WO2017067476A1 - Mac地址处理方法及装置 - Google Patents

Mac地址处理方法及装置 Download PDF

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Publication number
WO2017067476A1
WO2017067476A1 PCT/CN2016/102717 CN2016102717W WO2017067476A1 WO 2017067476 A1 WO2017067476 A1 WO 2017067476A1 CN 2016102717 W CN2016102717 W CN 2016102717W WO 2017067476 A1 WO2017067476 A1 WO 2017067476A1
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Prior art keywords
packet
mac address
preset threshold
priority
mac
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PCT/CN2016/102717
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English (en)
French (fr)
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邢纪哲
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中兴通讯股份有限公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/02—Topology update or discovery
    • H04L45/08—Learning-based routing, e.g. using neural networks or artificial intelligence
    • 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
    • H04L45/36—Backward learning
    • 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
    • H04L45/74—Address processing for routing
    • 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
    • H04L47/23—Bit dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming

Definitions

  • the present invention relates to the field of communications, and in particular to a MAC address processing method and apparatus.
  • the learning and management of the MAC address provides the basis for the Layer 2 forwarding of the entire switch system. Users can manage and control the sending and forwarding of Layer 2 packets according to specific requirements.
  • FIG. 1 is a schematic diagram of a MAC learning overrun policy according to the related art. As shown in FIG. 1, a user sets a threshold to control the number of learned MACs. When the learned MAC number exceeds a set threshold, The subsequent MACs are no longer learning, and may choose to continue forwarding or discarding the subsequent MACs.
  • the information about the discarded packets cannot be fed back to the user.
  • the discarded packets are invisible.
  • the user cannot detect the discarded packets on the network. Specific information, for example, which messages are continuously sent and which messages impact the MAC address table.
  • the embodiment of the invention provides a method and a device for processing a MAC address, so as to solve at least the problem that the packet discarded by the MAC learning after the MAC learning exceeds the limit can not be fed back to the user and the processing mode of the packet is single.
  • a method for processing a MAC address is provided, and the number of MAC addresses learned by the media access control MAC address of the received message is counted; if the number of learned MAC addresses exceeds a preset threshold, And forwarding, or discarding the packet that exceeds the preset threshold according to the preset packet priority. If the number of the MAC address exceeds the preset threshold, the packet cannot be MAC. Address learning.
  • the received message includes:
  • the preset threshold and the priority are configured.
  • the method before forwarding or discarding the packet that exceeds the preset threshold according to the preset packet priority, the method includes:
  • control switch information wherein the control switch information is used to indicate whether to trigger forwarding or discarding the packet according to the set priority of the packet exceeding a preset threshold.
  • the basic information of the packet is used as an index to search for the packet in the pre-stored packet, where the pre-stored packet is a packet that is received after the quantity exceeds the preset threshold, and the basic information includes: MAC address, the priority and the LAN number.
  • the aging flag of the pre-stored packet is updated when the preset aging time arrives, and the aging flag is used to indicate that the MAC address of the packet is from the stored packet. Delete or keep.
  • a MAC address processing apparatus including:
  • the statistics module is configured to count the number of MAC addresses learned by the media access control MAC address for the received message
  • the processing module is configured to forward or discard a packet that exceeds the preset threshold according to a preset packet priority, where the number of the MAC address learning exceeds a preset threshold, where the MAC address is forwarded or discarded. In the case where the number exceeds the preset threshold, MAC address learning cannot be performed on the message.
  • the device includes: a configuration module, configured to receive the packet, and configure the preset threshold and the priority before the number of MAC addresses learned by the media access control MAC address is received.
  • the device includes: a control module, configured to acquire control switch information, where the control switch information is obtained, before forwarding or discarding a packet that exceeds the preset threshold according to a preset packet priority And indicating, according to whether the priority of the packet according to the setting is triggered, forwarding or discarding the packet exceeding a preset threshold.
  • a control module configured to acquire control switch information, where the control switch information is obtained, before forwarding or discarding a packet that exceeds the preset threshold according to a preset packet priority And indicating, according to whether the priority of the packet according to the setting is triggered, forwarding or discarding the packet exceeding a preset threshold.
  • the device includes: an indexing module, configured to pre-store the basic information of the packet as an index before forwarding or discarding the packet after the preset threshold is forwarded according to a preset packet priority.
  • the packet is searched for the packet, and the pre-stored packet is a packet that is received after the quantity exceeds the preset threshold, and the basic information includes: a MAC address, the priority, and a local area network number.
  • the device includes: an update module, configured to update an aging flag of the pre-stored packet when the preset aging time arrives, where the aging flag is used to indicate that the packet is MAC The address is deleted or retained from the stored message.
  • an update module configured to update an aging flag of the pre-stored packet when the preset aging time arrives, where the aging flag is used to indicate that the packet is MAC The address is deleted or retained from the stored message.
  • a computer storage medium configured to be stored for performing the above A computer program for processing a MAC address.
  • the number of MAC addresses learned by the media access control MAC address is counted in the received packet; if the number of learned MAC addresses exceeds a preset threshold, the priority of the packet is exceeded according to the preset priority.
  • the packet after the preset threshold is forwarded or discarded. If the number of the MAC address exceeds the preset threshold, the MAC address learning cannot be performed on the packet.
  • the user and the processing method of the message are single, which realizes the user's monitoring and flexible processing of the message.
  • FIG. 1 is a schematic diagram of a MAC learning overrun policy according to the related art
  • FIG. 2 is a flowchart of a method for processing a MAC address according to an embodiment of the present invention
  • FIG. 3 is a structural block diagram 1 of a MAC address processing apparatus according to an embodiment of the present invention.
  • FIG. 4 is a block diagram 2 of a MAC address processing apparatus according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram 3 of a MAC address processing apparatus according to an embodiment of the present invention.
  • FIG. 6 is a structural block diagram 4 of a MAC address processing apparatus according to an embodiment of the present invention.
  • FIG. 7 is a structural block diagram of a MAC overrun mirroring apparatus according to a preferred embodiment of the present invention.
  • FIG. 8 is a flow chart of a MAC overrun mirroring method in accordance with a preferred embodiment of the present invention.
  • FIG. 2 is a flowchart of a MAC address processing method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:
  • Step S202 Counting the number of MAC addresses learned by the media access control MAC address of the received packet
  • step S204 if the number of the MAC address learning exceeds the preset threshold, the packet exceeding the preset threshold is forwarded or discarded according to the preset packet priority, where the number of the MAC address exceeds the preset.
  • the threshold is set, MAC address learning cannot be performed on the packet.
  • the number of MAC addresses learned by the media access control MAC address of the received packet is counted; if the number of learned MAC addresses exceeds a preset threshold, the pre-set packet priority exceeds the preset.
  • the packet is forwarded or discarded after the threshold is exceeded. If the number of the MAC address exceeds the preset threshold, the MAC address learning cannot be performed on the packet.
  • the preset threshold and the priority are configured before the number of MAC addresses learned by the media access control MAC address is counted.
  • the control switch information is obtained, where the control switch information indicates whether the priority of the packet is set according to the priority.
  • the packet is forwarded or discarded if the preset threshold is exceeded.
  • the packet before the packet is forwarded or discarded according to the preset priority of the packet, the packet is sent after the preset threshold is exceeded, and the basic information of the packet is extracted.
  • the information includes: a MAC address, the priority level, and a local area network number; and the stored information is searched for the index according to the basic information.
  • the aging flag is updated according to whether the MAC address of the packet is already in the stored packet, and the aging flag is used to reach the preset aging time. At the time, the MAC address of the message is indicated to be deleted or retained from the stored message.
  • the preset threshold and the priority are configured before receiving the packet and counting the number of MAC addresses learned by the media access control MAC address.
  • the control switch information is obtained, where the control switch information is used to indicate whether to trigger the report according to the setting.
  • the priority of the packet is forwarded or discarded if the packet exceeds the preset threshold.
  • the packet is searched for in the pre-stored packet by using the basic information of the packet as an index before the packet is forwarded or discarded according to the preset packet priority.
  • the pre-stored packet is a packet received after the number exceeds the preset threshold, and the basic information includes: a MAC address, the priority, and a local area network number.
  • the aging flag of the pre-stored message is updated, and the aging flag is used to indicate that the MAC address of the packet is deleted from the stored message or Reserved.
  • a MAC address processing apparatus is also provided in the embodiment, and the apparatus is configured to implement the foregoing embodiments and preferred embodiments, and details are not described herein.
  • the term "module” may implement a combination of software and/or hardware of a predetermined function.
  • the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.
  • FIG. 3 is a structural block diagram 1 of a MAC address processing apparatus according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes:
  • the statistics module 32 is configured to count the number of MAC addresses learned by the media access control MAC address of the received packet. the amount;
  • the processing module 34 is connected to the statistic module 32, and is configured to forward or discard the packet that exceeds the preset threshold according to the preset packet priority, where the number of the MAC address learning exceeds the preset threshold. If the number of the MAC address exceeds the preset threshold, MAC address learning cannot be performed on the packet.
  • the statistic module 32 counts the number of MAC addresses learned by the media access control MAC address of the received message; and the processing module 34 prioritizes the packet according to the pre-set message if the number of learned MAC addresses exceeds a preset threshold.
  • the packet is forwarded or discarded after the packet exceeds the preset threshold. If the number of the MAC address exceeds the preset threshold, the MAC address learning cannot be performed on the packet. The message cannot be fed back to the user and the message processing mode is single. The user's monitoring and flexible processing of the message are realized.
  • FIG. 4 is a block diagram 2 of a MAC address processing apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes:
  • the configuration module 42 is connected to the statistics module 32, and is configured to set the preset threshold and the priority before the number of MAC addresses learned by the media access control MAC address is counted.
  • FIG. 5 is a structural block diagram 3 of a MAC address processing apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes:
  • the control module 52 is configured to acquire control switch information before forwarding or discarding the packet that exceeds the preset threshold according to the preset packet priority, where the control switch information is used to indicate whether to trigger the report according to the setting.
  • the priority of the packet is forwarded or discarded if the packet exceeds the preset threshold.
  • FIG. 6 is a structural block diagram 4 of a MAC address processing apparatus according to an embodiment of the present invention. As shown in FIG. 6, the apparatus includes:
  • the indexing module 62 is configured to search for the packet in the pre-stored packet by using the basic information of the packet as an index before forwarding or discarding the packet after the preset threshold is forwarded according to the preset packet priority.
  • the pre-stored packet is a packet received after the number exceeds the preset threshold, and the basic information includes: a MAC address, the priority, and a local area network number.
  • the update module 64 is configured to: when the preset aging time arrives, update the aging flag of the pre-stored message, where the aging flag is used to indicate that the MAC address of the packet is deleted from the stored message or Reserved.
  • a preferred embodiment of the present invention provides a mirroring device for MAC overrun, adding a control switch (corresponding to the control module 52 of the above embodiment) and a storage unit, and the control switch is used to control whether the MAC overrun function is enabled, and if enabled, After the MAC is overrun, the MAC that is not able to be learned after the limit is exceeded is stored by the storage unit, and the priority controller (corresponding to the processing module 34 of the above embodiment) is added to store the priority and the report in the unit.
  • the text information is indexed and controls different actions of different priority messages, thereby overcoming the deficiencies in the prior art.
  • Step 1 Perform parameter configuration, such as the maximum number of MAC learning thresholds, configure control switches, and configure priority controllers.
  • Step 2 Perform MAC learning.
  • the MAC over-mirror mirror control switch is read. If the control switch is not enabled, the packet is processed according to the prior art; if the control switch is enabled, Parse the packet and read the packet related information.
  • Step 3 The subsequent over-limit message information is stored in the storage unit provided by the present invention.
  • step 4 the priority of the packet in the storage unit and other information are used as indexes, and different actions are performed on the packets of different priorities according to the information in the priority controller.
  • Step 5 When the aging time arrives, the MAC storage unit is aged.
  • the above-mentioned embodiment ensures that the invented control unit can effectively control the function enable, and ensure that the storage unit provided by the embodiment of the present invention can effectively serve the message if the control unit is enabled when the MAC learning reaches the set maximum threshold.
  • the storage mechanism ensures that when the storage unit is full, the effective mechanism aging the MAC to ensure that the invented priority control unit can perform different actions on different priority packets to ensure flexible configuration of related parameters.
  • FIG. 7 is a structural block diagram of a MAC overrun mirroring apparatus according to a preferred embodiment of the present invention, as shown in FIG. 7.
  • the parameter configuration module 72 (corresponding to the configuration module 42 of the foregoing embodiment) configures MAC learning and management parameters, and the related functions are enabled or disabled (such as the number of transmissions, the maximum learning threshold, and the over-limit policy, but are not limited thereto). In order to meet the needs of users and the market.
  • the transceiver module 74 processes the received message.
  • the determining module 76 determines whether the MAC over-mirror mirroring function is enabled according to the parameter configuration of the parameter configuration module 72.
  • the storage module 78 stores the excess message and reads the valid information of the message and stores it in the storage structure designed by the present invention.
  • the action processing module 710 (corresponding to the processing module 34 of the above embodiment) provides the priority controller with the priority of the message of the storage module 78 as an index, and performs different action processing on the message without the priority.
  • FIG. 8 is a flow chart of a MAC overrun mirroring method, as shown in FIG. 8 according to a preferred embodiment of the present invention.
  • step S801 initial parameter configuration is performed.
  • Step S802 receiving a message.
  • step S803 the number of packets is determined. If the number of learned MAC addresses is smaller than the threshold set by the parameter configuration module 72, the learning continues. If the number of MAC addresses exceeds the set threshold, the storage module 78 is entered.
  • Step S804 determining whether the MAC over-mirror mirroring function is enabled according to the control switch set in the initialization parameter of the parameter configuration module 72. If not enabled, the message is processed according to the prior art. If enabled, the action processing module 710.
  • Step S805 extracting related fields of the message, and storing the over-limit message information.
  • Step S806 according to the priority controller set by the initialization parameter of the parameter configuration module 72, perform different processing actions on the messages of different priorities.
  • step S807 the storage unit performs a timing aging operation.
  • step S808 the packet is discarded or forwarded.
  • the first is the initialization of the system, that is, the parameter configuration module 72 in Fig. 7, the parameter configuration module 72 is mainly responsible for configuring various parameters to provide a stable state before the message comes in.
  • the maximum number of learned MAC addresses is 100, and the MAC over-mirror mirroring function is enabled.
  • the stored procedure needs to extract the valid information of the MAC message and store it in the storage unit, that is, the storage module 78.
  • the storage unit names it L2_extra_entry with a capacity of 128k and the L2_extra_entry capacity is expandable.
  • MAC_ADDR MAC address
  • VLAN_ID VLAN number, which identifies the VLAN to which the packet belongs.
  • HIT flag bit check the related MAC again, used to determine the aging strategy
  • COUNTER counter, used to record the number of times each MAC message is used
  • COS packet priority
  • step S806 The basic information of the packet in Table 2 is extracted (but is not limited thereto), and the L2_extra_entry storage unit is searched by the MAC address, the VLAN number, and the COS value: if the MAC address already exists in the L2_extra_entry.
  • the HIT bit and the COUTER bit are updated; if the MAC is not present in the L2_extra_entry, the HIT bit and the COUTER bit are set to 1, respectively.
  • the HIT bit in each entry in the L2_extra_entry is checked. If the HIT of an entry is 1, the HIT is set to 0; if the HIT is 0 at this time, the MAC address is deleted from the storage unit.
  • the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk,
  • the optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.
  • each of the above modules may be implemented by software or hardware.
  • the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the modules are located in multiple In the processor.
  • Embodiments of the present invention also provide a storage medium.
  • the storage medium may be configured to store program code for performing the method steps of the above embodiment:
  • Step S202 Counting the number of MAC addresses learned by the media access control MAC address of the received packet
  • step S204 if the number of the MAC address learning exceeds the preset threshold, the packet exceeding the preset threshold is forwarded or discarded according to the preset packet priority, where the number of the MAC address exceeds the preset.
  • the threshold is set, MAC address learning cannot be performed on the packet.
  • the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory.
  • ROM Read-Only Memory
  • RAM Random Access Memory
  • a mobile hard disk e.g., a hard disk
  • magnetic memory e.g., a hard disk
  • the processor executes the method of the foregoing embodiment according to the stored program code in the storage medium. Method steps.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the method and device for processing a MAC address provided by the embodiment of the present invention have the following beneficial effects: the problem that the packet discarded after the MAC learning exceeds the limit cannot be fed back to the user and the processing mode of the packet is single, and the problem is achieved. User's monitoring and flexible processing of messages.

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Abstract

本发明实施例提供了一种MAC地址处理方法及装置，其中，该方法包括：统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量；在该MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃，其中，该MAC地址的数量超过该预设阈值的情况下，不能对该报文进行MAC地址学习，解决了MAC学习超限后丢弃的报文无法反馈用户以及报文的处理方式单一的问题，实现了用户的监控和报文的灵活处理。

Description

MAC地址处理方法及装置 技术领域
本发明涉及通信领域，具体而言，涉及一种MAC地址处理方法及装置。
背景技术
随着通信技术的发展，网络数据的传输已经成为网络发展的重要组成部分。MAC地址的学习和管理为整个交换机系统的报文二层转发提供了基础，用户可以根据具体的需求来对二层报文的发送和转发进行相应的管理和控制。
在相关技术中的MAC管理策略中，支持对MAC学习数目的限制，当已经学习到的MAC到达一定的数目后，可以要求之后进入的报文不再进行MAC学习，而是根据用户自己的需求，将后续的报文进行转发或者丢弃处理。图1是根据相关技术中的MAC学习超限策略的示意图，如图1所示，用户设定一个阈值，来控制学习的MAC个数，当学习到的MAC数目超过所设定的阈值时，之后的MAC不再进行学习，可以选择对后续的MAC进行继续转发或者丢弃的处理。
在相关技术中的MAC管理技术，若要限制MAC学习的数量，则当学习到的MAC数目达到所设的阈值时，只能选择报文转发或者丢弃，这就造成了MAC管理机制存在着以下的不足：
首先，如果选择MAC学习超限后丢弃，这些被丢弃的报文的相关信息无法反馈给用户，对于用户来说，这些被丢弃的报文是不可见的，用户无法感知网络中被丢弃报文的具体信息，例如，哪些报文持续上送，哪些报文对MAC地址表进行冲击。
其次，如果选择MAC学习超限后转发，那么之后进入的所有报文都转发，处理方式单一，缺失了一定的灵活性。
针对相关技术中，MAC学习超限后丢弃的报文无法反馈用户以及报文的处理方式单一的问题，目前还没有有效的解决方案。
发明内容
本发明实施例提供了一种MAC地址处理方法及装置，以至少解决相关技术中MAC学习超限后丢弃的报文无法反馈用户以及报文的处理方式单一的问题。
根据本发明的一个实施例，提供了一种MAC地址处理方法，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量；在所述MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃，其中，所述MAC地址的数量超过所述预设阈值的情况下，不能对所述报文进行MAC地址学习。
可选地，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量之前，包括：
配置所述预设阈值和所述优先级。
可选地，依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃之前，包括：
获取控制开关信息，其中，所述控制开关信息用于指示是否触发依据设置的所述报文的优先级对超过预设阈值所述报文转发或者丢弃。
可选地，依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃之前，还包括，
以报文的基本信息为索引在预先存储的报文中查找所述报文，所述预先存储的报文为所述数量超过所述预设阈值后接收的报文，所述基本信息包括：MAC地址，所述优先级以及局域网号。
可选地，在预设老化时间到达时，更新所述预先存储的报文的老化标志位，所述老化标志位用于指示将所述报文的MAC地址从所述存储的所述报文中删除或者保留。
根据本发明的另一个实施例，还提供了一种MAC地址处理装置，包括：
统计模块，设置为统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量；
处理模块，设置为在所述MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃，其中，所述MAC地址的数量超过所述预设阈值的情况下，不能对所述报文进行MAC地址学习。
可选地，所述装置包括，配置模块，设置为接收报文，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量之前，配置所述预设阈值和所述优先级。
可选地，所述装置包括，控制模块，设置为依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃之前，获取控制开关信息，其中，所述控制开关信息用于指示是否触发依据设置的所述报文的优先级对超过预设阈值所述报文转发或者丢弃。
可选地，所述装置包括，索引模块，设置为依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃之前，以报文的基本信息为索引在预先存储的报文中查找所述报文，所述预先存储的报文为所述数量超过所述预设阈值后接收的报文，所述基本信息包括：MAC地址，所述优先级以及局域网号。
可选地，所述装置包括，更新模块，设置为在预设老化时间到达时，更新所述预先存储的报文的老化标志位，所述老化标志位用于指示将所述报文的MAC地址从所述存储的所述报文中删除或者保留。
在根据本发明的再一实施例，还提供了一种计算机存储介质，设置为存储用于执行上述 MAC地址处理方法的计算机程序。
通过本发明实施例，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量；在该MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃，其中，该MAC地址的数量超过该预设阈值的情况下，不能对该报文进行MAC地址学习，解决了MAC学习超限后丢弃的报文无法反馈用户以及报文的处理方式单一的问题，实现了用户的监控和报文的灵活处理。
附图说明
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：
图1是根据相关技术中的MAC学习超限策略的示意图；
图2是根据本发明实施例的一种MAC地址处理方法的流程图；
图3是根据本发明实施例的一种MAC地址处理装置的结构框图一；
图4是根据本发明实施例的一种MAC地址处理装置的结构框图二；
图5是根据本发明实施例的一种MAC地址处理装置的结构框图三；
图6是根据本发明实施例的一种MAC地址处理装置的结构框图四；
图7是根据本发明优选实施例的一种MAC超限镜像装置的结构框图；
图8是根据本发明优选实施例的一种MAC超限镜像方法流程图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互组合。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
在本实施例中提供了一种MAC地址处理方法，图2是根据本发明实施例的一种MAC地址处理方法的流程图，如图2所示，该流程包括如下步骤：
步骤S202，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量；
步骤S204，在该MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃，其中，该MAC地址的数量超过该预设阈值的情况下，不能对该报文进行MAC地址学习。
通过上述步骤，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量；在该MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃，其中，该MAC地址的数量超过该预设阈值的情况下，不能对该报文进行MAC地址学习，解决了MAC学习超限后丢弃的报文无法反馈用户以及报文的处理方式单一的问题，实现了用户的监控和报文的灵活处理。
在本实施例中，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量之前，配置该预设阈值和该优先级。
在本实施例中，依据设置的该报文的优先级对超过预设阈值该报文转发或者丢弃之前，获取控制开关信息，其中，该控制开关信息指示是否依据设置的该报文的优先级对超过预设阈值该报文转发或者丢弃，
在本实施例中，依据设置的该报文的优先级对超过预设阈值该报文转发或者丢弃之前，存储超过该预设阈值后的该报文，提取该报文的基本信息，该基本信息包括：MAC地址，该优先级以及局域网号；依据该基本信息为索引查找存储的该报文。
在本实施例中，提取该报文的基本信息之后，依据该报文的MAC地址是否已在该存储的该报文中，更新老化标志位，该老化标志位用于在预设老化时间到达时，指示将该报文的MAC地址从该存储的该报文中删除或者保留。
在本实施例中，接收报文，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量之前，配置该预设阈值和该优先级。
在本实施例中，依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃之前，获取控制开关信息，其中，该控制开关信息用于指示是否触发依据设置的该报文的优先级对超过预设阈值该报文转发或者丢弃。
在本实施例中，依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃之前，以报文的基本信息为索引在预先存储的报文中查找该报文，该预先存储的报文为该数量超过该预设阈值后接收的报文，该基本信息包括：MAC地址，该优先级以及局域网号。
在本实施例中，在预设老化时间到达时，更新该预先存储的报文的老化标志位，该老化标志位用于指示将该报文的MAC地址从该存储的该报文中删除或者保留。
在本实施例中还提供了一种MAC地址处理装置，该装置设置为实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图3是根据本发明实施例的一种MAC地址处理装置的结构框图一，如图3所示，该装置包括：
统计模块32，设置为统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数 量；
处理模块34与统计模块32连接，设置为在该MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃，其中，该MAC地址的数量超过该预设阈值的情况下，不能对该报文进行MAC地址学习。
通过上述装置，统计模块32统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量；处理模块34在该MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃，其中，该MAC地址的数量超过该预设阈值的情况下，不能对该报文进行MAC地址学习，解决了MAC学习超限后丢弃的报文无法反馈用户以及报文的处理方式单一的问题，实现了用户的监控和报文的灵活处理。
图4是根据本发明实施例的一种MAC地址处理装置的结构框图二，如图4所示，除包括图3的模块以外，该装置包括：
配置模块42与所述统计模块32连接，设置为统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量之前，配置该预设阈值和该优先级。
图5是根据本发明实施例的一种MAC地址处理装置的结构框图三，如图5所示，除包括图3的模块以外，该装置包括：
控制模块52，设置为依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃之前，获取控制开关信息，其中，该控制开关信息用于指示是否触发依据设置的该报文的优先级对超过预设阈值该报文转发或者丢弃。
图6是根据本发明实施例的一种MAC地址处理装置的结构框图四，如图6所示，除包括图3的模块以外，该装置包括：
索引模块62，设置为依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃之前，以报文的基本信息为索引在预先存储的报文中查找该报文，该预先存储的报文为该数量超过该预设阈值后接收的报文，该基本信息包括：MAC地址，该优先级以及局域网号。
更新模块64，设置为在预设老化时间到达时，更新该预先存储的报文的老化标志位，该老化标志位用于指示将该报文的MAC地址从该存储的该报文中删除或者保留。
下面结合优选实施例对本发明进行详细说明。
本发明的优选实施例提供了一种MAC超限的镜像装置，添加控制开关(相当于上述实施例的控制模块52)和存储单元，控制开关用来控制MAC超限功能是否开启，如果开启，在MAC超限后，对后续超过限制数目而不能被学习的MAC利用存储单元进行存储，同时添加优先级控制器(相当于上述实施例的处理模块34)，以存储单元中的优先级和报文信息为索引，控制不同优先级报文的不同动作，以此克服了现有技术中的不足。不但提高了网络安全性和用户体验满意度，用户能够监控感知到哪些MAC不能被学习，哪些MAC持续上送，对CPU进行冲击等，以对其进行相应防御；而且，用户能够根据优先级区别对待超限报文，灵活配 置优先级策略，例如，对高优先级的报文进行转发，对低优先级的报文丢弃等。
本发明的优选实施例的的所述MAC超限的镜像方法包括以下步骤：
步骤1，进行参数配置，如MAC学习数量最大阈值，配置控制开关，配置优先级控制器等。
步骤2，进行MAC学习，当学习数量达到所设阈值时，读取MAC超限镜像控制开关，若控制开关未使能，则按照现有技术对报文进行处理；若控制开关使能，则对报文进行解析，读取报文相关信息。
步骤3，将后续超限的报文信息存入本发明所提供的存储单元中。
步骤4，以存储单元中报文的优先级和其他信息为索引，根据优先级控制器中的信息，对不同优先级的报文进行不同的动作。
步骤5，当老化时间到达时，对MAC存储单元老化。
通过上述实施例，保证所发明的控制单元能够有效控制功能使能，保证在MAC学习达到所设置的最大阈值时，若控制单元使能，本发明实施例所提供的存储单元能够有效对报文进行存，保证在存储单元容量满的时候，有效机制对MAC进行老化，保证所发明的优先级控制单元能够有效对不同优先级的报文进行不同的动作处理，保证相关参数用户能够灵活配置。
图7是根据本发明优选实施例的一种MAC超限镜像装置的结构框图，如图7所示。
参数配置模块72(相当于上述实施例的配置模块42)，配置MAC学习和管理参数，相关功能使能或去使能(如发送个数、最大学习阈值，超限策略，但不限于此)，以便满足用户和市场需求。
收发模块74，将收到的报文进行收发处理。
判断模块76，根据参数配置模块72的参数配置，判断MAC超限镜像功能是否使能。
存储模块78，对超限的后续报文进行存储，读取报文的有效信息，存入本发明所设计的存储结构中。
动作处理模块710(相当于上述实施例的处理模块34)，本发明提供优先级控制器，以存储模块78报文的优先级为索引，对不用优先级的报文进行不同的动作处理。
图8是根据本发明优选实施例的一种MAC超限镜像方法流程图，如图8所示。
步骤S801，进行初始化参数配置。
步骤S802，接收报文。
步骤S803，判断报文个数，如果已经学习的MAC个数小于参数配置模块72所设阈值，继续学习，如果MAC的个数超过所设阈值，则进入存储模块78。
步骤S804，根据参数配置模块72的初始化参数中设置的控制开关，判断MAC超限镜像功能是否使能。如果不使能，则按照原有技术对报文进行处理，如果使能，动作处理模块710。
步骤S805，提取报文的有关字段，对超限的报文信息进行存储。
步骤S806，根据参数配置模块72的初始化参数所设置的优先级控制器，对不同优先级的报文进行不同的处理动作。
步骤S807，存储单元进行定时的老化动作。
步骤S808，对报文进行丢弃或者转发。
下面对本发明优选实施例的实施方式MAC超限镜像方法进行详细说明：
首先是系统的初始化，也即图7中的参数配置模块72，参数配置模块72主要负责配置各个参数，为报文进来之前提供一个稳定的状态。
假设要求设置MAC最大的学习数目为100，对MAC超限镜像功能进行使能。配置优先级控制器，根据用户需求，为不同优先级的报文提供不同的动作处理。如表1所示，将优先级1，2，3的报文进行丢弃，而将优先级高的4，5，6，7进行转发。
表1
优先级 动作
1 drop
2 drop
3 drop
4 forward
5 forward
6 forward
7 forward
在另一个实施例中，存储过程需要提取MAC报文的有效信息存入存储单元，即存储模块78。假设：存储单元将其命名为L2_extra_entry，容量为128k，L2_extra_entry容量可扩展。
对L2_extra_entry设计了以下字段(但不限于此)，如表2所示：
表2
Figure PCTCN2016102717-appb-000001
其中，(1)MAC_ADDR：MAC地址；
(2)PORT_NUM：入端口号，标识报文从哪个端口进入；
(3)VLAN_ID：VLAN号，标识报文所属的VLAN；
(4)HIT：HIT标志位，检查相关的MAC再次使用，用于决定老化策略；
(5)COUNTER：计数器，用来记录每个MAC报文使用的次数；
(6)COS：报文优先级；
(7)AGE_TIMER：老化时间。
在上述实施例的基础上，假设进入了150条MAC报文，需要对超限的50条MAC进行存储和选择动作，即步骤S806。提取如表2中报文的基本信息(但不限于此)，以MAC地址、VLAN号和COS值为索引，查找L2_extra_entry存储单元：如果L2_extra_entry中已经存在该条MAC。则更新HIT位和COUTER位；如果L2_extra_entry中不存在该条MAC，则HIT位和COUTER位分别置1。
假设存储的部分超限报文信息如表3所示。
表3
MAC_ADDR PORT_NUM VLAN_ID HIT COUNTER COS AGE_TIMER
0000:0000:0011 2 1 1 1 2 360
0000:0000:0012 2 3 1 1 1 360
0000:0000:0013 2 1 1 1 7 360
若此时0013和0014报文进入，则对L2_extra_entry更新如表4：
表4
MAC_ADDR PORT_NUM VLAN_ID HIT COUNTER COS AGE_TIMER
0000:0000:0011 2 1 1 1 2 360
0000:0000:0012 2 3 1 1 1 360
0000:0000:0013 2 1 1 2 7 360
0000:0000:0014 2 1 1 1 5 360
根据实施例中设计的优先级控制，在动作处理过程中，根据以上4条MAC的COS值，对报文进行不同动作，0011和0012进行丢弃，0013和0014转发。
在上述实施例的基础上，如果存储单元的容量达到了最大值，则需要对其进行老化，以做到实时更新，即步骤S807。本实施例中采用的老化机制为：L2_extra_entry中默认设置老化时间AGE_TIMER＝360s，用户可以根据需求灵活配置。当到达老化时间，检查L2_extra_entry中的每个entry中的HIT位，如果某entry的HIT为1，则将HIT置0；如果此时HIT为0，就将此MAC地址从存储单元中删除。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述模块分别位于多个处理器中。
本发明的实施例还提供了一种存储介质。可选地，在本实施例中，上述存储介质可以被设置为存储用于执行上述实施例的方法步骤的程序代码：
步骤S202，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量；
步骤S204，在该MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过该预设阈值后的报文转发或者丢弃，其中，该MAC地址的数量超过该预设阈值的情况下，不能对该报文进行MAC地址学习。
可选地，在本实施例中，上述存储介质可以包括但不限于：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
可选地，在本实施例中，处理器根据存储介质中已存储的程序代码执行上述实施例的方 法步骤。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，可选地，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
工业实用性
如上所述，本发明实施例提供的一种MAC地址处理方法及装置，具有以下有益效果：解决了MAC学习超限后丢弃的报文无法反馈用户以及报文的处理方式单一的问题，实现了用户的监控和报文的灵活处理。

Claims (11)

  1. 一种MAC地址处理方法，包括：
    统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量；
    在所述MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃，其中，所述MAC地址的数量超过所述预设阈值的情况下，不能对所述报文进行MAC地址学习。
  2. 根据权利要求1所述的方法，其中，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量之前，包括：
    配置所述预设阈值和所述优先级。
  3. 根据权利要求1所述的方法，其中，依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃之前，包括：
    获取控制开关信息，其中，所述控制开关信息用于指示是否触发依据设置的所述报文的优先级对超过预设阈值所述报文转发或者丢弃。
  4. 根据权利要求1所述的方法，其中，依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃之前，还包括，
    以报文的基本信息为索引在预先存储的报文中查找所述报文，所述预先存储的报文为所述数量超过所述预设阈值后接收的报文，所述基本信息包括：MAC地址，所述优先级以及局域网号。
  5. 根据权利要求4所述的方法，其中，包括，
    在预设老化时间到达时，更新所述预先存储的报文的老化标志位，所述老化标志位用于指示将所述报文的MAC地址从所述存储的所述报文中删除或者保留。
  6. 一种MAC地址处理装置，包括：
    统计模块，设置为统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量；
    处理模块，设置为在所述MAC地址学习的数量超过预设阈值的情况下，依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃，其中，所述MAC地址的数量超过所述预设阈值的情况下，不能对所述报文进行MAC地址学习。
  7. 根据权利要求6所述的装置，包括：
    配置模块，设置为接收报文，统计接收的报文已经媒体访问控制MAC地址学习的MAC地址的数量之前，配置所述预设阈值和所述优先级。
  8. 根据权利要求6所述的装置，包括：
    控制模块，设置为依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃之前，获取控制开关信息，其中，所述控制开关信息用于指示是否触发依据设置的所述报文的优先级对超过预设阈值所述报文转发或者丢弃。
  9. 根据权利要求6所述的装置，其中，还包括，
    索引模块，设置为依据预先设置的报文优先级对超过所述预设阈值后的报文转发或者丢弃之前，以报文的基本信息为索引在预先存储的报文中查找所述报文，所述预先存储的报文为所述数量超过所述预设阈值后接收的报文，所述基本信息包括：MAC地址，所述优先级以及局域网号。
  10. 根据权利要求9所述的装置，其中，包括，
    更新模块，设置为在预设老化时间到达时，更新所述预先存储的报文的老化标志位，所述老化标志位用于指示将所述报文的MAC地址从所述存储的所述报文中删除或者保留。
  11. 一种计算机存储介质，设置为存储用于执行如权利要求1至5中任一项所述的方法的计算机程序。
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