CN106302071B - Adapter, network equipment and port configuration method - Google Patents
Adapter, network equipment and port configuration method Download PDFInfo
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Abstract
The embodiment of the invention discloses a method for port configuration, which comprises the following steps: the adapter acquires configuration data, wherein the configuration data comprises configuration information of a first port, configuration information of a second port and a corresponding relation between the first port and the second port; the adapter configures the first port according to the configuration information of the first port, configures the second port according to the configuration information of the second port, and configures corresponding relations for the first port and the second port respectively, so that the first port and the second port communicate according to the corresponding relations. The embodiment of the invention also provides an adapter. The embodiment of the invention can realize flexible collocation between any function board and the exchange network board, thoroughly realize the openness of the equipment, improve the compatibility of the function boards and the exchange network board produced by different equipment manufacturers and avoid resource waste caused by equipment upgrading.
Description
Technical Field
The embodiment of the invention relates to a network communication technology, in particular to an adapter, network equipment and a port configuration method.
Background
In terms of communication equipment design, whether network equipment, all-in-one machines or open rack architectures, the trend of computing, storage and network convergence is gradually shown. The boards of these devices are classified into two categories, one is a function board that performs a specific task independently, such as: a computing board, a memory board, a line card (english: line card), or a service board. The other type is a switch fabric (english) for implementing interconnection functions between different types of function boards. When developing a device, a very critical objective is to achieve the adaptation between the function board and the switching network board.
Fig. 1 is a schematic diagram of an interconnection scheme between a function board and a switch board in the prior art, please refer to fig. 1, a switch network interface card (FIC) 105 is integrated on a computing board 101, a storage board 102 and a line card board 103 respectively to implement adaptation between each function board and the switch board 104, the FIC105 performs operations such as encapsulation on messages sent by each function board according to a protocol used by the switch board, and performs operations such as decapsulation on messages received from the switch board 104. For example, the FIC105 divides the packet into cells with fixed length or variable length within a certain range according to the length of the cells, encapsulates the cell header and sends the encapsulated cell header to the switch board 104, and after receiving the cells from the switch board 104, fragments the packet extracted from the cells and reassembles the fragmented packet into the original packet.
However, in the prior art, when a new network device uses a switching network board of a different device manufacturer or adopts a new switching technology, if the switching protocol used by the switching network board of the new network device is different from the protocol used by the FIC of the current function board, the FIC needs to be replaced, which causes waste of time and resources.
Disclosure of Invention
The embodiment of the invention provides an adapter, network equipment and a port configuration method, which can realize flexible collocation between any function board and a switching network board, thoroughly realize the openness of the equipment, improve the compatibility of the function boards and the switching network boards produced by different equipment manufacturers and avoid resource waste caused by equipment upgrading.
The invention provides an adapter, which is applied to network equipment, wherein the network equipment also comprises a function board and a switch network board;
the first port is used for connecting the function board, and the first port and the function board support a first protocol;
the second port is used for connecting the switching network board, and the second port and the switching network board support a second protocol;
the adapter further comprises an acquisition unit and a configuration unit;
the acquiring unit is configured to acquire configuration data, where the configuration data includes configuration information of the first port, configuration information of the second port, and a correspondence between the first port and the second port;
the configuration unit is configured to configure the first port according to the configuration information of the first port, configure the second port according to the configuration information of the second port, and configure the corresponding relationship for the first port and the second port, respectively, so that the first port and the second port communicate according to the corresponding relationship.
With reference to the first aspect, in a first possible implementation manner, the obtaining unit is specifically configured to send the protocol types of the first port and the second port to an external server;
and acquiring the configuration data from the external server, wherein the configuration information of the first port and the configuration information of the second port are respectively determined by the external server according to the protocol type of the first port and the protocol type of the second port, and the corresponding relationship between the first port and the second port is determined by the external server according to a pre-configured port corresponding relationship.
With reference to the first aspect, in a second possible implementation manner, the adapter includes a port driver management unit;
the obtaining unit is specifically configured to send the protocol types of the first port and the second port to the port driver management unit and obtain the configuration data from the port driver management unit;
the port driver management unit is configured to determine configuration information of the first port according to a protocol type of the first port, determine configuration information of the second port according to a protocol type of the second port, determine a correspondence between the first port and the second port according to a pre-stored port correspondence, generate the configuration data according to the configuration information of the first port, the configuration information of the second port, and the correspondence between the first port and the second port, and send the configuration data to the obtaining unit.
With reference to the first or second possible implementation manner of the first aspect, in a third possible implementation manner, the adapter further includes a cache unit;
the first port is further configured to receive a message from the function board and send the message to a cache unit, so that the second port obtains the message from the cache unit and sends the message to the switch network board.
With reference to the first aspect and any one of the first to third possible implementation manners of the first aspect, in a fourth possible implementation manner, the adapter further includes an arbitration scheduling unit;
the arbitration scheduling unit is used for determining the sending sequence of the messages sent by each first port according to a preset rule when the plurality of first ports send the messages to the second port simultaneously; or,
and the arbitration scheduling unit is used for determining the sending sequence of the messages sent by each second port according to a preset rule when the plurality of second ports send the messages to the first port simultaneously.
The second aspect of the present invention provides a network device, which includes a function board, a switch board and the adapter provided in the first aspect.
A third aspect of the present invention provides a method for port configuration, where the method is applied to an adapter of a network device, the network device further includes a function board and a switch network board, the adapter includes a first port and a second port, the first port is used to connect to the function board, the first port and the function board support a first protocol, the second port is used to connect to the switch network board, and the second port and the switch network board support a second protocol, and the method includes:
the adapter acquires configuration data, wherein the configuration data comprises configuration information of the first port, configuration information of the second port and a corresponding relation between the first port and the second port;
the adapter configures the first port according to the configuration information of the first port, configures the second port according to the configuration information of the second port, and configures the corresponding relationship for the first port and the second port respectively, so that the first port and the second port communicate according to the corresponding relationship.
With reference to the third aspect, in a second possible implementation manner, the acquiring, by the adapter, the configuration data specifically includes:
the adapter sends the protocol types of the first port and the second port to an external server;
the adapter acquires the configuration data from the external server, wherein the configuration information of the first port and the configuration information of the second port are respectively determined by the external server according to the protocol type of the first port and the protocol type of the second port, and the corresponding relationship between the first port and the second port is determined by the external server according to a pre-configured port corresponding relationship.
With reference to the third aspect, in a third possible implementation manner, the adapter includes an obtaining unit and a port driver management unit, where the obtaining, by the adapter, configuration data specifically includes:
the obtaining unit sends the protocol types of the first port and the second port to the port driving management unit and obtains the configuration data from the port driving management unit;
the port driver management unit determines configuration information of the first port according to a protocol type of the first port, determines configuration information of the second port according to a protocol type of the second port, determines a corresponding relationship between the first port and the second port according to a pre-stored port corresponding relationship, generates the configuration data according to the configuration information of the first port, the configuration information of the second port and the corresponding relationship between the first port and the second port, and sends the configuration data to the acquisition unit.
With reference to the first or second possible implementation manner of the third aspect, in a third possible implementation manner, the adapter further includes a cache unit, and the method further includes:
the first port receives a message from the function board and sends the message to the cache unit, so that the second port obtains the message from the cache unit and sends the message to the switching network board.
With reference to the third aspect and any one of the first to third possible implementation manners, in a fourth possible implementation manner, when multiple first ports send messages to the second port at the same time, the adapter determines, according to a preset rule, a sending order of the messages sent by each first port; or,
when a plurality of second ports send messages to the first port at the same time, the adapter determines the sending sequence of the messages sent by each second port according to a preset rule.
According to the technical scheme, the embodiment of the invention has the following advantages:
in this embodiment of the present invention, an adapter may obtain configuration information of a first port, configuration information of a second port, and a corresponding relationship between the first port and the second port, configure the first port according to the configuration information of the first port, configure the second port according to the configuration information of the second port, and configure the corresponding relationship for the first port and the second port, respectively, so that the first port and the second port communicate according to the corresponding relationship. The first port is connected with the function board and supports the same protocol with the function board, and the second port is connected with the exchange network board and also supports the same protocol with the exchange network board. Therefore, the adapter can be flexibly matched between any function board and the exchange network board, the openness of network equipment is thoroughly realized, the compatibility of the function boards and the exchange network boards produced by different equipment manufacturers is improved, and the resource waste caused by equipment upgrading is avoided.
Drawings
FIG. 1 is a schematic diagram of an interconnection scheme between a function board and a switch board in the prior art;
FIG. 2 is a diagram of a network device in an embodiment of the invention;
FIG. 3 is a schematic diagram of a message processing flow in the embodiment of the present invention;
FIG. 4 is a diagram illustrating an implementation of an adapter in an embodiment of the invention;
FIG. 5 is a schematic diagram of another implementation manner of the adapter in the embodiment of the present invention;
FIG. 6 is a diagram illustrating another implementation of an adapter in an embodiment of the invention;
FIG. 7 is a schematic diagram of an embodiment of a port configuration method in an embodiment of the present invention;
FIG. 8 is a schematic diagram of one implementation of configuring a port of an adapter in an embodiment of the invention;
FIG. 9 is a schematic diagram of another implementation of a port for configuring an adapter in an embodiment of the invention;
FIG. 10 is a schematic diagram of an extended implementation of an adapter in an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an adapter in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The embodiment of the invention provides an adapter, network equipment and a port configuration method, which can ensure that when the network equipment is used for replacing a switching network board or a switching technology, the existing function board does not need to be changed, and the function boards produced by different equipment manufacturers and the switching network board can be randomly combined for use, thereby thoroughly realizing the openness of the network equipment, improving the compatibility of the function boards produced by the different equipment manufacturers and the switching network board, and avoiding the resource waste caused by the upgrading of the network equipment.
It should be understood that, in the embodiment of the present invention, an adapter is provided, where the adapter is applied to a network device, and the network device further includes a function board and a switch board. The adapter comprises a first port, which may be understood as a cPort in the adapter connected to the side of the function board via a SerDes, and a second port, which may be understood as an spart in the adapter connected to the side of the switch board via a SerDes.
Referring to fig. 2, a schematic structural diagram of a network device provided in an embodiment of the present invention is shown, where the network device may be composed of a function board, a switch board, and an adapter.
It should be noted that the functional board in fig. 2 is only one schematic diagram formed by 4 boards, and in practical application, the number of the functional boards, the number of the boards in the functional board, and whether the boards include a switching network interface card are not specifically limited.
The above mentioned function boards, switch boards and adapters will be further described below.
Firstly, a function board;
the board card in the existing function board can have an FIC, the FIC can realize the adaptation between the function board and the switching network technology, the FIC performs operations such as encapsulation on the message sent by the function board according to the switching network protocol, and decapsulates the message received from the switching network board. If the cell exchange is used as an example, the FIC divides the message into cells with fixed length or variable length in a certain range according to the length of the cell, encapsulates the cell header and then sends the encapsulated cell header to the exchange network board; after receiving the cells from the switch network board, the segmented message fragments are extracted from the cells and reassembled into the original message.
However, some boards in the function boards do not have corresponding FIC, such as the board 3 and the board 4 in fig. 2, and a Central Processing Unit (CPU) is directly connected to a peripheral component interconnect Express (PCIe) Interface.
Secondly, an adapter;
the adapter may include two ports, which are respectively a cPort connected to the function board and an spart connected to the switch board, and the two ports are connected to the function board or the switch board through SerDes.
It can be understood that the adaptation process can be divided into an uplink process and a downlink process, specifically, the uplink process is that the cPort receives a message from the function board and forwards the message to the iport, and after the iport receives the message from the cPort, the iport determines whether a packet needs to be cut according to the exchange network protocol header, and then encapsulates the exchange network protocol header and forwards the packet to the iport connected to the destination function board. And the downlink process is that the switching network board determines the packet according to the switching network protocol header after receiving the packet, the sPort determines whether the packet needs to be packaged according to the switching network protocol header after receiving the packet forwarded by the switching network board, the original message is obtained through the packaging and is forwarded to the corresponding cPort, and the cPort receives the message from the sPort and forwards the message to the corresponding function board.
The adapter is implemented by a programmable device, such as a Field Programmable Gate Array (FPGA) or a CPU, and may be implemented by one or more FPGAs or CPUs according to the specification and processing capability of the device.
Thirdly, exchanging the network board;
the exchange network board is mainly responsible for data forwarding and use among all the function boards. In order to reduce the pressure of the function board and improve the speed efficiency, the data exchange function of the service function board is separated, and the independent function results in higher forwarding performance of the equipment, reduced load of the main control board and raised reliability of the equipment.
It should be noted that there may be one or more switching network boards in fig. 2, which does not affect the essence of the present invention, and therefore the number of the switching network boards is not limited herein.
Fig. 3 is a schematic diagram of a message processing flow, and referring to fig. 3, first, the function board sends a message to the adapter, where the message includes complete data information to be sent. In the adapter, a cPort driver receives the message and determines a corresponding sPort driver, then the message is sent to the corresponding sPort driver, the sPort driver packages a switching network protocol header after receiving the message, determines a corresponding target sPort driver and forwards the message to a switching network board. Similarly, the switching network board can send a message to the sPort driver, the sPort driver receives the message and decapsulates the message to obtain an original message, and then the message is forwarded to the cPort driver, and the cPort driver forwards the message to the function board, so that the complete decoupling of the function board and the switching network technology is realized. For each function board, it is seen that the switching network board is completely adapted to the protocol used by itself, and then for the switching network board, it is also seen that the protocol used by the function board is completely identical to the protocol used by itself.
In the foregoing description, the adapter in the embodiment of the present invention has a function of implementing decoupling between the function board and the switch network technology, so that any function board and any switch network board can be flexibly configured.
Fig. 4 is a schematic diagram of an implementation manner of the adapter, please refer to fig. 4, in which the adapter is in a buckle structure, and the adapter is connected to a board card in a single function board. When the size of each function board is smaller than the inner space of the equipment, the function board can be connected with the adapter by adopting a buckling mode, and if a part of function boards adopt the same protocol as the switching network, the function boards can be directly connected with the switching network board. As shown in fig. 4, whether the function board employs the card depends on whether the protocol employed by the function board is consistent with the exchange network side, and when the protocols employed by the computing board and the storage board are different from the protocol employed by the exchange network side, the function board can be connected with the exchange network through the card, and the card is used for converting the protocol of the function board, so that the protocol employed by the function board can be adapted with the exchange network side. In fig. 4, since the line card board and the service board adopt the same protocol as the switching network, the switching network board can be directly connected.
In the embodiment of the invention, the adapter implementation mode is provided, slot positions can not be occupied, the flow generated by each function board is respectively processed by corresponding buckling cards, centralized bottleneck points do not exist, the requirement on buckling specifications is low, other function boards cannot be influenced even if the buckling cards are singly in a problem, and the reliability is good.
Fig. 5 is a schematic diagram of another implementation manner of the adapter, referring to fig. 5, the adapter is implemented as a separate board card, occupies a separate slot, and is a centralized implementation manner. Other function boards are provided with SerDes links connected with the exchange network board and also provided with SerDes links connected with the adapter card slot. This is because some function boards, which use the same protocol for a certain switch network technology, can be directly connected without being connected via an adapter card, while some function boards, which use different protocols, need to be connected to the switch network board via the adapter card. The connection relationship between the functional boards can be determined by configuring the SerDes links used by the slots.
It is understood that the adapter card may occupy one or more slots, and the adapter card has high specification and reliability requirements due to the need to concentrate the switched traffic to the adapter card, and the specification and reliability requirements are not limited herein.
Because slot mixed insertion is supported, each slot logically occupies two paths of SerDes connection resources, and therefore certain resource waste is caused.
Secondly, in the embodiment of the invention, another adapter implementation mode is provided, and in the mode, various types of function boards can be inserted into the same slot position in a mixed mode, so that the flexibility is good, and the practicability of the scheme of the invention is improved.
Fig. 6 is a schematic diagram of another implementation manner of the adapter, referring to fig. 6, the adapter is still implemented as a separate board card, occupies a separate slot, and is another centralized implementation manner. Different from the embodiment corresponding to fig. 5, in this embodiment, part of the slots may be directly connected to the switch board, and part of the slots need to be connected to the switch board again through the adapter card. However, the slot position where the function board can be inserted needs to be determined according to whether the function board adopts the same protocol as the switching network, and mixed insertion between any types of function boards cannot be realized.
In the embodiment of the present invention, another adapter implementation manner is provided, and since the slot position into which the function board can be inserted needs to be determined according to whether the function board adopts the same protocol as the switching network, each slot position does not logically need to occupy the connection resources of two SerDes, thereby saving resources.
Referring to fig. 7, a method for port configuration according to an embodiment of the present invention is described in detail below, where the method for port configuration includes:
201. the adapter of the network equipment acquires configuration data, wherein the configuration data comprises configuration information of a first port, configuration information of a second port and a corresponding relation between the first port and the second port, the network equipment further comprises a function board and a switching network board, the adapter comprises the first port and the second port, the first port is used for being connected with the function board, the first port and the function board support a first protocol, the second port is used for being connected with the switching network board, and the second port and the switching network board support a second protocol;
in this embodiment, the adapter, the function board, and the switch board together form a network device, where the adapter includes a first port and a second port, the first port may be a cPort connected to the function board, the second port may be an srport connected to the switch board, the first port and the function board support a same protocol, i.e., a first protocol, and the second port and the switch board support a same protocol, i.e., a second protocol.
The adapter acquires configuration data, wherein the configuration data comprises configuration information of the first port, configuration information of the second port and a corresponding relation between the first port and the second port.
202. The adapter configures the first port according to the configuration information of the first port, configures the second port according to the configuration information of the second port, and configures corresponding relations for the first port and the second port respectively, so that the first port and the second port communicate according to the corresponding relations.
In this embodiment, after the adapter in the network device obtains the configuration data, the first port is configured according to the configuration information of the first port, the second port is configured according to the configuration information of the second port, and the first port and the second port are respectively configured with a corresponding relationship, so that the first port and the second port communicate according to the corresponding relationship.
It should be noted that the first protocol of the present invention is protocol information of the function board, and specifically, the function board protocol may include an Ethernet (Ethernet) protocol, a Cell (Cell) protocol, a PCIe protocol, a Fibre Channel (FC) protocol, and/or an Infiniband (IB) protocol, and the function board protocol is not limited herein.
It is understood that the second protocol is the protocol information of the switch network board, and specifically, the switching network protocol may be a Cell protocol, an Ethernet protocol, an IB protocol and/or a PCIe protocol, which is not limited herein.
In theory, the first port may also perform protocol conversion, but in practical application, the first protocol is not usually used for protocol conversion, because the switching network board generally uses the same protocol, and the function board may use multiple protocols, so that the protocol conversion actually performs one layer of tunnel encapsulation according to the protocol used by the switching network, and the process of receiving messages from the switching network board performs tunnel decapsulation, and if these works are performed by the first port, the first port also needs to sense the switching network protocol, and a tight coupling relationship exists between the two, so that the work of protocol conversion is more reasonable to be put on the second port.
In an embodiment of the present invention, an adapter is provided, where the adapter may obtain configuration information of a first port, configuration information of a second port, and a correspondence between the first port and the second port, configure the first port according to the configuration information of the first port, configure the second port according to the configuration information of the second port to configure corresponding ports, and configure the correspondence for the first port and the second port, respectively, so that the first port and the second port communicate according to the correspondence. When the first port is connected with the function board and supports the same protocol with the function board, the second port is connected with the exchange network board and also supports the same protocol with the exchange network board. Therefore, the adapter can be flexibly matched between any function board and the exchange network board, the openness of the equipment is thoroughly realized, the compatibility of the function boards and the exchange network boards produced by different equipment manufacturers is improved, and the resource waste caused by equipment upgrading is avoided.
Optionally, on the basis of the embodiment corresponding to fig. 7, in a first optional embodiment of the method for port configuration provided in the embodiment of the present invention, the obtaining, by the adapter, the configuration data specifically includes:
the adapter sends the protocol types of the first port and the second port to an external server;
the adapter acquires configuration data from the external server, wherein the configuration information of the first port and the configuration information of the second port are respectively determined by the external server according to the protocol type of the first port and the protocol type of the second port, and the corresponding relation between the first port and the second port is determined by the external server according to the pre-configured port corresponding relation.
In this embodiment, the manner of acquiring the configuration data by the adapter may specifically be that the protocol types of the first port and the second port are sent to the external server, the external server determines the configuration information of the first port according to the protocol type of the first port, determines the configuration information of the second port according to the protocol type of the second port, and determines the correspondence between the first port and the second port according to the pre-configured port correspondence. The adapter may obtain these corresponding configuration data from an external server.
It should be noted that the external server may be a controller, an equipment main control board, or other input equipment in logical concept, and therefore is not limited herein.
Fig. 8 is a schematic diagram of an implementation manner of configuring ports of an adapter according to an embodiment of the present invention, please refer to fig. 8, where, in step 1, a maintenance person specifies ports and options to be configured through a configuration template; in step 2, the controller converts the content of the configuration template into a port configuration parameter according to a preset configuration policy, specifically, the controller may obtain a first protocol of the function board and a second protocol of the switch fabric, then determine configuration information of a first port corresponding to a cPort from the preset configuration policy according to the first protocol, and determine configuration information of a second port corresponding to an sPort port from the preset configuration policy according to the second protocol, where the configuration information of the first port includes the cPort configuration parameter and a port driver, and the configuration information of the second port includes the sPort port configuration parameter and the port driver.
Configuration parameters refer to parameter values that need to be assigned to a port driver in advance in order for the port driver to complete a design function, for example, the number, rate, etc. of Serdes links used by cPort can be specified by parameters. It should be noted that the correspondence between cPort and iport may be directly specified by configuration parameters, or may be configured by configuring a corresponding rule for the scheduling unit, and then the scheduling unit adapts according to the corresponding rule, which is not limited herein.
The port driver may implement a program in a hardware programming language, such as Verilog or VHDL, that performs a specific function. Then, the program is burned to the FPGA through an FPGA programming tool, and the program becomes a plurality of gate circuits in the FPGA so as to complete the designed function.
As shown in fig. 8, in step 3, the controller issues the configuration parameters and the corresponding port driver to the port, and specifically, the controller sends the configuration information to the cPort and sends the configuration information to the sPort. The cPort can perform corresponding configuration on the cPort according to the port driver in the received configuration information, and the sPort performs corresponding configuration on the sPort according to the port driver in the received configuration information. Optionally, after the port normally works in step 4, the port state information, such as the port transceiving rate, the number of transceiving packets, and the like, may be reported to the controller.
Secondly, in the embodiment of the invention, the adapter is configured through the controller, so that the protocol of the function board and the protocol of the exchange network board can be processed when changed, the adaptability to the protocol is strong, the configuration parameters of the port can be adjusted in real time, and the flexibility and the convenience of the scheme are greatly improved.
Optionally, on the basis of the embodiment corresponding to fig. 7, in a second optional embodiment of the method for configuring a port according to the embodiment of the present invention, the adapter includes an obtaining unit and a port driver management unit, and the obtaining, by the adapter, configuration data may specifically include:
the acquisition unit sends the protocol types of the first port and the second port to the port drive management unit and acquires configuration data from the port drive management unit;
the port drive management unit determines configuration information of the first port according to the protocol type of the first port, determines configuration information of the second port according to the protocol type of the second port, determines a corresponding relation between the first port and the second port according to a pre-stored port corresponding relation, generates configuration data according to the configuration information of the first port, the configuration information of the second port and the corresponding relation between the first port and the second port, and sends the configuration data to the acquisition unit.
In this embodiment, the adapter includes an obtaining unit and a port drive management unit, and a manner of obtaining the configuration data by the adapter may specifically be that the first port and the second port know their own port protocol types, and the obtaining unit sends the protocol types of the first port and the second port to the port drive management unit, and obtains the configuration data from the port drive management unit.
Correspondingly, the port driving management unit determines the configuration information of the first port according to the protocol type of the first port, determines the configuration information of the second port according to the protocol type of the second port, and determines the corresponding relation between the first port and the second port according to the pre-stored port corresponding relation. The port driver management unit may internally store templates, which mainly include pre-configured relationships between protocol types and configuration information. The port drive management unit generates configuration data according to the configuration information of the first port, the configuration information of the second port and the corresponding relation between the first port and the second port, and sends the configuration data to the acquisition unit.
It can be understood that the port driver management module matches the received protocol type with the corresponding relationship in the internally stored template one by one, and when the protocol type is not matched with one type of configuration information in the template, the port driver management module automatically matches with the next type of configuration information until the protocol type is corresponding to the configuration information.
Fig. 9 is a schematic diagram of another implementation manner of configuring a port of an adapter in an embodiment of the present invention, please refer to fig. 9, where, as shown in step 1 in the figure, a cPort senses that a function board is powered on, and an sPort also senses that a switch board is powered on; in step 2, the port initiates a parameter negotiation request to the port driver management unit, specifically, the cPort first receives the parameter negotiation request sent by the function board and sends the request to the port driver management unit, and similarly, the srort receives the parameter negotiation request sent by the switch network board and sends the request to the port driver management unit.
The port driver management unit may include several port driver sub-units, as shown in fig. 9, which may be divided into a Cell sub-unit, an Ethernet sub-unit and a PCIe sub-unit, but fig. 9 is only an illustration, and the practical application is not limited to using the above three sub-units. Referring to step 3 in fig. 9, the port driver management unit selects a driver adapted to the function board from the preset drivers, and determines the Serdes parameter and the driving parameter. Specifically, the port driver management unit determines the protocol type of the function board after receiving a parameter negotiation request sent by the function board, and obtains configuration information matched with the function board from a preset database according to the protocol type of the function board, and similarly, determines the protocol type of the switching network board after receiving the parameter negotiation request of the switching network board, and obtains configuration information matched with the switching network board from the preset database according to the protocol type of the switching network board, wherein the configuration information includes Serdes parameters configured by a cPort and parameters of port driver.
In step 4 in fig. 9, the port driver management unit issues the configuration parameters and the corresponding port driver to the port. Specifically, the port driver management unit sends corresponding configuration information to the cPort, and sends corresponding configuration information to the sPort. Meanwhile, the cPort configures according to the configuration information after receiving the corresponding configuration information sent by the drive management unit; and after the corresponding configuration information sent by the port driver management unit is received by the sPort, the configuration is carried out according to the configuration information.
The embodiment of the invention provides an adapter which is suitable for port protocol types supported by the prior art, and the adapter automatically completes corresponding configuration work, so that equipment is intelligentized, manual configuration is not needed, and labor cost is saved.
Optionally, on the basis of the first or second optional embodiment corresponding to fig. 7, in a third optional embodiment of the switching method provided in the embodiment of the present invention, the adapter may further include a cache unit, and the method may further include:
the first port receives the message from the function board and sends the message to the cache unit, so that the second port obtains the message from the cache unit and sends the message to the switching network board.
In this embodiment, the adapter further includes a cache unit, and the first port receives the packet from the function board and then sends the packet to the cache unit, so that the second port can obtain the packet from the cache unit and send the packet to the switch network board.
When the basic adapter only includes the first port and the second port, and the connection relationship between the first port and the second port is relatively simple, for example, when the first port and the second port are connected in a one-to-one manner or the rates of the first port and the second port are substantially matched, the embodiment corresponding to fig. 8 or 9 may be applicable, but when the following situation exists, a cache unit needs to be used.
It can be understood that, specifically, when the first port or the second port receives a message, the message is sent to the cache module, and this situation can be implemented by configuring in advance as a programmed situation; when the rate of sending messages by the first ports is greater than the receiving rate of the second ports, the first ports send the messages to the cache module; when the second port sends a message to the first port and the sending rate of the second port is greater than the receiving rate of the first port, the caching module caches the message sent by the second port.
Fig. 10 is a schematic diagram of an extended implementation manner of an adapter in an embodiment of the present invention, please refer to fig. 10, in which the adapter includes a cache unit and an arbitration scheduling unit, in which the cache unit mainly functions to implement caching of a packet and eliminate an influence of rate mismatch between a first port and a second port on a whole system.
As shown in the figure, specifically, the controller may determine information such as a storage location and a capacity size of the cache unit according to the configuration information corresponding to the cPort and the configuration information corresponding to the sPort, or the port drive management unit may determine the storage capacity size of the cache unit according to the configuration information corresponding to the cPort and the configuration information corresponding to the sPort. When the cPort sends a message to the sPort, if the sending rate of the cPort is far lower than the receiving rate of the sPort, the buffer unit stores the message sent by the cPort.
Furthermore, in the embodiment of the present invention, a cache unit for storing the message is introduced into the adapter, and the cache unit can synchronize the transmission of the message in the adapter, so that congestion in the transmission process is not caused, the feasibility and the practicability of the scheme are improved, and the flexibility of the scheme is embodied.
Optionally, on the basis of the first or second optional embodiment corresponding to fig. 7, in a fourth optional embodiment of the method for switching provided in the embodiment of the present invention, the method may further include:
when a plurality of first ports send messages to a second port simultaneously, the adapter determines the sending sequence of the messages sent by each first port according to a preset rule; or,
when a plurality of second ports send messages to the first port at the same time, the adapter determines the sending sequence of the messages sent by each second port according to the preset rule.
In this embodiment, when a plurality of first ports send a message to one second port at the same time, the sending order of the plurality of first ports needs to be set, and conversely, when a plurality of second ports send a message to the same first port at the same time, the sending order of the plurality of second ports also needs to be set.
Fig. 10 is a schematic diagram illustrating an extended implementation manner of an adapter in an embodiment of the present invention, please refer to fig. 10, where the adapter includes a cache unit and an arbitration scheduling unit, where the arbitration scheduling unit mainly functions to determine, according to a preset rule, a sequence in which different ports transmit messages when multiple source ports transmit messages with the same destination port at the same time.
As shown in the figure, specifically, assuming that when the messages sent by cPort1 and cPort3 at the same time need to be forwarded to the switch network board through sports 1, both ports send requests to the arbitration scheduling unit, and the arbitration scheduling unit may determine that cPort3 sends messages first and cPort1 sends messages later, or cPort1 sends messages first and cPort3 sends messages later.
The preset message processing rule of the arbitration scheduling unit can be determined by an external server, or the preset message processing rule of the arbitration scheduling unit can be determined by a port drive management unit, the preset message processing rule is set in advance, and the port sending sequence is determined according to the preset message processing rule.
Furthermore, in the embodiment of the present invention, an arbitration scheduling unit is introduced into the adapter, and the arbitration scheduling unit can enable the source port to send the packets according to a certain sequence, so that transmission congestion is not caused, and the feasibility and the practicability of the scheme are improved.
For convenience of understanding, a detailed description of an exchange method in the present invention is provided in a specific application scenario, specifically:
in order to develop a new project and introduce a new device, the company a needs to replace the switching network, which may result in that a part of the existing function boards cannot be inserted into the new device without modification, but the large amount of modification of the function boards causes the company a to consume a large amount of money. The technicians in company A consider to adopt the adapter to realize the complete decoupling between the function board and the exchange network board, so as to save time and expenses.
Firstly, a technician of a company A formulates ports and options to be configured through a configuration template, specifically a cPort port and an sPort port, and a controller can translate the content of the configuration template into specific port configuration parameters according to a configuration strategy preset by the technician, for example, the number and the rate of Serdes links used by the cPort can be specified through the port configuration parameters. The controller issues configuration parameters and corresponding port driver to the cPort port and the sPort port in the adapter, and the port driver is a section of program realized by using a hardware programming language Verilog, so that the configuration of the port is completed.
When a new device is used, the A function board firstly sends a first protocol message to the cPort, the cPort determines the corresponding sPort and sends the first protocol message to the sPort, the sPort encapsulates a switching network protocol header, the first protocol message is converted to obtain a second protocol message, the second protocol message is sent to the switching network board of the new device, the switching network board side can see the function board consistent with the protocol adopted by the switching network board side, and similarly, the switching network board also sends the message to the function board in a similar mode, so that the function board can also see the switching network board consistent with the protocol adopted by the function board side.
Fig. 11 is a schematic structural diagram of an adapter 30 according to an embodiment of the present invention. Adapter 30 may include input component 310, output component 320, processor 330, and memory 340. Memory 340 may include both read-only memory and random-access memory, and provides instructions and data to processor 330. A portion of memory 340 may also include non-volatile random access memory.
and (3) operating instructions: including various operational instructions for performing various operations.
Operating the system: including various system programs for implementing various basic services and for handling hardware-based tasks.
In the embodiment of the present invention, the processor 330 is configured to:
acquiring configuration data, wherein the configuration data comprises configuration information of the first port, configuration information of the second port and a corresponding relation between the first port and the second port;
configuring the first port according to the configuration information of the first port, configuring the second port according to the configuration information of the second port, and configuring the corresponding relationship for the first port and the second port respectively, so that the first port and the second port communicate according to the corresponding relationship.
Processor 330 controls the operation of adapter 30, and processor 330 may also be referred to as a CPU. Memory 340 may include both read-only memory and random-access memory, and provides instructions and data to processor 330. A portion of memory 340 may also include non-volatile random access memory. In particular applications, the various components of adapter 30 are coupled together by a bus system 350, wherein bus system 350 may include a power bus, a control bus, a status signal bus, and the like, in addition to a data bus. For clarity of illustration, however, the various buses are labeled in the figures as bus system 350.
The method disclosed in the above embodiments of the present invention may be applied to the processor 330, or implemented by the processor 330. The processor 330 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 330. The processor 330 may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 340, and the processor 330 reads the information in the memory 340 and performs the steps of the above method in combination with the hardware thereof.
Optionally, the processor 330 is specifically configured to:
the output component 320 sends the protocol types of the first port and the second port to an external server;
and acquiring the configuration data from the external server, wherein the configuration information of the first port and the configuration information of the second port are respectively determined by the external server according to the protocol type of the first port and the protocol type of the second port, and the corresponding relation between the first port and the second port is determined by the external server according to a pre-configured port corresponding relation.
Optionally, the processor 330 is specifically configured to:
sending the protocol types of the first port and the second port to the port drive management unit and acquiring the configuration data from the port drive management unit;
determining configuration information of the first port according to the protocol type of the first port, determining configuration information of the second port according to the protocol type of the second port, determining a corresponding relation between the first port and the second port according to a pre-stored port corresponding relation, generating configuration data according to the configuration information of the first port, the configuration information of the second port and the corresponding relation between the first port and the second port, and sending the configuration data to the acquisition unit.
Optionally, the processor 330 is specifically configured to:
when a plurality of first ports send messages to the second port simultaneously, the adapter determines the sending sequence of the messages sent by each first port according to a preset rule; or,
when a plurality of second ports send messages to the first port at the same time, the adapter determines the sending sequence of the messages sent by each second port according to a preset rule.
Optionally, the output component 320 is configured to receive a message from the function board and send the message to the cache unit, so that the second port obtains the message from the cache unit and sends the message to the switch board.
The related description of fig. 11 can be understood with reference to the related description and effects of the method portion of fig. 7, which are not redundantly described here.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be separate, and parts displayed as units may or may not be units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other media capable of storing program codes.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An adapter is applied to a network device, the network device further comprises a function board and a switch network board, and the adapter comprises a first port and a second port;
the first port is used for connecting the function board, and the first port and the function board support a first protocol;
the second port is used for connecting the switching network board, and the second port and the switching network board support a second protocol;
the adapter further comprises an acquisition unit and a configuration unit;
the acquiring unit is configured to acquire configuration data, where the configuration data includes configuration information of the first port, configuration information of the second port, and a correspondence between the first port and the second port;
the configuration unit is configured to configure the first port according to the configuration information of the first port, configure the second port according to the configuration information of the second port, and configure the corresponding relationship for the first port and the second port, respectively, so that the first port and the second port communicate according to the corresponding relationship, where the configuration information of the first port and the configuration information of the second port are determined according to a protocol type of the first port and a protocol type of the second port, respectively;
the adapter comprises a port drive management unit;
the obtaining unit is specifically configured to send the protocol types of the first port and the second port to the port driver management unit and obtain the configuration data from the port driver management unit;
the port driver management unit is configured to determine configuration information of the first port according to a protocol type of the first port, determine configuration information of the second port according to a protocol type of the second port, determine a correspondence between the first port and the second port according to a pre-stored port correspondence, generate the configuration data according to the configuration information of the first port, the configuration information of the second port, and the correspondence between the first port and the second port, and send the configuration data to the acquisition unit.
2. The adapter according to claim 1, wherein the obtaining unit is specifically configured to send the protocol types of the first port and the second port to an external server;
and acquiring the configuration data from the external server, wherein the configuration information of the first port and the configuration information of the second port are respectively determined by the external server according to the protocol type of the first port and the protocol type of the second port, and the corresponding relationship between the first port and the second port is determined by the external server according to a pre-configured port corresponding relationship.
3. The adapter of claim 2,
the adapter also comprises a cache unit;
the first port is further configured to receive a message from the function board and send the message to a cache unit, so that the second port obtains the message from the cache unit and sends the message to the switch network board.
4. The adapter according to any of claims 1-3, wherein said adapter further comprises an arbitration scheduling unit;
the arbitration scheduling unit is used for determining the sending sequence of the messages sent by each first port according to a preset rule when the plurality of first ports send the messages to the second port simultaneously; or,
and the arbitration scheduling unit is used for determining the sending sequence of the messages sent by each second port according to a preset rule when the plurality of second ports send the messages to the first port simultaneously.
5. A network device comprising a function board, a switch board and an adapter according to any of claims 1-4.
6. A method for port configuration, the method being applied to an adapter of a network device, the network device further including a function board and a switch board, the adapter including a first port and a second port, the first port being used for connecting the function board, the first port and the function board supporting a first protocol, the second port being used for connecting the switch board, the second port and the switch board supporting a second protocol, the method comprising:
the adapter acquires configuration data, wherein the configuration data comprises configuration information of the first port, configuration information of the second port and a corresponding relation between the first port and the second port;
the adapter configures the first port according to the configuration information of the first port, configures the second port according to the configuration information of the second port, and configures the corresponding relationship for the first port and the second port respectively, so that the first port and the second port communicate according to the corresponding relationship, and the configuration information of the first port and the configuration information of the second port are determined according to the protocol type of the first port and the protocol type of the second port respectively;
the adapter includes an obtaining unit and a port driver management unit, and the obtaining of the configuration data by the adapter specifically includes:
the obtaining unit sends the protocol types of the first port and the second port to the port driving management unit and obtains the configuration data from the port driving management unit;
the port drive management unit determines configuration information of the first port according to a protocol type of the first port, determines configuration information of the second port according to a protocol type of the second port, determines a corresponding relationship between the first port and the second port according to a pre-stored port corresponding relationship, generates the configuration data according to the configuration information of the first port, the configuration information of the second port and the corresponding relationship between the first port and the second port, and sends the configuration data to the acquisition unit.
7. The method of claim 6, wherein the obtaining of the configuration data by the adapter specifically comprises:
the adapter sends the protocol types of the first port and the second port to an external server;
the adapter acquires the configuration data from the external server, wherein the configuration information of the first port and the configuration information of the second port are respectively determined by the external server according to the protocol type of the first port and the protocol type of the second port, and the corresponding relationship between the first port and the second port is determined by the external server according to a pre-configured port corresponding relationship.
8. The method of claim 6 or 7, wherein the adapter further comprises a cache unit, the method further comprising:
the first port receives a message from the function board and sends the message to the cache unit, so that the second port obtains the message from the cache unit and sends the message to the switching network board.
9. The method of claim 6, further comprising:
when a plurality of first ports send messages to the second port simultaneously, the adapter determines the sending sequence of the messages sent by each first port according to a preset rule; or,
when a plurality of second ports send messages to the first port at the same time, the adapter determines the sending sequence of the messages sent by each second port according to a preset rule.
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| CN108667645B (en) * | 2017-04-01 | 2020-07-28 | 华为技术有限公司 | Method, device, forwarding equipment and system for configuring interface |
| CN109039788B (en) * | 2018-09-30 | 2022-02-25 | 锐捷网络股份有限公司 | Port configuration method and device of network equipment and storage medium |
| CN109586956B (en) * | 2018-11-16 | 2022-09-02 | 上海博达数据通信有限公司 | FCoE switch capable of flexibly configuring ports and method |
| CN112311567B (en) | 2019-07-26 | 2022-04-05 | 华为技术有限公司 | Communication method and device |
| WO2023272487A1 (en) * | 2021-06-29 | 2023-01-05 | 华为技术有限公司 | Auto-negotiation method, clock and data recovery unit, and circuit board |
| CN113783902B (en) * | 2021-11-16 | 2022-01-21 | 成都新西旺自动化科技有限公司 | Communication conversion method and device suitable for communication among different devices |
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