WO2016154833A1 - 一种多链路聚合的报文发送方法及装置 - Google Patents

一种多链路聚合的报文发送方法及装置 Download PDF

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Publication number
WO2016154833A1
WO2016154833A1 PCT/CN2015/075337 CN2015075337W WO2016154833A1 WO 2016154833 A1 WO2016154833 A1 WO 2016154833A1 CN 2015075337 W CN2015075337 W CN 2015075337W WO 2016154833 A1 WO2016154833 A1 WO 2016154833A1
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Prior art keywords
priority
link
packet
unit
fragment
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PCT/CN2015/075337
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English (en)
French (fr)
Inventor
梁波
魏骥川
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华为技术有限公司
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Priority to PCT/CN2015/075337 priority Critical patent/WO2016154833A1/zh
Priority to EP15886820.8A priority patent/EP3270565B1/en
Publication of WO2016154833A1 publication Critical patent/WO2016154833A1/zh
Priority to US15/718,623 priority patent/US10367723B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/24—Multipath
    • H04L45/245—Link aggregation, e.g. trunking
    • 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
    • H04L47/41—Flow control; Congestion control by acting on aggregated flows or links
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/30—Routing of multiclass traffic
    • 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
    • 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
    • H04L47/12—Avoiding congestion; Recovering from congestion
    • H04L47/125—Avoiding congestion; Recovering from congestion by balancing the load, e.g. traffic engineering
    • 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
    • H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • 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
    • H04L47/22—Traffic shaping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
    • H04L69/166—IP fragmentation; TCP segmentation
    • 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
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Definitions

  • the embodiments of the present invention relate to the field of communications technologies, and in particular, to a packet sending method and apparatus for multi-link aggregation.
  • the embodiment of the invention provides a method and a device for transmitting a message of a multi-link aggregation, which overcomes the problem of reducing the efficiency and reliability of message transmission when the performance of a member link of a link aggregation group is poor in the prior art. problem.
  • an embodiment of the present invention provides a packet sending method, including:
  • a member link corresponding to the priority of the packet where the link aggregation group includes at least a first member.
  • the reliability of the first member link is higher than the reliability of the second member link, and the correspondence between the priority of the packet and the member link is One priority corresponds to the first member link, and the second priority corresponds to at least one of the second member link and the first member link, wherein the first priority is greater than the second priority
  • the priority of the level is high;
  • the selecting, according to the correspondence between the priority of the packet and the member link in the link aggregation group, before selecting the member link corresponding to the priority of the packet ,Also includes:
  • the selecting, according to the correspondence between the priority of the packet and the member link in the link aggregation group, the member link corresponding to the priority of the packet includes: according to the member fragmentation unit a member link corresponding to the member fragment unit;
  • Transmitting the message on the selected member link includes transmitting the plurality of fragments of the message on the selected member link.
  • the selecting according to the correspondence between the priority of the packet and the member link in the link aggregation group, the member corresponding to the priority of the packet Before the link, it also includes:
  • the selecting, according to the correspondence between the priority of the packet and the member link in the link aggregation group, the member link corresponding to the priority of the packet includes: according to the priority of the packet Corresponding relationship with the member link, selecting a member link corresponding to the plurality of fragments;
  • Transmitting the message on the selected member link includes transmitting the plurality of fragments of the message on the selected member link.
  • the method further includes:
  • the corresponding relationship between the member fragment unit and the member link is configured according to the priority of the packet corresponding to the member fragment unit and the reliability of the member link in the link aggregation group.
  • the method further includes:
  • the corresponding relationship between the member fragment unit and the member link is configured according to the priority of the member fragment unit and the reliability of the member link in the link aggregation group.
  • the group of fragment units includes at least a first member fragment unit and a second member fragment unit,
  • the first priority corresponds to the first member fragmentation unit
  • the second priority corresponds to the second member fragmentation unit, in the correspondence between the priority of the packet and the member fragmentation unit;
  • the first member fragment unit corresponds to the first member link
  • the second member fragment unit corresponds to the second member chain, in the correspondence between the member fragment unit and the member link. At least one of a road and the first member link.
  • the sending, by the selected member link, the multiple fragments of the packet includes:
  • the method further includes:
  • a bandwidth is reserved for each member link, and the reserved bandwidth is used to send non-slice packets.
  • the fragment In conjunction with the first possible implementation of the first aspect, the ninth possible implementation in the first aspect In the current mode, the fragment carries a fragment identifier, and is used to enable the receiving end to reassemble the fragment according to the fragment identifier.
  • an embodiment of the present invention provides a packet sending apparatus for multi-link aggregation, including:
  • a receiving unit configured to receive a packet, where the packet carries priority information indicating a priority of the packet
  • a selecting unit configured to select, according to a correspondence between the priority of the packet and a member link in the link aggregation group, a member link corresponding to the priority of the packet, where the link aggregation group include at least a first member link and a second member link, the reliability of the first member link being higher than the reliability of the second member link, and the priority of the packet and the member link
  • the first priority corresponds to the first member link
  • the second priority corresponds to at least one of the second member link and the first member link, where the first priority ratio
  • the second priority has a higher priority
  • a sending unit configured to send the message on the selected member link.
  • the method further includes:
  • a distribution unit configured to send the packet to a member fragment unit corresponding to a priority of the packet according to a correspondence between a priority of the packet and a member fragment unit in the fragment unit group ;
  • a member sharding unit configured to separately slice the message to obtain multiple shards
  • the selecting unit is specifically configured to select a member link corresponding to the member fragment unit according to the correspondence between the member fragment unit and the member link;
  • the sending unit is specifically configured to send the multiple fragments of the packet on the selected member link.
  • the method further includes:
  • a fragmentation unit configured to slice the packet according to a priority of the packet to obtain a fragment, where the fragment carries the priority information
  • the selecting unit is specifically configured to select, according to the correspondence between the priority of the packet and the member link, a member link corresponding to the multiple fragments;
  • the sending unit is specifically configured to send the multiple fragments of the packet on the selected member link.
  • the method further includes:
  • the configuration module is configured to configure a correspondence between the member fragment unit and the member link according to the priority of the packet corresponding to the member fragmentation unit and the reliability of the member link in the link aggregation group.
  • the group of fragment units includes at least a first member fragment unit and a second member fragment unit,
  • the first priority corresponds to the first member fragmentation unit
  • the second priority corresponds to the second member fragmentation unit, in the correspondence between the priority of the packet and the member fragmentation unit;
  • the first member fragment unit corresponds to the first member link
  • the second member fragment unit corresponds to the second member link and At least one of the first member links.
  • the sending unit is further configured to detect whether a traffic shaper of the member link is allowed to send the The fragment is sent on the member link if allowed, and if not allowed, the other member links corresponding to the priority are selected to send the plurality of fragments of the packet.
  • the fragment in conjunction with the first possible implementation of the second aspect, in a sixth possible implementation manner of the second aspect, the fragment carries a fragment identifier, and is configured to enable the receiving end to perform the foregoing according to the fragment identifier Fragmentation for reorganization.
  • the embodiment of the present invention provides a packet sending device for multi-link aggregation, including:
  • a communication interface a processor and a memory
  • the communication interface, the processor and the memory being in communication via a bus
  • the memory storing execution instructions
  • the processor invoking execution instructions in the memory for performing the following operations:
  • a member link corresponding to the priority of the packet where the link aggregation group includes at least a first member.
  • the reliability of the first member link is higher than the reliability of the second member link, and the correspondence between the priority of the packet and the member link is One priority corresponds to the first member link, and the second priority corresponds to at least one of the second member link and the first member link, wherein the first priority is greater than the second priority
  • the priority of the level is high;
  • the packet is received, and the packet carries the priority information indicating the priority of the packet; and the correspondence between the priority of the packet and the member link in the link aggregation group is selected.
  • a member link corresponding to the priority of the packet where the link aggregation group includes at least a first member link and a second member link, and the first member link is more reliable than the second member The reliability of the link is high.
  • the first priority corresponds to the first member link
  • the second priority corresponds to the second member link and At least one of the first member links, wherein the first priority is higher than the second priority; and the message is sent on the selected member link.
  • the priority of the packet is selected to be selected for the member link to be sent. Therefore, the high-priority service flow can be sent on the high-reliability link, which can effectively ensure the transmission reliability of the high-priority packet and improve the reliability. The efficiency and reliability of message transmission.
  • FIG. 1 is a schematic diagram of a microwave link scene according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of another microwave link scenario according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for sending a multi-link aggregation message according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a fragment structure according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for receiving a message of multi-link aggregation according to an embodiment of the present invention.
  • FIG. 6 is a structural diagram of a message sending apparatus for multi-link aggregation according to an embodiment of the present invention.
  • FIG. 7 is a structural diagram of another multi-link aggregation message sending apparatus according to an embodiment of the present invention.
  • FIG. 8 is a structural diagram of a message receiving apparatus for multi-link aggregation according to an embodiment of the present invention.
  • FIG. 9 is a structural diagram of another multi-link aggregation message sending apparatus according to an embodiment of the present invention.
  • Optical fiber transmission is very mature both at the technical level and at the network application level.
  • wireless transmission is required in many places.
  • microwave transmission is usually adopted.
  • microwave transmission has a wider range of applications.
  • the frequency bands used in conventional frequency band microwave equipment are 1.4 GHz to 2.7 GHz, 3 GHz to 11 GHz, and 23 GHz to 55 GHz.
  • microwave devices that use E-Band, V-Band and other frequency bands.
  • the structure of different microwave devices may be different, except for the frequency bands used. For example, it may be an all-outdoor microwave device, a split microwave device, or an all-indoor microwave device.
  • the intermediate frequency processing is performed indoors.
  • the intermediate frequency processing is also performed outdoors.
  • a microwave link can be formed between the two microwave devices.
  • the two microwave devices include two indoor microwave units.
  • the first microwave device includes an indoor unit (IDU) 101a and an outdoor unit (Outdoor Unit).
  • ODU indoor unit
  • the second microwave device includes IDU 101b, ODU 102b, and antenna 103b.
  • the baseband signal is processed by the intermediate frequency of the IDU, and the radio frequency processing of the ODU is sent to the opposite device through the antenna.
  • the two microwave links can form a link aggregation group.
  • the two sets of split microwave devices include an IDU 101a, an ODU 102a1, an antenna 103a1, an antenna 103b1, and an ODU 102b1.
  • the IDU 101b constitutes a first member link;
  • the second set of split microwave devices includes an IDU 101a, an ODU 102a2, an antenna 103a2, an antenna 103b2, an ODU 102b2, and an IDU 101b, which constitute a second member link, and the two sets of microwave devices use the same IDU 101a.
  • the service traffic is assigned to which member link to transmit.
  • Two sets of microwave devices form two member links, and the two member links can form a link aggregation group.
  • the member link may be a fiber link, a copper link, or the like.
  • a route aggregation group is a large-bandwidth logical link that transmits traffic on each member link according to user configuration.
  • the devices that form member links are different. They may be all-outdoor microwave devices, split-type microwave devices, and all-indoor microwave devices.
  • the frequencies used may be different, which may be conventional frequency bands, E-Band, V-Band, etc. Therefore, the reliability between member links may vary greatly. Reliability can be expressed using an available level, which is the probability value that the microwave link can operate normally for a certain period of time or the expected value of the probability value. As shown in Table 1, it is an exemplary usable level.
  • FIG. 3 is a flowchart of an embodiment of a method for sending a message of a multi-link aggregation according to the present invention. As shown in Figure 3, include:
  • Step 301 Receive a packet, where the packet carries priority information indicating a packet priority.
  • the received message can be an Ether message.
  • the present invention is not limited thereto.
  • it may be a packet of another encapsulation format, for example, an 802.3 packet, a High-Level Data Link Control (HDLC) packet, and a point-to-point protocol. To-Point Protocol (PPP) message, etc.
  • HDLC High-Level Data Link Control
  • PPP To-Point Protocol
  • Step 302 Select, according to the correspondence between the priority of the packet and the member link in the link aggregation group, a member link corresponding to the priority of the packet, where the link aggregation group includes at least The reliability of the first member link is higher than the reliability of the second member link, and the correspondence between the priority of the packet and the member link is the first member link and the second member link.
  • the first priority corresponds to the first member link
  • the second priority corresponds to at least one of the second member link and the first member link, wherein the first priority is greater than the first priority
  • the second priority has a high priority.
  • receiving a message and selecting a member link corresponding to the priority of the message to send the message is performed in the baseband unit portion of the IDU 101a.
  • the first member link is selected, and the packet is sent to the receiving antenna of the receiving end through the transmitting antenna, and then sent to the baseband unit of the IDU1101b to obtain the packet. .
  • the number of possible priorities of the packet is at least two, which indicates the priority of the packet.
  • the priority of the packet can be the first priority or the second priority.
  • the priority information of the packet can be obtained by parsing the packet header.
  • High-priority packets are transmitted over high-reliability member links.
  • Low-priority packets can be transmitted over low-reliability member links.
  • a packet of a class can also be transmitted through a member link of a high-reliability member.
  • the member-link can be transmitted based on the priority of the packet and the member link. It is assumed that the possible priority of the packet is the first priority or the second priority, and the first priority is superior to the second priority. The priority is high.
  • the first priority packet is a packet that requires the reliability of the member link.
  • the second priority is the packet that does not require the reliability of the member link.
  • the mapping between the priority of the packet and the member link needs to be configured in advance.
  • the link aggregation group includes the first member link and the second member link.
  • the reliability of the first member link is higher than that of the second member link, and the reliability of the first member link can meet the first priority.
  • the requirement of the first-level packet is that the reliability of the second member link cannot meet the requirements of the first-priority packet.
  • the correspondence between the priority of the packet and the member link may be configured as follows: the first priority corresponds to the first member link, and the second priority corresponds to at least one of the second member link and the first member link.
  • the priority of the packet may also include other priorities, for example, the third priority, the third priority is higher than the priority of the second priority, and the third priority is a report that requires reliability of the member link.
  • the reliability of the first member link can meet the requirements of the third priority packet, and the reliability of the second member link cannot meet the requirement of the third priority packet.
  • the correspondence between the priority of the packet and the member link may be configured as follows: the first priority and the third priority correspond to the first member link, and the second priority corresponds to the second member link and the first member link. at least one.
  • the link aggregation group may also include other member links, for example, a third member link.
  • the reliability of the third member link is higher than that of the second member link, and the reliability of the third member link can be satisfied.
  • the correspondence between the priority of the packet and the member link can be configured as follows: the first priority corresponds to the first member link and the third member link, and the second priority corresponds to the first member link, the second member link, and At least one of the third member links.
  • Step 303 Send the packet on the selected member link.
  • the member links can be configured.
  • Load balancing that is, the load of each member link is basically the same, and the member links are fully utilized.
  • the first priority corresponds to the first member link and the third member link, and one message has the first After a slice is sliced, part of the packet is transmitted through the first member link, and part of the slice is transmitted through the second member link, so that load balancing can be implemented.
  • Step A Send the packet to a member fragment unit corresponding to the priority of the packet according to the correspondence between the priority of the packet and the member fragment unit in the fragment unit group.
  • the number of possible priorities of the packet is at least two, which indicates the priority of the packet.
  • the priority of the packet can be the first priority or the second priority.
  • the priority information of the packet can be obtained by parsing the packet header.
  • the fragmentation unit group has at least two member fragmentation units, and the member fragmentation unit is configured to slice the packet to obtain a fragmentation, and the fragmentation identifiers of the fragments obtained by different member fragmentation units are different, and the plurality of member fragmentation units are different. Form a group of slice units. After the priority information of the packet is obtained, according to the correspondence between the priority of the packet and the member fragment unit, it can be determined which member fragment unit or which member fragment unit corresponds to the packet.
  • the number of priority of the packet and the number of member fragment units may be the same or different.
  • the priority of a packet can correspond to one member fragmentation unit or multiple member fragmentation units.
  • the priority of a packet corresponds to one member fragmentation unit.
  • a member fragmentation unit can correspond to the priority of a packet or the priority of multiple packets.
  • the correspondence between the priority of the packet and the member fragment unit may be pre-configured.
  • the fragment unit group includes a first member fragment unit and a second member fragment unit, and the priority of the packet is The correspondence between the member units is: the first priority corresponds to the first member fragment unit, the second priority corresponds to the second member fragment unit, and the first priority is higher than the second priority, and the first priority is A packet is a packet that requires the reliability of the member link.
  • the second packet is a packet that does not require the reliability of the member link.
  • the priority may also include the third priority
  • the third priority is a packet that requires the reliability of the member link
  • the third priority may also correspond to the first member fragmentation unit, that is, the first member fragmentation.
  • the unit corresponds to the first priority and the third priority at the same time.
  • the fragment unit group may further include other member fragment units, for example, including the third member points.
  • the slice unit, the first priority may also correspond to the third member slice unit, that is, the first priority corresponds to the first member slice unit and the third member slice unit.
  • the priority of the packet is obtained, and then the member fragment unit corresponding to the priority of the packet is determined according to the correspondence between the priority of the packet and the member fragment unit, if the packet is associated with the packet. If the number of the member-slice units corresponding to the priority of the packet is one, the packet is sent to the corresponding member fragment unit. If the number of member-slice units corresponding to the priority of the packet is multiple, Then, a member slice unit is randomly selected or selected according to a predetermined rule, and the message is sent to the selected member slice unit. Certainly, in some scenarios, if the number of member fragment units corresponding to the priority of the packet is multiple, the packet may be simultaneously sent to the corresponding member fragment unit, that is, the broadcast mechanism is used to send the packet. Message.
  • Step B The packet in the member fragmentation unit is sliced to obtain a plurality of fragments.
  • the packet is sliced to obtain a fragment load, and the fragment identifier is added to obtain a fragment, and the fragment identifier includes information of the member fragment unit to be used, so that the receiving end identifies the fragment according to the fragment identifier.
  • the member is in the slice unit and reorganizes the slice. Normally, the entire message is sliced.
  • the fragment identifier may include one or more of a protocol identifier, a stream identifier, a sequence number start identifier, and an end identifier, where
  • protocol identifier which is used to identify that the fragment is a sliced packet
  • a flow identifier which is used to identify a member shard unit where the shard is located
  • the start identifier and end identifier are used to identify the start fragment and end fragment of the packet.
  • the packet is sliced to obtain a fragment load, for example, the length may be 128 to 512 bytes, or may be configured according to requirements. Then add the fragment ID.
  • the fragment ID is 8 bytes long and includes:
  • the protocol identifier is used to identify the fragmented packet, that is, the Tag Protocol Identifier (TPID).
  • TPID Tag Protocol Identifier
  • the default value is 0x88A8, which can be based on the user's Demand configuration;
  • a stream identifier which is used to distinguish a member fragment unit by using the bit segment, and the receiver end reorganizes according to the identifier
  • the length of the slice used to indicate the length of the slice, in bytes, which can be configured by itself;
  • serial number which is used to identify the location of the fragment, that is, the number of the fragment
  • the start identifier and the end identifier are used to identify the start fragment and the end fragment of the packet, that is, Start Of Fragment (SOF) and End Of Fragment (EOF), and "1" indicates that the start point is Slice or end fragmentation, otherwise indicated by "0".
  • the step of selecting, according to the correspondence between the priority of the packet and the member link in the link aggregation group, the member link corresponding to the priority of the packet may include: according to the member fragmentation unit A member link corresponding to the member fragment unit is selected according to the correspondence of the member links.
  • the link aggregation group includes at least two member links, and each link may be a regular band microwave link, an E-Band microwave link, or a V-Band microwave link.
  • the number of member fragments and the number of member links can be the same or different.
  • a member fragment unit can correspond to one member link or multiple member links.
  • One member link can correspond to one member.
  • a slice unit may also correspond to a plurality of member slice units.
  • the corresponding relationship between the member fragmentation unit and the member link may be pre-configured, and may be based on the priority of the packet corresponding to the member fragmentation unit and the member link in the link aggregation group.
  • the correspondence between the member fragment unit and the member link is pre-configured.
  • the link aggregation group includes the first member link and the second member link, and the reliability of the first member link is higher than that of the second member link, and the reliability of the first member link can satisfy the first
  • the requirement of the priority packet, the reliability of the second member link cannot meet the requirements of the first priority packet, the first member fragment unit corresponds to the first priority, and the second member fragment unit corresponds to the second priority.
  • the first priority is higher than the priority of the second priority.
  • the first priority packet is a packet that requires the reliability of the member link
  • the second priority is a packet that does not require the reliability of the member link.
  • Text The corresponding relationship between the member fragment unit and the member link may be pre-configured as follows: the first member fragment unit corresponds to the first member link, and the second member fragment unit corresponds to the second member link and the first member link. At least one of them. This ensures that high-priority packets are sent over a highly reliable member link.
  • the third member fragment unit corresponds to the third priority
  • the third priority is higher than the second priority
  • the third priority is reliable for the member link.
  • the reliability of the first member link can meet the requirements of the third priority packet.
  • the reliability of the second member link cannot meet the requirements of the third priority packet.
  • the correspondence between the member fragment unit and the member link may be pre-configured as follows: the first member fragment unit and the third member fragment unit correspond to the first member link, and the second member fragment unit corresponds to the second member link and the At least one of a member link.
  • the link aggregation group may also include other member links, for example, including a third member link.
  • the reliability of the third member link is higher than that of the second member link, and the reliability of the third member link can be Meet the requirements of the first priority message.
  • the corresponding relationship between the member fragment unit and the member link may be pre-configured as follows: the first member fragment unit corresponds to the first member link and the third member link, and the second member fragment unit corresponds to the first member link and the second At least one of a member link and a third member link.
  • a member of the fragmentation unit corresponds to a member link
  • the member fragmentation unit corresponds to a member link
  • the corresponding member link is used to send the fragment, if the fragment is to be sent.
  • the member fragment unit corresponds to multiple member links, select one member link to send. Sending fragments, of course, can also send fragments simultaneously on multiple member links.
  • a member fragment unit corresponds to a high-priority packet, and the member fragment unit corresponds to a high-reliability member link, that is, a high-priority packet is transmitted, and if the member fragment unit further corresponds to a low-priority packet,
  • the basic idea is to ensure that the high-priority packets are transmitted on the high-reliability member links.
  • the traffic shaping device can be used to perform traffic shaping on the member link according to the bandwidth of the member link, and the shaped traffic is sent.
  • the purpose of traffic shaping is to limit the traffic that flows to member links and to send traffic out at a uniform rate to prevent congestion. Therefore, before the member link corresponding to the member fragment unit is selected to send the fragment in the member fragment unit, the traffic shaper of the member link can be detected whether the fragment is allowed to be sent, and if the member is allowed, Shards are sent on the link. If not allowed, other corresponding member links can be selected to send fragments.
  • member fragment unit corresponds to multiple member links
  • select one member link to send fragments There are several methods for selecting member links:
  • SP Strict Priority
  • the traffic is sent in turn on each link.
  • the actual effect is as follows: Assume that the member fragment unit corresponds to two member links, MAC1 and MAC2, MAC1 bandwidth is 100M, MAC2 bandwidth is 200M, and the traffic status is as follows: The fragmentation unit has 100M traffic to be transmitted, then MAC1 will transmit 50M data and MAC2 will transmit 50M.
  • c>Weighted Round Robin (WRR) algorithm can achieve the effect of distributing traffic according to the link bandwidth ratio when there is no congestion.
  • the actual effect is shown in the following example: Assume member fragmentation The unit corresponds to two member links, MAC1 and MAC2, MAC1 bandwidth is 100M, MAC2 bandwidth is 200M, and the traffic status is as follows: member fragment unit has 90M traffic to be sent, then MAC1 will transmit 30M data, and MAC2 will transmit 60M.
  • the member-slice unit has a higher priority with the packet priority. Some members of the fragment unit have higher priority, and some members of the fragment unit have lower priority. If there are multiple member fragmentation units that need to send fragments, you can perform differentiating scheduling. For example, you can preferentially schedule the fragmentation of the high-priority packets, and then schedule the fragmentation of the lower-priority packets.
  • the member sharding unit assigns a priority. If the priority of the packet corresponding to the member fragmentation unit is high, the priority of the member fragmentation unit is high, and the fragmentation of the member fragmentation unit is preferentially scheduled. If the priority of multiple packets corresponding to the member shards is set, the priority of the member shards can be configured according to the priorities of multiple packets.
  • the sending the message on the selected member link in the step S303 may include: sending the multiple fragments of the packet on the selected member link.
  • step A the packet is sliced to obtain multiple fragments, and the multiple fragments carry the priority information.
  • the packet is sliced to obtain a fragment load, and the fragment identifier is added to obtain a fragment, and the fragment identifier may include the priority information.
  • the step of selecting, according to the correspondence between the priority of the packet and the member link in the link aggregation group, the member link corresponding to the priority of the packet may include: according to the priority of the packet A member link corresponding to the plurality of fragments is selected corresponding to the member link.
  • This step can refer to the previous embodiment.
  • the sending the message on the selected member link in the step S303 may include: sending the multiple fragments of the packet on the selected member link.
  • the packet is received, and the packet carries the priority information indicating the priority of the packet; and the report is selected according to the correspondence between the priority of the packet and the member link in the link aggregation group.
  • a member link corresponding to the priority of the file wherein the link aggregation group includes at least a first member link and a second member link, and the first member link is more reliable than the second member link
  • the reliability of the second member is corresponding to the first member link
  • the second priority corresponds to the second member link and the corresponding relationship between the priority of the packet and the member link.
  • the priority of the packet can be differentiated into different slices, and the member link for sending is selected according to the correspondence between the member fragment unit and the member link, so that the high priority service flow can be prioritized in high reliability. Sending on the link, when the bandwidth of the member link is reduced, the transmission of the high priority service flow can be preferentially scheduled.
  • FIG. 5 is a flowchart of an embodiment of a method for receiving a message of a multi-link aggregation according to the present invention. As shown in Figure 5, it includes:
  • Step 501 Obtain a packet fragment, and determine, according to the fragment identifier of the packet fragment, a member reorganization unit to which the packet fragment belongs, and send the packet fragment to the member reorganization unit.
  • the member reorganization unit is a member of the reorganization unit group.
  • Step 502 Perform packet reassembly in the member reassembly unit to obtain a packet.
  • the member reassembly unit to which the packet fragment belongs is determined according to the fragment identifier of the packet fragment, and the packet fragment is sent to the member reorganization unit, and the packet in the member reorganization unit is reported.
  • the shards are reassembled to obtain packets, and the shards of different shards can be reorganized separately, which can effectively support the sender to perform different splicing according to different priorities.
  • FIG. 6 is a schematic structural diagram of an embodiment of a message sending apparatus for multi-link aggregation according to the present invention.
  • the apparatus for transmitting a message of a multi-link aggregation provided by this embodiment includes: a receiving unit 601, a selecting unit 602, and a sending unit 603.
  • the link aggregation group includes m member links 604, where m is an integer greater than 2, where
  • the receiving unit 601 is configured to receive a packet, where the packet carries priority information indicating a priority of the packet.
  • the selecting unit 602 is configured to: according to the priority of the packet, a member link in the link aggregation group Corresponding relationship, selecting a member link corresponding to the priority of the packet, wherein the link aggregation group includes at least a first member link and a second member link, and the first member link is reliable The reliability of the second member link is higher than that of the second member link.
  • the first priority corresponds to the first member link and the second priority corresponds to the correspondence between the priority of the packet and the member link. At least one of the second member link and the first member link, wherein the first priority is higher than the second priority.
  • the sending unit 603 is configured to send the message on the selected member link.
  • n is an integer greater than 2, wherein
  • the distribution unit 701 is configured to send, according to the correspondence between the priority of the packet and the member fragment unit in the fragment unit group, the packet to a member corresponding to the priority of the packet.
  • the slice unit In the slice unit;
  • a member sharding unit 702 configured to slice the packet to obtain multiple shards
  • the selecting unit 602 is configured to select a member link corresponding to the member fragment unit according to the correspondence between the member fragment unit and the member link.
  • the configuration module is configured to configure a correspondence between the member fragment unit and the member link according to the priority of the packet corresponding to the member fragmentation unit and the reliability of the member link in the link aggregation group.
  • the fragment unit group includes at least a first member fragment unit and a second member fragment unit, and the correspondence between the priority of the packet and the member fragment unit is: the first priority corresponds to the first member. a slice unit, the second priority corresponds to the second member fragment unit; the link aggregation group includes a first member link and a second member link, and the reliability of the first member link is more reliable than the second member link
  • the relationship between the member fragment unit and the member link is: the first member fragment unit corresponds to the first member link, and the second member fragment unit corresponds to the second member link and the first member link. At least one of them.
  • the sending unit 603 is further configured to: detect whether the traffic shaper of the member link is allowed to send the fragment, and if yes, send the fragment on the member link, if not, select and
  • the other member links corresponding to the priority group send multiple fragments of the packet.
  • the traffic shaper may be structurally part of the first sub-selection unit, and each member link corresponds to a traffic shaper.
  • the fragment may carry a fragment identifier, and is configured to enable the receiving end to reassemble the fragment according to the fragment identifier.
  • the fragment unit may be specifically included.
  • a fragmentation unit configured to slice the packet according to a priority of the packet to obtain a fragment, where the fragment carries the priority information.
  • the selecting unit 602 is configured to select a member link corresponding to the multiple fragments according to the correspondence between the priority of the packet and the member link.
  • the sending unit 603 is configured to send the multiple fragments of the packet on the selected member link.
  • Each of the above units is a logic function module, which can be implemented by software or hardware.
  • the software refers to a micro code using a network processor (NP), and the hardware can be implemented by using an FPGA or a switch chip.
  • NP network processor
  • Corresponding software implementation can be a program or function call of the software, corresponding hardware, can be a circuit module.
  • FIG. 8 is a schematic structural diagram of an embodiment of a message receiving apparatus for multi-link aggregation according to the present invention.
  • the packet receiving apparatus of the multi-link aggregation provided in this embodiment may be an indoor unit in the embodiment of the present invention or a device located in an indoor unit, and may be used to execute, for example, the method shown in FIG. .
  • the message receiving apparatus includes: a distribution unit 801, m member recombination units 802, and m is an integer greater than 2.
  • the distribution unit 801 is configured to obtain a packet fragment, and determine, according to the fragment identifier of the packet fragment, a member reorganization unit to which the packet fragment belongs, and send the packet fragment to the member.
  • the member reorganization unit is a member of the reorganization unit group;
  • the member reorganization unit 802 is configured to reassemble the message fragments to obtain a message.
  • Each of the above units is a logic function module, which can be implemented by software or hardware.
  • the software refers to a micro code using a network processor (NP), and the hardware can be implemented by using an FPGA or a switch chip.
  • NP network processor
  • Corresponding software implementation can be a program or function call of the software, corresponding hardware, can be a circuit module.
  • FIG. 9 is a schematic structural diagram of an embodiment of a packet sending apparatus for multi-link aggregation according to the present invention.
  • the packet sending device of the multi-link aggregation provided in this embodiment includes:
  • a member link corresponding to the priority of the packet where the link aggregation group includes at least a first member.
  • the reliability of the first member link is higher than the reliability of the second member link, and the correspondence between the priority of the packet and the member link is One priority corresponds to the first member link, and the second priority corresponds to at least one of the second member link and the first member link, wherein the first priority is greater than the second priority
  • the priority of the level is high;
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division, and may be implemented in actual implementation.
  • multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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Abstract

本发明实施例提供了一种报文发送方法，包括：接收报文，所述报文携带表示报文优先级的优先级信息；根据报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路，所述链路聚合组包括至少第一成员链路和第二成员链路，第一成员链路的可靠性比第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应第一成员链路，第二优先级对应第二成员链路和第一成员链路中的至少一个，第一优先级比第二优先级的优先级高；在选择的成员链路上发送所述报文。

Description

一种多链路聚合的报文发送方法及装置 技术领域
本发明实施例涉及通信技术领域，尤其涉及一种多链路聚合的报文发送方法及装置。
背景技术
随着网络带宽需求的迅速增长，当单链路带宽不足以满足需求时，通常将两个设备间的多条物理链路捆绑成一个逻辑链路，形成链路聚合组(link aggregation group，简称LAG)，业务流量由链路聚合组中的多条成员链路共同承担。现有技术中采用循环调度(Round Robin，简称RR)算法将业务报文依次调度到各个成员链路上进行发送，但是当链路聚合组的某个成员链路的性能较差时，将会降低报文传输的效率及可靠性。
发明内容
本发明实施例提供一种多链路聚合的报文发送方法及装置，以克服现有技术中链路聚合组的某个成员链路的性能较差时降低报文传输的效率及可靠性的问题。
第一方面，本发明实施例提供一种报文发送方法，包括：
接收报文，所述报文携带表示报文优先级的优先级信息；
根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高；和
在所述选择的成员链路上发送所述报文。
在第一种可能的实现方式中，，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路之前，还包括：
根据所述报文的优先级与分片单元组中的成员分片单元的对应关系，将所述报文发送到与所述报文的优先级对应的成员分片单元中；和
将所述成员分片单元中的所述报文进行切片得到多个分片；
其中，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路包括：根据所述成员分片单元与成员链路的对应关系，选择与所述成员分片单元对应的成员链路；
在所述选择的成员链路上发送所述报文包括：在所述选择的成员链路上发送所述报文的所述多个分片。
在第一方面的第二种可能的实现方式中，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路之前，还包括：
将所述报文进行切片得到多个分片，所述多个分片携带所述优先级信息；
其中，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路包括：根据所述报文的优先级与成员链路的对应关系，选择与所述多个分片对应的成员链路；
在所述选择的成员链路上发送所述报文包括：在所述选择的成员链路上发送所述报文的所述多个分片。
结合第一方面的第一种可能的实现方式，在第一方面的第三种可能的实现方式中，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路之前，还包括：
根据所述成员分片单元对应的报文的优先级和所述链路聚合组中的成员链路的可靠性，配置所述成员分片单元与成员链路的对应关系。
结合第一方面的第一种可能的实现方式，在第一方面的第四种可能的实现方式中，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路之前，还包括：
根据所述成员分片单元对应的报文的优先级确定所述成员分片单元的优先级；
根据所述成员分片单元的优先级和所述链路聚合组中的成员链路的可靠性，配置所述成员分片单元与成员链路的对应关系。
结合第一方面的第一种可能的实现方式，在第一方面的第五种可能的实现方式中，所述分片单元组包括至少第一成员分片单元和第二成员分片单元，在所述报文的优先级与成员分片单元的对应关系中，第一优先级对应第一成员分片单元，第二优先级对应第二成员分片单元；
其中，在所述成员分片单元与成员链路的对应关系中，所述第一成员分片单元对应所述第一成员链路，所述第二成员分片单元对应所述第二成员链路和所述第一成员链路中的至少一个。
结合第一方面的第一种可能的实现方式，在第一方面的第六种可能的实现方式中，在所述选择的成员链路发送所述报文的所述多个分片，包括：
检测所述成员链路的流量整形器是否允许发送所述分片，若允许则在所述成员链路上发送所述分片，若不允许，则选择与所述优先级对应的其它成员链路发送所述报文的所述多个分片。
结合第一方面的第一种可能的实现方式，在第一方面的第七种可能的实现方式中，判断所述报文是否需要切片，若不需要切片，则将所述报文调度到所述选择的成员链路。。
结合第一方面的第七种可能的实现方式，所述判断所述报文是否需要切片之前，还包括：
为每个成员链路预留带宽，预留的所述带宽用于发送非切片报文。
结合第一方面的第一种可能的实现方式，在第一方面的第九种可能的实 现方式中，所述分片携带分片标识，用于使接收端根据所述分片标识对所述分片进行重组。
第二方面，本发明实施例提供一种多链路聚合的报文发送装置，包括：
接收单元，用于接收报文，所述报文携带表示报文优先级的优先级信息；
选择单元，用于根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高；
发送单元，用于在所述选择的成员链路上发送所述报文。
在第二方面的第一种可能的实现方式中，还包括：
分发单元，用于根据所述报文的优先级与分片单元组中的成员分片单元的对应关系，将所述报文发送到与所述报文的优先级对应的成员分片单元中；和
成员分片单元，用于分别将所述报文进行切片得到多个分片；
所述选择单元具体用于根据所述成员分片单元与成员链路的对应关系，选择与所述成员分片单元对应的成员链路；
所述发送单元具体用于在所述选择的成员链路上发送所述报文的所述多个分片。
在第二方面的第二种可能的实现方式中，还包括：
分片单元，用于根据所述报文的优先级将所述报文进行切片得到分片，所述分片携带所述优先级信息；
所述选择单元具体用于根据所述报文的优先级与成员链路的对应关系，选择与所述多个分片对应的成员链路；
所述发送单元具体用于在所述选择的成员链路上发送所述报文的所述多个分片。
结合第二方面的第一种可能的实现方式，在第二方面的第三种可能的实现方式中，还包括：
配置模块，用于根据所述成员分片单元对应的报文的优先级和所述链路聚合组中的成员链路的可靠性，配置所述成员分片单元与成员链路的对应关系。
结合第二方面的第一种可能的实现方式，在第二方面的第四种可能的实现方式中，所述分片单元组包括至少第一成员分片单元和第二成员分片单元，在所述报文的优先级与成员分片单元的对应关系中，第一优先级对应第一成员分片单元，第二优先级对应第二成员分片单元；
在所述成员分片单元与成员链路的对应关系中，所述第一成员分片单元对应所述第一成员链路，所述第二成员分片单元对应所述第二成员链路和所述第一成员链路中的至少一个。
结合第二方面的第一种可能的实现方式，在第二方面的第五种可能的实现方式中，所述发送单元，还用于检测所述成员链路的流量整形器是否允许发送所述分片，若允许则在所述成员链路上发送所述分片，若不允许，则选择与所述优先级对应的其它成员链路发送所述报文的所述多个分片。
结合第二方面的第一种可能的实现方式，在第二方面的第六种可能的实现方式中，所述分片携带分片标识，用于使接收端根据所述分片标识对所述分片进行重组。
第三方面，本发明实施例提供一种多链路聚合的报文发送设备，包括：
通信接口、处理器和存储器，所述通信接口、处理器和所述存储器通过总线通信，存储器存储执行指令，所述处理器调用所述存储器中的执行指令，用于执行以下操作：
接收报文，所述报文携带表示报文优先级的优先级信息；
根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高；和
在所述选择的成员链路上发送所述报文。
本发明实施例中，接收报文，所述报文携带表示报文优先级的优先级信息；根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高；和在所述选择的成员链路上发送所述报文。本实施例能够区分报文的优先级选择用于发送的成员链路，因此高优先级业务流可以在高可靠性链路上发送，可以有效的保证高优先级报文的传输可靠性，提高了报文传输的效率及可靠性。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对本发明实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明实施例的一种微波链路场景图。
图2是本发明实施例的另一种微波链路场景图。
图3是本发明实施例的一种多链路聚合的报文发送方法流程图。
图4是本发明实施例的一种分片结构示意图。
图5是本发明实施例的一种多链路聚合的报文接收方法流程图。
图6是本发明实施例的一种多链路聚合的报文发送装置结构图。
图7是本发明实施例的另一种多链路聚合的报文发送装置结构图。
图8是本发明实施例的一种多链路聚合的报文接收装置结构图。
图9是本发明实施例的另一种多链路聚合的报文发送装置结构图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都应属于本发明保护的范围。
光纤传输无论在技术层面还是在网络应用层面都已经非常成熟，但由于地形地貌等限制，在许多地方需要使用无线方式来传输，在带宽要求较大的情况下，通常采用微波传输方式。目前，在移动蜂窝系统的基站回程传输、传输网城域网组网、广电的数字中继传输网、专网以及大企业接入等市场的应用中，微波传输有较为广泛的应用。
常规频段微波设备使用的频段为1.4GHz～2.7GHz，3GHz～11GHz，以及23GHz～55GHz等。现在，还出现为使用E-Band，V-Band等频段的微波设备。除了使用的频段可能不同外，不同的微波设备的结构也可能不同，例如可以为全室外型微波设备，分体式微波设备，全室内型微波设备等。对于分体式微波设备，中频处理在室内进行，对于全室外型微波设备，除了射频处理，中频处理也在室外进行。
两个微波设备之间可以组成一条微波链路，如图1所示，包括两个分体式微波设备，第一微波设备包括室内单元(Indoor Unit，简称IDU)101a，室外单元(Outdoor Unit，简称ODU)102a和天线103a；第二微波设备包括 IDU101b，ODU102b以及天线103b。基带信号经过IDU的中频处理，ODU的射频处理后通过天线发送到对端设备。
两条微波链路可以组成一个链路聚合组，如图2所示，包括两套分体式微波设备，第一套分体式微波设备包括IDU 101a，ODU 102a1，天线103a1，天线103b1，ODU 102b1，IDU101b，组成第一成员链路；第二套分体式微波设备包括IDU 101a，ODU 102a2，天线103a2，天线103b2，ODU 102b2，IDU101b，组成第二成员链路，两套微波设备使用了同一个IDU101a，在IDU101a，业务流量被分配通过哪条成员链路进行传输。两套微波设备形成两条成员链路，该两条成员链路可以组成一个链路聚合组。在一些实施例中，还可能三条或更多条成员链路组成一个链路聚合组，成员链路除了是微波链路外，还可能是光纤链路，铜线链路等其它链路，链路聚合组是一个大带宽的逻辑链路，根据用户配置在各成员链路上传输流量。
组成成员链路的设备不同，可能是全室外型微波设备，分体式微波设备，全室内型微波设备，使用的频率也可能不同，可能是常规频段、E-Band，V-Band等。因此成员链路之间的可靠性可能相差较大。可靠性可以使用可用等级来表示，可用等级是微波链路在某段时间内能够正常运行的概率值或该概率值的期望值。如表1所示，为一种示例性的可用等级。
Figure PCTCN2015075337-appb-000001
表1
图3为本发明多链路聚合的报文发送方法实施例的流程图。如图3所示， 包括：
步骤301、接收报文，所述报文携带表示报文优先级的优先级信息。
接收的报文的可以是以太报文。本发明对此不作限定，例如还可以是其它封装格式的报文，例如还可以是802.3报文，高级数据链路控制(High-Level Data Link Control，简称HDLC)报文，点对点协议(Point-to-Point Protocol，简称PPP)报文等。
步骤302、根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高。
以图2为例，通常情况下，接收报文和选择与报文的优先级对应的成员链路发送所述报文在IDU101a的基带单元部分执行。例如选择第一成员链路，报文经过第一成员链路发送端的中射频处理后通过发射天线发送到接收端的接收天线，然后经过接收端的中射频处理后送达IDU1101b的基带单元还原得到报文。
报文可能的优先级个数至少有两个，用来指示报文的优先程度，例如报文的优先级可以为第一优先级，也可以是第二优先级，当收到报文后，可以通过解析报文头得到报文的优先级信息。
高优先级的报文通过高可靠性的成员链路传送，低优先级的报文可以通过低可靠性的成员链路传送，在高可靠性的成员链路的带宽充足的情况下，低优先级的报文也可以通过高可靠性的成员链路传送，具体可以根据报文的优先级与成员链路的对应关系确定可以通过哪些成员链路进行传送。假设报文的可能优先级为第一优先级或第二优先级，第一优先级比第二优先级的优 先级高，第一优先级报文为对成员链路的可靠性有要求的报文，第二优先级为对成员链路的可靠性没有要求的报文。报文的优先级与成员链路的对应关系需要预先配置。例如链路聚合组包括第一成员链路和第二成员链路，第一成员链路的可靠性比第二成员链路的可靠性高，第一成员链路的可靠性能够满足第一优先级报文的要求，第二成员链路的可靠性不能满足第一优先级报文的要求。报文的优先级与成员链路的对应关系可以配置为：第一优先级对应第一成员链路，第二优先级对应第二成员链路和第一成员链路中的至少一个。
报文的优先级还可以包括其它优先级，例如还包括第三优先级，第三优先级比第二优先级的优先级高，第三优先级为对成员链路的可靠性有要求的报文，第一成员链路的可靠性能够满足第三优先级报文的要求，第二成员链路的可靠性不能满足第三优先级报文的要求。报文的优先级与成员链路的对应关系可以配置为：第一优先级和第三优先级对应第一成员链路，第二优先级对应第二成员链路和第一成员链路中的至少一个。
链路聚合组还可以包括其它成员链路，例如还包括第三成员链路，第三成员链路的可靠性比第二成员链路的可靠性高，第三成员链路的可靠性能够满足第一优先级报文的要求。报文的优先级与成员链路的对应关系可以配置为：第一优先级对应第一成员链路和第三成员链路，第二优先级对应第一成员链路、第二成员链路和第三成员链路中的至少一个。
步骤303、在所述选择的成员链路上发送所述报文。
根据所述报文的优先级与成员链路的对应关系，选择与所述报文的优先级对应的成员链路发送所述报文，可以直接在选择的成员链路中发送报文，优选的，也可以根据优先级对报文进行切片得到分片，然后针对报文的分片选择成员链路进行发送，如果报文的优先级对应多条成员链路，可以实现各成员链路的负载均衡，即实现各成员链路的负载基本一致，充分利用各成员链路。例如第一优先级对应第一成员链路和第三成员链路，一个报文具有第 一优先级，进行切片后，该报文的部分分片通过第一成员链路传输，部分片通过第二成员链路传输，可以实现负载均衡。
选择成员链路之前可以具体包括以下步骤：
步骤A、根据所述报文的优先级与分片单元组中的成员分片单元的对应关系，将所述报文发送到与所述报文的优先级对应的成员分片单元中。
报文可能的优先级个数至少有两个，用来指示报文的优先程度，例如报文的优先级可以为第一优先级，也可以是第二优先级，当收到报文后，可以通过解析报文头得到报文的优先级信息。
分片单元组至少有两个成员分片单元，成员分片单元用于对报文进行切片得到分片，不同的成员分片单元得到的分片的分片标识不同，多个成员分片单元组成一个分片单元组。在得到报文的优先级信息后，根据报文的优先级与成员分片单元的对应关系，可以确定报文对应哪个成员分片单元或对应哪些成员分片单元。
报文的优先级的个数和成员分片单元的个数可以相同，也可以不同。一个报文的优先级可以对应一个成员分片单元，也可以对应多个成员分片单元，通常情况下，一个报文的优先级对应一个成员分片单元即可。一个成员分片单元可以对应一个报文的优先级，也可以对应多个报文的优先级。
所述报文的优先级与成员分片单元的对应关系可以是预先配置好的，例如分片单元组包括第一成员分片单元和第二成员分片单元，所述报文的优先级与成员分片单元的对应关系为：第一优先级对应第一成员分片单元，第二优先级对应第二成员分片单元，第一优先级比第二优先级的优先级高，第一优先级报文为对成员链路的可靠性有要求的报文，第二优先级为对成员链路的可靠性没有要求的报文。当然，优先级也可以包括第三优先级，第三优先级为对成员链路的可靠性有要求的报文，第三优先级也可以对应第一成员分片单元，即第一成员分片单元同时对应第一优先级和第三优先级。
当然，分片单元组还可以包括其它成员分片单元，例如包括第三成员分 片单元，第一优先级还可以对应第三成员分片单元，即第一优先级同时对应第一成员分片单元和第三成员分片单元。
当收到一个报文后，得到该报文的优先级，然后根据报文的优先级与成员分片单元的对应关系确定与该报文的优先级对应的成员分片单元，如果与该报文的优先级对应的成员分片单元的个数为一个，则发送该报文到对应的成员分片单元，如果与该报文的优先级对应的成员分片单元的个数为多个，则随机选择或者按照预定规则选择一个成员分片单元，发送该报文到选择的成员分片单元。当然，在一些场景中，如果与该报文的优先级对应的成员分片单元的个数为多个，也可以同时发送该报文到对应的成员分片单元，即采用广播的机制发送该报文。
步骤B、将所述成员分片单元中的所述报文进行切片得到多个分片。
对报文进行切片得到分片负载，增加分片标识后得到分片，该分片标识包含所属的成员分片单元的信息，用于使接收端根据所述分片标识识别出所述分片所在的成员分片单元，并对所述分片进行重组。通常情况下，对整个报文进行切片。
作为一个实施例，分片标识，可以包括协议标识、流标识、序列号开始标识和结束标识中的一个或多个，其中，
协议标识，用于标识所述分片为切片后的报文分片；
流标识，用于标识所述分片所在的成员分片单元；
序列号，用于标识所述分片的位置；
开始标识和结束标识，用于标识报文的开始分片和结束分片。
具体来说，如图4以及下表2所示，对报文进行切片得到分片负载，例如长度可以为128～512字节，或者可根据需求自行配置。然后增加分片标识，分片标识长度为8字节，包括：
协议标识，用于标识所述分片为切片后的报文分片，即字段标签协议标识(Tag Protocol Identifier，简称TPID)，默认值为0x88A8，可根据用户的 需求配置；
流标识，用于通过此位段来区分成员分片单元，接收端对根据该标识进行重组；
分片长度，用于表示分片长度，单位为字节，可自行配置；
序列号，用于标识所述分片的位置，即分片的编号；
开始标识和结束标识，用于标识报文的开始分片和结束分片，即开始标识(Start Of Fragment，简称SOF)和结束标识(End Of Fragment，简称EOF)，“1”表示是开始分片或结束分片，反之用“0”表示。
Figure PCTCN2015075337-appb-000002
表2
步骤S302中根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路可以包括：根据所述成员分片单元与成员链路的对应关系，选择与所述成员分片单元对应的成员链路。
链路聚合组包括至少两个成员链路，每一条链路可以为常规频段微波链路，E-Band微波链路，或者V-Band微波链路。成员分片单元的个数和成员链路的数量可以相同，也可以不同，一个成员分片单元可以对应一个成员链路，也可以对应多个成员链路，一个成员链路可以对应一个成员分片单元，也可以对应多个成员分片单元。
所述成员分片单元与成员链路的对应关系可以是预先配置好的，可以根据成员分片单元对应的报文的优先级和所述链路聚合组中的成员链路的可 靠性，预先配置所述成员分片单元与成员链路的对应关系。例如，链路聚合组包括第一成员链路和第二成员链路，第一成员链路的可靠性比第二成员链路的可靠性高，第一成员链路的可靠性能够满足第一优先级报文的要求，第二成员链路的可靠性不能满足第一优先级报文的要求，第一成员分片单元对应第一优先级，第二成员分片单元对应第二优先级，第一优先级比第二优先级的优先级高，第一优先级报文为对成员链路的可靠性有要求的报文，第二优先级为对成员链路的可靠性没有要求的报文。所述成员分片单元与成员链路的对应关系可以预先配置为：第一成员分片单元对应第一成员链路，第二成员分片单元对应第二成员链路和第一成员链路中的至少一个。这样可以保证高优先级报文通过高可靠性的成员链路进行发送。
如果分片单元组包括第三成员分片单元，第三成员分片单元对应第三优先级，第三优先级比第二优先级的优先级高，第三优先级为对成员链路的可靠性有要求的报文，第一成员链路的可靠性能够满足第三优先级报文的要求，第二成员链路的可靠性不能满足第三优先级报文的要求。成员分片单元与成员链路的对应关系可以预先配置为：第一成员分片单元和第三成员分片单元对应第一成员链路，第二成员分片单元对应第二成员链路和第一成员链路中的至少一个。
当然，链路聚合组还可以包括其它成员链路，例如包括第三成员链路，第三成员链路的可靠性比第二成员链路的可靠性高，第三成员链路的可靠性能够满足第一优先级报文的要求。成员分片单元与成员链路的对应关系可以预先配置为：第一成员分片单元对应第一成员链路和第三成员链路，第二成员分片单元对应第一成员链路、第二成员链路和第三成员链路中的至少一个。
一个成员分片单元有待发送的分片，根据该成员分片单元与成员链路的对应关系，如果该成员分片单元对应一个成员链路，则使用该对应的成员链路发送分片，如果成员分片单元对应多个成员链路，则选择一个成员链路发 送分片，当然，也可以在多个成员链路同时发送分片。
一个成员分片单元对应高优先级报文，该成员分片单元对应高可靠性成员链路，即保证高优先级报文的传送，当然，如果该成员分片单元还对应低优先级报文，则综合判断各成员分片单元对应的优先级分配成员链路，基本思想是保证高优先级报文在高可靠性成员链路上传送。
成员链路的带宽是有限的，本发明实施例中，可以根据成员链路的带宽采用漏桶算法使用流量整形器对成员链路进行流量整形，并将整形后的流量发送。流量整形目的在于限制流到成员链路的流量，使流量以均匀的速度向外发送，防止拥塞的发生。因此在选择与成员分片单元对应的成员链路发送成员分片单元中的分片之前，可以检测所述成员链路的流量整形器是否允许发送所述分片，若允许则在所述成员链路上发送分片，如果不允许，则可以选择其它对应的成员链路发送分片。
如果成员分片单元对应多个个成员链路，则选择一个成员链路发送分片，下面给出几种选择成员链路的方法：
a>严格优先级(Strict Priority,SP)算法，按流量整形器号选择链路，如果流量整形器允许发送分片，就始终发送，直到该流量整形器的权值用光。实际效果见如下例子：假设成员分片单元对应两条成员链路，MAC1和MAC2，MAC1带宽100M，MAC2带宽200M，流量状态如下：成员分片单元有100M流量需要发送，则MAC1将传100M数据，MAC2传0M。成员分片单元有150M需要发送，则MAC1传100M，MAC2传50M。
b>RR算法，将流量在各个链路上轮流发送，实际效果见如下例子：假设成员分片单元对应两条成员链路，MAC1和MAC2，MAC1带宽100M，MAC2带宽200M，流量状态如下：成员分片单元有100M流量需要发送，则MAC1将传50M数据，MAC2传50M。
c>权重循环调度(Weighted Round Robin，简称WRR)算法，可达到不拥塞时按链路带宽比例分配流量的效果。实际效果见如下例子：假设成员分片 单元对应两条成员链路，MAC1和MAC2，MAC1带宽100M，MAC2带宽200M，流量状态如下：成员分片单元有90M流量需要发送，则MAC1将传30M数据，MAC2传60M。
成员分片单元和报文的优先级有对应关系，有的成员分片单元对应的报文的优先级高，有的成员分片单元对应的报文的优先级低。如果有多个成员分片单元需要发送分片，则可以进行区分调度，例如可以优先调度高优先级报文的分片，然后再调度低优先级报文的分片，为了实现简单，可以为成员分片单元分配优先级。如果成员分片单元对应的报文的优先级高，则该成员分片单元的优先级高，优先调度该成员分片单元的分片。如果成员分片单元对应的多个报文的优先级，则可以根据多个报文的优先级综合考虑对成员分片单元的优先级进行配置。
步骤S303中在所述选择的成员链路上发送所述报文可以包括：在所述选择的成员链路上发送所述报文的所述多个分片。
选择成员链路之前还可以具体包括：
步骤A、将所述报文进行切片得到多个分片，所述多个分片携带所述优先级信息。
本实施例中，对报文进行切片得到分片负载，增加分片标识后得到分片，该分片标识可以包括所述优先级信息。
步骤S302中根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路可以包括：根据所述报文的优先级与成员链路的对应关系，选择与所述多个分片对应的成员链路。
该步骤可以参考前面的实施例。
步骤S303中在所述选择的成员链路上发送所述报文可以包括：在所述选择的成员链路上发送所述报文的所述多个分片。
本实施例，接收报文，所述报文携带表示报文优先级的优先级信息；根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报 文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高；在所述选择的成员链路上发送所述报文。本实施例能够区分报文的优先级进行不同的切片，并且能够根据成员分片单元与成员链路的对应关系选择用于发送的成员链路，因此高优先级业务流可以优先在高可靠性链路上发送，当成员链路带宽减少时，可以优先调度高优先级业务流的发送。
图5为本发明多链路聚合的报文接收方法实施例的流程图。如图5所示，包括：
步骤501、获取报文分片，根据所述报文分片的分片标识确定所述报文分片所属的成员重组单元，将所述报文分片发送到所述成员重组单元中，所述成员重组单元为重组单元组中的成员。
步骤502、将所述成员重组单元中的报文分片进行重组得到报文。
本实施例根据报文分片的分片标识确定所述报文分片所属的成员重组单元，将所述报文分片发送到所述成员重组单元中，将所述成员重组单元中的报文分片进行重组得到报文，能够对不同分片标识的分片进行分别重组，可以有效地支持发送端根据不同优先级进行不同切片。
图6为本发明多链路聚合的报文发送装置实施例的结构示意图。如图6所示，本实施例提供的多链路聚合的报文发送装置，包括：接收单元601，选择单元602和发送单元603。链路聚合组包括m条成员链路604，m为大于2的整数，其中
接收单元601，用于接收报文，所述报文携带表示报文优先级的优先级信息。
选择单元602，用于根据所述报文的优先级与链路聚合组中的成员链路 的对应关系，选择与所述报文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高。
发送单元603，用于在选择的成员链路上发送所述报文。
如果采用对报文进行切片后选择成员链路的方案，则如图7所示，还可以包括分发单元701、n个成员分片单元702；n为大于2的整数，其中
分发单元701，用于，用于根据所述报文的优先级与分片单元组中的成员分片单元的对应关系，将所述报文发送到与所述报文的优先级对应的成员分片单元中；
成员分片单元702，用于将所述报文进行切片得到多个分片；
选择单元602，用于根据所述成员分片单元与成员链路的对应关系，选择与所述成员分片单元对应的成员链路。
还可以包括：
配置模块，用于根据所述成员分片单元对应的报文的优先级和所述链路聚合组中的成员链路的可靠性，配置所述成员分片单元与成员链路的对应关系。
其中，所述分片单元组包括至少第一成员分片单元和第二成员分片单元，所述报文的优先级与成员分片单元的对应关系为：第一优先级对应第一成员分片单元，第二优先级对应第二成员分片单元；所述链路聚合组包括第一成员链路和第二成员链路，第一成员链路的可靠性比第二成员链路的可靠性高，所述成员分片单元与成员链路的对应关系为：第一成员分片单元对应第一成员链路，第二成员分片单元对应第二成员链路和第一成员链路中的至少一个。
发送单元603，还可以具体用于检测所述成员链路的流量整形器是否允许发送所述分片，若允许则在所述成员链路上发送所述分片，若不允许，则选择与所述优先级对应的其它成员链路发送所述报文的多个分片。流量整形器结构上可以是第一子选择单元的一部分，每个成员链路对应一个流量整形器。
所述分片可以携带分片标识，用于使接收端根据所述分片标识对所述分片进行重组。
如果采用对报文进行切片后选择成员链路的方案，还可以具体包括分片单元，其中
分片单元，用于根据所述报文的优先级将所述报文进行切片得到分片，所述分片携带所述优先级信息。
选择单元602，用于根据所述报文的优先级与成员链路的对应关系，选择与所述多个分片对应的成员链路。
发送单元603，用于在所述选择的成员链路上发送所述报文的所述多个分片。
上述各单元均为逻辑功能模块，可以对应软件或硬件实现，软件指的是使用网络处理器(network processor，简称NP)的微码(micro code)，硬件可以采用FPGA或switch芯片实现。对应软件实现，可以为软件的一个程序或函数调用，对应硬件，可以是电路模块。
图8为本发明多链路聚合的报文接收装置实施例的结构示意图。如图8所示，本实施例提供的多链路聚合的报文接收装置可以是本发明实施例中的室内单元，或者是位于室内单元的装置，可以用于执行例如图3所示的方法。该报文接收装置包括：分发单元801、m个成员重组单元802，m为大于2的整数。
其中，分发单元801，用于获取报文分片，根据所述报文分片的分片标识确定所述报文分片所属的成员重组单元，将所述报文分片发送到所述成员 重组单元中，所述成员重组单元为重组单元组中的成员；
成员重组单元802，用于将报文分片进行重组得到报文。
上述各单元均为逻辑功能模块，可以对应软件或硬件实现，软件指的是使用网络处理器(network processor，简称NP)的微码(micro code)，硬件可以采用FPGA或switch芯片实现。对应软件实现，可以为软件的一个程序或函数调用，对应硬件，可以是电路模块。
图9为本发明多链路聚合的报文发送设备实施例的结构示意图。如图9所示，本实施例提供的多链路聚合的报文发送设备，包括：
通信接口901、处理器902和存储器903，所述通信接口901、处理器902和所述存储器903通过总线904通信，存储器903存储执行指令，所述处理器902调用所述存储器中的执行指令，用于执行本发明实施例，例如图3所示的方法中的步骤。例如：
接收报文，所述报文携带表示报文优先级的优先级信息；
根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高；和
在所述选择的成员链路上发送所述报文。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统，装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可 以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。

Claims (18)

  1. 一种报文发送方法，其特征在于，包括：
    接收报文，所述报文携带表示报文优先级的优先级信息；
    根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高；和
    在所述选择的成员链路上发送所述报文。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路之前，还包括：
    根据所述报文的优先级与分片单元组中的成员分片单元的对应关系，将所述报文发送到与所述报文的优先级对应的成员分片单元中；和
    将所述成员分片单元中的所述报文进行切片得到多个分片；
    其中，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路包括：根据所述成员分片单元与成员链路的对应关系，选择与所述成员分片单元对应的成员链路；
    在所述选择的成员链路上发送所述报文包括：在所述选择的成员链路上发送所述报文的所述多个分片。
  3. 根据权利要求1所述的方法，其特征在于，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路之前，还包括：
    将所述报文进行切片得到多个分片，所述多个分片携带所述优先级信息；
    其中，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路包括：根据所述报文的优先级与成员链路的对应关系，选择与所述多个分片对应的成员链路；
    在所述选择的成员链路上发送所述报文包括：在所述选择的成员链路上发送所述报文的所述多个分片。
  4. 根据权利要求2所述的方法，其特征在于，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路之前，还包括：
    根据所述成员分片单元对应的报文的优先级和所述链路聚合组中的成员链路的可靠性，配置所述成员分片单元与成员链路的对应关系。
  5. 根据权利要求2所述的方法，其特征在于，所述根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路之前，还包括：
    根据所述成员分片单元对应的报文的优先级确定所述成员分片单元的优先级；
    根据所述成员分片单元的优先级和所述链路聚合组中的成员链路的可靠性，配置所述成员分片单元与成员链路的对应关系。
  6. 根据权利要求2所述的方法，其特征在于，所述分片单元组包括至少第一成员分片单元和第二成员分片单元，在所述报文的优先级与成员分片单元的对应关系中，第一优先级对应第一成员分片单元，第二优先级对应第二成员分片单元；
    其中，在所述成员分片单元与成员链路的对应关系中，所述第一成员分片单元对应所述第一成员链路，所述第二成员分片单元对应所述第二成员链路和所述第一成员链路中的至少一个。
  7. 根据权利要求2所述的方法，其特征在于，在所述选择的成员链路发送所述报文的所述多个分片，包括：
    检测所述成员链路的流量整形器是否允许发送所述分片，若允许则在所述成员链路上发送所述分片，若不允许，则选择与所述优先级对应的其它成员链路发送所述报文的所述多个分片。
  8. 根据权利要求2所述的方法，其特征在于，还包括：
    判断所述报文是否需要切片，若不需要切片，则将所述报文调度到所述选择的成员链路。
  9. 根据权利要求8所述的方法，其特征在于，所述判断所述报文是否需要切片之前，还包括：
    为每个成员链路预留带宽，预留的所述带宽用于发送非切片报文。
  10. 根据权利要求2所述的方法，其特征在于，所述分片携带分片标识，用于使接收端根据所述分片标识对所述分片进行重组。
  11. 一种多链路聚合的报文发送装置，其特征在于，包括：
    接收单元，用于接收报文，所述报文携带表示报文优先级的优先级信息；
    选择单元，用于根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高；
    发送单元，用于在所述选择的成员链路上发送所述报文。
  12. 根据权利要求11所述的装置，其特征在于，还包括：
    分发单元，用于根据所述报文的优先级与分片单元组中的成员分片单元的对应关系，将所述报文发送到与所述报文的优先级对应的成员分片单元中；和
    成员分片单元，用于分别将所述报文进行切片得到多个分片；
    所述选择单元具体用于根据所述成员分片单元与成员链路的对应关系，选择与所述成员分片单元对应的成员链路；
    所述发送单元具体用于在所述选择的成员链路上发送所述报文的所述多个分片。
  13. 根据权利要求11所述的装置，其特征在于，还包括：
    分片单元，用于根据所述报文的优先级将所述报文进行切片得到分片，所述分片携带所述优先级信息；
    所述选择单元具体用于根据所述报文的优先级与成员链路的对应关系，选择与所述多个分片对应的成员链路；
    所述发送单元具体用于在所述选择的成员链路上发送所述报文的所述多个分片。
  14. 根据权利要求12所述的装置，其特征在于，还包括：
    配置模块，用于根据所述成员分片单元对应的报文的优先级和所述链路聚合组中的成员链路的可靠性，配置所述成员分片单元与成员链路的对应关系。
  15. 根据权利要求12所述的装置，其特征在于，所述分片单元组包括至少第一成员分片单元和第二成员分片单元，在所述报文的优先级与成员分片单元的对应关系中，第一优先级对应第一成员分片单元，第二优先级对应第二成员分片单元；
    在所述成员分片单元与成员链路的对应关系中，所述第一成员分片单元对应所述第一成员链路，所述第二成员分片单元对应所述第二成员链路和所述第一成员链路中的至少一个。
  16. 根据权利要求12所述的装置，其特征在于，所述发送单元，还用于检测所述成员链路的流量整形器是否允许发送所述分片，若允许则在所述成员链路上发送所述分片，若不允许，则选择与所述优先级对应的其它成员链路发送所述报文的所述多个分片。
  17. 根据权利要求12所述的装置，其特征在于，所述分片携带分片标识，用于使接收端根据所述分片标识对所述分片进行重组。
  18. 一种多链路聚合的报文发送设备，其特征在于，包括：
    通信接口、处理器和存储器，所述通信接口、处理器和所述存储器通过总线通信，存储器存储执行指令，所述处理器调用所述存储器中的执行指令，用于执行以下操作：
    接收报文，所述报文携带表示报文优先级的优先级信息；
    根据所述报文的优先级与链路聚合组中的成员链路的对应关系，选择与所述报文的优先级对应的成员链路，其中，所述链路聚合组包括至少第一成员链路和第二成员链路，所述第一成员链路的可靠性比所述第二成员链路的可靠性高，在所述报文的优先级与成员链路的对应关系中，第一优先级对应所述第一成员链路，第二优先级对应所述第二成员链路和所述第一成员链路中的至少一个，其中所述第一优先级比所述第二优先级的优先级高；和
    在所述选择的成员链路上发送所述报文。
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