN隧道,并根据交集匹配的VxLAN保存该VxLAN标识所对应的VTEP关系表。 [0028], based on the intersection operation is true VTEP VxLAN respective tunnel, and the relationship table stored VTEP VxLAN identifier corresponding to the intersection of matching according VxLAN.

[0029] 优选地,所述发送单元进一步用于, [0029] Preferably, the sending unit is further configured to,

[0030] 接收源VTEP通过单播方式发送的非已知单播报文; [0030] Non VTEP receives source transmitted through unicast known unicast packets;

[0031] 根据非已知单播报文中携带的VxLAN标识,以及预先保存的该VxLAN标识所对应的VTEP关系表,确定在该VxLAN内除源VTEP外所有的目标VTEP ; [0031] The non-known unicast packet table VTEP carried VxLAN identifier and the pre-stored identification VxLAN corresponding, source in addition to determining all of the target within the VTEP outer VTEP VxLAN;

[0032] 根据所述目标VTEP的目的IP地址,对该非已知单播报文进行复制,将复制后的非已知单播报文的目的地址修改为所述目标VTEP的IP地址并封装;利用与各个目标VTEP间的VxLAN隧道将修改后的非已知单播报文发送给对应的目标VTEP。 [0032] The destination IP address of the target VTEP, that non known unicasts copy, the copied non-known unicast packet destination address is the IP address of the target modified VTEP and packaging; use known non-unicast packets and transmits the VxLAN VTEP tunnel between the target to be modified corresponding to the respective target VTEP.

[0033] 优选地,所述装置还包括: [0033] Preferably, said apparatus further comprising:

[0034] 删除单元,用于在接收到VTEP发送的退出请求报文时,确定该VTEP的VxLAN标识,并将该VxLAN内与该VTEP间的VxLAN隧道删除。 [0034] The deleting unit, when receiving the withdraw request sent VTEP packet identifier of the determined VxLAN VTEP, and deleting the tunnel between VxLAN VTEP within the VxLAN.

[0035] 本发明还提供了一种虚拟扩展局域网报文的处理装置,该虚拟扩展局域网内包括多个VxLAN隧道终端VTEP、每个VTEP对应的虚拟机以及代理服务器,该装置应用于源VTEP 端,包括: [0035] The present invention also provides an extended virtual LAN packet processing apparatus, in the virtual local area network includes a plurality of extension terminals VxLAN VTEP tunnel, each VTEP corresponding virtual machines and the proxy server, the device is applied to the source terminal VTEP ,include:

[0036] 接收单元,用于接收私网侧虚拟机发送的非已知单播报文; [0036] The receiving means for receiving a non-virtual private network side sends a known unicast packet;

[0037] 发送单元,用于将该非已知单播报文以单播方式发送给代理服务器,以使代理服务器将该非已知单播报文通过VxLAN隧道单播发送给目标VTEP。 [0037] transmitting unit for the known non-unicast packets sent in unicast to the proxy server, the proxy server so that the non-known unicasts VxLAN by unicast tunnel to the target VTEP.

[0038] 本发明实施例提供了一种虚拟扩展局域网报文的处理方法及装置,通过在虚拟扩展局域网内增加代理服务器,在源VTEP接收到非已知单播报文时,以单播方式发送给该代理服务器,利用代理服务器对该非已知单播报文进行复制和转发,由于代理服务器只修改了非已知单播报文的目的地址,并未对复制后的非已知单播报文的源IP地址进行改变,因此,目标VTEP在接收非已知单播报文之后,该非已知单播报文的源IP地址还是源VTEP的IP地址,因此目标VTEP仍然认为非已知单播报文是从源VTEP过来的,而不是从代理服务器过来。 [0038] When the embodiment provides a method and apparatus for processing a virtual extended LAN packets, the proxy server by adding virtual local area network expansion, in a non-source receiving VTEP known unicasts the present invention, the transmission in unicast mode to the proxy server, use proxy servers known to the non-unicast packet replication and forwards, only because the proxy server to modify the destination address of a known non-unicast packets, not for non-known unicast the copied text source IP address change, therefore, the IP address after receiving a non-target VTEP known unicasts, the non-known unicast source IP address or source VTEP, and therefore continue to believe that non-target VTEP known unicast message is VTEP come from the source, rather than coming from the proxy server. 由于VTEP设备间的非已知单播报文大部分由代理服务器进行转发,因此大大节省了VTEP设备间的网络资源。 Due to the non-VTEP between devices known unicasts most forwarded by the proxy server, thus saving the network resources across VTEP equipment.

附图说明 BRIEF DESCRIPTION

[0039] 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍,显而易见地,下面描述中的附图是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。 [0039] In order to more clearly illustrate the technical solutions in the embodiments or the prior art embodiment of the present invention, the accompanying drawings for illustrating the prior art described or needed to be used in an embodiment will be briefly introduced hereinafter, the description below the figures show some embodiments of the present invention, those of ordinary skill in the art is concerned, without creative efforts, can derive from these drawings other drawings.

[0040] 图1是现有的VxLAN网络结构示意图; [0040] FIG. 1 is a schematic diagram of a conventional network structure VxLAN;

[0041] 图2是本发明实施例提供的VxLAN网络结构示意图; [0041] FIG. 2 is a schematic structural diagram of a network VxLAN embodiment of the present invention;

[0042] 图3是本发明实施例提供的虚拟扩展局域网报文的处理方法流程图; [0042] FIG. 3 is a flowchart of embodiments of virtual extended LAN packet processing method of the embodiment of the present invention;

[0043] 图4是本发明实施例提供的多个VxLAN分别与多个VTEP连接状态示意图; [0043] FIG. 4 is a plurality VxLAN embodiment of the present invention is provided with a plurality of respectively a schematic view of a connection state VTEP;

[0044] 图5是本发明另一实施例提供的虚拟扩展局域网报文的处理方法流程图; [0044] FIG. 5 is a flowchart of embodiments of virtual extended LAN packet processing method according to another embodiment of the present invention;

[0045] 图6是本发明另一实施例提供的虚拟扩展局域网报文的处理方法流程图; [0045] FIG. 6 is a flowchart of embodiments of virtual extended LAN packet processing method according to another embodiment of the present invention;

[0046] 图7是本发明实施例提供的装置运行的硬件环境架构图; [0046] FIG. 7 is a device for operating a schematic diagram of a hardware environment according to an embodiment of the present invention;

[0047] 图8是本发明实施例提供的装置结构示意图; [0047] FIG. 8 is a schematic structural diagram of the apparatus embodiment of the present invention;

[0048] 图9是本发明另一实施例提供的装置运行的硬件环境架构图; [0048] FIG. 9 is an embodiment of the present invention to provide apparatus operating environment of the hardware architecture view of another embodiment;

[0049] 图10是本发明另一实施例提供的装置结构示意图。 [0049] FIG. 10 is a schematic structural diagram of a device of another embodiment of the present invention.

具体实施方式 Detailed ways

[0050] 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,所描述的实施例仅是本发明一部分实施例,而不是全部的实施例。 [0050] below in conjunction with the present invention in the accompanying drawings, technical solutions of embodiments of the present invention are clearly and completely described, obviously, the described embodiments are merely part of embodiments of the present invention, but not all embodiments example. 基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。 Based on the embodiments of the present invention, all other embodiments of ordinary skill in the art without any creative effort shall fall within the scope of the present invention.

[0051] 为了使得本发明实施例提供的方案更加容易理解,下面结合图2、图3、图4说明本发明虚拟扩展局域网报文的处理方法。 [0051] In order that the solution provided by the embodiment of the present invention is more readily understood in conjunction with FIG 2, FIG 3, FIG 4 illustrates a method of processing LAN packets of a virtual extension of the present invention. 与现有的技术相比,本发明在现有虚拟扩展局域网络中增加一台代理服务器,如图2所示,当源VTEP将接收到非已知单播报文时,首先将该报文以单播方式发送给与之建立VxLAN隧道的代理服务器,通过该代理服务器对该非已知单播报文进行复制,并将复制后的非已知单播报文再分别以单播方式通过VxLAN隧道发送给该虚拟扩展局域网内除源VTEP之外的其他目标VTEP2、VTEP3。 Compared with the prior art, the present invention adds a virtual extension of an existing proxy server local area network, shown in Figure 2, when the source VTEP received when a known non-unicast packet, the packet is first to transmitting unicast to the proxy server VxLAN with the establishment of the tunnel, by the proxy server copy known unicasts the non, and after copying known non-unicast packets are then sent through the tunnel in a unicast manner VxLAN in addition to other target VTEP2 source VTEP in the virtual local area network expansion, VTEP3. 而源VTEP对于接收到的已知单播报文,则继续通过现有的方式进行转发。 VTEP and the source for the received known unicast packet forwarding is continued by a conventional manner.

[0052] 如图3所示,为本发明实施例提供的一种虚拟扩展局域网报文的处理方法,该虚拟扩展局域网内包括多个VxLAN隧道终端VTEP以及至少一个代理服务器,该方法应用于代理服务器,包括: [0052] FIG. 3, the present method of processing LAN packets of a virtual extension of one kind to an embodiment of the invention, comprising a plurality of terminals VTEP VxLAN tunnels and at least one proxy server extension in the virtual local area network, the method applied to the agent server, including:

[0053] 步骤301 :代理服务器与各个VTEP间建立可以发送VxLAN报文的VxLAN隧道。 [0053] Step 301: between proxy server and can send each VTEP establish VxLAN message VxLAN tunnel.

[0054] 在本发明实施例中,在VxLAN网络中增加了代理服务器,其中所述代理服务器具体可以是性能较高的网络设备或者是运行了具有VTEP功能软件的服务器。 [0054] In an embodiment of the present invention, the increase in VxLAN network proxy, wherein the proxy server may particularly be a high performance device or a network server running software having a function VTEP. 本发明主要利用该代理服务器对非已知单播VxLAN报文进行复制及转发,因此代理服务器首先需要与VxLAN网络中的VTEP建立VxLAN隧道以进行通信连接。 The main advantage of the present invention is a non-proxy server VxLAN known unicast forwarding packets copied and therefore first need to establish the proxy server VxLAN tunnel VxLAN VTEP network connection for communication. 其中,代理服务器与VTEP建立VxLAN 隧道的过程具体可以包括以下两种方式。 Among them, the process of establishing a proxy server VxLAN tunnel with VTEP specifically include the following two ways.

[0055] 第一种方式是:静态配置方式。 [0055] The first way is: a static configuration. 即代理服务器确定多个广播域(每个广播域即对应为一个VxLAN网络)标识,并与每个VxLAN标识对应的所有VTEP建立可以发送VxLAN报文的VxLAN隧道。 I.e. proxy server determines a plurality of broadcast domains (i.e. each corresponds to a broadcast domain VxLAN network) identity and establish VxLAN packets may be transmitted to each of all the VTEP VxLAN VxLAN tunnel corresponding to the identifier. 其中,建立的VxLAN隧道可以使VTEP对非已知单播报文的报文头进行封装,以及使代理服务器对接收到的该非已知单播报文进行解封装和再次封装。 The established VxLAN tunnel can VTEP known unicast packets are encapsulated non-header, and that the non-proxy server received known unicast packet encapsulation and de-encapsulation again.

[0056] 如图4所示,例如,代理服务器确定三个VxLAN标识,如VxLAN a、VxLAN b、VxLAN c,其中,VxLAN a 中可以包括VTEP 1、VTEP 2、VTEP3,VxLAN b 中可以包括VTEP 1、VTEP 3、 VTEP 4,VxLAN c可以包括VTEP1、VTEP 5。 [0056] As shown in FIG 4, for example, the proxy server determines three VxLAN identification, such as VxLAN a, VxLAN b, VxLAN c, wherein, A may comprise VxLAN VTEP 1, VTEP 2, VTEP3, VxLAN b may comprise VTEP 1, VTEP 3, VTEP 4, VxLAN c may include VTEP1, VTEP 5. 代理服务器与这些VxLAN中的VTEP 1、VTEP 2、 VTEP 3、VTEP 4、VTEP 5建立VxLAN隧道完成后,针对每个VxLAN保存对应的VTEP关系表项,其中,在该VTEP关系表项中,使用VTEP标识所对应的IP地址来标记VTEP,则该VTEP关系表项中包括VxLAN标识、VTEP标识所对应的IP地址。 VTEP these VxLAN proxy server in 1, VTEP 2, VTEP 3, after VTEP 4, VTEP 5 VxLAN tunnel establishment is complete, save for each VxLAN VTEP corresponding table entry, wherein the relationship entry VTEP using VTEP identify corresponding IP address mark VTEP, the relationship entry includes VTEP VxLAN identifier, VTEP identify corresponding IP address. 例如,代理服务器内保存的VTEP关系表如下表表1所示。 For example, saved in the proxy table entry VTEP table 1 shown below.

[0057] 表1 [0057] TABLE 1

[0058] [0058]

Figure CN104243269AD00071

[0059] 第二种方式是:自动发现机制。 [0059] The second way is: automatic discovery mechanism. 代理服务器作为服务器端,启动监听模式,VTEP作为客户端,当代理服务器监听到各个VTEP,接收各个VTEP发送的注册报文,其中该注册报文携带该VTEP的IP地址和至少一个VxLAN标识,代理服务器对自身所配置的多个VxLAN标识的集合与注册报文携带至少一个VxLAN标识的集合取交集运算,在该交集运算为真时, 则代理服务器与注册VTEP建立VxLAN隧道。 The proxy server as a server, start listening mode, VTEP as a client, when the proxy server listens to the respective VTEP, receiving registration messages each VTEP transmitted, wherein the register message carries the IP address of the VTEP and at least one VxLAN identification, agent VxLAN multiple servers configured to identify itself with the collection of registration packets carrying at least one VxLAN set identified intersected operation, when the intersecting operation is true, then the proxy and registration VTEP establish VxLAN tunnel. 其中,当注册VTEP属于多个VxLAN时,代理服务器与该VTEP仅建立一条VxLAN隧道,该建立的一条VxLAN隧道可以支持多个VxLAN。 Wherein when registering VTEP belong to more than VxLAN, proxy servers and establish the VTEP VxLAN only a tunnel, the tunnel establishment of a VxLAN can support multiple VxLAN. 代理服务器中保存每个VxLAN标识所对应的VTEP关系表,该VTEP关系表包括VxLAN标识、 VTEP标识所对应的IP地址。 Each proxy server saved VxLAN VTEP table identifies the corresponding relationship table including the VTEP VxLAN identification, VTEP identify corresponding IP address.

[0060] 如图4所示,管理侧预先为代理服务器配置了VxLAN标识,例如,为代理服务器配置的VxLAN标识为VxLAN a、VxLAN b、VxLAN c,则表明该代理服务器只对VxLAN a、VxLAN b、VxLAN c内的报文进行广播。 [0060] As shown in FIG. 4, the management-side preconfigured proxy server VxLAN identification, e.g., to identify VxLAN proxy configured for VxLAN a, VxLAN b, VxLAN c, it indicates that the proxy only VxLAN A, VxLAN b, packets from the broadcast VxLAN c.

[0061] 其中以代理服务器与VTEP1建立VxLAN隧道为例,VTEP 1向代理服务器发送的注册报文中携带的IP地址为IP1,以及至少一个VxLAN标识可以包括VxLAN a、VxLAN b和VxLAN c。 [0061] In an example wherein the tunnel establishment VxLAN proxy server VTEP1, VTEP 1 registration packet sent to the proxy server IP address carried IP1, and at least one identifier may comprise VxLAN VxLAN a, VxLAN b and VxLAN c. 因此代理服务器对自身的VxLAN标识(VxLAN a、VxLAN b、VxLAN c)与VTEP 1对应的VxLAN 标识(VxLANa、VxLAN b、VxLAN c)取交集运算,得到VxLAN a、VxLAN b、VxLAN c,因此该交集运算为真,则代理服务器与VTEP 1间建立一条VxLAN隧道,该一条VxLAN隧道可以支持在VxLAN a、VxLAN b、VxLAN c这三个VxLAN中使用。 Thus proxy server itself VxLAN identification (VxLAN a, VxLAN b, VxLAN c) intersected computing and VTEP 1 corresponding VxLAN identification (VxLANa, VxLAN b, VxLAN c), to give VxLAN a, VxLAN b, VxLAN c, so that the intersecting operation is true, then the proxy server and VTEP build a tunnel between VxLAN 1, the tunnel can support the use of a VxLAN in VxLAN a, VxLAN b, VxLAN c VxLAN in three. 代理服务器内保存3条该VTEP 1对应的VTEP关系表项,即VxLANa、VxLAN b、VxLAN c分别对应的VTEP关系表项。 VTEP stored within the proxy relationship table entry corresponding to three VTEP. 1, i.e. VxLANa, VxLAN b, VxLAN c VTEP respectively corresponding relationship entries. 其中,代理服务器与其他VTEP间建立VxLAN隧道的方法与该代理服务器与VTEP1建立VxLAN 隧道的方法一致。 Among them, a consistent method for establishing VxLAN tunnel to the proxy server and the proxy server to establish a method VTEP1 VxLAN tunnels and other inter-VTEP.

[0062] 当代理服务器与其中一个VTEP之间的VxLAN隧道建立完成时,代理服务器需要将该VTEP的IP地址发送给先前与自身建立完成的属于同一VxLAN的其他VTEP,以使其他VTEP获知该VTEP成员。 [0062] When VxLAN tunnel between a proxy server and wherein VTEP created, the proxy server needs to send the IP address to the previously VTEP setup complete itself belong to the same VxLAN VTEP other so that the other known VTEP VTEP member.

[0063] 在本发明实施例中,若对于某一个VxLAN内的VTEP想要退出该VxLAN,则接收该退出的VTEP发送的退出请求,代理服务器根据该退出请求,将自身保存的该VxLAN对应的VTEP关系表中,该VTEP所对应的信息全部删除,并删除与该VTEP间的VxLAN隧道。 [0063] In an embodiment of the present invention, if the inner one of VxLAN VTEP want to quit the VxLAN, the receiver transmits the exit request VTEP exit, exit request to the proxy server according to the corresponding stored by the VxLAN VTEP table, the information corresponding to the VTEP delete all and delete VxLAN the tunnel between the VTEP. 若确定该VTEP退出所有的VxLAN或者下线,则将自身保存的所有VTEP关系表中该VTEP对应的信息全部删除,并删除与该VTEP间的VxLAN隧道。 If it is determined that the VTEP quit all VxLAN or offline, all VTEP table itself will be saved in the VTEP information corresponding to Remove All and remove VxLAN the tunnel between the VTEP. 在删除与该VTEP间的VxLAN隧道之后,还需要将该VTEP的退出信息通知给与该VTEP属于同一VxLAN内的其他目标VTEP。 After deleting VxLAN tunnel between the VTEP also need to inform the exit information is given to the VTEP VTEP belongs to the destination VTEP in the same VxLAN.

[0064] 步骤302:接收源VTEP发送的非已知单播报文,根据该非已知单播报文携带的VxLAN标识确定在该VxLAN内除源VTEP外所有的目标VTEP,并将该非已知单播报文发送给目标VTEP。 [0064] Step 302: receiving the transmission source VTEP non known unicast packets, all determined within the target VxLAN VTEP addition VTEP source based on the known non-unicast packet identifier carried VxLAN, and the known non- unicast packets sent to the target VTEP.

[0065] 如图2所示,为本发明提供的VxLAN网络结构示意图,该VxLAN中增加了一个代理服务器,该代理服务器接收源VTEP通过单播方式发送的非已知单播报文。 [0065] As shown, a schematic view of the network structure of the present invention provides VxLAN, which adds a VxLAN proxy server 2, the proxy server receives source non VTEP transmitted through unicast known unicast packets. 其中,该非已知单播报文具体可以为未知单播报文、广播报文或组播报文,这些类型的报文在VxLAN网络内需要进行广播发送,为了有效减轻VxLAN网络内各VTEP设备的网络负担,节省网络带宽, 在本发明中,当源VTEP接收到这些类型的报文时,将通过步骤301建立的VxLAN隧道单播给代理服务器。 Wherein the non-unicast packets is known to be particularly unknown unicast packet, a broadcast packet or multicast packet, these types of packets within the network need to be VxLAN broadcast transmission, in order to effectively reduce VxLAN within each network device VTEP network load, save network bandwidth, in the present invention, when the source of these types of VTEP received packet, at step 301 the establishment of the tunnel VxLAN unicast to the proxy server. 其中,代理服务器可以是性能较高的网络设备或者是运行了具有VTEP功能软件的服务器。 Among them, the proxy server may be a higher performance network equipment or running a server with VTEP features of the software.

[0066] 其中,代理服务器在接收到源VTEP发送的非已知单播报文时,确定该报文携带的VxLAN标识,根据自身所保存的针对该VxLAN的VTEP关系表,确定除源VTEP之外的目标VTEP。 [0066] wherein the proxy server upon receiving the non-transmission source VTEP known unicast packet, determining the packet identifier carried VxLAN The VTEP table itself stored for that VxLAN determine other outside source VTEP the goal VTEP. 例如,VTEP 1为源VTEP,假设接收VTEP1发送的报文所携带的VxLAN标识为VxLAN a,针对上述VxLAN a对应的VTEP关系表a,确定目标VTEP为VTEP 2、VTEP 3。 For example, VTEP 1 VTEP source, assuming VxLAN VTEP1 received identification message is sent carried VxLAN a, for the above VxLAN VTEP A corresponding table a, is determined as the target VTEP VTEP 2, VTEP 3.

[0067] 在代理服务器确定了该非已知单播报文的目标VTEP后,根据该目标VTEP的IP 地址,对该非已知单播报文进行复制,将复制后的非已知单播报文的目的地址修改为目标VTEP的IP地址。 After [0067] In the proxy server determines the non-target VTEP known unicast packets, according to the IP address of the target VTEP, that non known unicasts copy, after the copying of non-known unicasts modify the destination address is the IP address of the target VTEP. 例如,在图2所示的网络中,代理服务器对来自源VTEP1的非已知单播报文复制两份,一份非已知单播报文的目的IP地址为VTEP 2的IP地址,一份非已知单播报文的目的IP地址为VTEP 3的IP地址。 For example, in the network shown in FIG. 2, the proxy server from the source of non-unicast packets VTEP1 known two copies, a known non-unicast packet destination IP address is the IP address of the VTEP 2, a non- known unicasts the destination IP address is VTEP IP address 3. 然后对该两份报文进行封装,并利用与各个目标VTEP间的VxLAN隧道将修改后的非已知单播报文发送给对应的目标VTEP (VTEP2、VTEP3)。 Then the two packets are encapsulated using a corresponding target VTEP (VTEP2, VTEP3) to a known unicast packets and non-tunnel between the VxLAN VTEP will modify each target.

[0068] 根据上述方案,通过在虚拟扩展局域网内增加代理服务器,在源VTEP接收到非已知单播报文时,首先以单播方式发送给该代理服务器,利用代理服务器对该非已知单播报文进行复制,对复制后的非已知单播报文的目的地址修改为目标VTEP的IP地址,由于在此过程中未对该复制后非已知单播报文的源IP地址进行改变,因此在目标VTEP接收到该非已知单播报文后,目标VTEP仍然会认为报文是从源VTEP过来的,而不是从代理服务器过来。 [0068] According to the above embodiment, the proxy server by adding virtual local area network expansion, the known source VTEP when receiving a non-unicast packets, first sent in unicast to the proxy server, the proxy server by using the known non-single multicast packets replication, replication of the known non-unicast packet destination address for the IP address of the destination VTEP modified, since this process is not known after copying non-unicast packet to the source IP address changes, so in VTEP goal after receiving the non-known unicasts, target VTEP still think that the message is coming from the source VTEP, rather than coming from the proxy server. 这样,该非已知单播报文的源MAC地址也被目标VTEP学习到,并和源VTEP建立起VxLAN 隧道。 In this way, the non-known unicast source MAC address is also the target VTEP learned, and build and source VTEP VxLAN tunnel. 后续发送的已知单播报文将仍然由源VTEP直接发送,而不经过代理服务器。 Subsequently sent known unicasts sent by the source will remain VTEP directly, without passing through the proxy server. 另外, 由于VTEP设备间的非已知单播报文大部分由代理服务器进行转发,因此大大节省了VTEP 设备间的网络资源。 In addition, due to the non-VTEP between devices known unicasts most forwarded by the proxy server, thus saving the network resources across VTEP equipment.

[0069] 如图5所示,本发明提供了一种虚拟扩展局域网报文的处理方法,该虚拟扩展局域网内包括多个VxLAN隧道终端VTEP、每个VTEP对应的虚拟机、以及代理服务器,该方法应用于源VTEP端,包括: [0069] 5, the present invention provides a method of processing LAN packets of a virtual extension, in the virtual local area network includes a plurality of extension terminals VxLAN VTEP tunnel, each VTEP corresponding virtual machine, and a proxy server, VTEP method is applied to the source terminal, comprising:

[0070] 步骤501 :接收私网侧虚拟机发送的非已知单播报文。 [0070] Step 501: receiving-side virtual private network sends a known non-unicast packet.

[0071] 如图2所示,每个VTEP的私网侧可以连接多个服务器Server,且每个服务器可以包括多个虚拟机。 [0071] As shown in FIG 2, each of the private network may be connected to multiple servers VTEP Server, and it may include a plurality of each of the virtual machine server. 例如,服务器可以为电脑,虚拟机可以是每台电脑内的多个虚拟系统。 For example, the server can be a computer, a virtual machine can be multiple virtual systems within each computer. 虚拟机与虚拟机之间可以相互通过发送报文来达到传递消息。 Between virtual machines and the virtual machine can be achieved by passing messages to each other to send packets. 在本发明的实施例中,所述非已知单播报文具体为广播报文、未知单播报文或组播报文。 In an embodiment of the present invention, the non-specifically known unicasts broadcast packets, unknown unicast packet or multicast packet.

[0072] 步骤502 :将该非已知单播报文以单播方式发送给代理服务器,以使代理服务器将该报文通过VxLAN隧道单播发送给目标VTEP。 [0072] Step 502: The known non-unicast packets sent in unicast to the proxy server, the proxy server so that the packet by unicast tunnel to the target VxLAN VTEP.

[0073] 如图2所示,若VTEP1为源VTEP,VTEP1接收到的报文为非已知单播报文时,对于这些类型的报文在VxLAN网络内需要进行广播发送,为了有效减轻VxLAN网络内各VTEP设备的网络负担,节省网络带宽,在本发明中,增加代理服务器,VTEP1将该非已知单播报文通过VxLAN隧道以单播形式发送给代理服务器,由代理服务器负责对非已知单播报文的复制及转发。 [0073] 2, if the source VTEP1 VTEP, VTEP1 non-received packets to unicast packets is known, these types of packets need to be transmitted within VxLAN broadcast network, in order to effectively reduce the network VxLAN VTEP burden on network devices in, save network bandwidth, in the present invention, the proxy server increases, VTEP1 known in the non-unicast packets sent to the proxy server by unicast VxLAN tunnel, the proxy server is responsible for non-known single multicast packet replication and forwarding.

[0074] 由于在虚拟扩展局域网内,为了实现负载分担,也可以包括多个代理服务器,而管理层也可以为多个代理服务器配置的不同的VxLAN标识。 [0074] Since in a virtual local area network expansion, in order to achieve load balancing may include a plurality of proxy servers, and the management can be configured for a plurality of different proxy servers VxLAN identification. 因此为了报文的高效转发效率, 源VTEP确定接收到的报文对应的VxLAN标识(即该报文需要在该对应的VxLAN内进行广播),根据自身预先保存的多个代理服务器对应的多个VxLAN标识,将该非已知单播报文以单播形式发送给包括该VxLAN标识的代理服务器。 Thus for efficient packet forwarding efficiency of the source VTEP determine whether the received packets corresponding VxLAN identifier (i.e., the message needs to be broadcast within the corresponding VxLAN), according to the pre-stored plurality of proxy servers corresponding to the plurality of VxLAN identification, the non-known unicast message transmission in unicast mode to the proxy server comprises VxLAN identified. 例如,虚拟扩展局域网内包括代理服务器1、代理服务器2,其中管理层为代理服务器1配置的VxLAN标识为VxLAN a、VxLAN b,管理层为代理服务器2配置的VxLAN标识为VxLANc、VxLAN d。 For example, a virtual extension of the LAN 1 comprises a proxy server, the proxy server 2, which is a management proxy configuration identified as 1 VxLAN VxLAN a, VxLAN b, the management of the proxy server 2 is configured VxLAN identification VxLANc, VxLAN d. 因此VTEP1接收到该非已知单播报文后,确定该报文携带的VxLAN标识为VxLAN a,因此将该非已知单播报文发送给代理服务器1,以使代理服务器1对该非已知单播报文进行复制与转发。 Thus after receiving the non VTEP1 known unicast packet, the packet determining VxLAN identification is carried VxLAN A, so the non-known unicast message transmission server 1 to the proxy, the proxy server 1 so that the non-known unicast packets copying and forwarding.

[0075] 根据上述方案,在源VTEP接收到的报文为非已知单播报文时,可以不将该报文在自身进行复制,而是以单播方式将接收到的该非已知单播报文发送给新增加的代理服务器,以使代理服务器对该非已知单播报文进行复制和转发,因此,对源VTEP设备的性能没有限制,以及不需要三层组播方式,由于VTEP设备间资源大部分由代理服务器进行转发, 因此大大节省了VTEP设备间的网络资源。 [0075] According to the above-described embodiment, the source VTEP received packet is known that non-unicast packet, the packet may not be self-replication, but in unicast received the non-known single multicast packets sent to the proxy server newly added, so that the proxy server is known unicast packet and forwarding the non-copy, therefore, is not limited, and does not require the performance of three multicast source VTEP device, since the device VTEP most of the resources between forwarded by the proxy server, thus saving the network resources across VTEP equipment.

[0076] 如图6所示,本发明提供了一种虚拟扩展局域网报文的处理方法,如图2所示,该虚拟扩展局域网VxLAN内包括多个VxLAN隧道终端VTEP、每个VTEP对应的虚拟机以及代理服务器,该方法由代理服务器和源VTEP共同执行的,该方法可以包括以下步骤: [0076] As shown in FIG 6, the present invention provides a method for processing a virtual extension of the LAN packet, shown in Figure 2, a virtual extension of the local area network comprises a plurality of VxLAN VxLAN VTEP tunnel terminals, each corresponding to a virtual VTEP and a proxy server machine, and the process by the proxy server implemented jointly VTEP source, the method may comprise the steps of:

[0077] 步骤601 :VTEP1接收私网侧的虚拟机发送的非已知单播报文,该非已知单播报文可以为广播报文、未知单播报文或组播报文。 [0077] Step 601: Non-known unicasts VTEP1 receiving-side virtual private network sends, which may be non-known unicast packet is a broadcast packet, unknown unicast packets or multicast packets.

[0078] 步骤602 :VTEP1将该非已知单播报文通过与代理服务器之间建立的VxLAN隧道以单播方式发送给对应的代理服务器。 [0078] Step 602: VTEP1 the known non-unicast packets sent in unicast to the proxy server via the corresponding VxLAN tunnel established between the agent and server.

[0079] 如图2所示,每个VTEP均连接有多个虚拟机,如VTEP1连接有端口号为GE1/0/1 所对应的Serverl上的VM1、VM2和VM3,端口号GE1/02所对应的Server2上的VM4、VM5和VM6。 [0079] 2, each of the plurality of VTEP virtual machine is connected, as connected to the port number is VTEP1 GE1 / 0/1 Suo VM1 on Serverl corresponding, VM2 and VM3, port number GE1 / 02 Suo VM4 the corresponding Server2, VM5 and VM6.

[0080] VTEP1作为源VTEP,若VTEP1确定接收到已知单播报文,例如:该已知单播报文的源MAC地址为MAC1,目的MAC地址为MAC4,则VTEP1根据自身保存的私网侧的MAC关系表项,得到MAC4对应Server2的VM4,则VTEP1将该已知单播报文发送给VM4。 [0080] VTEP1 the VTEP as the source, determining if the received VTEP1 known unicast packets, for example: the known unicast source MAC address MACl, destination MAC address MAC4, according to the private network side VTEP1 stored in itself to MAC table entry, to give the corresponding MAC4 of the VM4 Server2, the VTEP1 the known unicast packets sent to VM4. 若该已知单播报文的目的MAC地址为MAC7,则VTEP 1根据自身保存的公网侧的MAC关系表项,确定MAC7对应VTEP2下的VM7,且VTEP2的IP地址为IP2,因此,VTEP1对该已知单播报文进行封装,封装后的已知单播报文的目的IP地址为VTEP2,并将该已知单播报文发给VTEP2,以使VTEP2 根据该已知单播报文,解析出其目的MAC为MAC7,从而将该已知单播报文发送给VM7。 If the known unicast destination MAC address MAC7, the relationship between the VTEP MAC entries stored according to their public network 1 side, corresponding to the determined MAC7 VM7 under VTEP2, and the IP address IP2 VTEP2 is, therefore, VTEP1 of the known unicast packet is encapsulated, the encapsulated known unicast packets VTEP2 destination IP address, and sent to the known unicasts VTEP2, so VTEP2 single multicast packet based on the known, which parses destination MAC MAC7, so that the known unicast packets sent to VM7.

[0081] 若VTEP1接收到的报文为非已知单播报文,对于这些类型的报文在VxLAN网络内需要进行广播发送,为了有效减轻VxLAN网络内各VTEP设备的网络负担,节省网络带宽, 在本发明中,增加代理服务器,VTEP1将该报文通过VxLAN隧道以单播形式发送给代理服务器,由代理服务器负责对报文的复制及转发。 [0081] When the received packet VTEP1 known non-unicast packet, for these types of packets need to be transmitted in a broadcast network VxLAN, in order to effectively reduce the network load in each apparatus VTEP VxLAN network, saving network bandwidth, in the present invention, increasing the proxy server, VTEP1 will send the message unicast to the proxy server by VxLAN tunnel, responsible for replication of packets and forwarded by the proxy server.

[0082] 步骤603 :代理服务器接收VTEP1发送的非已知单播报文,确定该非已知单播报文所在的VxLAN标识。 [0082] Step 603: The proxy server receives a non VTEP1 known unicast packets sent, identification of the non-determined VxLAN known unicasts located.

[0083] 步骤604 :根据预先保存的该VxLAN标识所对应的VTEP关系表项,确定该VxLAN内除VTEP 1之外的目标VTEP。 [0083] Step 604: according to the pre-stored identification VxLAN VTEP corresponding table entry, determining a target VTEP VTEP. 1 in addition to the VxLAN.

[0084] 例如,假设确定该报文在VxLAN a内,因此代理服务器确定的目标VTEP为VTEP2、 VTEP3,对应的目的地址为IP2、IP3。 [0084] For example, assume the packet is determined in VxLAN a, so the proxy server to determine the target VTEP VTEP2, VTEP3, corresponding destination address IP2, IP3.

[0085] 步骤605 :对该非已知单播报文进行复制,将复制后的非已知单播报文的目的地址修改为目标VTEP的IP地址并封装。 [0085] Step 605: the non-known unicasts copy, the copied non known unicasts modify the destination address of the IP address of the target VTEP and packaging.

[0086] 步骤606 :利用与目标VTEP间的VxLAN隧道将修改后的非已知单播报文以单播方式发送给对应的目标VTEP。 [0086] Step 606: VxLAN using the tunnel between the target and the non-modified VTEP known unicast packets transmitted in a unicast manner to the corresponding target VTEP.

[0087] 例如,VxLAN a内除VTEP1还包括VTEP2和VTEP3,因此代理服务器可以将接收到的非已知单播报文复制为两份,将复制的两个非已知单播报文分别发送给VTEP2和VTEP3, 也可以复制一份,将接收到的非已知单播报文和复制后的一个非已知单播报文分别发送给VTEP2和VTEP3。 [0087] For example, in addition to the VxLAN a VTEP1 and further comprising VTEP2 VTEP3, thus the proxy server may convert the received non-known unicasts replication of two, two non-copied to a known unicast packets respectively VTEP2 and VTEP3, can copy the received non-known unicasts after copying and a non-unicast packets are known to a VTEP2 and VTEP3. 复制后的非已知单播报文需要对目的地址进行修改,发送给VTEP2的非已知单播报文的目的地址修改为IP2,发送给VTEP3的非已知单播报文的目的地址修改IP3。 After copying the non-known unicasts need to modify the destination address is sent to a non-unicast packets VTEP2 known modify the destination address IP2, to a non-unicast packets VTEP3 known to modify the destination address IP3.

[0088] 步骤607 :目标VTEP接收修改后的非已知单播报文,对之进行解封装并根据自身保存的MAC地址对应关系表,将该修改后的非已知单播报文广播给自身私网侧的各个虚拟机,以使某个虚拟机在接收到该报文后确定该非已知单播报文是发送给自己的。 [0088] Step 607: the target non-modified received VTEP known unicasts, and for decapsulating the MAC address correspondence table stored by itself, the non-modified known unicasts private broadcasts to itself each virtual machine network side, so that a virtual machine is determined after receiving the packet non-known unicast packet is addressed to.

[0089] 在本发明实施例中,由于代理服务器只修改了非已知单播报文的目的地址,并未对复制后的非已知单播报文的源IP地址进行改变,因此,目标VTEP(VTEP2、VTEP3)在接收非已知单播报文之后,该报文的源IP地址还是IP1,因此目标VTEP仍然认为非已知单播报文是从源VTEP(VTEPl)过来的,而不是从代理服务器过来。 [0089] In an embodiment of the present invention, since the proxy server to modify the destination address only known non-unicast packet, not the non-unicast packet replicates the known IP address of the source changes, therefore, target the VTEP ( VTEP2, VTEP3) known after receiving a non-unicast packet, the packet's source IP address or IP1, and therefore continue to believe that non-target VTEP known unicast message is coming from a source VTEP (VTEPl), rather than from the proxy server come. 这样报文的MAC地址也被目标VTEP学习到,并和源VTEP建立起VxLAN隧道。 Such packets MAC address is also the target VTEP learned, and build and source VTEP VxLAN tunnel. 在后续过程中,若源VTEP接收到已知单播报文将仍然由源VTEP直接发送,而不经过代理服务器。 In the subsequent process, if the source VTEP known unicasts received directly from the source will remain VTEP, without passing through the proxy server. 另外,由于VTEP设备间的非已知单播报文大部分由代理服务器进行转发,因此大大节省了VTEP设备间的网络资源。 In addition, due to the non-VTEP between devices known unicasts most forwarded by the proxy server, thus saving the network resources across VTEP equipment.

[0090] 如图7、图8所示,本发明实施例提供了一种虚拟扩展局域网报文的处理装置,位于虚拟扩展局域网中,该虚拟扩展局域网VxLAN内包括多个VxLAN隧道终端VTEP以及代理服务器。 [0090] FIG. 7, FIG. 8, an embodiment of the present invention provides a processing apparatus for a virtual extended LAN packets, a virtual extension of the local area network is located, a virtual extension of the local area network comprising a plurality of VxLAN VxLAN agent and the tunnel end VTEP server. 装置实施例可以通过软件实现,也可以通过硬件或者软硬件结合的方式实现。 Apparatus embodiments may be implemented by software may be realized by way of hardware or a combination of hardware and software. 从硬件层面而言,如图7所示,为本发明实施例装置所在设备的一种硬件结构图,除了图7所示的CPU、内存、网络接口、以及非易失性存储器之外,实施例中装置所在的设备可能还可以包括其他硬件,如负责处理报文的转发芯片等等。 As shown in FIG 7 from the hardware level in terms of a hardware configuration diagram of an apparatus where the apparatus embodiment of the present invention, in addition to the CPU, memory, network interface, and a nonvolatile memory shown in FIG. 7, embodiment embodiment where the apparatus may be apparatus may also include other hardware, such as handles and the like packet forwarding chip. 以软件实现为例,如图8所示,作为一个逻辑意义上的装置,是通过其所在设备的CPU将非易失性存储器中对应的计算机程序指令读取到内存中运行形成的。 Implemented in software, for example, as shown in Figure 8, the apparatus as a logical sense, the non-volatile memory is a corresponding computer program instructions readable by the CPU device to which it is running in memory formation. 本实施例提供的虚拟扩展局域网报文的处理装置80包括: This embodiment provides a virtual extension of the LAN packet processing device 80 comprises:

[0091] 建立单元801,用于与各个VTEP间建立VxLAN隧道; [0091] The establishing unit 801 for establishing a tunnel between the respective VxLAN the VTEP;

[0092] 发送单元802,用于接收源VTEP发送的非已知单播报文,根据该非已知单播报文携带的VxLAN标识确定在该VxLAN内除源VTEP外所有的目标VTEP,并将该非已知单播报文发送给目标VTEP。 [0092] The sending unit 802 configured to receive a source of non-transmitted VTEP known unicasts, all determined within the target VxLAN VTEP addition VTEP source based on the known non-unicast packet identifier carried VxLAN, and the Not a known unicast packets sent to the target VTEP.

[0093] 进一步的,所述建立单元,用于接收各个VTEP发送的注册报文,所述注册报文携带该VTEP的IP地址和至少一个VxLAN标识;对自身所配置的多个VxLAN标识的集合与所述注册报文携带的至少一个VxLAN标识的集合取交集运算;在交集运算为真时,与所述交集运算值的VxLAN标识所对应的VTEP建立VxLAN隧道,并保存交集匹配的VxLAN标识所对应的VTEP关系表。 [0093] Further, the establishing unit for receiving registration messages sent by each VTEP, the registration message carries the IP address and at least one of the VTEP VxLAN identifier; VxLAN set of a plurality of configuration identifying itself and taking at least one set of said identified register VxLAN packet carries intersection calculation; VxLAN tunnel establishment is true, the intersection operator identifier value corresponding VxLAN VTEP the intersecting operation, and saves the intersection identifying matching VxLAN VTEP corresponding table.

[0094] 进一步的,所述发送单元,具体用于接收源VTEP通过单播方式发送的非已知单播报文,其中,该非已知单播报文为广播报文、未知单播报文或组播报文;根据非已知单播报文中携带的VxLAN标识,以及预先保存的该VxLAN标识所对应的VTEP关系表,确定在该VxLAN内除源VTEP外所有的目标VTEP ;根据所述目标VTEP的目的IP地址,对该非已知单播报文进行复制,将复制后的非已知单播报文的目的地址修改为,所述目标VTEP的IP地址并封装;利用与各个目标VTEP间的VxLAN隧道将修改后的非已知单播报文发送给对应的目标VTEP。 [0094] Further, the transmitting unit is configured to receive a source of non-VTEP transmitted through unicast known unicast packet, wherein the packet is a known unicast non-broadcast packets, unknown unicast packets or groups multicast packets; non known unicasts carried VxLAN identifier and VTEP the pre-stored table corresponding to the identification VxLAN determined in the target VTEP VxLAN all other external source VTEP; in accordance with the target VTEP destination IP address, the non-known unicasts copy, the copied non-known unicast destination address of the packet is modified, the IP address of the target package and VTEP; VxLAN tunnel between the respective target using VTEP the non-modified known unicast packet is sent to the corresponding target VTEP.

[0095] 进一步的,所述装置还包括: [0095] Further, the apparatus further comprising:

[0096] 删除单元803,用于在接收到VTEP发送的退出请求报文时,确定该VTEP的VxLAN 标识,并将该VxLAN内与该VTEP间的VxLAN隧道删除。 [0096] deleting unit 803, when receiving the withdraw request sent VTEP packet identifier of the determined VxLAN VTEP, and deleting the tunnel between VxLAN VTEP within the VxLAN.

[0097] 如图9、图10所示,本发明实施例提供了一种虚拟扩展局域网报文的处理装置, 位于虚拟扩展局域网中,该虚拟扩展局域网VxLAN内包括多个VxLAN隧道终端VTEP、每个VTEP对应的虚拟机、以及代理服务器。 [0097] FIG 9, FIG 10, an embodiment is provided an extended virtual LAN packet processing apparatus, a virtual extension of the local area network is located, a virtual extension of the LAN terminal VxLAN VTEP VxLAN tunnel comprises a plurality of the present invention, each VTEP a corresponding virtual machine, and proxy servers. 装置实施例可以通过软件实现,也可以通过硬件或者软硬件结合的方式实现。 Apparatus embodiments may be implemented by software may be realized by way of hardware or a combination of hardware and software. 从硬件层面而言,如图9所示,为本发明实施例装置所在设备的一种硬件结构图,除了图9所示的CPU、内存、网络接口、以及非易失性存储器之外,实施例中装置所在的设备可能还可以包括其他硬件,如负责处理报文的转发芯片等等。 From the hardware level, shown in Figure 9, where the device A hardware configuration diagram of apparatus according to the present embodiment of the invention, in addition to the CPU, memory, network interface, and a nonvolatile memory shown in Figure 9, embodiment embodiment where the apparatus may be apparatus may also include other hardware, such as handles and the like packet forwarding chip. 以软件实现为例,如图10所示,作为一个逻辑意义上的装置,是通过其所在设备的CPU将非易失性存储器中对应的计算机程序指令读取到内存中运行形成的。 Implemented in software, for example, as shown, as a device on the logical sense, the CPU is the device corresponding to the non-volatile memory of the computer program instructions by which it is read into the memory 10 is formed to run. 本实施例提供的虚拟扩展局域网报文的处理装置100包括: Processing apparatus provided in this embodiment a virtual extension of the LAN packet 100 comprises:

[0098] 接收单元1001,用于接收私网侧虚拟机发送的非已知单播报文; [0098] The receiving unit 1001, configured to receive a virtual private network sends a non-unicast packet are known;

[0099] 发送单元1002,用于将该非已知单播报文以单播方式发送给代理服务器,以使代理服务器将该非已知单播报文通过VxLAN隧道单播发送给目标VTEP。 [0099] transmitting unit 1002, for the known non-unicast packets sent in unicast to the proxy server, the proxy server so that the non-known unicasts VxLAN by unicast tunnel to the target VTEP.

[0100] 以上所述仅为本发明的较佳实施例而已,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,均应包含在本发明保护的范围之内。 [0100] The foregoing is only preferred embodiments of the present invention but are not intended to limit the present invention, all within the spirit and principle of the present invention, any changes made, equivalent substitutions and improvements should be included within the scope of protection of the present invention.

Claims (10)

1. 一种虚拟扩展局域网报文的处理方法,其特征在于,该虚拟扩展局域网包括多个VxLAN隧道终端VTEP以及代理服务器,该方法应用于代理服务器,包括: 所述代理服务器与各个VTEP间建立VxLAN隧道; 接收源VTEP发送的非已知单播报文,根据该非已知单播报文携带的VxLAN标识确定在该VxLAN内除源VTEP外所有的目标VTEP,并将该非已知单播报文发送给目标VTEP。 CLAIMS 1. A method for processing a virtual extension of the local area network packets, wherein a virtual extension of the local area network includes a plurality of terminals VTEP VxLAN tunnels and proxy servers, the method is applied proxy server, comprising: the proxy server establishing between each VTEP VxLAN tunnel; non-reception of the transmission source VTEP known unicast packets, known unicasts VxLAN identifier carried in determining all of the target VTEP except in the VxLAN VTEP source, and the non-unicast packets based on the known non- to the target VTEP.
2. 根据权利要求1所述的方法,其特征在于,所述与各个VTEP间建立VxLAN隧道,具体包括: 接收各个VTEP发送的注册报文,所述注册报文中携带该VTEP的IP地址和至少一个VxLAN标识; 对自身所配置的多个VxLAN标识的集合与所述注册报文携带的所述至少一个VxLAN标识的集合取交集运算; 在交集运算为真时,与各个VTEP建立VxLAN隧道,并根据交集匹配的VxLAN保存该VxLAN标识所对应的VTEP关系表。 2. The method according to claim 1, characterized in that said tunnel establishing VxLAN between each VTEP, comprises: receiving registration messages sent by each VTEP, the registration packet contains the IP address and the VTEP identifying at least one VxLAN; plurality VxLAN configured to identify itself to the register set of the set of messages carried on the intersection operation of the at least one identification VxLAN; in intersecting operation is true, and the respective VTEP VxLAN established tunnel, and save the VxLAN VTEP table identifies the corresponding matching VxLAN according intersection.
3. 根据权利要求1所述的方法,其特征在于,所述代理服务器将该非已知单播报文发送给目标VTEP,具体包括: 根据非已知单播报文中携带的VxLAN标识,以及预先保存的该VxLAN标识所对应的VTEP关系表,确定在该VxLAN内除源VTEP外所有的目标VTEP ; 根据所述目标VTEP的目的IP地址,对该非已知单播报文进行复制,将复制后的非已知单播报文的目的地址修改为所述目标VTEP的IP地址并封装; 利用与各个目标VTEP间的VxLAN隧道将修改后的非已知单播报文发送给对应的目标VTEP。 3. The method according to claim 1, wherein said non-proxy server the known unicasts the VTEP sent to the target, comprises: The non VxLAN known unicast packet identifier carried in, and stored in advance the identification of VxLAN VTEP corresponding relationship table, determining all of the target within the VTEP VxLAN other outside source VTEP; destination IP address of the target VTEP, that non known unicasts replication, after the replication known non-unicast packet destination address is the IP address of the target modified VTEP and packaging; non-use and after VxLAN VTEP tunnel between the respective target modification known unicast packets sent to the target corresponding to VTEP.
4. 根据权利要求1所述的方法,其特征在于,所述方法还包括: 在接收到VTEP发送的退出请求报文时,确定该VTEP的VxLAN标识,并将该VxLAN内与该VTEP间的VxLAN隧道删除。 4. The method according to claim 1, wherein said method further comprises: upon receiving the request sent VTEP exit message, the identifier of the determined VxLAN VTEP, and between the inner and the VxLAN the VTEP VxLAN tunnel deleted.
5. -种虚拟扩展局域网报文的处理方法,其特征在于,该虚拟扩展局域网内包括多个VxLAN隧道终端VTEP、每个VTEP对应的虚拟机、以及代理服务器,该方法应用于源VTEP端, 包括: 接收私网侧虚拟机发送的非已知单播报文; 将该非已知单播报文以单播方式发送给代理服务器,以使代理服务器将该非已知单播报文通过VxLAN隧道单播发送给目标VTEP。 5. - kind of a virtual extension of the LAN packet processing method, characterized by comprising a plurality of terminals VxLAN VTEP tunnel extended in the virtual local area network, a virtual machine corresponding to each VTEP, and proxy servers, the method is applied VTEP source terminal, comprising: receiving a non-virtual private network side sends a known unicast packet; the non-known unicast message transmission in unicast to the proxy server, the proxy server so that the non-unicast packet via known single tunnel VxLAN advertised to the target VTEP.
6. -种虚拟扩展局域网报文的处理装置,其特征在于,该虚拟扩展局域网VxLAN包括多个VxLAN隧道终端VTEP以及代理服务器,该装置应用于代理服务器,包括: 建立单元,用于与各个VTEP间建立VxLAN隧道; 发送单元,用于接收源VTEP发送的非已知单播报文,根据该非已知单播报文携带的VxLAN标识确定在该VxLAN内除源VTEP外所有的目标VTEP,并将该非已知单播报文发送给目标VTEP。 6. - kind of a virtual extension of the LAN packet processing device, wherein a virtual extension of the local area network comprising a plurality of VxLAN VxLAN tunnel end VTEP and proxy servers, the proxy device is applied, comprising: a setup unit for the respective VTEP establishing a tunnel between VxLAN; transmitting means for transmitting the non-reception of the source VTEP known unicast packet, determining all of the target VTEP in addition to the source VTEP VxLAN based on the non-known unicasts carried VxLAN identifier, and the non-known unicast message sent to the target VTEP.
7. 根据权利要求6所述的装置,其特征在于,所述建立单元进一步用于: 接收各个VTEP发送的注册报文,所述注册报文携带该VTEP的IP地址和至少一个VxLAN标识;对自身所配置的多个VxLAN标识的集合与所述注册报文携带的所述至少一个VxLAN标识的集合取交集运算; 在交集运算为真时,与各个VTEP建立VxLAN隧道,并根据交集匹配的VxLAN保存该VxLAN标识所对应的VTEP关系表。 7. The device according to claim 6, wherein the establishing unit is further configured to: receive the respective registration messages transmitted VTEP, the registration packet carries an IP address and at least one VxLAN VTEP identifier; of identifying a set of a plurality of VxLAN itself configured with the set of packet carries at least one of said registered identified VxLAN intersected operation; at the intersecting operation is true, and the respective VTEP VxLAN established tunnel, and matches the intersection according VxLAN save VTEP table identifies the corresponding VxLAN.
8. 根据权利要求6所述的装置,其特征在于,所述发送单元进一步用于, 接收源VTEP通过单播方式发送的非已知单播报文; 根据非已知单播报文中携带的VxLAN标识,以及预先保存的该VxLAN标识所对应的VTEP关系表,确定在该VxLAN内除源VTEP外所有的目标VTEP ; 根据所述目标VTEP的目的IP地址,对该非已知单播报文进行复制,将复制后的非已知单播报文的目的地址修改为所述目标VTEP的IP地址并封装;利用与各个目标VTEP间的VxLAN隧道将修改后的非已知单播报文发送给对应的目标VTEP。 8. The apparatus according to claim 6, wherein the sending unit is further configured to receive a source VTEP transmitted by way of non-unicast known unicast packets; VxLAN identifying non-known unicast message carried in the and a pre-stored table VTEP VxLAN the corresponding identification, determine all outer target VTEP other sources within the VTEP VxLAN; destination IP address of the target VTEP, that non known unicasts copy, after copying the non-unicast packets it is known to modify the destination address of the target IP address and encapsulating VTEP; using known non-unicast packets and transmits the tunnel between VxLAN VTEP modified each target object corresponding to VTEP .
9. 根据权利要求6所述的装置,其特征在于,所述装置还包括: 删除单元,用于在接收到VTEP发送的退出请求报文时,确定该VTEP的VxLAN标识,并将该VxLAN内与该VTEP间的VxLAN隧道删除。 9. The apparatus according to claim 6, characterized in that said apparatus further comprising: a deleting unit, when receiving the withdraw request packet sent VTEP determining the identity VxLAN VTEP, and the inner VxLAN deleted VxLAN tunnel between the VTEP.
10. -种虚拟扩展局域网报文的处理装置,其特征在于,该虚拟扩展局域网内包括多个VxLAN隧道终端VTEP、每个VTEP对应的虚拟机以及代理服务器,该装置应用于源VTEP端, 包括: 接收单元,用于接收私网侧虚拟机发送的非已知单播报文; 发送单元,用于将该非已知单播报文以单播方式发送给代理服务器,以使代理服务器将该非已知单播报文通过VxLAN隧道单播发送给目标VTEP。 10. - kind of a virtual extension of the LAN packet processing apparatus, characterized by comprising a plurality of terminals VxLAN VTEP tunnel extended in the virtual local area network, a virtual machine corresponding to each VTEP and proxy servers, the apparatus VTEP applied to the source terminal, comprising : receiving means for receiving a non-virtual private network side sends a known unicast packet; transmitting means for the transmission of non-known unicast packets in unicast to the proxy server, so that the non-proxy server known unicasts VxLAN tunnel through a single broadcast to the target VTEP.
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