WO2018059503A1 - Procédé de commande de transfert de trafic, appareil, contrôleur de réseautage défini par logiciel et support de stockage informatique - Google Patents

Procédé de commande de transfert de trafic, appareil, contrôleur de réseautage défini par logiciel et support de stockage informatique Download PDF

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Publication number
WO2018059503A1
WO2018059503A1 PCT/CN2017/104046 CN2017104046W WO2018059503A1 WO 2018059503 A1 WO2018059503 A1 WO 2018059503A1 CN 2017104046 W CN2017104046 W CN 2017104046W WO 2018059503 A1 WO2018059503 A1 WO 2018059503A1
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local area
area network
virtual local
group table
mode
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PCT/CN2017/104046
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English (en)
Chinese (zh)
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张海艳
毕以峰
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/70—Admission control; Resource allocation
    • 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
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control

Definitions

  • the present disclosure relates to the field of communications, and in particular, to a traffic forwarding control method and apparatus, and a software defined network controller and a computer storage medium.
  • the SDN controller Based on the OpenFlow-based SDN (Software Defined Networking) technology, the SDN controller performs operations such as writing an OpenFlow flow table (OpenFlow flow table) and a group table (Group table) to the OpenFlow forwarding device.
  • the OpenFlow forwarding device performs traffic forwarding. 1 is illustrated by a first OpenFlow forwarding device (OpenFlow forwarding device) and a second OpenFlow forwarding device (OpenFlow forwarding device, including but not limited to an OF-DPA forwarding device), and an SDN controller and a first host and A networking diagram of two hosts.
  • the output communication port can be directly written into the action of the flow table, as shown in Table 1 below.
  • the second mode belongs to the indirect forwarding mode. After the traffic is matched with the OpenFlow flow table set by the OpenFlow forwarding device, the group table identifier (GroupId) in the flow table action is found first, and then the corresponding group table is found according to the GroupId, and the group table is executed. Action and output traffic from the specified communication port in the Group. If the OpenFlow flow table does not match the corresponding OpenFlow flow table, the SDN controller is forwarded to generate an OpenFlow flow table.
  • GroupId group table identifier
  • the OpenFlow forwarding device adopts the above-mentioned second indirect forwarding mode.
  • the content of the Group table is based on the VLAN (Virtual Local Area Network) attribute of the outbound communication port, and the VLAN tag carried by the packet is processed and then the outgoing communication is performed. Port output.
  • the VLAN attribute of the communication port and the corresponding Group table are as follows: 1 The communication port is added to the VLAN in untagged mode. The corresponding group table content is stripped of the VLAN tag in the packet, and then The communication port is output; 2 the communication port is added to the VLAN in a tagged manner, and the content of the corresponding Group table is, and the message is output from the outbound communication port as it is.
  • the GroupId of the Group table containing the communication port information is encoded in a specific manner by the following three parts of information: GroupType, VLANId, and PortId.
  • the same communication port on the OpenFlow forwarding device can join multiple VLANs in untagged mode. You can also add multiple VLANs in tagged mode. The VLANs added in the two modes do not overlap. The value of the VLAN is [1, 4094] (1 ⁇ VLAN ⁇ 4094). Therefore, when there are many VLANs added to each communication port on the OpenFlow forwarding device, the SDN controller needs to use a large number of OpenFlow messages to group the entries. It is delivered to the OpenFlow forwarding device, and the OpenFlow forwarding device also consumes a large number of Group entry resources.
  • the method and device for controlling traffic forwarding and the software-defined network controller provided by the embodiments of the present invention mainly solve the technical problem that the existing software-defined network controller needs to deliver a large number of group tables to the open stream forwarding device and open circulation.
  • the embodiment of the invention provides a method for controlling traffic forwarding, including:
  • Obtaining virtual local area network configuration information of each communication port of the open flow forwarding device where the virtual local area network configuration information includes: virtual local area network information added by the communication port and joining mode of joining each virtual local area network;
  • an embodiment of the present invention provides a traffic forwarding control apparatus, including:
  • the information obtaining module is configured to obtain virtual local area network configuration information of each communication port of the open flow forwarding device, where the virtual local area network configuration information includes: virtual local area network information added by the communication port and joining mode of joining the virtual local area network;
  • the group table configuration module is configured to convert all the virtual local area network information in the same manner as the shared virtual local area network information on the communication ports, and generate the obtained shared virtual local area network information in a type corresponding to the joining mode.
  • the group table is configured to convert all the virtual local area network information in the same manner as the shared virtual local area network information on the communication ports, and generate the obtained shared virtual local area network information in a type corresponding to the joining mode.
  • the sending module is configured to send the group table to the open stream forwarding device, so that the open stream forwarding device forwards the traffic.
  • an embodiment of the present invention provides a software defined network controller, including the traffic forwarding control device as described above.
  • the embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores a computer Executable instructions for performing the aforementioned traffic forwarding control method.
  • the traffic forwarding control method and device, the software-defined network controller, and the computer storage medium provided by the embodiment of the present invention acquire the virtual local area network configuration information of each communication port of the OpenFlow forwarding device (OpenFlow forwarding device), and the virtual local area network configuration information includes: The virtual local area network information added by the port and the joining mode of joining the virtual local area network; then converting all the virtual local area network information of the same manner on each communication port into a corresponding shared virtual local area network information is generated in a group table; that is, the implementation of the present invention
  • a group table in the example corresponds to all the virtual local area networks corresponding to the same joining mode on the communication port, and not one group table corresponds to one virtual local area network; then the group table is sent to the open stream forwarding device for the open stream forwarding device to forward the traffic.
  • a group table in the present invention corresponds to all virtual local area networks corresponding to the same joining mode on the communication port, so the number of group tables required for one communication port is equal to the number of joining modes of joining the virtual local area network, which can greatly reduce the software definition.
  • the network controller needs to generate and deliver the group table quantity, and can also reduce the group table resources consumed by the open stream forwarding device, thereby improving resource satisfaction.
  • FIG. 1 is a schematic diagram of a networking structure
  • FIG. 2 is a schematic flowchart of a flow forwarding control method according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic diagram of a flow table generation process in Embodiment 1 of the present invention.
  • FIG. 4 is a schematic structural diagram of a software-defined network controller in Embodiment 2 of the present invention.
  • FIG. 5 is a schematic structural diagram of a traffic forwarding control apparatus according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic structural diagram of another traffic forwarding control apparatus according to Embodiment 2 of the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • FIG. 2 A method for controlling traffic forwarding according to an embodiment of the present invention is shown in FIG. 2, and includes:
  • S201 Acquire virtual local area network configuration information of each communication port of the OpenFlow forwarding device (OpenFlow forwarding device).
  • the virtual local area network configuration information of the communication port in this embodiment includes: the virtual local area network information that the communication port joins, the joining mode of joining the virtual local area network, and of course, the port identifier of the communication port.
  • the OpenFlow forwarding device may be configured by the configuration administrator to perform virtual local area network configuration on the communication port of the OpenFlow forwarding device according to service deployment on the network.
  • the virtual local area network configuration information of the communication port can be obtained by any other means.
  • S202 For each communication port of the OpenFlow forwarding device, convert all the virtual local area network information of the same manner to the corresponding one of the shared virtual local area network information, and generate the shared virtual local area network information into a type and the joining mode. Corresponding to the group table.
  • the corresponding shared virtual local area network information is selected according to the joining mode of joining the virtual local area networks, and the selected shared virtual local area network information and the port identifier and the group table type are encoded to generate a group table identifier.
  • S203 The obtained group table is sent to the OpenFlow forwarding device for use by the OpenFlow forwarding device for subsequent traffic forwarding.
  • the virtual local area network information is a virtual local area network identifier (VLAN ID), and the join mode is a tagged mode or an untagged mode.
  • the shared virtual local area network information in this embodiment includes a default tagged virtual network. LAN value (DefaultTagVLAN) and default unlabeled virtual LAN value (DefaultUntagVLAN).
  • Selecting the corresponding shared virtual local area network information according to the joining mode of joining each virtual local area network includes:
  • DefaultTagVLAN For the tagged mode, select the default tagged virtual LAN value (DefaultTagVLAN).
  • the default unlabeled virtual LAN value (DefaultUntagVLAN) is selected.
  • the corresponding shared virtual local area network information is selected according to the joining mode of joining the virtual local area networks, and the selected shared virtual local area network information (DefaultTagVLAN or DefaultUntagVLAN), port identifier (Port ID), and group table type (Group Type) are encoded and generated.
  • the group table identifies the Group ID.
  • the untagged mode is generated for the joining mode.
  • the group table content includes stripping the virtual local area network label in the message and then outputting from the designated communication port;
  • the generated group table content includes outputting the message from the designated communication port as it is.
  • the embodiment for each communication port of the OpenFlow forwarding device, only one group table is generated corresponding to the tagged mode and the untagged mode respectively, that is, for each communication port of the OpenFlow forwarding device, only two communication ports need to be generated.
  • a group table can be used, and each group ID added to the communication port needs to generate a group table.
  • the group table in this embodiment can be generated by the SDN controller. Therefore, the embodiment can greatly reduce the number of group tables that the SDN controller needs to generate, and greatly reduce the occupation of the group table resources of the OpenFlow forwarding device, and reduce the interaction of the number of group tables between the SDN controller and the OpenFlow forwarding device. Improve resource utilization.
  • the OpenFlow forwarding device can forward the traffic based on the group table after receiving the traffic.
  • the matching field in the traffic packet matches the matching field in the local flow table.
  • the group table identifier in the flow table is extracted. (Group ID), then go to the corresponding group table and execute the matched group table. If the flow table is not matched, the traffic is forwarded to the SDN controller, and the SDN controller generates a flow table for the traffic.
  • the process of generating a flow table is shown in Figure 3, including:
  • S301 a port identifier port ID of the output port that obtains the traffic, and a VLAN ID of the virtual local area network identifier;
  • S302 Determine, according to the VLAN ID of the virtual local area network, the joining manner of the virtual local area network in which the output port is added to the traffic, and then extract the corresponding shared virtual local area network information DefaultTagVLAN or DefaultUntagVLAN.
  • S303 According to the port ID of the output port, the shared virtual local area network information (DefaultTagVLAN or DefaultUntagVLAN), and the corresponding group table type (Group Type), the group name is added to the flow table and sent to the output port. Open stream forwarding device. In this way, the forwarding device can match the corresponding flow table after receiving the traffic packet, and then obtain the corresponding group ID, and match the corresponding group table to forward the traffic.
  • DefaultTagVLAN or DefaultUntagVLAN the shared virtual local area network information
  • Group Type group table type
  • the following describes an OpenFlow forwarding device as an OF-DPA forwarding device as an example.
  • the VLAN that is added in the untagged mode on the communication port does not use the VLAN ID actually added.
  • the system defaults DefaultUntagVLAN is used.
  • the actual added VLANId is not used as part of the GroupId encoding. Instead, the system default value DefaultTagVLAN is used.
  • the GroupId is encoded in the following three parts: GroupType, DefaultUntagVLAN, PortId, and the content of the Group is in the stripped packet.
  • the VLAN tag is used to specify the communication port output from the portId.
  • the same communication port shares a group for all the VLANs added in the tagged mode.
  • the GroupId is encoded in the following three parts: GroupType, DefaultTagVLAN, PortId, The content of the Group is to output the message from the PortId designated communication port intact.
  • the SDN controller generates a flow table for the traffic, and obtains the outbound communication port PortId of the traffic according to the topology information (TOPO information) of the network, and obtains the VLAN tag in the traffic as the VLANId. Based on the configuration of the port, the VLAN ID, and the configuration of the previously configured communication port, you can know whether the communication port is added to the VLAN in untagged or tagged mode. In this case, you can use the DefaultUntagVLAN or the DefaultTagVLAN as the VLAN part of the GroupId.
  • the SDN controller writes the generated GroupId into the action of the flow table (that is, the traffic forwarding table), and sends the flow table to the OF-DPA forwarding device.
  • the controller needs to send 4094 Group tables to the OF-DPA device, and the embodiment of the present invention is used. In the Group processing method, only at most 2 Group tables are needed.
  • the embodiment of the present invention improves the processing method of the group on the original OF-DPA forwarding device, saves the Group resource on the forwarding device, and reduces the message interaction between the controller and the forwarding device about the Group table.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • This embodiment provides a software-defined network controller, as shown in FIG. 4, including, for example, the traffic forwarding control device 1.
  • the traffic forwarding control device 1 is shown in FIG. 5 and includes:
  • the information obtaining module 11 is configured to acquire virtual local area network configuration information of each communication port of the open flow forwarding device.
  • the virtual local area network configuration information of the communication port in this embodiment includes: the virtual local area network information that the communication port joins, the joining mode of joining the virtual local area network, and of course, the port identifier of the communication port.
  • the OpenFlow forwarding device may be configured by the configuration administrator to perform virtual local area network configuration on the communication port of the OpenFlow forwarding device according to service deployment on the network.
  • the virtual local area network configuration information of the communication port can be obtained by any other means.
  • the group table configuration module 12 is configured to convert all the virtual local area network information with the same join mode on each communication port into a corresponding shared virtual local area network information, and generate the shared virtual local area network information in a group table corresponding to the join mode. in.
  • the method is specifically configured to select the corresponding shared virtual local area network information according to the joining mode of joining the virtual local area networks, and encode the selected shared virtual local area network information, the port identifier, and the group table type to generate a group table identifier.
  • the sending module 13 is configured to send the obtained group table of each communication port to the OpenFlow forwarding device, so that the OpenFlow forwarding device forwards the traffic.
  • the virtual local area network information is a virtual local area network identifier (VLAN ID), and the join mode is a tagged mode or an untagged mode.
  • the shared virtual local area network information in this embodiment includes a default tagged virtual network. LAN value (DefaultTagVLAN) and default unlabeled virtual LAN value (DefaultUntagVLAN).
  • the group table configuration module 12 in this embodiment selects the corresponding shared virtual local area network information according to the joining mode of joining the virtual local area networks, including:
  • DefaultTagVLAN For the tagged mode, select the default tagged virtual LAN value (DefaultTagVLAN).
  • the default unlabeled virtual LAN value (DefaultUntagVLAN) is selected.
  • the corresponding shared virtual local area network information is selected according to the joining mode of joining the virtual local area networks, and the selected shared virtual local area network information (DefaultTagVLAN or DefaultUntagVLAN), port identifier (Port ID), and group table type (Group Type) are encoded and generated.
  • the group table identifies the Group ID.
  • the generated group table content includes stripping the virtual local area network label in the packet, and then outputting from the designated communication port;
  • the generated group table content includes outputting the message from the designated communication port as it is.
  • each communication port of the OpenFlow forwarding device only needs to respectively generate a group table corresponding to the tagged mode and the untagged mode, that is, each communication for the OpenFlow forwarding device.
  • the port only needs to generate two group tables.
  • this embodiment can greatly reduce the number of group tables that the SDN controller needs to generate. And greatly reducing the occupation of the group table resources of the OpenFlow forwarding device, reducing the interaction of the number of group tables between the SDN controller and the OpenFlow forwarding device, and improving resource utilization.
  • the OpenFlow forwarding device can forward the traffic based on the group table after receiving the traffic.
  • the matching field in the traffic packet matches the matching field in the local flow table.
  • the group table identifier in the flow table is extracted. (Group ID), then go to the corresponding group table and execute the matched group table. If the flow table is not matched, the traffic is forwarded to the SDN controller, and the SDN controller generates a flow table for the traffic. As shown in FIG.
  • the traffic forwarding control apparatus in this embodiment further includes a flow table configuration module 14 configured to obtain a port identifier of the output port of the traffic and a virtual local area network identifier value, and determine an output port to join the traffic according to the virtual local area network identifier value.
  • the method of adding the virtual local area network further extracts the corresponding shared virtual local area network information; and is configured to perform the coding according to the port identifier of the output port, the shared virtual local area network information, and the corresponding group table type, and generate the group table identifier into the flow table and send the information to the The open stream forwarding device corresponding to the output port.
  • modules in this embodiment may be implemented by a processor or a controller in the SDN controller. It will be apparent to those skilled in the art that the functions of the various modules described above can be implemented by a processor or controller in a server. That is, the modules or steps of the embodiments of the present invention may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the present embodiment is further illustrated by taking the networking application scenario shown in FIG. 1 as an example.
  • the SDN controller is used to merge the group to be sent to the OF-DPA forwarding device. To save the Group resources on the forwarding device and reduce the message interaction between the controller and the forwarding device about the OpenFlow Group table.
  • the following is an example of a method for merging a group on an OF-DPA forwarding device by using an SDN controller in an OpenFlow environment, and may be applied to other software-defined networks or other OpenFlow forwarding devices.
  • the SDN controller shown in Figure 1 controls two OpenFlow forwarding devices through the OpenFlow protocol.
  • two OF-DPA switches are respectively exemplified by DPID 1 and DPID 2, and respectively have communication ports whose numbers (ie, communication port identifiers) are 1, 2.
  • Port 1 of DPID1 is added to VLAN 10 in untagged mode and added to the VLAN in tagged mode [21, 30]; port 2 of DPID1 is added to the VLAN in tagged mode. 1,30]; port 1 of DPID2 is added to VLAN [1, 30] in untagged mode; port 2 of DPID2 is added to VLAN in tagged mode [1, 30].
  • the SDN controller sends the group table to DPID1 and DPID2 using the OpenFlow protocol.
  • the specific steps are as follows:
  • the group 11 is generated for the VLAN 10 that is added in the untagged mode.
  • the three types of information namely, GroupType, DefaultUntagVlan, and PortId1, are encoded in the system-assigned encoding mode.
  • the encoded result is used as the GroupId11.
  • the content of Group11 is stripped of the VLAN tag and output from port 1.
  • the SDN controller sends the Group11 to DPID1 using the OpenFlow protocol.
  • the content and form of Group11 are shown in Table 4 below:
  • the code (group-type, DefaultUntagVlan, port-id) in the table is a way to encode the group-type, DefaultUntagVlan, and port-id to generate a group-id.
  • the group 12 is generated for the VLAN [21, 30] added in the tagged manner, and the three types of information of the GroupType, the DefaultTagVlan, and the PortId1 are encoded by using the system-defined coding scheme, and the coding result is used as the GroupId12.
  • the contents of Group12 are output from port 1.
  • the SDN controller sends the Group12 to DPID1 using the OpenFlow protocol.
  • the content and form of Group12 are shown in Table 5 below.
  • the group 13 is generated for the VLAN [1, 30] added in the tagged mode, and the three types of information of the GroupType, DefaultTagVlan, and PortId 2 are encoded by using the system-defined encoding.
  • the encoding result is used as the GroupId13, and the content of the Group13 is Output from port 2.
  • the SDN controller sends the Group13 to DPID1 using the OpenFlow protocol.
  • the content and form of Group13 are shown in Table 6 below.
  • the group 21 is generated for the VLAN [1, 30] added in the untagged mode, and the three types of information of the GroupType, the DefaultUntagVlan, and the PortId 1 are encoded by using the system convention coding mode, and the coding result is used as the GroupId21.
  • the content of Group21 is stripped of the VLAN tag and output from port 1.
  • the SDN controller sends the Group21 to DPID2 using the OpenFlow protocol.
  • the content and form of Group21 are shown in Table 7 below.
  • the group 22 is generated for the VLAN [1, 30] added in the tagged mode.
  • the information of the GroupType, DefaultTagVlan, and PortId 2 is encoded by the system-defined encoding.
  • the encoding result is the GroupId22, and the content of the Group22 is Output from port 2.
  • the SDN controller sends the Group22 to DPID2 using the OpenFlow protocol.
  • the content and form of Group22 are shown in Table 8 below.
  • the SDN controller After the group table of each port on the forwarding device is generated, the SDN controller sends an OPenFlow flow table to the relevant forwarding device according to the TOPO information. Taking the communication from the first host Host1 to the second host Host2 in FIG. 1 as an example, the OpenFlow flow table diagrams sent by the SDN controller to the OF-DPA forwarding devices DPID1 and DPID2 are shown in Table 9 and Table 10, respectively.
  • MAC_H2 is the MAC address of the second host in FIG.
  • the communication process from Host1 to Host2 is as follows:
  • the packet sent by Host1 enters the switch from port 1 of DPID1, matches the flow table with the table-id of 1 on DPID1, and executes the action in the flow table.
  • the packet enters the flow table with the table-id of 2.
  • the action of the flow table with the table-id of 2 is to execute the content in the Group pointed to by the Groupid13. It can be known from Table 6 that the action of Group 13 pointed to by Groupid 13 is output from port 2, and the message enters the DPID2 switch.
  • the packet from the port 2 of the DPID2 is matched with the flow table with the table-id of 1 on the DPID2.
  • the action is executed in the flow table.
  • the packet enters the flow table with the table-id of 2.
  • the action of the flow table with the table-id of 2 is to execute the content in the Group pointed to by the Groupid22.
  • the action of Group 22 pointed to by Groupid 22 is output from port 2, and the message enters Host 2.
  • both Group13 and Group22 can satisfy the communication requirements of Host1 to Host2. It can be seen that the method of combining the groups on the same port provided by the embodiment of the present invention can replace the mode of each group corresponding to one group, thereby saving group resources and reducing group message interaction between the SDN controller and the OpenFlow switch.
  • the merging method of the foregoing invention is not limited to the attributes of the VLAN, and the method provided by the embodiment of the present invention may be used according to specific service attributes.
  • the forwarding device is also not limited to the OF-DPA device, and any OpenFlow forwarding device can be used. In the embodiment of the present invention, only one group table is required for each communication port on the OpenFlow forwarding device, which saves the group resource on the forwarding device and reduces the message interaction between the controller and the forwarding device about the group table.
  • the technical solution provided by the embodiment of the present invention can be applied to the field of communications.
  • the traffic forwarding control method and device, the software-defined network controller, and the computer storage medium provided by the embodiment of the present invention acquire the virtual local area network configuration information of each communication port of the OpenFlow forwarding device (OpenFlow forwarding device), and the virtual local area network configuration information includes: The virtual local area network information added by the port and the joining mode of joining the virtual local area network; then converting all the virtual local area network information of the same manner on each communication port into a corresponding shared virtual local area network information is generated in a group table; that is, the implementation of the present invention
  • a group table in the example corresponds to all the virtual local area networks corresponding to the same joining mode on the communication port, and not one group table corresponds to one virtual local area network; then the group table is sent to the open stream forwarding device for the open stream forwarding device to forward the traffic.
  • a group table in the embodiment of the present invention corresponds to all virtual local area networks corresponding to the same joining mode on the communication port. Therefore, the number of group tables required for a communication port is equal to the number of joining modes of the virtual local area network, which can be greatly reduced.
  • the software-defined network controller needs to generate and deliver the group table quantity, and can also reduce the group table resources consumed by the open stream forwarding device to improve resource satisfaction.

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Abstract

La présente invention concerne un procédé de commande de transfert de trafic, un appareil, un contrôleur de réseautage défini par logiciel et un support de stockage informatique. Le procédé comprend les étapes consistant à : acquérir des informations de configuration de VLAN pour des ports de communication d'un dispositif de transfert OpenFlow; et ensuite convertir toutes les informations des VLAN, qui ont le même procédé de connexion à un port de communication, en des informations de VLAN communes correspondantes et générer celles-ci dans une table de groupes. Dans la présente invention, une table de groupes correspond à tous les VLAN ayant le même procédé de connexion à un port de communication, au lieu qu'une une table de groupe corresponde à un VLAN. Il en résulte que, pour un port de communication, le nombre de tables de groupes requis est égal au nombre de procédés de connexion à un VLAN pour ce port. Ainsi, la présente invention peut fortement réduire la quantité de tables de groupes générées et envoyées par un contrôleur de réseautage défini par logiciel et peut également réduire des ressources de tables de groupes consommées par un dispositif de transfert OpenFlow, ce qui améliore l'utilisation des ressources.
PCT/CN2017/104046 2016-09-28 2017-09-28 Procédé de commande de transfert de trafic, appareil, contrôleur de réseautage défini par logiciel et support de stockage informatique WO2018059503A1 (fr)

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