CN113438606A - Message transmission method, device, related equipment and storage medium - Google Patents

Message transmission method, device, related equipment and storage medium Download PDF

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Publication number
CN113438606A
CN113438606A CN202010209016.9A CN202010209016A CN113438606A CN 113438606 A CN113438606 A CN 113438606A CN 202010209016 A CN202010209016 A CN 202010209016A CN 113438606 A CN113438606 A CN 113438606A
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spn
information
output
equipment
channel
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CN113438606B (en
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蔡谦
李晗
张德朝
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • 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
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The invention discloses a message transmission method, a message transmission device, related equipment and a storage medium. Wherein the method comprises the following steps: transmitting first information to a Sliced Packet Network (SPN) device; wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.

Description

Message transmission method, device, related equipment and storage medium
Technical Field
The present invention relates to the field of wireless communications, and in particular, to a method, an apparatus, a related device, and a storage medium for transmitting a packet.
Background
In a fifth Generation mobile communication system (5G, 5th Generation), in order to meet Network requirements such as large bandwidth, low latency, hard isolation, flexible connection, and the like, different types of service packets may be transmitted through channels between multiple SPN devices based on a Sliced Packet Network (SPN) mechanism. Because the utilization rate of the channel of the SPN device is not high, the transmission efficiency of the service packet is low.
Disclosure of Invention
In order to solve the existing technical problem, embodiments of the present invention provide a message transmission method, apparatus, related device, and storage medium, which at least solve the problem of low channel utilization rate of an SPN device.
The technical scheme of the embodiment of the invention is realized as follows:
at least one embodiment of the present invention provides a packet transmission method applied to a Software Defined Network (SDN) device, including:
sending the first information to the SPN equipment;
wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
Further, in accordance with at least one embodiment of the present invention, the method further comprises:
and configuring a multicast group for the SPN equipment.
Further, in accordance with at least one embodiment of the present invention, the method further comprises:
and configuring an input channel and an output channel corresponding to the multicast group for the SPN equipment.
Further, in accordance with at least one embodiment of the present invention, the method further comprises:
establishing a corresponding relation among a multicast group, an input channel and an output channel of the SPN equipment;
and carrying the established corresponding relation among the multicast group, the input channel and the output channel in the first information.
Further, in accordance with at least one embodiment of the present invention, the method further comprises:
configuring an input port and an output port corresponding to a multicast group for the SPN equipment; the input port corresponds to an input channel; the output port corresponds to the output channel.
Further, in accordance with at least one embodiment of the present invention, the method further comprises:
establishing a corresponding relation among a multicast group, an input port and an output port of the SPN equipment;
and carrying the established corresponding relation among the multicast group, the input port and the output port in the first information.
At least one embodiment of the present invention provides a packet transmission method, which is applied to an SPN device, and the method includes:
receiving first information sent by SDN equipment; the first information at least represents the corresponding relation between an input channel and an output channel of the SPN equipment;
after a service message is acquired, determining at least two output channels corresponding to input channels of the service message according to the first information;
and sending the service message to receiving equipment respectively corresponding to the at least two output channels.
Furthermore, according to at least one embodiment of the present invention, the determining, according to the first information, at least two output channels corresponding to input channels of the service packet includes:
acquiring identification information of a service message;
determining the type corresponding to the identification information of the service message according to the corresponding relation between the message identification and the message type;
judging whether the determined type is matched with a preset type or not;
and when the determined type is matched with a preset type, determining at least two output channels corresponding to the input channels of the service messages according to the first information.
Furthermore, according to at least one embodiment of the present invention, when the determined type matches a preset type, determining, according to the first information, at least two output channels corresponding to an input channel of the service packet, includes:
when the determined type is matched with the preset type, starting a multicast function;
and determining at least two output channels corresponding to the input channels of the service messages according to the first information.
In addition, according to at least one embodiment of the present invention, the first information further characterizes a corresponding relationship among a multicast group, an input channel, and an output channel of the SPN device; the determining, according to the first information, at least two output channels corresponding to the input channel of the service packet includes:
determining a first multicast group corresponding to the current SPN equipment;
determining at least two output channels corresponding to the first multicast group according to the first information;
and taking the determined at least two output channels as at least two output channels corresponding to the input channels of the service messages.
In addition, according to at least one embodiment of the present invention, the first information further characterizes a corresponding relationship between a multicast group of the SPN device and the input port and the output port; the sending the service packet to the receiving devices respectively corresponding to the at least two output channels includes:
copying the service message to obtain a copied service message;
determining a first multicast group corresponding to the current SPN equipment;
determining at least two output ports corresponding to the first multicast group according to the first information;
and transmitting the copied service message to the at least two output channels through the at least two output ports according to a time division multiplexing mode, and transmitting the service message to corresponding receiving equipment through the at least two output channels.
At least one embodiment of the present invention provides a packet transmission apparatus, including:
the sending unit is used for sending the first information to the SPN equipment; wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
At least one embodiment of the present invention provides a packet transmission apparatus, including:
the SDN equipment comprises a receiving unit, a processing unit and a processing unit, wherein the receiving unit is used for receiving first information sent by the SDN equipment; the first information at least represents the corresponding relation between an input channel and an output channel of the SPN equipment;
the processing unit is used for determining at least two output channels corresponding to the input channels of the service messages according to the first information after the service messages are acquired;
and the sending unit is used for sending the service message to receiving equipment respectively corresponding to the at least two output channels.
At least one embodiment of the present invention provides an SDN device, including:
the first communication interface is used for sending first information to the SPN equipment; wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
At least one embodiment of the present invention provides an SPN device, comprising:
the second communication interface receives first information sent by the SDN equipment; the first information at least represents the corresponding relation between an input channel and an output channel of the SPN equipment;
the processor is used for determining at least two output channels corresponding to the input channels of the service messages according to the first information after the service messages are obtained;
and the second communication interface is further configured to send the service packet to receiving devices respectively corresponding to the at least two output channels.
An embodiment of the invention provides an SDN device comprising a first processor and a first memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute the steps of any one of the methods at the SDN device side when running the computer program.
An embodiment of the invention provides an SPN device, comprising a second processor and a second memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute the steps of any one of the methods of the SPN device side when running the computer program.
An embodiment of the present invention provides a storage medium, on which a computer program is stored, which, when executed by a processor, implements, or, when executed, implements, the steps of any of the methods described above.
In the embodiment of the invention, SDN equipment sends first information to SPN equipment; wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message. By adopting the scheme of the embodiment of the invention, the input channel and the output channel of the SPN equipment have definite corresponding relation, so that after the SDN equipment sends the first information to the SPN equipment, in the process of carrying out multicast transmission on the service message through the SPN equipment, when the same type of service message is transmitted on the channel between the two SPN equipment, a plurality of independent input channels are not required to be occupied, thus the problem of low utilization rate of the channel of the SPN equipment is solved, and the resource waste is avoided.
Drawings
Fig. 1 is a schematic diagram illustrating an SPN device implementing data forwarding using a channel in the related art;
fig. 2 is a schematic flow chart of a method for transmitting a packet at an SDN device side according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an SPN device according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a method for transmitting a message on an SPN device side according to an embodiment of the present invention;
fig. 5 is a schematic diagram of an SPN device forwarding a service packet to other SPN devices through an NNI interface according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of an NNI interface of an embodiment of the present invention;
fig. 7 is a schematic diagram of an SPN device performing multicast forwarding on a service packet according to an embodiment of the present invention;
FIG. 8 is a flowchart illustrating a method for message transmission according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a message transmission apparatus according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of another message transmission apparatus according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an SDN device according to an embodiment of the present invention;
FIG. 12 is a schematic structural diagram of an SPN device according to an embodiment of the present invention;
fig. 13 is a schematic diagram of a message transmission system according to an embodiment of the present invention.
Detailed Description
Before the technical solution of the embodiment of the present invention is introduced, a description is given of a related art.
In the related art, the 5G system needs to support multiple services, such as: enhanced Mobile Broadband (eMBB) service with higher bandwidth and lower time delay, Internet of things (mMTC) service supporting Massive user connection, ultra Reliable and ultra Low delay (uRLLC) service and the like. The 5G system also needs to support a variety of application scenarios, such as: the system comprises high-definition/ultra-high-definition and even three-dimensional (3D) holographic films and videos which are ubiquitous in dense urban areas, high-speed user experience of 100Mbps anywhere, high-speed mobile application of more than 350km/h, a sensor network, a touch internet, E-Health, natural disaster monitoring and the like. In the 5G system, it is also necessary to support packet transmission of different service types, and in order to meet network requirements of large bandwidth, low delay, hard isolation, flexible connection, unified management and control, high-precision time synchronization, and the like, the service packets of different types may be transmitted through channels between multiple SPN devices based on a slice packet network mechanism, and specifically, the SPN devices acquire the service packets through input ports, that is, UNI interfaces, perform conversion processing on the service packets, for example, 64B/66B codec processing, and transmit the service packets to channels where the SPN devices are connected to other SPN devices through output ports, that is, NNI interfaces, of the SPN devices, and finally transmit the service packets to other SPN devices.
Fig. 1 is a schematic diagram of an SPN device using a channel to implement data forwarding in the related art, and as shown in fig. 1, a transmission path of a service packet a is SPN0-SPN1-SPN2-SPN 3; the transmission path of the service packet B is SPN0-SPN1-SPN2-SPN4, and assuming that the type of the service packet a is the same as that of the service packet B, two independent channels need to be established when the same service packet is transmitted between the SPN0 and the SPN1, and the two channels cannot be shared. It can be seen that the utilization rate of the channel of the SPN device is not high, and therefore the transmission efficiency of the service packet is low.
Based on this, in various embodiments of the present invention, first information is sent to the SPN device; wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
By adopting the scheme of the embodiment of the invention, the input channels and the output channels of the SPN equipment have definite corresponding relation, so that when a plurality of SPN equipment carry out multicast transmission (one-to-many transmission) on the service messages, a plurality of independent input channels are not required to be occupied when the same type of service messages are transmitted on the channel between two SPN equipment, thus the problem of low utilization rate of the channel of the SPN equipment is solved, and the resource waste is avoided.
The present invention will be described in further detail with reference to the accompanying drawings and examples.
An embodiment of the present invention provides a packet transmission method, which is applied to an SDN device, and as shown in fig. 2, the method includes:
step 201: sending the first information to the SPN equipment;
wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
Here, in actual application, in step 201, the providing for the SPN device to multicast and send a service packet may mean that the SPN device sends a service packet to a plurality of receiving devices after receiving the service packet; the receiving device may refer to an SPN device other than the SPN device.
Here, a channel between two SPN devices may be referred to as an input channel when used for inputting a traffic packet, and may be referred to as an output channel when used for outputting a traffic packet.
Here, the correspondence relationship between the input channel and the output channel of the SPN device may mean that one input channel of the SPN device corresponds to a plurality of output channels. When the input channels and the output channels of the SPN devices are in a one-to-many correspondence, a plurality of independent channels need not be established between every two SPN devices. In other words, when the same service message is transmitted between every two SPN devices, it is not necessary to occupy multiple independent channels, and thus, when the service message is multicast-transmitted, it is not necessary to occupy multiple independent input channels, so that the utilization rate of the channels of the SPN devices is improved, and resource waste is avoided.
In the embodiment of the present invention, the SDN device may specifically refer to an SDN management and control platform, and may also refer to an EMS network management device.
In actual application, if the SDN device configures a multicast function for the SPN device, the SPN device has a function of supporting multicast, and thus, multicast transmission can be subsequently performed on the service packet. If the SDN device does not configure the multicast function for the SPN device, the SPN device does not have a function of supporting multicast, and thus unicast transmission may be subsequently performed on the service packet.
Based on this, in an embodiment, the method further comprises:
and configuring a multicast group for the SPN equipment.
Here, configuring the multicast group for the SPN device may refer to configuring a corresponding multicast group identifier for the SPN device. If the SPN equipment is configured with the multicast group identifier, the SPN equipment has the function of supporting multicast; if the SPN device is not configured with the multicast group identifier, the SPN device does not have the function of supporting multicast.
For example, as shown in fig. 3, if the SPN0 does not configure the multicast group identifier, the SPN0 does not have the function of supporting multicast; the SPN1 configures the multicast group identifier, and if the multicast group is 1, the SPN1 has a function of supporting multicast; the SPN2 configures the multicast group identifier, and if the multicast group is 2, the SPN2 has a function of supporting multicast; the SPN3 has the multicast group id configured, and if the multicast group id is set to multicast group 3, the SPN3 has the function of supporting multicast, as shown in table 1.
SPN device Multicast group identification Whether to support multicast functions
SPN0 Is free of Whether or not
SPN1 Multicast group 1 Is that
SPN2 Multicast group 2 Is that
SPN3 Multicast group 3 Is that
TABLE 1
Here, the SDN device configures a multicast group for the SPN device, and has the following advantages:
whether the SDN equipment has the function of supporting multicast can be identified, so that if the SPN equipment has the function of supporting multicast, the multicast function can be started when the subsequent SPN equipment transmits multicast messages, and multicast transmission can be performed on the multicast messages; if the SPN device does not have the function of supporting multicast, the subsequent SPN device does not need to start the multicast function when transmitting the unicast message, and the unicast message can be transmitted in a broadcast mode. Therefore, the multicast and broadcast functions of the SPN equipment can be realized, and the flexible transmission of different types of service messages can be realized.
In practical application, in order to transmit the service packet between the SPN devices, a channel for transmitting the service packet may be configured for the SPN devices.
Based on this, in an embodiment, the method further comprises:
channels are configured for SPN devices.
There is only one channel between each two SPN devices, and this channel may be referred to as an SE channel, or an SE L1 channel.
For example, as shown in fig. 3, a channel is provided between SPN0 and SPN1, a channel is provided between SPN1 and SPN2, and a channel is provided between SPN1 and SPN 3.
In practical application, the types of channels of the SPN device, such as an input channel and an output channel, need to be configured according to the transmission direction of the service packet.
Based on this, in an embodiment, the method further comprises:
and configuring an input channel and an output channel corresponding to the multicast group for the SPN equipment.
Wherein, a channel between two SPN devices is used for inputting a service packet, and the channel may be referred to as an input channel; a channel between two SPN devices is used to output a service packet, and the channel may be referred to as an output channel.
In practical application, if the corresponding relationship among the multicast group, the input channel, and the output channel of the SPN device is configured, during the multicast transmission of the service packet by the SPN device, the SPN device may determine at least two corresponding output channels based on the multicast group and the input channel of the service packet, and send the service packet to at least two corresponding receiving devices through the at least two output channels.
Based on this, in an embodiment, the method further comprises:
establishing a corresponding relation among a multicast group, an input channel and an output channel of the SPN equipment;
and carrying the established corresponding relation among the multicast group, the input channel and the output channel in the first information.
For example, as shown in table 2, the SPN0 is not configured with a multicast group id, and the output channel is denoted by the number 0; the multicast group identification of SPN1 is multicast group 1, the input channel is denoted by the number 0, and the output channels are denoted by 1 and 2; the multicast group identification of SPN2 is multicast group 2, the input channel is denoted by the number 1, and the output channels are denoted by 3 and 4; the multicast group identification of SPN3 is multicast group 3, the input channel is denoted by the numeral 2, and the output channels are denoted by 5 and 6.
SPN device Multicast group identification Input channel Output channel
SPN0 Is free of Is free of 0
SPN1 Multicast group 1 0 1、2
SPN2 Multicast group 2 1 3、4
SPN3 Multicast group 3 2 5、6
TABLE 2
Here, the SDN device configures a corresponding relationship between the multicast group, the input channel, and the output channel for the SPN device, and has the following advantages:
in the process of performing multicast transmission on the service packet by the SPN device, the SPN device may determine at least two corresponding output channels based on its own multicast group and an input channel of the service packet, and send the service packet to at least two corresponding receiving devices through the at least two output channels, thereby implementing the multicast transmission function of the SPN.
In practical applications, the SPN device may include an input port and a plurality of output ports, where the input port may correspond to an input channel, and the plurality of output ports may correspond to a plurality of output channels one to one.
Based on this, in an embodiment, the method further comprises:
configuring an input port and an output port corresponding to a multicast group for the SPN equipment; the input port corresponds to an input channel; the output port corresponds to the output channel.
Based on this, in an embodiment, the method further comprises:
establishing a corresponding relation among a multicast group, an input port and an output port of the SPN equipment;
and carrying the established corresponding relation among the multicast group, the input port and the output port in the first information.
The SPN device can receive a service message input by the input channel based on the input port; the output port of the SPN device is connected to the output channel, and the SPN device can output the service packet to the corresponding output channel based on the output port, and finally send the service packet to other SPN devices.
By adopting the scheme of the embodiment of the invention, the input channels and the output channels of the SPN equipment have definite corresponding relation, so that when a plurality of SPN equipment carry out multicast transmission (one-to-many transmission) on the service messages, a plurality of independent input channels are not required to be occupied when the same type of service messages are transmitted on the channel between two SPN equipment, thus the problem of low utilization rate of the channel of the SPN equipment is solved, and the resource waste is avoided.
Correspondingly, an embodiment of the present invention further provides a message transmission method, which is applied to an SPN device, and as shown in fig. 4, the method includes:
step 401: receiving first information sent by SDN equipment; the first information at least represents the corresponding relation between an input channel and an output channel of the SPN equipment;
step 402: after a service message is acquired, determining at least two output channels corresponding to input channels of the service message according to the first information;
step 403: and sending the service message to receiving equipment respectively corresponding to the at least two output channels.
Here, the correspondence relationship between the input channel and the output channel of the SPN device may mean that one input channel of the SPN device corresponds to a plurality of output channels. When the input channels and the output channels of the SPN devices are in a one-to-many correspondence, a plurality of independent channels need not be established between every two SPN devices. In other words, when the same service message is transmitted between every two SPN devices, it is not necessary to occupy multiple independent channels, and thus, when the service message is multicast-transmitted, it is not necessary to occupy multiple independent input channels, so that the utilization rate of the channels of the SPN devices is improved, and resource waste is avoided.
In practical application, after receiving a service message, the SPN device may perform multicast transmission on the service message if the type of the service message is a multicast message type; if the type of the service message is not the multicast message type, the SPN device may unicast the service message.
Based on this, in an embodiment, the determining, according to the first information, at least two output channels corresponding to input channels of the service packet includes:
acquiring identification information of a service message;
determining the type corresponding to the identification information of the service message according to the corresponding relation between the message identification and the message type;
judging whether the determined type is matched with a preset type or not;
and when the determined type is matched with a preset type, determining at least two output channels corresponding to the input channels of the service messages according to the first information.
For example, if the value of the field corresponding to the identification information of the service packet is 0, it indicates that the type of the service packet is a multicast packet, and if the value of the field corresponding to the identification information of the service packet is 1, it indicates that the type of the service packet is a unicast packet.
In practical application, if the SPN device has a function of supporting multicast, after determining that the type of the service packet is a multicast packet type, the multicast function may be turned on to perform multicast transmission on the service packet; if the SPN equipment does not have the function of supporting multicast, unicast transmission can be carried out on the service message without starting the multicast function.
When the determined type is matched with a preset type, determining at least two output channels corresponding to the input channels of the service messages according to the first information, wherein the determining comprises the following steps:
when the determined type is matched with the preset type, starting a multicast function;
and determining at least two output channels corresponding to the input channels of the service messages according to the first information.
In practical application, after determining that the service packet type is a multicast packet type and starting a multicast function, the SPN device may perform multicast transmission on the service packet according to a correspondence relationship between a multicast group, an input channel, and an output channel.
Based on this, in an embodiment, the first information further represents a corresponding relationship among a multicast group, an input channel, and an output channel of the SPN device; the determining, according to the first information, at least two output channels corresponding to the input channel of the service packet includes:
determining a first multicast group corresponding to the current SPN equipment;
determining at least two output channels corresponding to the first multicast group according to the first information;
and taking the determined at least two output channels as at least two output channels corresponding to the input channels of the service messages.
Wherein the first multicast group may be a multicast group identifier of the current SPN device. The multicast group identifier of the current SPN device may be carried in the service message. The service packet may also carry an identifier of an input channel of the current SPN device.
Here, determining at least two output channels corresponding to the first multicast group according to the first information specifically includes the following two cases:
in the first case, the service packet carries the multicast group identifier.
Specifically, a multicast group identifier carried by a service packet is used as a first multicast group of the current SPN device; and determining at least two output channels corresponding to the first multicast group according to the corresponding relation among the multicast group, the input channel and the output channel of the SPN equipment.
For example, suppose that the service packet carries a multicast group identifier as multicast group 1, and table 2 is looked up to obtain output channels corresponding to SPN1 of the current SPN device as output channel 1 and output channel 2.
In the second case, the service packet carries the identifier of the input channel of the current SPN device.
Specifically, at least two output channels corresponding to the man input channel of the service packet are determined according to the corresponding relationship among the multicast group, the input channel and the output channel of the SPN device, and the identifier of the input channel of the current SPN device carried in the service packet.
For example, suppose that the service packet carries the identifier of the input channel as input channel 1, and the output channels corresponding to the SPN1 of the current SPN device obtained by looking up table 2 are output channel 3 and output channel 4.
In practical application, after determining that the service packet type is the multicast packet type and starting the multicast function, the SPN device may further send the service packet to other multiple SPN devices based on the correspondence between the multicast group and the input port and the output port.
Based on this, in an embodiment, the first information further characterizes a correspondence relationship between a multicast group of the SPN device and the input port and the output port; the sending the service packet to the receiving devices respectively corresponding to the at least two output channels includes:
copying the service message to obtain a copied service message;
determining a first multicast group corresponding to the current SPN equipment;
determining at least two output ports corresponding to the first multicast group according to the first information;
and transmitting the copied service message to the at least two output channels through the at least two output ports according to a time division multiplexing mode, and transmitting the service message to corresponding receiving equipment through the at least two output channels.
The SPN device may transmit the copied service packet to the at least two output channels in a time division multiplexing manner through at least two output ports, that is, NNI interfaces, and send the service packet to the corresponding receiving device through the at least two output channels.
Fig. 5 is a schematic diagram of an SPN device forwarding a service packet to other SPN devices through an NNI interface, and as shown in fig. 5, the service packet may be fragmented at the NNI interface of the SPN device to obtain a plurality of data segments, each data segment is bound with a corresponding time slot, and each data segment is sent to other SPN devices using a time division link.
Fig. 6 is a schematic diagram of an NNI interface, which may be implemented based on a FlexE interface. The FlexE interface may be implemented in the PCS layer of the 100GBASE-R protocol stack. Each Flexe interface can comprise a MAC (media access control), a recombination sublayer and an XMII, and the modules above the Flexe interface operate at the speed of the Flexe interface; the parameters of the modules below the FlexE interface are not modified, and the modules below the FlexE interface include 100GBASE-R PMA, optional FEC and PMD.
In an example, as shown in fig. 7, a process of performing multicast forwarding on a service packet by an SPN device is described, where the process includes:
step 701: receiving a service message through an input port;
step 702: judging whether the multicast message is a multicast message; when the multicast message is determined, executing step 703;
step 703: judging whether to start the multicast function, and executing step 704 after the multicast function is started;
step 704: and carrying out multicast sending on the service message according to the first information.
Specifically, according to the corresponding relationship among the multicast group, the input channel and the output channel represented by the first information, at least two output channels corresponding to the input channel of the service message are determined; and sending the service message to receiving equipment respectively corresponding to the at least two output channels.
An embodiment of the present invention provides a packet transmission method, as shown in fig. 8, where the method includes:
step 801: the SDN equipment sends first information to the SPN equipment;
wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
Step 802: receiving first information sent by SDN equipment by SPN equipment; after a service message is acquired, determining at least two output channels corresponding to input channels of the service message according to the first information; and sending the service message to receiving equipment respectively corresponding to the at least two output channels.
It should be noted that: specific processing procedures of the SDN device and the SPN device are described in detail above, and are not described herein again.
In the message transmission method provided by the embodiment of the present invention, a definite corresponding relationship exists between the input channel and the output channel of the SPN device, and thus, after the SDN device sends the first information to the SPN device, in the process of performing multicast transmission on the service message by the SPN device, when the service message of the same type is transmitted on the channel between two SPN devices, a plurality of independent input channels do not need to be occupied, so that the problem of low utilization rate of the channel of the SPN device is solved, and resource waste is avoided.
In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a packet transmission device, which is disposed on an SDN device, and as shown in fig. 9, the device includes:
a sending unit 91, configured to send first information to an SPN device; wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
In one embodiment, the apparatus further comprises:
and the configuration unit is used for configuring the multicast group for the SPN equipment.
In an embodiment, the configuration unit is further configured to:
and configuring an input channel and an output channel corresponding to the multicast group for the SPN equipment.
In one embodiment, the apparatus further comprises:
the device comprises an establishing unit, a processing unit and a processing unit, wherein the establishing unit is used for establishing the corresponding relation among a multicast group, an input channel and an output channel of the SPN equipment;
and carrying the established corresponding relation among the multicast group, the input channel and the output channel in the first information.
In an embodiment, the configuration unit is further configured to:
configuring an input port and an output port corresponding to a multicast group for the SPN equipment; the input port corresponds to an input channel; the output port corresponds to the output channel.
In an embodiment, the establishing unit is further configured to:
establishing a corresponding relation among a multicast group, an input port and an output port of the SPN equipment;
and carrying the established corresponding relation among the multicast group, the input port and the output port in the first information.
In practical application, the sending unit 91 may be implemented by a communication interface in a message transmission device; the configuration unit and the establishment unit can be realized by a processor in the message transmission device in combination with a communication interface.
In order to implement the method on the SPN device side in the embodiments of the present invention, a message transmission apparatus is further provided in the embodiments of the present invention, and as shown in fig. 10, the apparatus includes:
a receiving unit 101, configured to receive first information sent by an SDN device; the first information at least represents the corresponding relation between an input channel and an output channel of the SPN equipment;
the processing unit 102 is configured to determine, after acquiring a service packet, at least two output channels corresponding to input channels of the service packet according to the first information;
a sending unit 103, configured to send the service packet to receiving devices respectively corresponding to the at least two output channels.
In an embodiment, the processing unit 102 is specifically configured to:
acquiring identification information of a service message;
determining the type corresponding to the identification information of the service message according to the corresponding relation between the message identification and the message type;
judging whether the determined type is matched with a preset type or not;
and when the determined type is matched with a preset type, determining at least two output channels corresponding to the input channels of the service messages according to the first information.
In an embodiment, the processing unit 102 is specifically configured to:
when the determined type is matched with the preset type, starting a multicast function;
and determining at least two output channels corresponding to the input channels of the service messages according to the first information.
In an embodiment, the processing unit 102 is specifically configured to:
the first information also represents the corresponding relation among the multicast group, the input channel and the output channel of the SPN equipment;
determining a first multicast group corresponding to the current SPN equipment;
determining at least two output channels corresponding to the first multicast group according to the first information;
and taking the determined at least two output channels as at least two output channels corresponding to the input channels of the service messages.
In an embodiment, the processing unit 102 is specifically configured to:
the first information also represents the corresponding relation between the multicast group of the SPN equipment and the input port and the output port; the sending the service packet to the receiving devices respectively corresponding to the at least two output channels includes:
copying the service message to obtain a copied service message;
determining a first multicast group corresponding to the current SPN equipment;
determining at least two output ports corresponding to the first multicast group according to the first information;
and transmitting the copied service message to the at least two output channels through the at least two output ports according to a time division multiplexing mode, and transmitting the service message to corresponding receiving equipment through the at least two output channels.
In practical application, the receiving unit 101 and the sending unit 103 may be implemented by communication interfaces in a message transmission device; the processing unit 102 may be implemented by a processor in a message transmission device in conjunction with a communication interface.
It should be noted that: in the message transmission device provided in the foregoing embodiment, when performing message transmission, only the division of the program modules is described as an example, and in practical applications, the processing distribution may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules, so as to complete all or part of the processing described above. In addition, the message transmission apparatus and the message transmission method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.
Based on the hardware implementation of the program module, and in order to implement the method on the SDN device side in the embodiment of the present invention, an embodiment of the present invention further provides an SDN device, as shown in fig. 11, including:
a first communication interface 111 capable of performing information interaction with a second communication device;
the first processor 112 is connected to the first communication interface 111 to implement information interaction with the second communication device, and is configured to execute the method provided by one or more technical solutions of the first communication device side when running a computer program. And the computer program is stored on the first memory 113.
In particular, the amount of the solvent to be used,
a first communication interface 111, configured to send first information to the SPN device; wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
In one embodiment, the first processor 112 is configured to configure a multicast group for the SPN device.
In one embodiment, the first processor 112 is further configured to:
and configuring an input channel and an output channel corresponding to the multicast group for the SPN equipment.
In an embodiment, the first processor 112 is further configured to establish a corresponding relationship between a multicast group, an input channel, and an output channel of the SPN device;
and carrying the established corresponding relation among the multicast group, the input channel and the output channel in the first information.
In one embodiment, the first processor 112 is further configured to:
configuring an input port and an output port corresponding to a multicast group for the SPN equipment; the input port corresponds to an input channel; the output port corresponds to the output channel.
In one embodiment, the first processor 112 is further configured to:
establishing a corresponding relation among a multicast group, an input port and an output port of the SPN equipment;
and carrying the established corresponding relation among the multicast group, the input port and the output port in the first information.
It should be noted that: the specific processing procedures of the first processor 112 and the first communication interface 111 are detailed in the method embodiment, and are not described herein again.
Of course, in practice, the various components in the SDN device are coupled together by the bus system 114. It will be appreciated that the bus system 114 is used to enable communications among the components. The bus system 114 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 114 in FIG. 11.
The first memory 113 in the embodiment of the present invention is used for storing various types of data to support the operation of the SDN device. Examples of such data include: any computer program for operating on an SDN device.
The method disclosed in the above embodiments of the present invention may be applied to the first processor 112, or implemented by the first processor 112. The first processor 112 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the first processor 112. The first Processor 112 may be a general purpose Processor, a Digital Signal Processor (DSP), or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, etc. The first processor 112 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the first memory 113, and the first processor 112 reads the information in the first memory 113 and performs the steps of the foregoing method in combination with its hardware.
In an exemplary embodiment, the SDN Device may be implemented by one or more Application Specific Integrated Circuits (ASICs), DSPs, Programmable Logic Devices (PLDs), Complex Programmable Logic Devices (CPLDs), Field-Programmable Gate arrays (FPGAs), general purpose processors, controllers, Micro Controllers (MCUs), microprocessors (microprocessors), or other electronic components for performing the foregoing methods.
Based on the hardware implementation of the program module, and in order to implement the method on the SPN device side according to the embodiment of the present invention, as shown in fig. 12, the method includes:
a second communication interface 121, which is capable of performing information interaction with the first communication device;
the second processor 122 is connected to the second communication interface 121 to implement information interaction with the first communication device, and is configured to execute the method provided by one or more technical solutions of the second communication device side when running a computer program. And said computer program is stored on said second memory 123.
In particular, the amount of the solvent to be used,
a second communication interface 121, configured to receive first information sent by an SDN device; the first information at least represents the corresponding relation between an input channel and an output channel of the SPN equipment;
the second processor 122 is configured to determine, according to the first information, at least two output channels corresponding to input channels of a service packet after the service packet is obtained;
the second communication interface 121 is further configured to send the service packet to receiving devices respectively corresponding to the at least two output channels.
In an embodiment, the second processor 122 is specifically configured to:
acquiring identification information of a service message;
determining the type corresponding to the identification information of the service message according to the corresponding relation between the message identification and the message type;
judging whether the determined type is matched with a preset type or not;
and when the determined type is matched with a preset type, determining at least two output channels corresponding to the input channels of the service messages according to the first information.
In an embodiment, the second processor 122 is specifically configured to:
when the determined type is matched with the preset type, starting a multicast function;
and determining at least two output channels corresponding to the input channels of the service messages according to the first information.
In an embodiment, the second processor 122 is specifically configured to:
the first information also represents the corresponding relation among the multicast group, the input channel and the output channel of the SPN equipment;
determining a first multicast group corresponding to the current SPN equipment;
determining at least two output channels corresponding to the first multicast group according to the first information;
and taking the determined at least two output channels as at least two output channels corresponding to the input channels of the service messages.
In an embodiment, the second processor 122 is specifically configured to:
the first information also represents the corresponding relation between the multicast group of the SPN equipment and the input port and the output port; the sending the service packet to the receiving devices respectively corresponding to the at least two output channels includes:
copying the service message to obtain a copied service message;
determining a first multicast group corresponding to the current SPN equipment;
determining at least two output ports corresponding to the first multicast group according to the first information;
and transmitting the copied service message to the at least two output channels through the at least two output ports according to a time division multiplexing mode, and transmitting the service message to corresponding receiving equipment through the at least two output channels.
It should be noted that: the specific processing procedures of the second processor 122 and the second communication interface 121 are detailed in the method embodiment, and are not described herein again.
Of course, in practice, the various components of the SPN device are coupled together by a bus system 124. It will be appreciated that the bus system 124 is used to enable communications among the components. The bus system 124 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 124 in fig. 12.
The second memory 123 in the embodiment of the present invention is used to store various types of data to support SPN device operations. Examples of such data include: any computer program for operating on an SPN device.
The method disclosed in the above embodiments of the present invention may be applied to the second processor 122, or implemented by the second processor 122. The second processor 122 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the second processor 122. The second processor 122 described above may be a general purpose processor, a DSP, or other programmable logic device, discrete gate or transistor logic device, discrete hardware components, or the like. The second processor 122 may implement or perform the methods, steps and logic blocks disclosed in the embodiments of the present invention. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed by the embodiment of the invention can be directly implemented by a hardware decoding processor, or can be implemented by combining hardware and software modules in the decoding processor. The software module may be located in a storage medium located in the second memory 123, and the second processor 122 reads the information in the second memory 123, and in combination with its hardware, performs the steps of the foregoing method.
In an exemplary embodiment, the SPN device may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components for performing the foregoing methods.
It is understood that the memories (the first memory 113, the second memory 123) of the embodiments of the present invention may be either volatile memories or nonvolatile memories, and may include both volatile and nonvolatile memories. Among them, the nonvolatile Memory may be a Read Only Memory (ROM), a Programmable Read Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a magnetic random access Memory (FRAM), a Flash Memory (Flash Memory), a magnetic surface Memory, an optical disk, or a Compact Disc Read-Only Memory (CD-ROM); the magnetic surface storage may be disk storage or tape storage. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Enhanced Synchronous Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (DRMB Random Access Memory), Synchronous joint Dynamic Random Access Memory (DRAM). The described memory for embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.
In order to implement the method according to the embodiment of the present invention, an embodiment of the present invention further provides a packet transmission system, as shown in fig. 13, where the system includes:
the SDN device 131 is configured to send the first information to the SPN device;
wherein the first information at least characterizes a correspondence of input channels and output channels of the SPN device,
the SPN device 132 is configured to receive first information sent by the SDN device; after a service message is acquired, determining at least two output channels corresponding to input channels of the service message according to the first information; and sending the service message to receiving equipment respectively corresponding to the at least two output channels.
It should be noted that: the specific processing procedures of the first communication device 81 and the second communication device 82 have been described in detail above, and are not described herein again.
In an exemplary embodiment, the present invention further provides a storage medium, specifically a computer-readable storage medium, for example, a first memory 113 storing a computer program, which is executable by a first processor 112 of an SDN device to perform the steps of the foregoing method. For example, the second memory 123 may store a computer program that is executable by the second processor 122 of the SPN device to perform the steps of the method described above. The computer readable storage medium may be Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disk, or CD-ROM.
It should be noted that: "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In addition, the technical solutions described in the embodiments of the present invention may be arbitrarily combined without conflict.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.

Claims (18)

1. A message transmission method is applied to Software Defined Network (SDN) equipment and comprises the following steps:
sending first information to SPN equipment;
wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
2. The method of claim 1, further comprising:
and configuring a multicast group for the SPN equipment.
3. The method of claim 2, further comprising:
and configuring an input channel and an output channel corresponding to the multicast group for the SPN equipment.
4. The method of claim 3, further comprising:
establishing a corresponding relation among a multicast group, an input channel and an output channel of the SPN equipment;
and carrying the established corresponding relation among the multicast group, the input channel and the output channel in the first information.
5. The method of claim 4, further comprising:
configuring an input port and an output port corresponding to a multicast group for the SPN equipment; the input port corresponds to an input channel; the output port corresponds to the output channel.
6. The method of claim 5, further comprising:
establishing a corresponding relation among a multicast group, an input port and an output port of the SPN equipment;
and carrying the established corresponding relation among the multicast group, the input port and the output port in the first information.
7. A message transmission method is applied to SPN equipment, and is characterized in that the method comprises the following steps:
receiving first information sent by SDN equipment; the first information at least represents the corresponding relation between an input channel and an output channel of the SPN equipment;
after a service message is acquired, determining at least two output channels corresponding to input channels of the service message according to the first information;
and sending the service message to receiving equipment respectively corresponding to the at least two output channels.
8. The method according to claim 7, wherein the determining, according to the first information, at least two output channels corresponding to input channels of the service packet comprises:
acquiring identification information of a service message;
determining the type corresponding to the identification information of the service message according to the corresponding relation between the message identification and the message type;
judging whether the determined type is matched with a preset type or not;
and when the determined type is matched with a preset type, determining at least two output channels corresponding to the input channels of the service messages according to the first information.
9. The method according to claim 8, wherein when the determined type matches a preset type, determining at least two output channels corresponding to input channels of the service packet according to the first information includes:
when the determined type is matched with the preset type, starting a multicast function;
and determining at least two output channels corresponding to the input channels of the service messages according to the first information.
10. The method of claim 7, wherein the first information further characterizes a correspondence of a multicast group, an input channel, and an output channel of the SPN device; the determining, according to the first information, at least two output channels corresponding to the input channel of the service packet includes:
determining a first multicast group corresponding to the current SPN equipment;
determining at least two output channels corresponding to the first multicast group according to the first information;
and taking the determined at least two output channels as at least two output channels corresponding to the input channels of the service messages.
11. The method of claim 7, wherein the first information further characterizes a corresponding relationship between a multicast group of the SPN device and an input port and an output port; the sending the service packet to the receiving devices respectively corresponding to the at least two output channels includes:
copying the service message to obtain a copied service message;
determining a first multicast group corresponding to the current SPN equipment;
determining at least two output ports corresponding to the first multicast group according to the first information;
and transmitting the copied service message to the at least two output channels through the at least two output ports according to a time division multiplexing mode, and transmitting the service message to corresponding receiving equipment through the at least two output channels.
12. A message transmission apparatus, comprising:
the sending unit is used for sending the first information to the SPN equipment; wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
13. A message transmission apparatus, comprising:
the SDN equipment comprises a receiving unit, a processing unit and a processing unit, wherein the receiving unit is used for receiving first information sent by the SDN equipment; the first information at least represents the corresponding relation between an input channel and an output channel of the SPN equipment;
the processing unit is used for determining at least two output channels corresponding to the input channels of the service messages according to the first information after the service messages are acquired;
and the sending unit is used for sending the service message to receiving equipment respectively corresponding to the at least two output channels.
14. An SDN device, comprising:
the first communication interface is used for sending first information to the SPN equipment; wherein the first information at least represents a corresponding relationship between an input channel and an output channel of the SPN device; the first information is used for the SPN equipment to multicast and send the service message.
15. An SPN device, comprising:
the second communication interface receives first information sent by the SDN equipment; the first information at least represents the corresponding relation between an input channel and an output channel of the SPN equipment;
the processor is used for determining at least two output channels corresponding to the input channels of the service messages according to the first information after the service messages are obtained;
and the second communication interface is further configured to send the service packet to receiving devices respectively corresponding to the at least two output channels.
16. An SDN device comprising a first processor and a first memory for storing a computer program operable on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 1 to 6 when running the computer program.
17. An SPN device comprising a second processor and a second memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 7 to 11 when running the computer program.
18. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 6 when executed by a processor or for performing the steps of the method of any one of claims 7 to 11 when executed.
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