WO2017206076A1 - Procédé et appareil d'expansion à grilles multiples - Google Patents

Procédé et appareil d'expansion à grilles multiples Download PDF

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Publication number
WO2017206076A1
WO2017206076A1 PCT/CN2016/084179 CN2016084179W WO2017206076A1 WO 2017206076 A1 WO2017206076 A1 WO 2017206076A1 CN 2016084179 W CN2016084179 W CN 2016084179W WO 2017206076 A1 WO2017206076 A1 WO 2017206076A1
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Prior art keywords
viu
gateway
virtual machine
backhaul
ospf
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PCT/CN2016/084179
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English (en)
Chinese (zh)
Inventor
郭晓阳
雷鹰
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华为技术有限公司
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Priority to PCT/CN2016/084179 priority Critical patent/WO2017206076A1/fr
Publication of WO2017206076A1 publication Critical patent/WO2017206076A1/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

Definitions

  • the present invention relates to the field of network technologies, and in particular, to a multi-gateway expansion method and apparatus.
  • Telecommunication network element cloudization refers to deploying traditional telecom network elements and applications based on physical chassis and boards to virtual data center servers in the form of software virtual machines (VMs) to provide various telecommunication services. .
  • VMs software virtual machines
  • telecom network elements and applications exist in the form of VMs rather than in the form of single boards on traditional telecommunication hardware.
  • Communication between network elements and network elements, and between different business processes within the same network element, is represented as communication between VMs.
  • the cloud platform needs to handle a large number of services. When the traffic is relatively large, a VM may not have sufficient forwarding capability.
  • the cloud automatically creates a new VM as a gateway to solve the problem of insufficient routing and forwarding capabilities. This is called "scale out”.
  • the gateway VM When the traffic is reduced, the gateway VM gradually migrates the routing and forwarding to a gateway VM for processing, and releases the other idle gateway VMs. When all the VMs on a physical machine are idle, the physical machine is shut down. Use this method to save on electricity bills. This is called “scale in”. Fast scale in/out can solve rapid deployment business and improve operational efficiency.
  • the operator provides a router to connect. At this time, the interfaces of multiple VMs are connected to the router.
  • the router must be configured with multiple different network segment interfaces for different VMs.
  • the present invention provides a multi-gateway expansion method and apparatus.
  • the method and apparatus provided by the present invention solve the problem that the multi-gateway expansion in the prior art consumes a large amount of port bandwidth of the operator router.
  • a multi-gateway expansion method is provided.
  • the gateway currently uses the first virtual machine to perform service processing, and when the amount of traffic to be processed by the gateway increases, the second virtual machine is enabled.
  • the method includes:
  • the gateway sets the next hop address when the second virtual interface unit VIU corresponding to the second virtual machine sends data to the first address, and the second VIU and the first VIU corresponding to the first virtual machine The address is the same; wherein the first address is a next hop address of the first VIU when transmitting data;
  • the gateway controls the second VIU to enable an open shortest path first OSPF subprocess, so that the second VIU uses the OSPF subprocess to advertise a local route;
  • the gateway After the gateway detects that the second VIU uses the local route advertised by the OSPF sub-process, forms a backhaul route according to the local route; when receiving the backhaul data sent to the second VIU, the backhaul route is The backhaul data is forwarded to the second VIU.
  • the method and the device provided by the embodiment of the present invention use the independent OSPF sub-thread to perform local route advertisement when each VM gateway is enabled. Therefore, only one network segment needs to be planned, one connection is completed, and subsequent multiple VM gateways are self-expanding.
  • the network segment is self-configured through independent OSPF sub-threads, which can achieve the purpose of expanding a large number of ports on one network segment, which greatly reduces the cost of customer operation and maintenance.
  • the method further includes:
  • the gateway detects a hello packet sent by any VIU to establish a neighbor relationship
  • the gateway determines whether the any VIU is set on the gateway, and if yes, deletes the hello packet; otherwise, the neighbor relationship of the any VIU is established according to the hello packet.
  • the multiple ospf processes between the local network segment interfaces are blocked and do not learn from each other, thereby avoiding each VM gateway publishing a local road with an independent OSPF sub-process.
  • the loop is formed by the loop.
  • a multi-gateway expansion method is provided.
  • the gateway currently uses the first virtual machine to perform service processing, and when the amount of traffic to be processed by the gateway increases, the second virtual machine is enabled.
  • the method includes:
  • the second virtual interface unit VIU corresponding to the second virtual machine After receiving the control command sent by the gateway, the second virtual interface unit VIU corresponding to the second virtual machine enables the open shortest path first OSPF subprocess;
  • the second VIU uses the OSPF sub-process to advertise a local route, so that the gateway forwards the backhaul data of the second VIU according to the local route; where the next hop address in the local route and the first The next hop address in the local route advertised by the first VIU corresponding to a virtual machine is the same.
  • the method further includes:
  • the second VIU receives the backhaul data, and extracts attribute information of the backhaul data; wherein the attribute information is used to indicate a destination VIU for sending the backhaul data;
  • the second VIU determines whether it is the destination VIU, and if not, forwards the backhaul data to the destination VIU according to the attribute information.
  • the attribute information is a triple or a quintuple of the backhaul data.
  • the gateway forwards the backhaul data confusion, the 3-tuple or 5-tuple in the backhaul data is extracted, so that the home device of the backhaul data is identified according to the 3-tuple or 5-tuple, and sent to the home device. . Thereby improving the accuracy of data forwarding.
  • a gateway is provided, where the gateway currently uses the first virtual machine to perform service processing, and when the amount of traffic to be processed by the gateway increases, the second virtual machine is enabled, and the gateway includes:
  • a setting module configured to set a next hop address when the second virtual interface unit VIU corresponding to the second virtual machine sends data to a first address, and the second VIU corresponds to the first virtual machine
  • the service address of a VIU is the same; wherein the first address is the first virtual machine corresponding to The next hop address of the first VIU when transmitting data;
  • control module configured to control the second VIU to enable an open shortest path first OSPF subprocess, so that the second VIU uses the OSPF subprocess to issue a local route;
  • a forwarding module configured to: after detecting that the second VIU uses the local route advertised by the OSPF sub-process, form a backhaul route according to the local route; and when receiving the backhaul data sent to the second VIU, pass the backhaul A route forwards the backhaul data to the second VIU.
  • the method further includes:
  • a blocking module configured to detect a hello packet sent by any VIU to establish a neighbor relationship; determine whether the any VIU is set on the gateway, and if yes, delete the hello packet; The hello packet establishes the neighbor relationship of any of the VIUs.
  • a fourth aspect provides a virtual interface unit, where the virtual interface unit VIU is disposed on a gateway, where the gateway currently uses the first virtual machine for service processing, and when the amount of traffic to be processed by the gateway increases, the second virtual is enabled.
  • the virtual machine port unit is a second virtual interface unit VIU corresponding to the second virtual machine, and specifically includes:
  • An enabling module configured to enable an open shortest path first OSPF subprocess after receiving a control command sent by the gateway
  • a publishing module configured to use the OSPF sub-process to issue a local route, so that the gateway forwards the backhaul data of the second VIU according to the local route; where the next hop address in the local route and the first The next hop address in the local route advertised by the first VIU corresponding to a virtual machine is the same.
  • the virtual interface unit further includes:
  • a forwarding module configured to receive the backhaul data, and extract attribute information of the backhaul data; wherein the attribute information is used to indicate a destination VIU of the backhaul data, and determine whether the self is the destination VIU, if No, the backhaul data is forwarded according to the attribute information to Said purpose VIU.
  • the forwarding module is further configured to extract a triplet or a quintuple of the backhaul data as the attribute information.
  • a gateway in a fifth aspect, includes: a router, a local area network switch, and a plurality of virtual machine hardware implementation modules, and each virtual machine hardware implementation module includes a virtual interface unit (VIU) and a virtual switching unit (VSU).
  • VIP virtual interface unit
  • VSU virtual switching unit
  • the gateway currently uses the first virtual machine for service processing.
  • the router or the protocol stack set in the local area network switch has the following functions:
  • the first address is a next hop address of the first VIU when transmitting data
  • a sixth aspect a computer readable storage medium storing program code for implementing the multi-gateway expansion method described in the first aspect or the second aspect, the program code comprising running first Aspect or the execution instruction for the multi-gateway expansion method described in the second aspect.
  • the method and the device provided by the embodiment of the present invention use the independent OSPF sub-thread to perform local route advertisement when each VM gateway is enabled. Therefore, only one network segment needs to be planned, one connection is completed, and subsequent multiple VM gateways are self-expanding.
  • the network segment is self-configured through independent OSPF sub-threads, thereby It can be achieved to expand the capacity of a large number of ports on one network segment, which greatly reduces the customer operation and maintenance costs.
  • FIG. 1 is a schematic flowchart of a multi-gateway expansion method according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a multi-gateway expansion method according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic flowchart of a multi-gateway expansion method according to Embodiment 3 of the present invention.
  • FIG. 4 is a schematic structural diagram of a system according to a method provided by an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a gateway according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of a virtual interface unit according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a gateway according to an embodiment of the present invention.
  • an embodiment of the present invention provides a multi-gateway expansion method.
  • the following embodiment is implemented by using a gateway according to an embodiment of the present invention.
  • the gateway currently uses the first virtual machine to perform service processing.
  • the second virtual machine is enabled when the amount of traffic to be processed by the gateway increases.
  • the method includes:
  • the gateway device when a virtual machine is enabled, the gateway device correspondingly enables a virtual The interface unit (VIU) and a virtual switch unit (VSU) implement the functions of the virtual machine.
  • the VSU and the VIU represent a single board.
  • the VIU is the interface board for data transmission.
  • the VSU is The virtual machine implements business processing. In order to achieve a large amount of business processing, multiple VIUs and VSUs can be set on the gateway, so that the gateway enables different numbers of VSUs and VIUs to implement different numbers of virtual machine scale in.
  • Step 101 The gateway sets the next hop address when the second VIU corresponding to the second virtual machine sends data to the first address, where the second VIU is the first VIU corresponding to the first virtual machine.
  • the service address is the same, and the first address is a next hop address when the first VIU corresponding to the first virtual machine sends data.
  • the gateway may be a telecommunications gateway and the telecommunications gateway has a LAN switch (LSW) and router functionality.
  • LSW LAN switch
  • Step 102 The gateway controls the second VIU to enable an Open Shortest Path First (OSPF) sub-process, so that the second VIU uses the OSPF sub-process to issue a local route.
  • OSPF Open Shortest Path First
  • the second VIU is controlled to enable the OSPF sub-process, and the sub-process is different from the OSPF sub-process used by the first VIU.
  • the first VIU and the second VIU use different OSPF sub-processes to issue local routes
  • the first VIU and the second VIU can issue local routes with the same next hop address.
  • Step 103 the gateway detects that the second VIU uses the local route advertised by the OSPF sub-process, and forms a backhaul route according to the local route; when receiving the backhaul data sent to the second VIU, the The backhaul route forwards the backhaul data to the second VIU.
  • a backhaul route may be formed.
  • the backhaul route corresponding to the first VIU is only the next hop address, and the next hop address of the one backhaul route is the first.
  • the VIU interface address, and the other is the interface address of the second VIU.
  • the gateway when the gateway receives the backhaul data, the local traffic is configured to implement load balancing transmission of the first VIU and the second VIU according to the custom algorithm, and the backhaul traffic needs to rely on the load balancing algorithm of the peer router to implement link balancing.
  • the backhaul algorithm is constrained by the peer device implementation, and may not be guaranteed to be consistent with the rules of the outbound algorithm.
  • the flow sent by the first VIU may return to the second VIU, so it is necessary to extract the 3-tuple or 5-tuple in the backhaul data. , thereby identifying the home device of the backhaul data according to the 3-tuple or 5-tuple, and transmitting to the home device. Specifically, it can be:
  • the post-tuple quintuple in the backhaul data is extracted, and according to the triplet or the quintuple, the backhaul data is determined to be the data sent to the second VIU, and the backhaul data is correspondingly sent to the second VIU.
  • first VIU and the second VIU are OSPF multi-processes on the same network segment, an OSPF neighbor relationship is formed, and a loop is formed, and in order to prevent the loop loop from being generated, the inter-process process can also be blocked in the embodiment of the present invention.
  • the neighbor relationship is established to filter the local loop route.
  • the gateway detects a hello packet sent by any VIU to establish a neighbor relationship
  • the hello packet is a handshake packet that is negotiated to establish a link in the OSPF protocol.
  • A2 The gateway determines whether the any VIU is set on the gateway, and if yes, deletes the hello packet; otherwise, establishes the neighbor relationship of the any VIU according to the hello packet.
  • the gateway device filters the hello packets of the neighbors of the device to prevent neighbors from forming a neighbor.
  • the embodiment of the present invention provides a multi-gateway expansion method.
  • the following embodiment implements a method provided by an embodiment of the present invention based on a virtual interface unit, where the method is applied to a gateway device, where the gateway currently uses the first virtual machine.
  • Performing service processing, enabling the second virtual machine when the amount of traffic to be processed by the gateway increases, the method includes:
  • Step 201 After receiving the control command sent by the gateway, the second virtual interface unit VIU corresponding to the second virtual machine enables the OSPF sub-process; wherein the second VIU is the first VIU corresponding to the first virtual machine.
  • Business address is the same;
  • Step 202 The second VIU uses the OSPF sub-process to advertise a local route, so that the gateway forwards the backhaul data of the second VIU according to the local route; where the next hop address in the local route is The next hop address in the local route advertised by the first VIU is the same.
  • the gateway when the gateway receives the backhaul data, the local traffic is configured to implement the load balancing of the first VIU and the second VIU according to the custom algorithm, and the backhaul traffic needs to rely on the load balancing algorithm of the peer router to implement link balancing.
  • the backhaul algorithm is constrained by the peer device implementation, and may not be guaranteed to be consistent with the rules of the outbound algorithm.
  • the flow sent by the first VIU may return to the second VIU, so the VIU further extracts the backhaul data after receiving the backhaul data.
  • the attribute information indicating the backhaul data belongs to the device, so that the home device of the backhaul data is identified according to the attribute information, and sent to the home device. Specifically, it can be:
  • the attribute information may be a triple or a quintuple of the backhaul data.
  • the quintuple can be srcip, dstip, protocol, sport, dport. Under the premise of the same dstip route, there are multiple egress ports, and an exit can be derived based on the hash hash.
  • the second VIU determines whether it is the destination VIU, and if not, forwards the backhaul data to the destination VIU according to the attribute information.
  • Step 301 the gateway performs initial configuration.
  • the VIU learns the routes advertised by the Router locally:
  • the gateway device enables the new virtual machine:
  • Step 302 the gateway enables the VM of the VIU2;
  • the IP address of the port2 interface corresponding to the VIU2 is 10.1.1.2/24, and the OSPF sub-process is enabled in the port 2; in the case of the local route, the VIU1 and the VIU2 respectively use independent OSPF sub-processes to independently advertise local routes, thus the Router Form two equivalent backhaul routes:
  • VIU2 learns the routes advertised by the Router locally and forms two equal-cost routes:
  • the load sharing algorithm for sending data is determined by the VSU sending flow table to perform policy routing. It can be sent preferentially from the VIU2 exit.
  • the local traffic is transmitted according to the load balancing method of port1 and port2 according to the custom algorithm.
  • the backhaul traffic depends on the load balancing algorithm of the peer router to implement link balancing.
  • the backhaul algorithm is restricted by the implementation of the peer device, and may not be consistent with the rules of the outbound algorithm.
  • the flow sent by viu1 may be returned to viu2.
  • the embodiment further includes:
  • step 303 the 3/5 tuple of the backhaul data is extracted, and the belonging VIU of the backhaul data is identified according to the 3/5 tuple.
  • VIU1 and VIU2 are OSPF multi-processes on the same network segment, an OSPF neighbor relationship is formed, and a loop is formed.
  • the embodiment further includes:
  • Step 304 Block the establishment of a neighbor relationship between processes, thereby filtering the local loop route.
  • VIU1 and VIU2 use a separate OSPF process to advertise local routes, if VIU2 receives the hello message advertised by VIU1, the following routes are formed:
  • the embodiment of the present invention provides a gateway, where the gateway currently uses the first virtual machine to perform service processing, and when the amount of traffic to be processed by the gateway increases, the second virtual machine is enabled, and the gateway includes:
  • the setting module 501 is configured to set a next hop address when the second virtual interface unit VIU corresponding to the second virtual machine sends data as a first address, and the second VIU corresponds to the first virtual machine
  • the service address of the first VIU is the same; the first address is the next hop address of the first VIU corresponding to the first virtual machine when the data is sent;
  • control module 502 configured to control the second VIU to enable an OSPF sub-process, so that the The second VIU uses the OSPF sub-process to issue a local route;
  • the forwarding module 503 is configured to: after detecting that the second VIU uses the local route advertised by the OSPF sub-process, form a backhaul route according to the local route; and when receiving the backhaul data sent to the second VIU, The backhaul route forwards the backhaul data to the second VIU.
  • the gateway also includes:
  • a blocking module configured to detect a hello packet sent by any VIU to establish a neighbor relationship; determine whether the any VIU is set on the gateway, and if yes, delete the hello packet; The hello packet establishes the neighbor relationship of any of the VIUs.
  • the embodiment of the present invention further provides a virtual interface unit, where the virtual interface unit VIU is disposed on a gateway, where the gateway currently uses the first virtual machine for service processing, and when the gateway is to be processed, The second virtual machine is enabled when the amount is increased.
  • the virtual machine port unit is a second virtual interface unit VIU corresponding to the second virtual machine, and specifically includes:
  • the enabling module 601 is configured to: after receiving the control command sent by the gateway, enable the OSPF sub-process;
  • a publishing module 602 configured to use the OSPF sub-process to advertise a local route, so that the gateway forwards the backhaul data of the second VIU according to the local route; where the next hop address in the local route is The next hop address in the local route advertised by the first VIU corresponding to the first virtual machine is the same.
  • the gateway when the gateway receives the backhaul data, the local traffic is configured to implement load sharing of the first VIU and the second VIU according to the custom algorithm, and the backhaul traffic needs to rely on the load sharing algorithm of the peer Router.
  • the backhaul algorithm is constrained by the peer device implementation, and may not be guaranteed to be consistent with the rules of the outbound algorithm.
  • the flow sent by the first VIU may be returned to the second VIU, so the virtual interface unit further includes:
  • a forwarding module configured to receive the backhaul data, and extract attribute information of the backhaul data; wherein the attribute information is used to indicate a destination VIU of the backhaul data, and determine whether the self is the destination VIU, if If not, the backhaul data is forwarded to the destination VIU according to the attribute information.
  • the forwarding module is further configured to extract a triplet or a quintuple of the backhaul data as the attribute information.
  • the method and the device provided by the embodiments of the present invention can implement unlimited elastic expansion and expansion of the local gateway.
  • the present invention provides a gateway including: a router 701, a local area network switch 702, and a plurality of virtual machine hardware implementation modules 703, each virtual machine hardware implementation module including a virtual interface unit (VIU) and A virtual switching unit (VSU), where VSU and VIU represent a single board, VIU is an interface board for data transmission, and VSU is a virtual machine for business processing.
  • VSU virtual interface unit
  • VSU virtual switching unit
  • the gateway currently uses the first virtual machine to perform service processing.
  • the second virtual machine is enabled when the traffic to be processed of the gateway increases, the following functions of the protocol stack set in the router or the local area network switch are:
  • the first address is the next hop of the first VIU when sending data address
  • the OSPF neighbor relationship may be formed in the OSPF multi-process in the same network segment because the first VIU and the second VIU are in the same network segment.
  • the neighbor relationship is established between the interrupted processes to filter the local loop route; therefore, the protocol stack is further used to:
  • the gateway detects a hello packet sent by any VIU to establish a neighbor relationship
  • the gateway determines whether the any VIU is set on the gateway, and if yes, deletes the hello packet; otherwise, the neighbor relationship of the any VIU is established according to the hello packet.
  • the method and the device provided by the embodiment of the present invention use the independent OSPF sub-thread to perform local route advertisement when each VM gateway is enabled. Therefore, only one network segment needs to be planned, one connection is completed, and subsequent multiple VM gateways are self-expanding.
  • the network segment is self-configured through independent OSPF sub-threads, which can achieve the purpose of expanding a large number of ports on one network segment, which greatly reduces the cost of customer operation and maintenance.
  • the solution provided by the present invention also performs the blocking control of multiple ospf processes between the interfaces on the same network segment, and does not learn from each other, thereby avoiding that each VM gateway advertises the routing route of the local route by using an independent OSPF sub-process. road.
  • each VIU uses the load sharing algorithm between multiple ports on the same network segment to perform the output sharing, so that link balancing can be implemented.
  • the present invention is directed to a method, apparatus (system), and computer program according to an embodiment of the present invention.
  • the flow chart and/or block diagram of the product is described. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

L'invention concerne un procédé et un appareil d'expansion à grilles multiples, le procédé étant appliqué à une passerelle. La passerelle utilise actuellement une première machine virtuelle pour effectuer un traitement de service, et une seconde machine virtuelle est démarrée lorsque le nombre de services devant être traités par la passerelle augmente. Le procédé comprend les opérations suivantes : la passerelle définit, en tant que première adresse, une adresse de saut suivant utilisée lorsqu'une seconde unité d'interface virtuelle (VIU) envoie des données, la seconde VIU ayant la même adresse de service qu'une première VIU correspondant à la première machine virtuelle, et la première adresse étant une adresse de saut suivant utilisée lorsque la première VIU envoie des données ; commande la seconde VIU pour lancer un sous-processus OSPF, de telle sorte que la seconde VIU utilise le sous-processus OSPF pour publier une route locale ; et lors de la détection de la route locale publiée par la seconde VIU à l'aide du sous-processus OSPF, former une route de retour selon la route locale. Le procédé et l'appareil de la présente invention résolvent le problème dans l'état de la technique dans lequel une expansion à passerelles multiples consomme une grande quantité de bande passante de port d'un routeur d'opérateur.
PCT/CN2016/084179 2016-05-31 2016-05-31 Procédé et appareil d'expansion à grilles multiples WO2017206076A1 (fr)

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CN111464342A (zh) * 2020-03-19 2020-07-28 烽火通信科技股份有限公司 网络设备管理信息分布式路由汇聚方法及系统
CN111464342B (zh) * 2020-03-19 2023-04-07 烽火通信科技股份有限公司 网络设备管理信息分布式路由汇聚方法及系统

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