WO2017000604A1 - Procédé et appareil d'adressage de réseau virtuel - Google Patents

Procédé et appareil d'adressage de réseau virtuel Download PDF

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Publication number
WO2017000604A1
WO2017000604A1 PCT/CN2016/077740 CN2016077740W WO2017000604A1 WO 2017000604 A1 WO2017000604 A1 WO 2017000604A1 CN 2016077740 W CN2016077740 W CN 2016077740W WO 2017000604 A1 WO2017000604 A1 WO 2017000604A1
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Prior art keywords
virtual
local area
packet
area network
vid
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PCT/CN2016/077740
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English (en)
Chinese (zh)
Inventor
常亮
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中兴通讯股份有限公司
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Publication of WO2017000604A1 publication Critical patent/WO2017000604A1/fr

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    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/45—Network directories; Name-to-address mapping
    • 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]

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for addressing a virtual network.
  • VLAN virtual local area network
  • FIG. 1 is a schematic diagram of static configuration of a VLAN and a virtual network in the related art.
  • each virtual network has to occupy a physical VLAN, which is a waste of VLAN. Resources;
  • the physical VLAN is globally unable to distinguish between the clouds, which is not conducive to virtual network isolation; again, this internal mapping has different mapping methods between different systems, there is no uniform rule in configuration planning, and data planning is complicated.
  • the present invention provides a method and an apparatus for addressing a virtual network, which at least solves the problem that the physical VLAN resources of the virtual network are wasted in the related art, the physical VLANs cannot be distinguished, and the mapping data planning is complicated.
  • a method for addressing a virtual network including:
  • VID virtual local area network identifier
  • the carrying the virtual local area network identifier VID in the packet includes:
  • Marking by the virtual network format of the packet, a group corresponding to the VID, and marking a cloud domain and a virtual network index corresponding to the VID, where the group includes one of the following: stripping the CVLAN group No, keep the CVLAN group.
  • the parsing the packet, and sending the packet to a virtual local area network corresponding to the VID includes:
  • the packet is a stripped CVLAN group, and the identifier of the physical virtual local area network corresponding to the packet is stripped, and the packet is sent to the virtual local area network corresponding to the cloud domain and the virtual network index in the cloud.
  • the packet is a reserved CVLAN group, and the identifier of the physical virtual local area network corresponding to the packet is not stripped, and the packet is sent to the virtual local area network corresponding to the cloud domain and the virtual network index in the cloud.
  • a method for addressing a virtual network including:
  • VID virtual local area network identifier
  • the method before sending the packet of the user virtual local area network CVLAN, the method includes:
  • the carrying the virtual local area network identifier VID in the packet includes:
  • Marking by the virtual network format of the packet, a group corresponding to the VID, and marking a cloud domain and a virtual network index corresponding to the VID, where the group includes one of the following: stripping the CVLAN group No, keep the CVLAN group.
  • an addressing device for a virtual network including:
  • the receiving module is configured to receive a packet of the user virtual local area network (CVLAN) to the external network, where the packet carries a virtual local area network identifier (VID), and the VID is used to identify the user virtual local area network;
  • CVLAN virtual local area network
  • VIP virtual local area network identifier
  • the parsing and transmitting module is configured to parse the packet, and send the packet to a virtual local area network corresponding to the VID according to the parsing result.
  • the carrying the virtual local area network identifier VID in the packet includes:
  • Marking by the virtual network format of the packet, a group corresponding to the VID, and marking a cloud domain and a virtual network index corresponding to the VID, where the group includes one of the following: stripping the CVLAN group No, keep the CVLAN group.
  • the parsing and sending module includes:
  • the stripping unit is configured to strip the CVLAN group, strip the identifier of the physical virtual local area network corresponding to the packet, and send the packet to the virtual local area network corresponding to the cloud domain and the virtual network index in the cloud. .
  • a retaining unit configured to: in the packet retaining the CVLAN group, not stripping the identifier of the physical virtual local area network corresponding to the packet, and sending the packet to the virtual domain corresponding to the virtual domain index in the cloud domain and the cloud local area network.
  • an addressing device for a virtual network including:
  • the sending module is configured to send a packet of the user virtual local area network CVLAN, where the packet carries a virtual local area network identifier (VID), and the VID is used to identify the user virtual local area network.
  • VIP virtual local area network identifier
  • the device further includes:
  • Add a module and set the identifier of the physical network virtual network to be added to the packet.
  • the carrying the virtual local area network identifier VID in the packet includes:
  • Marking by the virtual network format of the packet, a group corresponding to the VID, and marking a cloud domain and a virtual network index corresponding to the VID, where the group includes one of the following: stripping the CVLAN group No, keep the CVLAN group.
  • the device receives the packet of the user's virtual local area network (CVLAN), and the packet carries the virtual local area network identifier (VID), the VID is used to identify the user's virtual local area network, parses the message, and sends the message to the result according to the parsing result.
  • the virtual local area network corresponding to the VID solves the waste of the physical VLAN resources of the virtual network.
  • the physical VLAN cannot be distinguished between the clouds, and the mapping data planning is complicated.
  • the physical VLAN resources of the virtual network are saved, and the physical physics between the clouds is distinguished. VLAN, unified mapping data planning.
  • FIG. 1 is a schematic diagram of static configuration of a VLAN and a virtual network in the related art
  • FIG. 2 is a flowchart 1 of a method for addressing a virtual network according to an embodiment of the present invention
  • FIG. 3 is a second flowchart of a method for addressing a virtual network according to an embodiment of the present invention.
  • FIG. 4 is a structural block diagram 1 of an addressing device of a virtual network according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram 2 of an addressing device of a virtual network according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a format of a CVLAN user virtual network according to a preferred embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a CVLAN 4-bit cloud domain virtual network format according to a preferred embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a CVLAN 8-bit cloud domain virtual network format according to a preferred embodiment of the present invention.
  • FIG. 9 is a schematic diagram of message incoming cloud addressing in accordance with a preferred embodiment of the present invention.
  • FIG. 10 is a schematic diagram of message clouding addressing in accordance with a preferred embodiment of the present invention.
  • FIG. 2 is a virtual network according to an embodiment of the present invention.
  • Step S202 receiving a packet of a user virtual local area network (CVLAN), where the packet carries a virtual local area network identifier (VID), and the VID is used to identify the user virtual local area network;
  • CVLAN virtual local area network
  • VIP virtual local area network identifier
  • Step S204 parsing the packet, and sending the packet to the virtual local area network corresponding to the VID according to the result of the parsing.
  • the device receives the packet of the user's virtual local area network (CVLAN), and the packet carries the virtual local area network identifier (VID), the VID is used to identify the user's virtual local area network, parses the message, and sends the message to the result according to the parsing result.
  • the virtual local area network corresponding to the VID solves the waste of the physical VLAN resources of the virtual network.
  • the physical VLAN cannot be distinguished between the clouds, and the mapping data planning is complicated.
  • the physical VLAN resources of the virtual network are saved, and the physical physics between the clouds is distinguished. VLAN, unified mapping data planning.
  • the virtual local area network identifier (VID) is carried in the packet, and the virtual network format of the packet is used to mark the group corresponding to the VID, and the cloud domain corresponding to the VID is marked.
  • the virtual network index in the cloud, wherein the group includes one of the following: stripping the CVLAN group and retaining the CVLAN group.
  • the packet is stripped of the CVLAN group, and the identifier of the physical virtual local area network corresponding to the packet is stripped, and the packet is sent to the virtual local area network corresponding to the virtual domain index in the cloud domain and the cloud.
  • the packet is a CVLAN group, and the identifier of the physical virtual local area network corresponding to the packet is not stripped, and the packet is sent to the virtual local area network corresponding to the virtual domain index in the cloud domain and the cloud.
  • FIG. 3 is a flowchart 2 of a method for addressing a virtual network according to an embodiment of the present invention. As shown in FIG. 3, the process includes the following steps. :
  • Step S302 Send a packet of the user virtual local area network (CVLAN) to the external network, where the message carries a virtual local area network identifier (VID), and the VID is used to identify the user virtual local area network.
  • CVLAN virtual local area network
  • VID virtual local area network identifier
  • the device sends a packet of the user's virtual local area network (CVLAN) to the external network, and the packet carries the virtual local area network identifier (VID).
  • VID virtual local area network identifier
  • the VID is used to identify the virtual local area network of the user, and the physical VLAN resource is wasted.
  • the cloud cannot be distinguished, and the problem of mapping data planning is complicated.
  • the physical VLAN resource of the virtual network is saved, the physical VLAN between the clouds is distinguished, and the mapping data plan is unified.
  • the identifier of the physical network virtual network is added to the packet.
  • the virtual local area network identifier (VID) is carried in the packet, and the virtual network format of the packet is used to mark the group corresponding to the VID, and the cloud domain corresponding to the VID is marked.
  • the virtual network index in the cloud, wherein the group includes one of the following: stripping the CVLAN group and retaining the CVLAN group.
  • module may implement a combination of software and/or hardware of a predetermined function.
  • apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 4 is a structural block diagram of an addressing device of a virtual network according to an embodiment of the present invention. As shown in FIG. 4, the device includes:
  • the receiving module 42 is configured to receive a packet of the user virtual local area network CVLAN, where the packet carries a virtual local area network identifier (VID), and the VID is used to identify the user virtual local area network;
  • VIP virtual local area network identifier
  • the parsing and transmitting module 44 is configured to parse the packet, and send the packet to the virtual local area network corresponding to the VID according to the result of the parsing.
  • the device receives the packet of the user's virtual local area network (CVLAN), and the packet carries the virtual local area network identifier (VID), the VID is used to identify the user's virtual local area network, parses the message, and sends the message to the result according to the parsing result.
  • the virtual local area network corresponding to the VID solves the waste of the physical VLAN resources of the virtual network.
  • the physical VLAN cannot be distinguished between the clouds, and the mapping data planning is complicated.
  • the physical VLAN resources of the virtual network are saved, and the physical physics between the clouds is distinguished. VLAN, unified mapping data planning.
  • the parsing and sending module 44 includes:
  • the stripping unit is configured to strip the CVLAN group and strip the identifier of the physical virtual local area network corresponding to the packet, and send the packet to the virtual local area network corresponding to the virtual domain index in the cloud domain and the cloud.
  • the retaining unit is configured to: in the message, the CVLAN group is reserved, and the identifier of the physical virtual local area network corresponding to the packet is not stripped, and the packet is sent to the virtual local area network corresponding to the virtual domain index in the cloud domain and the cloud.
  • FIG. 5 is a structural block diagram 2 of an addressing device of a virtual network according to an embodiment of the present invention. As shown in FIG. 5, the device includes:
  • the sending module 52 is configured to send a packet of the user virtual local area network (CVLAN) to the external network, where the packet carries a virtual local area network identifier (VID), and the VID is used to identify the user virtual local area network.
  • CVLAN virtual local area network
  • VIP virtual local area network identifier
  • the device sends a packet of the user's virtual local area network (CVLAN) to the external network, and the packet carries the virtual local area network identifier (VID).
  • VID virtual local area network identifier
  • the VID is used to identify the virtual local area network of the user, and the physical VLAN resource is wasted.
  • the cloud cannot be distinguished, and the problem of mapping data planning is complicated.
  • the physical VLAN resource of the virtual network is saved, the physical VLAN between the clouds is distinguished, and the mapping data plan is unified.
  • the method further includes: adding a module, and setting an identifier of the physical network virtual network to the packet.
  • FIG. 6 is a schematic diagram of a format of a CVLAN user virtual network according to a preferred embodiment of the present invention.
  • the protocol 802.1ad defines a user virtual network (CVLAN), which is the upper layer of the CVLAN. , used to distinguish different services of different users, can use this existing definition to give the meaning of the virtual network for the addressing of the virtual network.
  • CVLAN user virtual network
  • the preferred embodiment provides a virtual network addressing technique that does not monopolize physical VLANs (SVLANs).
  • the CVLAN identifier (VID) is used to represent the virtual area.
  • the proposed network resolves the addressing according to the virtual network format when the packet enters the cloud.
  • the virtual network format CVLAN tag is added.
  • the virtual network index can be repeated without using the cloud, and the virtual network can be effectively isolated
  • the non-VLAN tagged frame is defined by different groups to display the VID.
  • the VLAN (including SVLAN and CVLAN) tagged frames are not used.
  • the CVLAN is also defined in the group, as shown in Table 1.
  • the scope of the cloud domain in a network is the same, that is, the same network is either A or B, or Groups C and D.
  • Group A is a 4-bit cloud domain virtual network format, and the CVLAN group is stripped;
  • Group B is a 4-bit cloud domain virtual network format, and the CVLAN group is reserved;
  • Group C is an 8-bit cloud domain virtual network format, and the CVLAN group is stripped;
  • Group D is an 8-bit cloud domain virtual network format, and the CVLAN group is reserved;
  • FIG. 7 is a schematic diagram of a CVLAN 4-bit cloud domain virtual network format according to a preferred embodiment of the present invention.
  • the VID part in groups A and B is embodied in the following virtual network format, and the first 4 bits are defined as Cloud Domain. To distinguish between different network clouds, the last 8 bits are defined as virtual network indexes in the cloud.
  • FIG. 8 is a schematic diagram of a CVLAN 8-bit cloud domain virtual network format according to a preferred embodiment of the present invention, as shown in FIG. Considering that there are more clouds in some networks, but there are fewer virtual networks, the VIDs in the defined groups C and D are embodied in the following 8-bit cloud domain virtual network format.
  • the first 8 bits are defined as Cloud Domain, which is used to distinguish For the different network clouds, the last 4 bits are defined as the virtual network index in the cloud.
  • a virtual network addressing router VNet Router is deployed in the cloud, and is used for addressing resolution and routing processing of packets after the physical network port is stripped of the VLAN.
  • FIG. 9 is a schematic diagram of packet in-cloud addressing according to a preferred embodiment of the present invention.
  • CVALN is configured as a virtual network format group
  • parsing according to the above definition CVLAN find the corresponding virtual network to send the message to the corresponding virtual network. If it is group A and C, the CVLAN will be stripped before delivery. If it is group B and D, the CVLAN will not be stripped. Group B and Group D
  • the existing packets of the CVLAN are maintained.
  • the user layer can continue to use CVLANs to perform other service differentiation (such as the common service type). If the packet does not carry a CVLAN, it is processed according to the existing routing logic.
  • the specific steps include:
  • Step 1 The physical NIC receives two packets with the VLAN and CVLAN tags.
  • the legal physical VLAN ID of the VLAN is VLAN 0, and the CVLAN is the vnet 0 and vnet1 CVLAN of the domain domain 0.
  • the physical NIC will be Vlan0 stripping passes the message to the virtual network addressing router
  • Step 2 The virtual network addressing router VNet Router finds that both code streams carry the CVLAN tag.
  • the CVLAN of the virtual network format is enabled in the cloud domain, and the CVLAN is parsed according to the configured different group virtual network format, and the cloud domain identifier is found to be
  • the cloud domain continues to determine the virtual network part, and the packet of the vnet0 identified by the virtual network part is transmitted to the virtual network vnet0, and the packet of the vnet1 is transmitted to the virtual network vnet1.
  • Step 3 After receiving the packet, the virtual network processes according to the existing service processing manner.
  • FIG. 10 is a schematic diagram of packet cloud-out addressing according to a preferred embodiment of the present invention. As shown in FIG. 10, if an A or B group C VLAN is configured before the packet is sent out of the cloud, the virtual network format is added according to the above structure.
  • CVLAN chemical vapor deposition
  • Step 1 When the virtual network needs to send packets to the outside, the virtual network first sends the packet to the virtual network addressing router VNet Router, and the VNet Router sends the packet from vnet0 to the CVLAN label in the vnet0 format of the cloud domain Domain0.
  • the VNet Router sends the packet from vnet0 to the CVLAN label in the vnet0 format of the cloud domain Domain0.
  • the same vnte1 message is also tagged with CVALN and sent to the physical network card.
  • Step 2 The physical network card eth0 sends the packet to the external network after the packet is added to the local physical VLAN (Vlan0).
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • Embodiments of the present invention also provide a storage medium.
  • the foregoing storage medium may be Program code configured to store the method steps for performing the following embodiments:
  • the storage medium is further arranged to store program code for performing the method steps of the above-described embodiments above:
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the processor performs the method steps of the foregoing embodiments according to the stored program code in the storage medium.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • a packet of a user's virtual local area network is received, and the packet carries a virtual local area network identifier (VID), the VID is used to identify the user's virtual local area network, and the packet is parsed according to the parsing
  • the packet is sent to the virtual local area network corresponding to the VID, and the physical VLAN resource waste of the virtual network is solved.
  • the physical VLAN cannot be distinguished between the clouds, and the mapping data planning problem is complicated, thereby saving the physical VLAN resource of the virtual network. It distinguishes the physical VLAN between the clouds and unifies the mapping data plan.

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Small-Scale Networks (AREA)

Abstract

L'invention concerne un procédé et un appareil d'adressage de réseau virtuel. Dans le procédé, un message d'un réseau local virtuel de client (CVLAN) est reçu, le message transportant un identificateur de réseau local virtuel (VID), et le VID étant utilisé pour identifier le réseau local virtuel de client ; le message est analysé ; et le message est envoyé à un réseau local virtuel correspondant au VID selon le résultat d'analyse. La présente invention résout les problèmes selon lesquels des ressources de VLAN physique d'un réseau virtuel sont gaspillées, un VLAN physique entre des nuages ne peut pas être distingué, et la programmation de données de mappage est compliquée, économisant les ressources de VLAN physique du réseau virtuel, distinguant le VLAN physique entre des nuages, et unifiant la programmation de données de mappage.
PCT/CN2016/077740 2015-06-29 2016-03-29 Procédé et appareil d'adressage de réseau virtuel WO2017000604A1 (fr)

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CN201510371518.0A CN106331199B (zh) 2015-06-29 2015-06-29 虚拟网络的寻址方法及装置

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120250505A1 (en) * 2011-03-30 2012-10-04 Fujitsu Network Communications, Inc. Method and System for Writing to a VLAN Tag
CN102932342A (zh) * 2012-10-26 2013-02-13 华为技术有限公司 实现隔离多用户虚拟局域网的方法及网络设备
TW201338469A (zh) * 2011-12-22 2013-09-16 Ibm 用於網路光纖通道網路之靈活性及可擴縮之資料鏈路層流量控制
CN104158718A (zh) * 2014-08-25 2014-11-19 杭州华三通信技术有限公司 一种报文处理方法和装置
CN104303462A (zh) * 2012-07-30 2015-01-21 惠普发展公司，有限责任合伙企业 提供商桥接网络通信

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120250505A1 (en) * 2011-03-30 2012-10-04 Fujitsu Network Communications, Inc. Method and System for Writing to a VLAN Tag
TW201338469A (zh) * 2011-12-22 2013-09-16 Ibm 用於網路光纖通道網路之靈活性及可擴縮之資料鏈路層流量控制
CN104303462A (zh) * 2012-07-30 2015-01-21 惠普发展公司，有限责任合伙企业 提供商桥接网络通信
CN102932342A (zh) * 2012-10-26 2013-02-13 华为技术有限公司 实现隔离多用户虚拟局域网的方法及网络设备
CN104158718A (zh) * 2014-08-25 2014-11-19 杭州华三通信技术有限公司 一种报文处理方法和装置

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