WO2017000714A1 - 一种端口扩展方法、装置及存储介质 - Google Patents

一种端口扩展方法、装置及存储介质 Download PDF

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Publication number
WO2017000714A1
WO2017000714A1 PCT/CN2016/083548 CN2016083548W WO2017000714A1 WO 2017000714 A1 WO2017000714 A1 WO 2017000714A1 CN 2016083548 W CN2016083548 W CN 2016083548W WO 2017000714 A1 WO2017000714 A1 WO 2017000714A1
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chip
extended
port
destination
source
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French (fr)
Inventor
陈昌胜
廖智勇
朱海英
徐金林
刘衡祁
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Sanechips Technology Co Ltd
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Sanechips Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L49/00—Packet switching elements
    • H04L49/45—Arrangements for providing or supporting expansion

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  • the present invention relates to a hybrid networking related technology of a multi-generation router/switch in the communication field, and in particular, to a port expansion method, device, and storage medium.
  • a network processor In a route switching system, a network processor (NP, Network Processer) usually divides packets into services, and then inputs them to the source switching chip to search for outbound port mapping tables according to different services to implement forwarding of services to different destination switching chips; however, In a hybrid network where multiple generations of routing switching devices coexist, the early design of the switching chip supports fewer mapped outgoing ports due to different requirements, and cannot be fully compatible with the new switching device. Therefore, the hybrid networking switching system is limited by the oldest switching. The port supported by the chip has low device usage.
  • a port expansion solution is provided, which can solve the problem of low device usage caused by the outbound port limitation, and improve the port range supported by the system when the multi-generation switch chip is mixed.
  • the embodiment of the present invention is to provide a port expansion method, device, and storage medium, which can solve the problem that the device usage rate is low due to the limitation of the outgoing port, and improve the port supported by the system when the multi-generation switch chip is mixed and connected. range.
  • An embodiment of the present invention provides a port extension method, where the method includes:
  • the port extension mode is used to instruct the destination switch chip to map the outbound port to the destination outbound port.
  • the determining the source switching chip to be extended in the current routing switching system networking includes:
  • the range of the outbound ports supported by the switch chip determines the source switch chip to be extended in the source switch chip according to the range of the outbound ports supported by each switch chip.
  • the method further includes:
  • the destination outgoing port information of the NP descriptor carrying packet service corresponding to the access side of the source switching chip to be extended includes:
  • the destination outgoing port information of the EPF carrying packet service in the NP descriptor of the access side of the to-be-expanded source switching chip is configured.
  • the method further includes:
  • the working mode of the source switching chip to be extended is a normal mode; the normal mode is used to indicate that the source switching chip to be extended acquires the corresponding destination switching chip and the destination outgoing port information according to the exchange descriptor of the packet service. .
  • the embodiment of the present invention further provides a port expansion device, where the device includes: a determination module, a first configuration module, and a second configuration module;
  • the determining module is configured to determine a source switching chip to be extended in the current routing switching system networking;
  • the first configuration module is configured to configure destination outgoing port information of the NP descriptor carrying packet service corresponding to the access side of the source switching chip to be extended;
  • the second configuration module is configured to configure an operation mode of the destination switch chip corresponding to the source switching chip to be extended to be a port extension mode, where the port extension mode is used to indicate that the destination switch chip maps an outbound port to the port The destination is where the port is located.
  • the determining module is configured to determine, according to the current packet service, a source switching chip corresponding to the packet service in the current routing switching system network, and read corresponding to each switching chip in the current routing switching system networking.
  • the chip identifier is obtained according to the chip identifier, and the range of the outbound port supported by each switch chip is obtained, and the source switch chip to be extended in the source switch chip is determined according to the range of the outbound port supported by each switch chip.
  • the determining module is further configured to determine an EPF of the NP descriptor corresponding to the access side of the source switching chip to be extended.
  • the first configuration module is configured to configure the destination outgoing port information of the EPF carrying packet service in the NP descriptor of the access side of the source switching chip to be extended.
  • the second configuration module is further configured to configure an operation mode of the source switching chip to be extended to be a normal mode, where the normal mode is used to indicate that the source switching chip to be extended is in accordance with the packet service.
  • the exchange descriptor acquires the corresponding destination switch chip and the destination outgoing port information.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program configured to execute the port extension method of the embodiment of the present invention.
  • the port extension method, device, and storage medium provided by the embodiments of the present invention determine the source switching chip to be extended in the current routing switching system network; and configure the NP descriptor carrying message corresponding to the access side of the source switching chip to be extended.
  • the purpose of the service is the outbound port information;
  • the working mode of the destination switching chip corresponding to the source switching chip to be extended is a port extension mode;
  • the port expansion The mode is used to indicate that the destination switch chip maps the outbound port to the destination outbound port.
  • FIG. 1 is a schematic flowchart of a port expansion method according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of networking of a routing switching system according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a network processor descriptor according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a method for expanding a port according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a port expansion apparatus according to an embodiment of the present invention.
  • determining the source switching chip to be extended in the current routing switching system networking configuring the destination outgoing port information of the NP descriptor carrying the packet service corresponding to the access side to be extended by the source switching chip;
  • the working mode of the destination switch chip corresponding to the extended source switch chip is a port extension mode, and the port extension mode is used to indicate that the destination switch chip maps the outbound port to the destination outbound port.
  • FIG. 1 is a schematic flowchart of a port expansion method according to an embodiment of the present invention. As shown in FIG. 1 , a port extension method according to an embodiment of the present invention includes:
  • Step 101 Determine a source switching chip to be extended in the current routing switching system networking
  • the method includes: determining, according to the current packet service, a source switching chip corresponding to the packet service in the current routing switching system network, and reading a chip identifier corresponding to each switching chip in the current routing switching system networking, according to the chip Identifying an outbound port range supported by each switch chip, and determining a source switch chip to be extended in the source switch chip according to an outbound port range supported by each switch chip;
  • the source switching chip corresponding to the packet service in the current routing switching system network according to the current packet service includes:
  • the source switching chip corresponding to the packet service in the current routing switching system networking is determined according to the routing information table of the current packet service.
  • the method further includes: determining a destination switching chip corresponding to the source switching chip.
  • the packet service may be one or more; the chip identifier may be an ID (Identification); and the route switching system may be an Internet Protocol (IP) routing switching system.
  • ID Identity
  • IP Internet Protocol
  • the obtaining the range of the outbound port supported by each switch chip according to the chip identifier includes:
  • Determining, according to the outbound port range supported by each switch chip, the source switch chip to be extended in the source switch chip includes:
  • FIG. 2 is a schematic diagram of a network of a routing switching system according to an embodiment of the present invention.
  • the current routing switching system includes three switching chips V1, V2, and V3.
  • the outbound port range supported by the switching chip V1 is 0. ⁇ N
  • the switch-out port V2 supports an outbound port range of 0 to M
  • the switch chip V3 supports an outbound port range of 0 to K, N ⁇ M ⁇ K
  • the current outgoing switch port network supports a maximum outbound port range of 0. ⁇ K
  • the switch chip V1 and the switch chip V3 are source switch chips, it is determined that the switch chip V1 is the source switch chip to be extended.
  • the method further includes: determining an interface extension bit (EPF) of the NP descriptor of the access side of the source switching chip to be extended;
  • EPF interface extension bit
  • the NP descriptor is only used in a network processor for carrying a service protocol, a message type, routing information, etc.; the NP descriptor is processed as payload content when being forwarded by the switching system, and its content is exchanged
  • the chip is private content;
  • Determining the EPF of the NP descriptor corresponding to the access side of the source switching chip to be extended includes:
  • FIG. 3 is a schematic diagram of an NP descriptor according to an embodiment of the present invention; wherein 31 is a reserved bit segment of the NP descriptor, 32 is a custom bit segment of the NP descriptor; and the NP descriptor is self-defined
  • the definition bit segment is used to carry service flow information and the like, and is private information for the switch chip;
  • the EPF occupies a reserved bit segment of the NP descriptor, the EPF is non-payload for the switch chip and the subsequent outgoing NP is no longer used.
  • Step 102 Configure the destination outgoing port information of the NP descriptor carrying the packet service corresponding to the access side of the source switching chip to be extended;
  • the step of the present invention includes: configuring the destination outgoing port information of the EPF carrying packet service in the NP descriptor of the access side of the source switching chip to be extended; and: obtaining the packet according to the routing information table of the packet service
  • the outgoing port information of the service, and the outgoing port information is configured as the EPF information in the NP descriptor of the access side of the source switching chip to be extended.
  • Step 103 Configure an operation mode of the destination switching chip corresponding to the source switching chip to be extended to be a port extension mode.
  • the method further includes: configuring an operating mode of the source switching chip to be extended to be a normal mode;
  • the normal mode is used to indicate that the source switching chip to be extended acquires the corresponding destination switching chip and the destination outgoing port information according to the exchange descriptor of the packet service;
  • the exchange descriptor of the message service is a description of the input from the NP to the source switch chip. , used to carry service flow information, etc., used only in the switching system, when the message is output from the switch chip to the outgoing network processor, it will be automatically stripped;
  • the source switching chip to be extended obtains the corresponding destination switching chip and the destination outgoing port information according to the exchange descriptor of the packet service, including:
  • the source switching chip to be extended searches for the destination switching chip corresponding to the packet service and the destination outgoing port information according to the exchange descriptor of the packet service.
  • the method further includes: configuring the other source switching chip of the current routing switching system network source switching chip except the source switching chip to be extended, while configuring the working mode of the source switching chip to be extended
  • the working mode is normal mode.
  • the port extension mode is used to indicate that the destination switch chip maps the outbound port to the destination outbound port; the destination outbound port is the EPF, and the outbound port is mapped to the port.
  • the EPF is further analyzed to obtain the destination outgoing port number carried by the EPT; that is, when the working mode of the destination switching chip corresponding to the source switching chip to be extended is the port extended mode, the destination switching chip is no longer According to the outbound port obtained by the source switch chip using the exchange descriptor index of the packet service, the EPF information is directly used for mapping; thus, port expansion is implemented without affecting the service flow.
  • FIG. 4 is a schematic flowchart of a method for expanding a port according to an embodiment of the present invention. As shown in FIG. 4, a method for extending a port according to an embodiment of the present invention includes:
  • Step 401 Determine whether there is a source switching chip to be extended in the current routing switching system networking, if yes, go to step 402; if not, go to step 401;
  • the method includes: determining, according to the current packet service, a source switching chip corresponding to the packet service in the current routing switching system network, and reading a chip identifier corresponding to each switching chip in the current routing switching system networking, according to the chip Identifying an outbound port range supported by each switch chip, and determining whether the source switch chip is stored according to an outbound port range supported by each switch chip
  • the source switching chip to be extended;
  • the source switching chip corresponding to the packet service in the current routing switching system network according to the current packet service includes:
  • the source switching chip corresponding to the packet service in the current routing switching system networking is determined according to the routing information table of the current packet service.
  • the method further includes: determining a destination switching chip corresponding to the source switching chip.
  • the packet service may have one or more; the chip identifier may be a switch chip ID; and the route switching system may be an IP route switching system.
  • the obtaining the range of the outbound port supported by each switch chip according to the chip identifier includes:
  • Determining, according to the outbound port range supported by each switch chip, the source switch chip to be extended in the source switch chip includes:
  • the switch chip V1 supports an outbound port range of 0 to N
  • the switch chip V2 supports an outbound port range of 0 to M
  • the switch chip V3 supports an outbound port range of 0. ⁇ K, N ⁇ M ⁇ K
  • the maximum outgoing port range supported by the current routing switching system networking is 0 to K. If the switching chip V1 and the switching chip V3 are source switching chips, it is determined that the switching chip V1 is the source to be extended. chip.
  • Step 402 Determine an EPF of the NP descriptor corresponding to the access side of the source switching chip to be extended.
  • the NP descriptor is only used in a network processor for carrying a service protocol, a message type, routing information, etc.; the NP descriptor is processed as payload content when being forwarded by the switching system, and its content is exchanged
  • the chip is private content;
  • Determining the EPF of the NP descriptor corresponding to the access side of the source switching chip to be extended includes:
  • FIG. 3 is a schematic diagram of an NP descriptor according to an embodiment of the present invention; wherein 31 is a reserved bit segment of the NP descriptor, 32 is a custom bit segment of the NP descriptor; and the NP descriptor is self-defined
  • the definition bit segment is used to carry service flow information and the like, and is private information for the switch chip;
  • the EPF occupies a reserved bit segment of the NP descriptor, the EPF is non-payload for the switch chip and the subsequent outgoing NP is no longer used.
  • Step 403 Configure the destination outgoing port information of the EPF carrying packet service in the NP descriptor of the access side to be extended by the source switching chip to be extended;
  • Step 404 Configure the working mode of the source switching chip in the current routing switching system networking to be a normal mode.
  • the normal mode is used to instruct the source switching chip to obtain a corresponding destination switching chip and destination outgoing port information according to the exchange descriptor of the packet service;
  • the exchange descriptor of the message service is a descriptor input by the NP to the source switch chip, used to carry service flow information, etc., and is used only in the switching system, when the message is output from the switch chip to the outgoing network processor. Will peel off automatically;
  • the source switching chip acquires a corresponding destination exchange according to the exchange descriptor of the packet service.
  • Chip and destination outgoing port information including:
  • the source switching chip searches for the destination switching chip corresponding to the packet service and the destination outgoing port information to the destination mapping table according to the exchange descriptor of the packet service.
  • Step 405 Configure an operation mode of the destination switch chip corresponding to the source switching chip to be extended to be a port extension mode.
  • the port extension mode is used to indicate that the destination switch chip maps the outbound port to the destination outbound port; the destination outbound port is the EPF, and the outbound port is mapped to the EPF, and further Obtaining the destination outgoing port number carried by the EPT; that is, when the working mode of the destination switching chip corresponding to the source switching chip to be extended is the port extended mode, the destination switching chip is no longer based on the source switching chip.
  • the outbound port obtained by using the exchange descriptor index of the packet service is mapped, and the EPF information is directly used for mapping.
  • the port expansion apparatus of the embodiment of the present invention includes: a determination module 51, a first configuration module 52, and a second configuration module 53;
  • the determining module 51 is configured to determine a source switching chip to be extended in the current routing switching system networking;
  • the first configuration module 52 is configured to configure destination outgoing port information of the NP descriptor carrying packet service corresponding to the access side of the source switching chip to be extended;
  • the second configuration module 53 is configured to configure a working mode of the destination switching chip corresponding to the source switching chip to be extended to be a port extension mode.
  • the port extension mode is used to instruct the destination switching chip to map an outbound port to a location where the destination outgoing port is located.
  • the determining module 51 is configured to determine according to the current packet service.
  • the source switch chip corresponding to the packet service in the network of the pre-route switching system reads the chip identifier corresponding to each switch chip in the current routing switch system network, and obtains the range of the outbound port supported by each switch chip according to the chip identifier. Determining, according to an outbound port range supported by each switch chip, a source switch chip to be extended in the source switch chip;
  • the packet service may have one or more;
  • the chip identifier may be a switch chip ID; and the route switching system may be an IP route switching system;
  • the determining module 51 determines, according to the current packet service, a source switching chip corresponding to the packet service in the current routing switching system networking, including:
  • the determining module 51 determines, according to the routing information table of the current packet service, a source switching chip corresponding to the packet service in the current routing switching system networking;
  • the obtaining module 51 obtains an outbound port range supported by each switch chip according to the chip identifier, including:
  • the determining module 51 determines the level of the corresponding switch chip according to the chip identifier, and searches for the switch chip information table according to the level of each switch chip to obtain the range of the outbound port supported by each switch chip;
  • the determining module 51 determines, according to the outbound port range supported by each switch chip, the source switching chip to be extended in the source switching chip, including:
  • the determining module 51 determines, according to the outbound port range supported by each switch chip, the maximum outbound port range supported by the current routing switching system network, and determines that the outbound port range supported by the source switching chip is smaller than the maximum outbound port range.
  • the chip is a source switching chip to be extended; as shown in FIG. 2 is a schematic diagram of a network of a routing switching system according to an embodiment of the present invention.
  • the current routing switching system network includes three switching chips V1, V2, and V3; wherein, the switching chip V1 supports The range of the outbound port is 0 to N, the range of the outbound port supported by the switch chip V2 is 0 to M, and the range of the outbound port supported by the switch chip V3 is 0 to K, N ⁇ M ⁇ K; The outbound port range is 0 to K. If the switch chip V1 and the switch chip V3 are source switch chips, then It is determined that the switch chip V1 is the source switch chip to be extended.
  • the determining module 51 is further configured to determine a destination switching chip corresponding to the source switching chip.
  • the determining module 51 is further configured to determine an EPF of the NP descriptor corresponding to the access side of the source switching chip to be extended;
  • the NP descriptor is only used in a network processor for carrying a service protocol, a message type, routing information, etc.; the NP descriptor is processed as payload content when being forwarded by the switching system, and its content is exchanged
  • the chip is private content;
  • the determining module 51 is configured to select part or all of the reserved bit segments of the NP descriptor corresponding to the access side of the source switching chip to be extended as the EPF; the EPF is used to carry the destination outgoing port information of the packet service.
  • the size of the EPF can be selected according to actual conditions; as shown in FIG. 3 is a schematic diagram of an NP descriptor according to an embodiment of the present invention; wherein 31 is a reserved bit segment of the NP descriptor, and 32 is a custom bit segment of the NP descriptor.
  • the custom bit segment of the NP descriptor is used to carry service flow information and the like, and is private information for the switch chip.
  • the first configuration module 52 is configured to configure destination outgoing port information of the EPF carrying packet service in the NP descriptor of the access side of the source switching chip to be extended;
  • the first configuration module 52 is configured to obtain the outbound port information of the packet service according to the routing information table of the packet service, and configure the outbound port information to be corresponding to the source switch chip to be extended. EPF information in the side NP descriptor.
  • the second configuration module 53 is further configured to configure an operation mode of the source switching chip to be extended to be a normal mode, where the normal mode is used to indicate that the source switching chip to be extended is in accordance with the report.
  • the exchange descriptor of the text service obtains the corresponding destination switch chip and the destination outgoing port information;
  • the exchange descriptor of the message service is a descriptor input by the NP to the source switch chip, used to carry service flow information, etc., and is used only in the switching system, when the message is transmitted from the switch chip. Automatically stripped when going out to the network processor;
  • the source switching chip to be extended obtains the corresponding destination switching chip and the destination outgoing port information according to the exchange descriptor of the packet service, including:
  • the source switching chip to be extended searches for the destination switching chip corresponding to the packet service and the destination outgoing port information according to the exchange descriptor of the packet service.
  • the second configuration module 53 is further configured to configure an operation mode of the other source switching chips of the current routing switching system network source switching chip except the source switching chip to be extended to a normal mode.
  • the port extension mode is used to indicate that the destination switch chip maps the outbound port to the destination outbound port; the destination outbound port is the EPF, and the outbound port is mapped to the port.
  • the EPF is further analyzed to obtain the destination outgoing port number carried by the EPT; that is, when the working mode of the destination switching chip corresponding to the source switching chip to be extended is the port extended mode, the destination switching chip is no longer According to the outbound port obtained by the source switch chip using the exchange descriptor index of the packet service, the EPF information is directly used for mapping; thus, port expansion is implemented without affecting the service flow.
  • the determining module 51, the first configuration module 52, and the second configuration module 53 may each be a central processing unit (CPU) or a digital signal processor (DSP, Digital) in the terminal or server. Signal Processor), or Field Programmable Gate Array (FPGA), or Application Specific Integrated Circuit (ASIC).
  • CPU central processing unit
  • DSP digital signal processor
  • FPGA Field Programmable Gate Array
  • ASIC Application Specific Integrated Circuit
  • the port expansion method is implemented in the form of a software function module and sold or used as a stand-alone product, it may also be stored in a computer readable storage medium.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. Enabling a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods of the various embodiments of the present invention All or part.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program, and the computer program is used to execute the port expansion method of the embodiment of the present invention.
  • the source switching chip to be extended in the current routing switching system networking is determined; the destination outgoing port information of the NP descriptor carrying the packet service corresponding to the access side of the to-be-expanded source switching chip is configured;
  • the working mode of the destination switch chip corresponding to the extended source switch chip is a port extension mode.
  • the port extension mode is used to indicate that the destination switch chip maps the outbound port to the destination outbound port.

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Abstract

本发明公开了一种端口扩展方法，所述方法包括：确定当前路由交换系统组网中的待扩展源交换芯片；配置所述待扩展源交换芯片对应接入侧的网络处理器(NP)描述符携带报文业务的目的出向端口信息；配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式；所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置。本发明还公开了一种端口扩展装置及存储介质。

Description

一种端口扩展方法、装置及存储介质 技术领域
本发明涉及通信领域中多代路由器/交换机的混合组网相关技术，尤其涉及一种端口扩展方法、装置及存储介质。
背景技术
在路由交换系统中，通常由网络处理器(NP，Network Processer)将报文进行业务区分，然后输入至源交换芯片中依据不同业务查找出向端口映射表实现业务转发至不同目的交换芯片；然而，在多代路由交换设备共存的混合网络中，早期设计的交换芯片因需求差异而支持映射出向端口较少，不能与新的交换设备完全兼容，因此混合组网交换系统受限于最老的交换芯片支持的端口，设备使用率低下。
因此，提供一种端口扩展方案，能够解决因为出向端口限制导致的设备使用率低的问题，提高多代交换芯片混插组网时系统支持的端口范围。
发明内容
有鉴于此，本发明实施例期望提供一种端口扩展方法、装置及存储介质，能够解决因为出向端口限制导致的设备使用率低的问题，提高多代交换芯片混插组网时系统支持的端口范围。
为达到上述目的，本发明实施例的技术方案是这样实现的：
本发明实施例提供了一种端口扩展方法，所述方法包括：
确定当前路由交换系统组网中的待扩展源交换芯片；
配置所述待扩展源交换芯片对应接入侧的网络处理器NP描述符携带报文业务的目的出向端口信息；
配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩 展模式；所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置。
上述方案中，所述确定当前路由交换系统组网中的待扩展源交换芯片包括：
依据当前的报文业务确定当前路由交换系统组网中对应所述报文业务的源交换芯片，读取当前路由交换系统组网中各个交换芯片对应的芯片标识，依据所述芯片标识获取每个交换芯片支持的出向端口范围，依据每个交换芯片支持的出向端口范围确定所述源交换芯片中待扩展源交换芯片。
上述方案中，所述确定当前路由交换系统组网中的待扩展源交换芯片之后，所述方法还包括：
确定所述待扩展源交换芯片对应接入侧的NP描述符的端口扩展位EPF。
上述方案中，所述配置所述待扩展源交换芯片对应接入侧的NP描述符携带报文业务的目的出向端口信息包括：
配置所述待扩展源交换芯片对应接入侧的NP描述符中的EPF携带报文业务的目的出向端口信息。
上述方案中，所述配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式之前，所述方法还包括：
配置所述待扩展源交换芯片的工作模式为正常模式；所述正常模式用于指示所述待扩展源交换芯片依据所述报文业务的交换描述符获取对应的目的交换芯片及目的出向端口信息。
本发明实施例还提供了一种端口扩展装置，所述装置包括：确定模块、第一配置模块及第二配置模块；其中，
所述确定模块，配置为确定当前路由交换系统组网中的待扩展源交换芯片；
所述第一配置模块，配置为配置所述待扩展源交换芯片对应接入侧的NP描述符携带报文业务的目的出向端口信息；
所述第二配置模块，配置为配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式；所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置。
上述方案中，所述确定模块，配置为依据当前的报文业务确定当前路由交换系统组网中对应所述报文业务的源交换芯片，读取当前路由交换系统组网中各个交换芯片对应的芯片标识，依据所述芯片标识获取每个交换芯片支持的出向端口范围，依据每个交换芯片支持的出向端口范围确定所述源交换芯片中待扩展源交换芯片。
上述方案中，所述确定模块，还配置为确定所述待扩展源交换芯片对应接入侧的NP描述符的EPF。
上述方案中，所述第一配置模块，配置为配置所述待扩展源交换芯片对应接入侧的NP描述符中的EPF携带报文业务的目的出向端口信息。
上述方案中，所述第二配置模块，还配置为配置所述待扩展源交换芯片的工作模式为正常模式；所述正常模式用于指示所述待扩展源交换芯片依据所述报文业务的交换描述符获取对应的目的交换芯片及目的出向端口信息。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质存储有计算机程序，该计算机程序配置为执行本发明实施例的上述端口扩展方法。
本发明实施例所提供的端口扩展方法、装置及存储介质，确定当前路由交换系统组网中的待扩展源交换芯片；配置所述待扩展源交换芯片对应接入侧的NP描述符携带报文业务的目的出向端口信息；配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式；所述端口扩展 模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置。如此，能够解决因为出向端口限制导致的设备使用率低的问题，提高多代交换芯片混插组网时系统支持的端口范围，且实现简单、可靠性高。
附图说明
图1为本发明实施例一端口扩展方法流程示意图；
图2为本发明实施例路由交换系统组网示意图；
图3为本发明实施例网络处理器描述符示意图；
图4为本发明实施例二端口扩展方法流程示意图；
图5为本发明实施例端口扩展装置组成结构示意图。
具体实施方式
在本发明实施例中，确定当前路由交换系统组网中的待扩展源交换芯片；配置所述待扩展源交换芯片对应接入侧的NP描述符携带报文业务的目的出向端口信息；配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式；所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置。
实施例一
图1为本发明实施例一端口扩展方法流程示意图；如图1所示，本发明实施例端口扩展方法包括：
步骤101：确定当前路由交换系统组网中的待扩展源交换芯片；
本步骤包括：依据当前的报文业务确定当前路由交换系统组网中对应所述报文业务的源交换芯片，读取当前路由交换系统组网中各个交换芯片对应的芯片标识，依据所述芯片标识获取每个交换芯片支持的出向端口范围，依据每个交换芯片支持的出向端口范围确定所述源交换芯片中待扩展源交换芯片；
这里，所述依据当前的报文业务确定当前路由交换系统组网中对应所述报文业务的源交换芯片包括：
依据当前的报文业务的路由信息表确定当前路由交换系统组网中对应所述报文业务的源交换芯片。
所述确定当前路由交换系统组网中对应所述报文业务的源交换芯片的同时，所述方法还包括：确定对应所述源交换芯片的目的交换芯片。
所述报文业务可以有一个或多个；所述芯片标识可以为交换芯片身份标识(ID，Identification)；所述路由交换系统可以为网络协议(IP，Internet Protocol)路由交换系统。
所述依据所述芯片标识获取每个交换芯片支持的出向端口范围包括：
依据所述芯片标识确定对应交换芯片的等级，依据每个交换芯片的等级查找交换芯片信息表获得每个交换芯片支持的出向端口范围。
所述依据每个交换芯片支持的出向端口范围确定所述源交换芯片中待扩展源交换芯片包括：
依据每个交换芯片支持的出向端口范围确定当前路由交换系统组网支持的最大出向端口范围，确定所述源交换芯片中支持的出向端口范围小于所述最大出向端口范围的交换芯片为待扩展源交换芯片；如图2所示为本发明实施例路由交换系统组网示意图，当前路由交换系统组网中包括三个交换芯片V1、V2及V3；其中，交换芯片V1支持的出向端口范围为0～N，交换芯片V2支持的出向端口范围为0～M，交换芯片V3支持的出向端口范围为0～K，N<M<K；则当前路由交换系统组网支持的最大出向端口范围为0～K，若交换芯片V1及交换芯片V3为源交换芯片，则确定交换芯片V1为待扩展源交换芯片。
本步骤之后，所述方法还包括：确定所述待扩展源交换芯片对应接入侧的NP描述符的端口扩展位(EPF，Expand Port Flag)；
这里，所述NP描述符仅在网络处理器中使用，用于携带业务协议、报文类型、路由信息等；所述NP描述符在由交换系统转发时作为净荷内容处理，其内容对于交换芯片来说为私密内容；
所述确定所述待扩展源交换芯片对应接入侧的NP描述符的EPF包括：
选取所述待扩展源交换芯片对应接入侧的NP描述符的部分或全部保留位段作为EPF；所述EPF用于携带所述报文业务的目的出向端口信息；所述EPF的大小可以依据实际情况进行选取；如图3所示为本发明实施例NP描述符示意图；其中，31为NP描述符的保留位段，32为NP描述符的自定义位段；所述NP描述符的自定义位段用于携带业务流信息等，对于交换芯片来说为私密信息；
这里，由于所述EPF占用的是NP描述符的保留位段，因此所述EPF对于交换芯片来说为非净荷且后续出向NP不再使用。
步骤102：配置所述待扩展源交换芯片对应接入侧的NP描述符携带报文业务的目的出向端口信息；
本步骤包括：配置所述待扩展源交换芯片对应接入侧的NP描述符中的EPF携带报文业务的目的出向端口信息；包括：依据所述报文业务的路由信息表获取所述报文业务的出向端口信息，并将所述出向端口信息配置为所述待扩展源交换芯片对应接入侧的NP描述符中的EPF信息。
步骤103：配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式；
本步骤之前，所述方法还包括：配置所述待扩展源交换芯片的工作模式为正常模式；
所述正常模式用于指示所述待扩展源交换芯片依据所述报文业务的交换描述符获取对应的目的交换芯片及目的出向端口信息；
这里，所述报文业务的交换描述符为由NP输入至源交换芯片的描述 符，用于携带业务流信息等，仅在交换系统中使用，当报文从交换芯片输出至出向网络处理器时会自动剥离；
所述待扩展源交换芯片依据所述报文业务的交换描述符获取对应的目的交换芯片及目的出向端口信息，包括：
所述待扩展源交换芯片依据所述报文业务的交换描述符查找出向目的映射表获得对应所述报文业务的目的交换芯片及目的出向端口信息。
所述配置所述待扩展源交换芯片的工作模式为正常模式的同时，所述方法还包括：配置当前路由交换系统组网源交换芯片中除所述待扩展源交换芯片的其它源交换芯片的工作模式为正常模式。
在一实施例中，所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置；所述目的出向端口所在位置即所述EPF，将出向端口映射至所述EPF，进而解析获得所述EPT携带的目的出向端口号；也就是说，当所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式时，所述目的交换芯片则不再依据源交换芯片利用报文业务的交换描述符索引得到的出向端口进行映射，而是直接利用所述EPF信息进行映射；如此，实现了端口扩展，且不影响业务流。
实施例二
图4为本发明实施例二端口扩展方法流程示意图；如图4所示，本发明实施例端口扩展方法包括：
步骤401：判断当前路由交换系统组网中是否存在待扩展源交换芯片，如果存在，执行步骤402；如果不存在，执行步骤401；
本步骤包括：依据当前的报文业务确定当前路由交换系统组网中对应所述报文业务的源交换芯片，读取当前路由交换系统组网中各个交换芯片对应的芯片标识，依据所述芯片标识获取每个交换芯片支持的出向端口范围，依据每个交换芯片支持的出向端口范围判断所述源交换芯片中是否存 在待扩展源交换芯片；
这里，所述依据当前的报文业务确定当前路由交换系统组网中对应所述报文业务的源交换芯片包括：
依据当前的报文业务的路由信息表确定当前路由交换系统组网中对应所述报文业务的源交换芯片。
所述确定当前路由交换系统组网中对应所述报文业务的源交换芯片的同时，所述方法还包括：确定对应所述源交换芯片的目的交换芯片。
所述报文业务可以有一个或多个；所述芯片标识可以为交换芯片ID；所述路由交换系统可以为IP路由交换系统。
所述依据所述芯片标识获取每个交换芯片支持的出向端口范围包括：
依据所述芯片标识确定对应交换芯片的等级，依据每个交换芯片的等级查找交换芯片信息表获得每个交换芯片支持的出向端口范围。
所述依据每个交换芯片支持的出向端口范围判断所述源交换芯片中待扩展源交换芯片包括：
依据每个交换芯片支持的出向端口范围确定当前路由交换系统组网支持的最大出向端口范围，判断所述源交换芯片中是否存在支持的出向端口范围小于所述最大出向端口范围的交换芯片，如果存在，则所述支持的出向端口范围小于所述最大出向端口范围的交换芯片为待扩展源交换芯片；如图2所示为本发明实施例路由交换系统组网示意图，当前路由交换系统组网中包括三个交换芯片V1、V2及V3；其中，交换芯片V1支持的出向端口范围为0～N，交换芯片V2支持的出向端口范围为0～M，交换芯片V3支持的出向端口范围为0～K，N<M<K；则当前路由交换系统组网支持的最大出向端口范围为0～K，若交换芯片V1及交换芯片V3为源交换芯片，则确定交换芯片V1为待扩展源交换芯片。
步骤402：确定所述待扩展源交换芯片对应接入侧的NP描述符的EPF；
这里，所述NP描述符仅在网络处理器中使用，用于携带业务协议、报文类型、路由信息等；所述NP描述符在由交换系统转发时作为净荷内容处理，其内容对于交换芯片来说为私密内容；
所述确定所述待扩展源交换芯片对应接入侧的NP描述符的EPF包括：
选取所述待扩展源交换芯片对应接入侧的NP描述符的部分或全部保留位段作为EPF；所述EPF用于携带所述报文业务的目的出向端口信息；所述EPF的大小可以依据实际情况进行选取；如图3所示为本发明实施例NP描述符示意图；其中，31为NP描述符的保留位段，32为NP描述符的自定义位段；所述NP描述符的自定义位段用于携带业务流信息等，对于交换芯片来说为私密信息；
这里，由于所述EPF占用的是NP描述符的保留位段，因此所述EPF对于交换芯片来说为非净荷且后续出向NP不再使用。
步骤403：配置所述待扩展源交换芯片对应接入侧的NP描述符中的EPF携带报文业务的目的出向端口信息；
本步骤包括：依据所述报文业务的路由信息表获取所述报文业务的出向端口信息，并将所述出向端口信息配置为所述待扩展源交换芯片对应接入侧的NP描述符中的EPF信息。
步骤404：配置当前路由交换系统组网中源交换芯片的工作模式为正常模式；
这里，所述正常模式用于指示所述源交换芯片依据所述报文业务的交换描述符获取对应的目的交换芯片及目的出向端口信息；
这里，所述报文业务的交换描述符为由NP输入至源交换芯片的描述符，用于携带业务流信息等，仅在交换系统中使用，当报文从交换芯片输出至出向网络处理器时会自动剥离；
所述源交换芯片依据所述报文业务的交换描述符获取对应的目的交换 芯片及目的出向端口信息，包括：
所述源交换芯片依据所述报文业务的交换描述符查找出向目的映射表获得对应所述报文业务的目的交换芯片及目的出向端口信息。
步骤405：配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式；
这里，所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置；所述目的出向端口所在位置即所述EPF，将出向端口映射至所述EPF，进而解析获得所述EPT携带的目的出向端口号；也就是说，当所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式时，所述目的交换芯片则不再依据源交换芯片利用报文业务的交换描述符索引得到的出向端口进行映射，而是直接利用所述EPF信息进行映射。
实施例三
图5为本发明实施例端口扩展装置组成结构示意图；如图5所示，本发明实施例端口扩展装置组成包括：确定模块51、第一配置模块52及第二配置模块53；其中，
所述确定模块51，配置为确定当前路由交换系统组网中的待扩展源交换芯片；
所述第一配置模块52，配置为配置所述待扩展源交换芯片对应接入侧的NP描述符携带报文业务的目的出向端口信息；
所述第二配置模块53，配置为配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式；
这里，所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置。
在一实施例中，所述确定模块51，配置为依据当前的报文业务确定当 前路由交换系统组网中对应所述报文业务的源交换芯片，读取当前路由交换系统组网中各个交换芯片对应的芯片标识，依据所述芯片标识获取每个交换芯片支持的出向端口范围，依据每个交换芯片支持的出向端口范围确定所述源交换芯片中待扩展源交换芯片；
这里，所述报文业务可以有一个或多个；所述芯片标识可以为交换芯片ID；所述路由交换系统可以为IP路由交换系统；
其中，所述确定模块51依据当前的报文业务确定当前路由交换系统组网中对应所述报文业务的源交换芯片，包括：
所述确定模块51依据当前的报文业务的路由信息表确定当前路由交换系统组网中对应所述报文业务的源交换芯片；
所述确定模块51依据所述芯片标识获取每个交换芯片支持的出向端口范围包括：
所述确定模块51依据所述芯片标识确定对应交换芯片的等级，依据每个交换芯片的等级查找交换芯片信息表获得每个交换芯片支持的出向端口范围；
所述确定模块51依据每个交换芯片支持的出向端口范围确定所述源交换芯片中待扩展源交换芯片包括：
所述确定模块51依据每个交换芯片支持的出向端口范围确定当前路由交换系统组网支持的最大出向端口范围，确定所述源交换芯片中支持的出向端口范围小于所述最大出向端口范围的交换芯片为待扩展源交换芯片；如图2所示为本发明实施例路由交换系统组网示意图，当前路由交换系统组网中包括三个交换芯片V1、V2及V3；其中，交换芯片V1支持的出向端口范围为0～N，交换芯片V2支持的出向端口范围为0～M，交换芯片V3支持的出向端口范围为0～K，N<M<K；则当前路由交换系统组网支持的最大出向端口范围为0～K，若交换芯片V1及交换芯片V3为源交换芯片，则 确定交换芯片V1为待扩展源交换芯片。
在一实施例中，所述确定模块51，还配置为确定对应所述源交换芯片的目的交换芯片。
在一实施例中，所述确定模块51，还配置为确定所述待扩展源交换芯片对应接入侧的NP描述符的EPF；
这里，所述NP描述符仅在网络处理器中使用，用于携带业务协议、报文类型、路由信息等；所述NP描述符在由交换系统转发时作为净荷内容处理，其内容对于交换芯片来说为私密内容；
所述确定模块51，配置为选取所述待扩展源交换芯片对应接入侧的NP描述符的部分或全部保留位段作为EPF；所述EPF用于携带所述报文业务的目的出向端口信息；所述EPF的大小可以依据实际情况进行选取；如图3所示为本发明实施例NP描述符示意图；其中，31为NP描述符的保留位段，32为NP描述符的自定义位段；所述NP描述符的自定义位段用于携带业务流信息等，对于交换芯片来说为私密信息。
在一实施例中，所述第一配置模块52，配置为配置所述待扩展源交换芯片对应接入侧的NP描述符中的EPF携带报文业务的目的出向端口信息；
所述第一配置模块52，配置为依据所述报文业务的路由信息表获取所述报文业务的出向端口信息，并将所述出向端口信息配置为所述待扩展源交换芯片对应接入侧的NP描述符中的EPF信息。
在一实施例中，所述第二配置模块53，还配置为配置所述待扩展源交换芯片的工作模式为正常模式；所述正常模式用于指示所述待扩展源交换芯片依据所述报文业务的交换描述符获取对应的目的交换芯片及目的出向端口信息；
这里，所述报文业务的交换描述符为由NP输入至源交换芯片的描述符，用于携带业务流信息等，仅在交换系统中使用，当报文从交换芯片输 出至出向网络处理器时会自动剥离；
所述待扩展源交换芯片依据所述报文业务的交换描述符获取对应的目的交换芯片及目的出向端口信息，包括：
所述待扩展源交换芯片依据所述报文业务的交换描述符查找出向目的映射表获得对应所述报文业务的目的交换芯片及目的出向端口信息。
所述第二配置模块53，还配置为配置当前路由交换系统组网源交换芯片中除所述待扩展源交换芯片的其它源交换芯片的工作模式为正常模式。
在一实施例中，所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置；所述目的出向端口所在位置即所述EPF，将出向端口映射至所述EPF，进而解析获得所述EPT携带的目的出向端口号；也就是说，当所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式时，所述目的交换芯片则不再依据源交换芯片利用报文业务的交换描述符索引得到的出向端口进行映射，而是直接利用所述EPF信息进行映射；如此，实现了端口扩展，且不影响业务流。
在本发明实施例中，所述确定模块51、第一配置模块52及第二配置模块53均可由终端或服务器中的中央处理器(CPU，Central Processing Unit)或数字信号处理器(DSP，Digital Signal Processor)、或现场可编程门阵列(FPGA，Field Programmable Gate Array)、或集成电路(ASIC，Application Specific Integrated Circuit)实现。
本发明实施例中，如果以软件功能模块的形式实现上述端口扩展方法，并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例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中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的 全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read Only Memory，ROM)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，该计算机存储介质中存储有计算机程序，该计算机程序用于执行本发明实施例的上述端口扩展方法。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。
工业实用性
本发明实施例中确定当前路由交换系统组网中的待扩展源交换芯片；配置所述待扩展源交换芯片对应接入侧的NP描述符携带报文业务的目的出向端口信息；配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式；所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置。如此，能够解决因为出向端口限制导致的设备使用率低的问题，提高多代交换芯片混插组网时系统支持的端口范围，且实现简单、可靠性高。

Claims (11)

  1. 一种端口扩展方法，所述方法包括：
    确定当前路由交换系统组网中的待扩展源交换芯片；
    配置所述待扩展源交换芯片对应接入侧的网络处理器NP描述符携带报文业务的目的出向端口信息；
    配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式；所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置。
  2. 根据权利要求1所述方法，其中，所述确定当前路由交换系统组网中的待扩展源交换芯片，包括：
    依据当前的报文业务确定当前路由交换系统组网中对应所述报文业务的源交换芯片，读取当前路由交换系统组网中各个交换芯片对应的芯片标识，依据所述芯片标识获取每个交换芯片支持的出向端口范围，依据每个交换芯片支持的出向端口范围确定所述源交换芯片中待扩展源交换芯片。
  3. 根据权利要求1或2所述方法，其中，所述确定当前路由交换系统组网中的待扩展源交换芯片之后，所述方法还包括：
    确定所述待扩展源交换芯片对应接入侧的NP描述符的端口扩展位EPF。
  4. 根据权利要求1或2所述方法，其中，所述配置所述待扩展源交换芯片对应接入侧的NP描述符携带报文业务的目的出向端口信息包括：
    配置所述待扩展源交换芯片对应接入侧的NP描述符中的EPF携带报文业务的目的出向端口信息。
  5. 根据权利要求1或2所述方法，其中，所述配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式之前，所述方法还包括：
    配置所述待扩展源交换芯片的工作模式为正常模式；所述正常模式用于指示所述待扩展源交换芯片依据所述报文业务的交换描述符获取对应的目的交换芯片及目的出向端口信息。
  6. 一种端口扩展装置，所述装置包括：确定模块、第一配置模块及第二配置模块；其中，
    所述确定模块，配置为确定当前路由交换系统组网中的待扩展源交换芯片；
    所述第一配置模块，配置为配置所述待扩展源交换芯片对应接入侧的NP描述符携带报文业务的目的出向端口信息；
    所述第二配置模块，配置为配置所述待扩展源交换芯片对应的目的交换芯片的工作模式为端口扩展模式；所述端口扩展模式用于指示所述目的交换芯片将出向端口映射至所述目的出向端口所在位置。
  7. 根据权利要求6所述装置，其中，所述确定模块，配置为依据当前的报文业务确定当前路由交换系统组网中对应所述报文业务的源交换芯片，读取当前路由交换系统组网中各个交换芯片对应的芯片标识，依据所述芯片标识获取每个交换芯片支持的出向端口范围，依据每个交换芯片支持的出向端口范围确定所述源交换芯片中待扩展源交换芯片。
  8. 根据权利要求6或7所述装置，其中，所述确定模块，还配置为确定所述待扩展源交换芯片对应接入侧的NP描述符的EPF。
  9. 根据权利要求6或7所述装置，其中，所述第一配置模块，配置为配置所述待扩展源交换芯片对应接入侧的NP描述符中的EPF携带报文业务的目的出向端口信息。
  10. 根据权利要求6或7所述装置，其中，所述第二配置模块，还配置为配置所述待扩展源交换芯片的工作模式为正常模式；所述正常模式用于指示所述待扩展源交换芯片依据所述报文业务的交换描述符获取对应的 目的交换芯片及目的出向端口信息。
  11. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，该计算机可执行指令用于执行权利要求1至5任一项所述的端口扩展方法。
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