WO2014019196A1 - Procédé et dispositif de traitement d'informations de topologie - Google Patents

Procédé et dispositif de traitement d'informations de topologie Download PDF

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Publication number
WO2014019196A1
WO2014019196A1 PCT/CN2012/079588 CN2012079588W WO2014019196A1 WO 2014019196 A1 WO2014019196 A1 WO 2014019196A1 CN 2012079588 W CN2012079588 W CN 2012079588W WO 2014019196 A1 WO2014019196 A1 WO 2014019196A1
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WO
WIPO (PCT)
Prior art keywords
control device
domain
topology information
topology
managed
Prior art date
Application number
PCT/CN2012/079588
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English (en)
Chinese (zh)
Inventor
王军
胡杰晖
吴小前
熊怡
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2012/079588 priority Critical patent/WO2014019196A1/fr
Priority to CN2012800010835A priority patent/CN102907052A/zh
Publication of WO2014019196A1 publication Critical patent/WO2014019196A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/12—Discovery or management of network topologies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H04L45/04—Interdomain routing, e.g. hierarchical routing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks

Definitions

  • TECHNICAL FIELD The present application relates to communication technologies, and in particular, to a topology information processing method and device. Background technique
  • the control device for example, the Master, etc.
  • the network device managed by the control device for example, an AP (Access Point), etc.
  • the control device jointly complete the packet forwarding process that is completely controlled by the switch/router, thereby implementing data forwarding and routing control. Separation.
  • the control device can use a protocol such as an Interior Gateway Protocol (IGP) or a Link Layer Discovery Protocol (LLDP), and the network device managed by the control device Collect topology information for the entire network.
  • IGP Interior Gateway Protocol
  • LLDP Link Layer Discovery Protocol
  • aspects of the present application provide a topology information processing method and apparatus for reducing the processing load of a control device.
  • An aspect of the present application provides a topology information processing method, the method being applied to a centralized system for controlling and forwarding separate, the system comprising a first control device and a second control device, and the first control device
  • the managed network device and the network device managed by the second control device includes:
  • the first control device obtains topology information of the first domain to which the first control device belongs, where the first domain is a domain formed by the first control device and a network device managed by the first control device;
  • the second control device Receiving, by the first control device, the second control device that is sent by the second control device The topology information of the second domain, where the second domain is a domain formed by the second control device and the network device managed by the second control device;
  • the first control device sends topology information including topology information of the first domain to the second control device.
  • topology information of the topology information that includes the first domain is that the first control device uses the first domain
  • topology information of the topology information that includes the first domain is the first domain obtained by the first control device Topological information.
  • the above-mentioned aspect and any possible implementation manner further provide an implementation manner, where the first control device obtains the topology information of the first domain to which the first control device belongs, including:
  • the first control device uses the IGP to obtain topology information of the first domain to which the first control device belongs; or
  • the first control device uses LLDP to obtain topology information of the first domain to which the first control device belongs.
  • a topology information processing method is provided, where the method is applied to a centralized centralized system for controlling and forwarding, and the system includes a first control device, a second control device, and a topology collection device, and The network device managed by the first control device and the network device managed by the second control device, the method includes:
  • the topology collection device sends topology information including topology information of the first domain to the second control device;
  • the topology collection device sends topology information including topology information of the second domain to the first control device.
  • the aspect as described above, and any possible implementation manner, further provide an implementation manner, where the topology information including the topology information of the first domain and the topology information of the topology information including the second domain are further provided
  • the information is the topology information obtained by the topological collection device that summarizes the topology information of the first domain and the topology information of the second domain.
  • topology information of the topology information that is included in the first domain is the first domain obtained by the topology collection device
  • the topology information of the topology information including the second domain is topology information of the second domain obtained by the topology collection device.
  • the above-mentioned aspect and any possible implementation manner further provide an implementation manner, where the first control device obtains the topology information of the first domain to which the first control device belongs, including:
  • the first control device uses the IGP to obtain topology information of the first domain to which the first control device belongs; or
  • the first control device uses LLDP to obtain topology information of the first domain to which the first control device belongs.
  • a control device is provided, the control device being applied to a centralized system for controlling and forwarding separate, the system comprising the control device and a second control device, and a network managed by the control device a device and a network device managed by the second control device, the control device includes:
  • an obtaining unit configured to obtain topology information of the first domain to which the control device belongs, and transmit topology information of the first domain to the sending unit, where the first domain is the control device and the control device The domain formed by the managed network devices;
  • a receiving unit configured to receive topology information of the second domain to which the second control device belongs, sent by the second control device, and transmit topology information of the second domain to the sending unit, where
  • the second domain is a domain formed by the second control device and the network device managed by the second control device;
  • the sending unit is configured to send, by the control device, topology information including topology information of the first domain to the second control device.
  • topology information that is sent by the sending unit and includes the topology information of the first domain is that the sending unit The topology obtained by summarizing the topology information of the first domain and the topology information of the second domain Information.
  • the aspect as described above, and any possible implementation manner, further provide an implementation manner, where the topology information that is sent by the sending unit and includes the topology information of the first domain is received by the sending unit The topology information of the first domain.
  • the LLDP is used to obtain topology information of the first domain to which the control device belongs.
  • a topology collection device is provided, the topology collection device being applied to a centralized system for controlling and forwarding, the system comprising a first control device, a second control device, and the topology a collection device, and a network device managed by the first control device and a network device managed by the second control device, where the topology collection device includes:
  • a receiving unit configured to receive topology information of the first domain to which the first control device belongs, and transmit topology information of the first domain to a sending unit, where the first domain is a domain formed by the first control device and the network device managed by the first control device;
  • the receiving unit is further configured to receive, by the second control device, the second domain to which the second control device belongs The topology information, and transmitting the topology information of the second domain to the sending unit, where the second domain is a domain formed by the second control device and a network device managed by the second control device ;
  • the sending unit is configured to send topology information including topology information of the first domain to the second control device;
  • the sending unit is further configured to send topology information including topology information of the second domain to the first control device.
  • the aspect as described above, and any possible implementation manner, further provide an implementation manner, where the sending unit sends the topology information including the topology information of the first domain and the sending information by the sending unit
  • the topology information including the topology information of the second domain is the topology information obtained by the sending unit combining the topology information of the first domain and the topology information of the second domain.
  • the aspect as described above, and any possible implementation manner, further provide an implementation manner, where the topology information that is sent by the sending unit and includes the topology information of the first domain is received by the sending unit The topology information of the first domain; the extension of the second domain that is sent by the sending unit The topology information of the PC information is topology information of the second domain received by the sending unit.
  • a control device is provided, the control device being applied to a centralized system for controlling and forwarding separate, the system comprising the control device and a second control device, and a network managed by the control device a device and a network device managed by the second control device, the control device includes:
  • a processor configured to obtain topology information of the first domain to which the control device belongs, and transmit topology information of the first domain to a transmitter, where the first domain is the control device and the control device The domain formed by the managed network devices;
  • the second control device And receiving, by the second control device, topology information of the second domain to which the second control device belongs, and transmitting topology information of the second domain to the transmitter, where
  • the second domain is a domain formed by the second control device and the network device managed by the second control device; the transmitter is configured to: the control device includes a topology of topology information of the first domain Information is sent to the second control device.
  • topology information of the topology information that is sent by the sender that includes the first domain is that the sender The topology information obtained by summarizing the topology information of the first domain and the topology information of the second domain.
  • the LLDP is used to obtain topology information of the first domain to which the control device belongs.
  • a topology collection device is provided, the topology collection device being applied to a centralized system for controlling and forwarding, the system comprising a first control device, a second control device, and the topology a collection device, and a network device managed by the first control device and a network device managed by the second control device, where the topology collection device includes:
  • a receiver configured to receive topology information of the first domain to which the first control device belongs, sent by the first control device, and transmit topology information of the first domain to a sender, where the first domain is For The first control device and the domain of the network device managed by the first control device; the receiver is further configured to receive, by the second control device, the second domain to which the second control device belongs The topology information, and the topology information of the second domain is transmitted to the sender, where the second domain is a domain formed by the second control device and a network device managed by the second control device;
  • the transmitter is configured to send topology information including topology information of the first domain to the second control device;
  • the transmitter is further configured to send topology information including topology information of the second domain to the first control device.
  • the aspect as described above, and any possible implementation manner, further provide an implementation manner, where the topology information of the topology information that is sent by the sender and the information sent by the sender is sent by the sender
  • the topology information including the topology information of the second domain is the topology information obtained by the sender summing the topology information of the first domain and the topology information of the second domain.
  • topology information of the topology information that is sent by the sender and the first domain is received by the sender
  • topology information of the first domain is sent by the sender
  • topology information of the topology information that is sent by the sender is the topology information of the second domain that is received by the sender.
  • the first control device obtains topology information of the first domain to which the first control device belongs, where the first domain is the first control device and the first a domain of the network device managed by the control device, and the first control device receives the topology information of the second domain to which the second control device belongs, and the second domain is a domain formed by the second control device and the network device managed by the second control device, so that the first control device can send topology information including topology information of the first domain to the second
  • the control device can avoid the problem of increasing the processing load of the control device caused by the collection of the topology information of the entire network by the network device managed by the control device in the prior art, thereby reducing the processing load of the control device. , is conducive to expanding the scale of the network.
  • the topology of the application receives the topology information of the first domain to which the first control device belongs, and the first domain is the a domain formed by the first control device and the network device managed by the first control device, and the topology collection device receiving the second control device sent by the second control device
  • the topology information of the second domain, the second domain is a domain formed by the second control device and the network device managed by the second control device, so that the topology collection device can include the first
  • the topology information of the topology information of the domain is sent to the second control device, and the topology collection device is configured to send the topology information including the topology information of the second domain to the first control device.
  • FIG. 1 is a schematic flowchart of a topology information processing method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram of a domain division of an entire network in the embodiment corresponding to FIG. 1;
  • FIG. 3 is a schematic diagram of another domain division of the entire network in the embodiment corresponding to FIG. 1;
  • FIG. 4 is a schematic flowchart of a topology information processing method according to another embodiment of the present disclosure
  • FIG. 5 is a schematic structural diagram of a control device according to another embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a topology collection device according to another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a control device according to another embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a topology collection device according to another embodiment of the present application.
  • the technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application.
  • the embodiments are part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present invention.
  • FIG. 1 is a schematic flowchart of a method for processing topology information according to an embodiment of the present disclosure, where the method is applied to a centralized system for controlling and forwarding, the system includes a first control device and a second control device, and the The network device managed by the first control device and the network device managed by the second control device are as shown in FIG. 1 .
  • the first control device obtains topology information of the first domain to which the first control device belongs, where the first domain is formed by the first control device and a network device managed by the first control device. area.
  • the first control device receives the topology information of the second domain to which the second control device belongs, and the second domain is the second control device and the second control The domain formed by the network devices managed by the device.
  • the first control device sends topology information including topology information of the first domain to the second control device.
  • the entire network may be divided into a plurality of first domains and a plurality of second domains.
  • the specific division method may be that the operator manually specifies the domain, or may be automatically designated by a computer.
  • the domain is not limited in this embodiment.
  • the topology information may include, but is not limited to, devices on the corresponding domain, and a connection order relationship of the devices.
  • the topology information of the first domain may include, but is not limited to, devices on the first domain, and a connection order relationship of the devices.
  • the topology information of the second domain may include, but is not limited to, devices on the second domain, and a connection order relationship of the devices.
  • the OpenFlow system may be a control server (Controller); the network device managed by the first control device may be an OpenFlow switch (OpenFlow Switch) under the OpenFlow system; correspondingly, the first corresponding to the first control device
  • the second control device, in the OpenFlow system may also be a control server; the network device managed by the second control device may also be an OpenFlow switch under the OpenFlow system.
  • the topology information that includes the topology information of the first domain may be that the first control device uses the topology information of the first domain and The topology information obtained by summarizing the topology information of the second domain is summarized.
  • the topology information that includes the topology information of the first domain may also be a topology of the first domain obtained by the first control device. information.
  • the first control device may obtain the topology information of the first domain to which the first control device belongs.
  • the first control device and the network device managed by the first control device may obtain, by using an IGP, topology information of the first domain obtained by performing a synchronization operation.
  • the network device managed by the first control device and the first control device only needs to synchronize the topology information of the first domain to which the first control device belongs by using the IGP, and does not need to synchronize the extension of the entire network. The information can effectively reduce the processing load of the network device managed by the first control device and the first control device.
  • the IGP may include an Intermediate System to Intermediate System (ISIS) protocol or an Open Shortest Path First (OSPF) protocol.
  • ISIS Intermediate System to Intermediate System
  • OSPF Open Shortest Path First
  • the first control device may obtain the topology information of the first domain to which the first control device belongs.
  • the first control device establishes a communication connection with the network device managed by the first control device, and performs a Transmission Control Protocol (TCP) connection, where the first The control device may obtain topology information of the network device managed by each of the first control devices by using the established communication connection to form topology information of the first domain.
  • TCP Transmission Control Protocol
  • the first control device only needs to establish a communication connection with a network device managed by the first control device in the same domain as the first control device, to obtain the extension of the first domain.
  • the information is not required to establish a communication connection between the network device managed by the control device in the entire network (ie, the network device managed by the first control device and the network device managed by the second control device) to obtain the extension of the entire network.
  • the simple information can effectively reduce the processing load of the first control device.
  • the first control device is a topology collection device, and may be any one of the control devices.
  • the multiple control devices in the system may specifically determine a control device as the first control device according to a preset selection policy.
  • the other control device can be the second control device.
  • the selection policy may be that, according to the management identifier information, a control device that has the largest or smallest value, such as an IP address, is selected as the first control device; for example, the selection policy may also be based on the device identifier.
  • ESN Electronic Serial Numbers
  • MAC Media Access Control
  • the network topology shown in FIG. 3 will be taken as an example.
  • the entire network is divided into four domains, namely domain 1, domain 2, domain 3, and domain 4.
  • Master 1, and AP 1, AP 2 and AP 3 managed by Master 1 form domain 1
  • Master 2, and AP 4 and AP 5 managed by Master 2 form domain 2
  • AP 7 constitutes domain 3
  • Master 4, and AP 8 and AP 9 managed by Master 4 constitute domain 4.
  • Master 1, Master 2, Master 3, and Master 4 may specifically determine that Master 1 is the first control device according to a preset selection policy. First, Master 1, Master 2, Master 3, and Master 4 can obtain the topology information of the domain to which they belong, that is, Master 1 obtains the topology information of domain 1 and Master 2 obtains the topology information of domain 2. Master 3 obtains the topology information of domain 3, and Master 4 obtains the topology information of domain 4. Then, Master 2, Master 3, and Master 4 send the topology information of each of the respective domains to which Master 1 obtains, so that Master 1 obtains the topology information of the entire network.
  • the master 1 summarizes the topology information of the domain 2 to which the master 2 belongs, the topology information of the domain 3 to which the master 3 belongs, and the topology information of the domain 4 to which the master 4 belongs, and the topology information of the domain 1 to which the master belongs.
  • the obtained topology information is sent to Master 2, Master 3 and Master 4 so that Master 2, Master 3 and Master 4 obtain the topology information of the entire network.
  • the topology information of the first domain to which the first control device belongs is obtained by the first control device, where the first domain is the first control device and the network device managed by the first control device And the first control device receives the topology information of the second domain to which the second control device belongs, and the second domain is the second control device and the a domain formed by the network device managed by the second control device, so that the first control device can send the topology information including the topology information of the first domain to the second control device, which can avoid the prior art. Because the control device needs to collect the entire network device managed by the control device The problem of an increase in the processing load of the control device caused by the topology information of the network, thereby reducing the processing load of the control device and facilitating the expansion of the network scale.
  • FIG. 4 is a schematic flowchart of a topology information processing method according to another embodiment of the present disclosure, where the method is applied to a centralized centralized system for controlling and forwarding, and the system includes a first control device, a second control device, and a topology.
  • the collection device, and the network device managed by the first control device and the network device managed by the second control device are as shown in FIG. 4 .
  • the topology collection device receives the topology information of the first domain to which the first control device belongs, and the first domain is the first control device and the first control The domain formed by the network devices managed by the device.
  • the topological collection device receives the topology information of the second domain to which the second control device belongs, and the second domain is the second control device and the second control The domain formed by the network devices managed by the device.
  • the topology collection device sends information about the extension information of the first domain to the second control device.
  • the topology collection device sends information about the topology information of the second domain to the first control device.
  • the topology collection device is a separately set server, for example, a control server, and the server may be associated with each control device (ie, the first control device and the second The control device) communicates.
  • the entire network may be divided into a plurality of first domains and a plurality of second domains, as shown in the figure.
  • the specific division method may be that the sub-domain is manually designated by the operator, or may be automatically designated by the computer, which is not limited in this embodiment.
  • the topology information may include, but is not limited to, devices on the corresponding domain, and a connection order relationship of the devices.
  • the topology information of the first domain may include, but is not limited to, devices on the first domain, and a connection order relationship of the devices.
  • the topology information of the second domain may include, but is not limited to, devices on the second domain, and a connection order relationship of the devices.
  • the first control device may be a control server (Controller); the network device managed by the first control device may be an OpenFlow switch (OpenFlow Switch) under the OpenFlow system;
  • the second control device corresponding to the first control device may also be a control server under the OpenFlow system;
  • the network device managed by the second control device may also be an OpenFlow switch under the OpenFlow system.
  • the topology information that includes the topology information of the first domain and the topology information that includes the topology information of the second domain may be
  • the topology information obtained by the topology collection device is obtained by summarizing the topology information of the first domain and the topology information of the second domain.
  • the topology information that includes the topology information of the first domain may also be a topology of the first domain obtained by the topology collection device. information.
  • the topology information that includes the topology information of the second domain may also be a topology of the second domain obtained by the topology collection device. information.
  • the first control device may use the IGP to obtain topology information of the first domain to which the first control device belongs.
  • the first control device and the network device managed by the first control device may obtain, by using an IGP, topology information of the first domain obtained by performing a synchronization operation.
  • the network device managed by the first control device and the first control device only needs to synchronize the topology information of the first domain to which the first control device belongs by using the IGP, and does not need to synchronize the extension of the entire network. The information can effectively reduce the processing load of the network device managed by the first control device and the first control device.
  • the IGP may include an Intermediate System to Intermediate System (ISIS) protocol or an Open Shortest Path First (OSPF) protocol.
  • ISIS Intermediate System to Intermediate System
  • OSPF Open Shortest Path First
  • the first control device may use LLDP to obtain topology information of the first domain to which the first control device belongs.
  • the first control device establishes a communication connection with a network device managed by the first control device, for example, a Transmission Control Protocol (TCP) connection, and the first control device can pass The established communication connection obtains topology information of the network device managed by each of the first control devices to form topology information of the first domain.
  • TCP Transmission Control Protocol
  • the first control device only needs to establish a communication connection with a network device managed by the first control device in the same domain as the first control device, to obtain the extension of the first domain.
  • Park information there is no need to establish a network device managed by the control device in the entire network (ie, the network device managed by the first control device)
  • the communication connection between the network device and the network device managed by the second control device to obtain the topology information of the entire network can effectively reduce the processing load of the first control device.
  • the second control device can obtain the topology information of the second domain to which the second control device belongs by using a similar method, and details are not described herein again.
  • the network topology shown in FIG. 3 will be taken as an example.
  • the entire network is divided into four domains, namely domain 1, domain 2, domain 3, and domain 4.
  • Master 1, and AP 1, AP 2 and AP 3 managed by Master 1 form domain 1
  • Master 2, and AP 4 and AP 5 managed by Master 2 form domain 2
  • AP 7 constitutes domain 3
  • Master 4, and AP 8 and AP 9 managed by Master 4 constitute domain 4.
  • a server may be independently set as a topology collection device.
  • Master 1, Master 2, Master 3, and Master 4 can obtain the topology information of the domain to which they belong, that is, Master 1 obtains the topology information of domain 1 and Master 2 obtains the topology information of domain 2.
  • Master 3 obtains the topology information of domain 3, and Master 4 obtains the topology information of domain 4.
  • Master 1, Master 2, Master 3, and Master 4 send the topology information of each respective domain to the server, so that the server obtains the topology information of the entire network.
  • the server obtains the topology information of the domain 1 to which the master 1 belongs, the topology information of the domain 2 to which the master 2 belongs, the topology information of the domain 3 to which the master 3 belongs, and the topology information of the domain 4 to which the master 4 belongs.
  • the topology information is sent to Master 1, Master 2, Master 3 and Master 4 so that Master 1, Master 2, Master 3 and Master 4 obtain the topology information of the entire network.
  • the topology information of the first domain to which the first control device belongs is sent by the first control device, where the first domain is the first control device and the first a domain of the network device managed by the control device, and the topology collection device receives the topology information of the second domain to which the second control device belongs, and the second domain is a domain formed by the second control device and the network device managed by the second control device, so that the topology collection device can send topology information including topology information of the first domain to the second
  • the control device, and the topology collection device can send the topology information including the topology information of the second domain to the first control device, which can avoid the need for the control device to pass through the control device in the prior art.
  • Control caused by managed network devices collecting topology information of the entire network The problem of an increase in the processing load of the device reduces the processing load of the control device and facilitates the expansion of the network scale.
  • FIG. 5 is a schematic structural diagram of a control device according to another embodiment of the present application, where the control device is applied to a centralized system for controlling and forwarding, the system includes the control device and a second control device, and the control a network device managed by the device and a network device managed by the second control device.
  • the control device of this embodiment may include an obtaining unit 51, a receiving unit 52, and a transmitting unit 53.
  • the obtaining unit 51 is configured to obtain topology information of the first domain to which the control device belongs, and transmit topology information of the first domain to the sending unit 53, where the first domain is the control device and a receiving device 52, configured to receive topology information of the second domain to which the second control device belongs, and send the second domain
  • the topology information is transmitted to the sending unit 53, the second domain is a domain formed by the second control device and a network device managed by the second control device, and the sending unit 53 is configured to The control device sends topology information including the topology information of the first domain to the second control device.
  • the entire network may be divided into a plurality of first domains and a plurality of second domains.
  • the specific division method may be that the operator manually specifies the domain, or may be automatically designated by a computer.
  • the domain is not limited in this embodiment.
  • the topology information may include, but is not limited to, devices on the corresponding domain, and a connection order relationship of the devices.
  • the topology information of the first domain may include, but is not limited to, devices on the first domain, and a connection order relationship of the devices.
  • the topology information of the second domain may include, but is not limited to, devices on the second domain, and a connection order relationship of the devices.
  • control device may be a control server under the OpenFlow system; the network device managed by the control device may be under the OpenFlow system.
  • the OpenFlow Switch OpenFlow Switch
  • the second control device corresponding to the control device may be a control server under the OpenFlow system; and the network device managed by the second control device is under the OpenFlow system. It can also be an OpenFlow switch.
  • the topology information that is sent by the sending unit 53 and includes the topology information of the first domain may be that the sending unit 53 The topology information obtained by summarizing the topology information of the domain and the topology information of the second domain.
  • the topology information that is sent by the sending unit 53 and includes the topology information of the first domain may also be the Topological information of the first domain.
  • the obtaining unit 51 may specifically obtain the topology information of the first domain to which the control device belongs by using the IGP.
  • the obtaining unit 51 may specifically obtain the topology information of the first domain to which the control device belongs by using LLDP.
  • control device provided in this embodiment is used to perform the method in the embodiment shown in FIG. 1.
  • the details already described in the embodiment shown in FIG. 1 are not described herein again.
  • the control device obtains the topology information of the first domain to which the control device belongs by using the obtaining unit, where the first domain is a domain formed by the control device and the network device managed by the control device, and receiving Receiving, by the second control device, topology information of the second domain to which the second control device belongs, where the second domain is formed by the second control device and the network device managed by the second control device
  • the domain is configured to enable the sending unit to send the topology information including the topology information of the first domain to the second control device, which can avoid the network device that needs to be managed by the control device in the prior art.
  • FIG. 6 is a schematic structural diagram of a topology collection device according to another embodiment of the present disclosure.
  • the topology collection device is applied to a centralized system for controlling and forwarding, and the system includes a first control device, a second control device, and The topology collection device, and the network device managed by the first control device and the network device managed by the second control device.
  • the topology collection device of this embodiment may include a receiving unit 61 and a sending unit 62.
  • the receiving unit 61 is configured to receive topology information of the first domain to which the first control device belongs, sent by the first control device, and The topology information of the first domain is transmitted to the sending unit 62, where the first domain is a domain formed by the first control device and the network device managed by the first control device; the receiving unit 61 is further used for Receiving, by the second control device, the topology information of the second domain to which the second control device belongs, and transmitting the topology information of the second domain to the sending unit 62, where the second domain is a second control device and a domain formed by the network device managed by the second control device; the sending unit 62, configured to send topology information including topology information of the first domain to the second The sending unit 62 is further configured to send topology information including topology information of the second domain to the first control device.
  • the topology collection device is a separately set server, for example, a control server, and the server may be associated with each control device (ie, the first control device and the second The control device) communicates.
  • the entire network may be divided into a plurality of first domains and a plurality of second domains.
  • the specific division method may be that the operator manually specifies the domain, or may be automatically designated by a computer.
  • the domain is not limited in this embodiment.
  • the topology information may include, but is not limited to, devices on the corresponding domain, and a connection order relationship of the devices.
  • the topology information of the first domain may include, but is not limited to, devices on the first domain, and a connection order relationship of the devices.
  • the topology information of the second domain may include, but is not limited to, devices on the second domain, and a connection order relationship of the devices.
  • the first control device may be a control server (Controller); the network device managed by the first control device may be an OpenFlow switch (OpenFlow Switch) under the OpenFlow system;
  • the second control device corresponding to the first control device may also be a control server under the OpenFlow system; and the network device managed by the second control device may also be an OpenFlow switch under the OpenFlow system.
  • the topology information of the topology information of the two domains may be the topology information obtained by the sending unit 62 by summarizing the topology information of the first domain and the topology information of the second domain.
  • the topology information that is sent by the sending unit 62 and includes the topology information of the first domain may also be received by the sending unit 62.
  • the topology information of the first domain may also be received by the sending unit 62.
  • the topology information that is sent by the sending unit 62 and includes the topology information of the second domain may also be the second received by the sending unit 62. Topological information of the domain.
  • the topology collecting device receives the topology information of the first domain to which the first control device belongs, and the first domain is the first control device and the a domain formed by the network device managed by the first control device, and the receiving unit receives topology information of the second domain to which the second control device belongs, which is sent by the second control device, where the second domain is a domain formed by the second control device and the network device managed by the second control device, so that the sending unit can send the topology information including the topology information of the first domain to the second control device, and The sending unit can send the topology information including the topology information of the second domain to the first control device, which can avoid collecting the entire network device that is controlled by the control device in the prior art.
  • the problem of increasing the processing load of the control device caused by the topology information of the network thereby reducing the processing load of the control device and facilitating the expansion of the network scale.
  • FIG. 7 is a schematic structural diagram of a control device according to another embodiment of the present application, where the control device is applied to a centralized system for controlling and forwarding, the system includes the control device and a second control device, and the control a network device managed by the device and a network device managed by the second control device.
  • the control device of this embodiment may include a processor 71, a receiver 72, and a transmitter 73.
  • the processor 71 is configured to obtain topology information of the first domain to which the control device belongs, and transmit topology information of the first domain to the transmitter 73, where the first domain is the control device and a domain formed by the network device managed by the control device; a receiver 72, configured to receive topology information of the second domain to which the second control device belongs, sent by the second control device, and to use the second domain
  • the topology information is transmitted to the transmitter 73, the second domain is a domain formed by the second control device and a network device managed by the second control device, and the transmitter 73 is configured to The control device sends topology information including the topology information of the first domain to the second control device.
  • the entire network may be divided into a plurality of first domains and a plurality of second domains.
  • the specific division method may be that the operator manually specifies the domain, or may be automatically designated by a computer.
  • the domain is not limited in this embodiment.
  • the topology information may include, but is not limited to, devices on the corresponding domain, and a connection order relationship of the devices.
  • the topology information of the first domain may include, but is not limited to, devices on the first domain, and a connection order relationship of the devices.
  • the topology information of the second domain may include, but is not limited to, devices on the second domain, and a connection order relationship of the devices.
  • control device under the OpenFlow system, can be the control server.
  • Controller the network device managed by the control device may be an OpenFlow switch (OpenFlow Switch) under the OpenFlow system; correspondingly, the second control device corresponding to the control device may be The network device managed by the second control device may be an OpenFlow switch under the OpenFlow system.
  • OpenFlow Switch OpenFlow Switch
  • the topology information that is sent by the sender 73 and includes topology information of the first domain may be that the transmitter 73
  • the topology information that is sent by the sender 73 and includes the topology information of the first domain may also be the Topological information of the first domain.
  • the processor 71 may use the IGP to obtain topology information of the first domain to which the control device belongs.
  • the processor 71 may use LLDP to obtain topology information of the first domain to which the control device belongs.
  • control device provided in this embodiment is used to perform the method in the embodiment shown in FIG. 1.
  • the details already described in the embodiment shown in FIG. 1 are not described herein again.
  • the control device obtains the topology information of the first domain to which the control device belongs by using the obtaining unit, where the first domain is a domain formed by the control device and the network device managed by the control device, and receiving Receiving, by the second control device, topology information of the second domain to which the second control device belongs, where the second domain is formed by the second control device and the network device managed by the second control device
  • the domain is configured to enable the sending unit to send the topology information including the topology information of the first domain to the second control device, which can avoid the network device that needs to be managed by the control device in the prior art.
  • FIG. 8 is a schematic structural diagram of a topology collection device according to another embodiment of the present disclosure.
  • the topology collection device is applied to a centralized system for controlling and forwarding, and the system includes a first control device, a second control device, and The topology collection device, and the network device managed by the first control device and the network device managed by the second control device.
  • the topology collection device of this embodiment may include a receiver 81 and a transmitter 82.
  • the receiver 81 is configured to receive topology information of the first domain to which the first control device belongs, and transmit topology information of the first domain to the transmitter 82.
  • the first domain is a domain formed by the first control device and the network device managed by the first control device; the receiver 81 is further configured to receive the second control sent by the second control device The topology information of the second domain to which the device belongs, and the topology information of the second domain is transmitted to the transmitter 82, where the second domain is managed by the second control device and the second control device a domain formed by the network device, the transmitter 82, configured to send topology information including topology information of the first domain to the second control device, where the transmitter 82 is further configured to include The topology information of the topology information of the second domain is sent to the first control device.
  • the topology collection device is a separately set server, for example, a control server, and the server may be associated with each control device (ie, the first control device and the second The control device) communicates.
  • the entire network may be divided into a plurality of first domains and a plurality of second domains.
  • the specific division method may be that the operator manually specifies the domain, or may be automatically designated by a computer.
  • the domain is not limited in this embodiment.
  • the topology information may include, but is not limited to, devices on the corresponding domain, and a connection order relationship of the devices.
  • the topology information of the first domain may include, but is not limited to, devices on the first domain, and a connection order relationship of the devices.
  • the topology information of the second domain may include, but is not limited to, devices on the second domain, and a connection order relationship of the devices.
  • the first control device may be a control server (Controller); the network device managed by the first control device may be an OpenFlow switch (OpenFlow Switch) under the OpenFlow system;
  • the second control device corresponding to the first control device may also be a control server under the OpenFlow system; and the network device managed by the second control device may also be an OpenFlow switch under the OpenFlow system.
  • the packet sent by the sender 82 is The topology information including the topology information of the first domain and the topology information of the topology information including the second domain sent by the sender 82 may be the transmitter 82 to use the first domain.
  • the topology information obtained by summarizing the topology information and the topology information of the second domain.
  • the topology information that is sent by the sender 82 and includes the topology information of the first domain may also be that the transmitter 82 receives the Topological information of the first domain.
  • the topology information of the topology information that is sent by the transmitter 82 and includes the second domain may also be the second information received by the transmitter 82. Topological information of the domain.
  • the topology collecting device receives the topology information of the first domain to which the first control device belongs, and the first domain is the first control device and the a domain formed by the network device managed by the first control device, and the receiving unit receives topology information of the second domain to which the second control device belongs, which is sent by the second control device, where the second domain is a domain formed by the second control device and the network device managed by the second control device, so that the sending unit can send the topology information including the topology information of the first domain to the second control device, and The sending unit can send the topology information including the topology information of the second domain to the first control device, which can avoid collecting the entire network device that is controlled by the control device in the prior art.
  • the problem of increasing the processing load of the control device caused by the topology information of the network thereby reducing the processing load of the control device and facilitating the expansion of the network scale.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute the method of the various embodiments of the present application. Part of the steps.
  • the foregoing storage medium includes: a USB flash drive, a removable hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. Medium.

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Abstract

Selon des modes de réalisation, la présente invention fournit un procédé et un dispositif de traitement d'informations de topologie. Dans un aspect des modes de réalisation de la présente invention, un premier dispositif de commande obtient des informations de topologie d'un premier domaine auquel le premier dispositif de commande appartient, le premier domaine étant un domaine formé par le premier dispositif de commande et un dispositif réseau géré par le premier dispositif de commande; lequel premier dispositif de commande reçoit des informations de topologie d'un second domaine auquel un second dispositif de commande appartient, les informations de topologie étant envoyées par le second dispositif de commande, et le second domaine étant un domaine formé par le second dispositif de commande et un dispositif réseau géré par le second dispositif de commande, de sorte que le premier dispositif de commande peut envoyer des informations de topologie comprenant les informations de topologie du premier domaine au second dispositif de commande, ce qui peut éviter le problème existant dans l'état de la technique selon lequel la charge de traitement d'un dispositif de commande augmente en raison du fait que le dispositif de commande a besoin de collecter des informations de topologie du réseau tout entier par l'intermédiaire d'un dispositif réseau géré par le dispositif de commande, ce qui permet de réduire la charge de traitement du dispositif de commande, et est propice à l'expansion de l'échelle de réseau.
PCT/CN2012/079588 2012-08-02 2012-08-02 Procédé et dispositif de traitement d'informations de topologie WO2014019196A1 (fr)

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