CN101826998A - Method for realizing total switching function test of switching net and switching net - Google Patents
Method for realizing total switching function test of switching net and switching net Download PDFInfo
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Abstract
The embodiment of the invention discloses a method for realizing a total switching function test of a switching net and a switching net, and relates to a testing technique. The invention aims to reduce the cost for testing the total switching function of the switching net. The method comprises the following steps: a first transmitting port transmits a first test message to a data unit switching module; the data unit switching module switches the received first test message to receiving ports; and each receiving port transmits a second test message to the corresponding transmitting port, so that the transmitting port checks the second test message transmitted by the receiving port according to the transmission condition of the first test message. The embodiment of the invention is mainly used in switching nets.
Description
Technical field
The present invention relates to measuring technology, relate in particular to a kind of method and switching net of realizing total switching function test of switching net.
Background technology
Data communication productss such as industry main flow router, switch generally adopt three grades of architecture for exchanging designs of M-S-M at present, and switching network asic chip (hereinafter to be referred as switching net) is the acp chip of the function of exchange of intergrade (S) circuit.
Switching net mainly is made up of four parts: high speed Serdes (Serializer/Deserializer, serializer/de-serializers) bus interface module (Serdes RX, Serdes TX), high speed Serdes receives and dispatches control module (RX controller, TX controller), DCS (Data Cell Switch, the data cell exchange) module and MPI (Microprocessor Interface, Microprocessor Interface) module etc.Wherein, the DCS module is the nucleus module of switching net.
In present switching network test chip, industry usually adopts dual mode.
First kind of mode be Serdes loopback built-in self-test (Build-In Self Test, BIST).In this technology, in the Serdes bus interface module, normally under the control of high speed Serdes transmitting-receiving control module, between the sending and receiving interface of correspondence, transmit data, for example TX1 sends data, RX1 receives data, and TX2 sends data, RX2 receives data.In this manner, to the test of switching net can cover high speed Serdes bus interface module, high speed Serdes receives and dispatches control module.But because in this manner, data can only transmit between the transmitting-receiving interface of correspondence, receive the such data transfer procedure between difference transmitting-receiving interface of data for for example TX1 transmission data, RX2 and then can't test.
Can't carry out the defective of the full function of exchange test of switching net in order to remedy first kind of mode, in the second way, set up full configuration M step and be implemented between corresponding transmitting-receiving interface or the not corresponding transmitting-receiving interface and transmit data, thereby realized full function of exchange test switching net.
But, realizing process of the present invention, though realized test to the full function of exchange of switching net according to the above-mentioned second way, owing to having set up the M step, therefore, the cost of this mode is higher.
Summary of the invention
The embodiment of the invention provides a kind of method and switching net of realizing total switching function test of switching net, can reduce the cost that switching net is carried out full function of exchange test.
The embodiment of the invention adopts following technical scheme:
A kind of method that realizes total switching function test of switching net comprises:
First transmit port sends first test packet to the data cell Switching Module;
Described data cell Switching Module exchanges to each receiving port with described first test packet that receives;
Described receiving port sends second test packet to corresponding transmit port, makes described transmit port carry out verification according to the transmission situation of described first test packet to second test packet that described receiving port sends.
A kind of switching net comprises: at least one transmit port, data cell Switching Module, and at least one receiving port; Wherein,
Described at least one transmit port, be used for sending first test packet to described data cell Switching Module, second test packet that reception is sent by described receiving port, and second test packet that described receiving port sends is carried out verification according to the transmission situation of described first test packet;
Described data cell Switching Module is used to receive first test packet that is sent by described transmit port, and described first test packet is exchanged to described each receiving port;
Described at least one receiving port is used to receive first test packet by described data cell Switching Module exchange, and sends second test packet to described transmit port.
The method and the switching net of the realization total switching function test of switching net of the embodiment of the invention, by transmit port is configured, making it have message simultaneously sends and verifying function, the test packet that transmit port is sent exchanges to whole receiving ports then, and transmit port will be re-send to by the data that receiving port sends carry out verification, thereby finish the full function of exchange test of switching net.This shows, utilize the switching net and the method for the embodiment of the invention, need not to dispose the M step, therefore, compared to prior art, the switching net of the embodiment of the invention and method can reduce the cost that switching net is carried out full function of exchange test.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart that the embodiment of the invention one realizes the method for total switching function test of switching net;
The message that Fig. 2 and Fig. 3 are respectively in the embodiment of the invention one transmits schematic diagram;
Fig. 4 is the schematic diagram of the embodiment of the invention two switching nets;
Fig. 5 is the structure chart of the embodiment of the invention two switching nets.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
At this, at first " full function of exchange test " this notion is once explained.So-called full function of exchange test, be meant whole functional module in this switching net has been covered in the test of switching net, the message that makes each transmit port send can be sent to receiving port arbitrarily, and whether test is available to the communication path between each receiving port at this transmit port.
For reducing the cost that switching net is carried out full function of exchange test, as shown in Figure 1, the embodiment of the invention one provides a kind of method that realizes total switching function test of switching net, comprising:
At this, for convenience of description, the notion of " first transmit port " has been proposed.Need to prove, may comprise a plurality of transmit ports in the switching net, wherein each transmit port can be as " first transmit port " described herein.That is to say that " first transmit port " is not to refer in particular to certain transmit port, and a notion that only is for convenience as previously mentioned to be proposed.
In addition, owing to be that the global function of switching net is tested, according to the explanation of above-mentioned notion to the global function test, at this, above-mentioned first transmit port is in the inside of switching net first test packet to be sent to the data cell Switching Module.
In this step, described data cell Switching Module can will exchange to each receiving port by first test packet that first transmit port receives by a kind of in the following at least dual mode.
First kind of mode: described data cell Switching Module can be resolved described first test packet, obtains the purpose receiving port information of described first test packet.In described first test packet, its heading includes the cell of 64 bytes, the purpose receiving port of first test packet that is used to represent that this first transmit port is sent also is that described first transmit port is wanted which receiving port to send its first test packet toward.For example, suppose to have 7 receiving ports, this first transmit port is wanted at first its first test packet to be sent to first receiving port, can comprise the information of this first receiving port so in the heading of described first test packet, as the label of this receiving port, address etc.Similar for other remaining 6 port processing modes.Because be to carry out full function of exchange test, therefore, first test packet of this first transmit port need mail to whole receiving ports.
The second way: behind first test packet that receives described first transmit port transmission, described data cell Switching Module can obtain to send the first transmit port information of described first test packet, as the numbering of this first transmit port, address etc.Then, the configuration information according in self register exchanges to corresponding receiving port with described first test packet.For example, be example still with 7 transmit ports and 7 receiving ports.With port numbers is that 1 port is an example, in described data cell Switching Module, can store first test packet that transmit port sends number of times, send out the mapping table of delivery port information and receiving port information, as shown in table 1:
As can be seen from Table 1, when described data cell Switching Module is determined its first test packet that receives from the transmit port that is numbered 1, can count the number of times of first test packet that receives this transmit port.When for the first time receiving first test packet of this transmit port, this first test packet is sent to is numbered 1 receiving port; When for the second time receiving first test packet of this transmit port, this first test packet is sent to is numbered 2 receiving port.Be sent to 7 whole receiving ports up to first test packet with this transmit port.
Certainly, the corresponded manner in this table 1 also has other form.It should be noted that how just to have described for example according to the configuration of data cell Switching Module self first test packet of first transmit port is sent to each receiving port at this.In concrete the application, also have other implementation, be not subjected to restriction in this example of lifting.
Described in step 11, the notion of " first transmit port " has been proposed in embodiments of the present invention.Owing to all can carry out the checking procedure of data at all transmit ports of the switching net of the embodiment of the invention, therefore, need make above-mentioned differentiation to each transmit port.
When described transmit port is described first transmit port, described receiving port is sent to described first transmit port with described second test packet, according to the transmission situation of described first test packet second test packet that receives is carried out verification by described first transmit port then.In checking procedure, the information of first test packet that can send according to its of writing down on this first transmit port as the quantity of first test packet that sends, form etc., is carried out verification to second test packet that receives.If verification is passed through, then full function of exchange is tested successfully, otherwise failure.
When described transmit port is not described first transmit port, transmitting-receiving control module in the described switching net is obtained the relevant information of first test packet of described first transmit port transmission by described first transmit port, as the quantity of first test packet that sends, form etc., and described relevant information sent to described transmit port, by described transmit port second test packet that receives is carried out verification then.In checking procedure, can obtain relevant information according to this transmit port, the quantity of first test packet that sends as first port, form etc. carry out verification to second test packet that receives.If verification is passed through, then full function of exchange is tested successfully, otherwise failure.
At this, need to prove that also if described data cell Switching Module has two-way function of exchange, so, described receiving port also can send to its second test packet described data cell Switching Module.Accordingly, described data cell Switching Module can exchange to described transmit port with second test packet of described receiving port by himself.
As seen from the above, utilize the method for the embodiment of the invention one, by transmit port is configured, making it have message simultaneously sends and verifying function, the test packet that transmit port is sent exchanges to whole receiving ports then, and transmit port will be re-send to by the data that receiving port sends carry out verification, thereby finish the full function of exchange test of switching net.This shows, utilize the method for the embodiment of the invention, need not to dispose the M step, therefore, compared to prior art, the method for the embodiment of the invention can reduce the cost that switching net is carried out full function of exchange test.
In the embodiment of the invention, the message transmittance process between transmit port, data cell Switching Module, receiving port as shown in Figures 2 and 3.As shown in Figure 2, the test packet of transmit port IPX1 promptly exchanges to each receiving port such as OPX1......OPX71 etc. by the mode that inside sends respectively behind the data cell Switching Module.Then, the test packet by OPX1......OPX71 sends sends to the corresponding sending terminal mouth again through the outside.Certainly, the test packet that is sent by OPX1......OPX71 also can not send to the corresponding sending terminal mouth.As shown in Figure 3, the test packet of transmit port IPX1 promptly exchanges to each receiving port such as OPX1......OPX71 etc. by the mode that inside sends respectively behind the data cell Switching Module.With receiving port OPX1 is example, and the mode that the test packet that this port sends can send by inside more promptly exchanges to transmit port arbitrarily through the data cell Switching Module.Other receiving ports are similar.It should be noted that the transmittance process of message in this just illustrates the embodiment of the invention for example.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
As shown in Figure 4, the embodiment of the invention two provides a kind of switching net, comprising: at least one transmit port 21, data cell Switching Module 22, and at least one receiving port 23.Wherein,
Described at least one transmit port 21, be used for sending first test packet to described data cell Switching Module, second test packet that reception is sent by described receiving port, and second test packet that described receiving port sends is carried out verification according to the transmission situation of described first test packet;
Described data cell Switching Module 22 is used to receive first test packet that is sent by described transmit port 21, and described first test packet is exchanged to described each receiving port;
Described at least one receiving port 23 is used to receive first test packet by described data cell Switching Module 22 exchanges, and sends second test packet to described transmit port 21.
Equally, in this embodiment, described data cell Switching Module can be configured to has unidirectional or two-way function of exchange.If described data cell Switching Module has unidirectional function of exchange, so described receiving port is directly second test packet to be turned to described transmit port.If described data cell Switching Module has two-way function of exchange, so, when described receiving port sends to transmit port with second test packet, be this second test packet to be exchanged to described transmit port through described data cell Switching Module.Also promptly, described receiving port can send to its second test packet described data cell Switching Module, and by himself second test packet of described receiving port is exchanged to described transmit port by described data cell Switching Module.
With describe among the method embodiment identical, for convenience of description, the notion of " first transmit port " is also proposed at this.May comprise a plurality of transmit ports in the switching net, wherein each transmit port can be as " first transmit port " described herein.That is to say that " first transmit port " is not to refer in particular to certain transmit port.
When described receiving port sends to transmit port with second test packet, be to send to each transmit port.When sending to described first transmit port, in checking procedure, the information of first test packet that this first transmit port can send according to its of record thereon as the quantity of first test packet that sends, form etc., is carried out verification to first test packet that receives.If verification is passed through, then full function of exchange is tested successfully, otherwise failure.
When sending to other transmit ports, as shown in Figure 5, described switching net also can comprise: receive and dispatch control module 24, be used for being obtained by described first transmit port relevant information of first test packet of described first transmit port transmission, and described relevant information is sent to described transmit port.At this moment, described transmit port can be according to the relevant information that obtains, and the quantity of first test packet that sends as first port, form etc. carry out verification to second test packet that receives.If verification is passed through, then full function of exchange is tested successfully, otherwise failure.
In Fig. 4 or switching net shown in Figure 5, described data exchange module 22 is when exchanging to described first test packet described each receiving port, specifically be used to resolve described first test packet, obtain the purpose receiving port information of described first test packet, and, described first test packet is exchanged to corresponding receiving port according to described purpose receiving port information.Perhaps, described data exchange module 22 is when exchanging to described first test packet described each receiving port, specifically be used to obtain the described first transmit port information that sends, and, described first test packet exchanged to corresponding receiving port according to self configuration information.
But the description among the operation principle reference method embodiment of embodiment of the invention switching net.
As seen from the above, the switching net of the embodiment of the invention, by transmit port is configured, making it have message simultaneously sends and verifying function, the test packet that transmit port is sent exchanges to whole receiving ports then, and transmit port will be re-send to by the data that receiving port sends carry out verification, thereby finish the full function of exchange test of switching net.This shows, utilize the switching net of the embodiment of the invention, need not to dispose the M step, therefore, compared to prior art, the switching net of the embodiment of the invention and method can reduce the cost that switching net is carried out full function of exchange test.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of described claim.
Claims (11)
1. a method that realizes total switching function test of switching net is characterized in that, comprising:
First transmit port sends first test packet to the data cell Switching Module;
Described data cell Switching Module exchanges to each receiving port with described first test packet that receives;
Described receiving port sends second test packet to corresponding transmit port, makes described transmit port carry out verification according to the transmission situation of described first test packet to second test packet that described receiving port sends.
2. method according to claim 1 is characterized in that, described data cell Switching Module exchanges to each receiving port with described first test packet that receives and comprises:
Resolve described first test packet, obtain the purpose receiving port information of described first test packet;
According to described purpose receiving port information, described first test packet is exchanged to corresponding receiving port.
3. method according to claim 1 is characterized in that, described data cell Switching Module exchanges to each receiving port with described first test packet that receives and comprises:
Obtain the first transmit port information that sends described first test packet;
According to the configuration information of self, described first test packet is exchanged to corresponding receiving port.
4. method according to claim 1, it is characterized in that, when described transmit port is described first transmit port, described receiving port sends second test packet to corresponding transmit port, and second test packet that makes described transmit port send described receiving port according to the transmission situation of described first test packet carries out verification and comprises:
Described receiving port is through described data cell Switching Module or directly described second test packet is sent to described first transmit port, makes described first transmit port carry out verification according to the transmission situation of described first test packet to second test packet that is sent by described receiving port.
5. method according to claim 1, it is characterized in that, when described transmit port is not described first transmit port, send second test packet to corresponding transmit port at described receiving port, before second test packet that makes described transmit port send described receiving port according to the transmission situation of described first test packet carried out verification, described method also comprised:
The transmitting-receiving control module is obtained the relevant information of first test packet that described first transmit port sends by described first transmit port, and described relevant information is sent to described transmit port.
6. method according to claim 5, it is characterized in that, described receiving port sends second test packet to corresponding transmit port, and second test packet that makes described transmit port send described receiving port according to the transmission situation of described first test packet carries out verification and comprises:
Described receiving port is through described data cell Switching Module or directly described second test packet is sent to described transmit port, makes described transmit port carry out verification according to described relevant information to second test packet that is sent by described receiving port.
7. a switching net is characterized in that, comprising: at least one transmit port, data cell Switching Module, and at least one receiving port; Wherein,
Described at least one transmit port, be used for sending first test packet to described data cell Switching Module, second test packet that reception is sent by described receiving port, and second test packet that described receiving port sends is carried out verification according to the transmission situation of described first test packet;
Described data cell Switching Module is used to receive first test packet that is sent by described transmit port, and described first test packet is exchanged to described each receiving port;
Described at least one receiving port is used to receive first test packet by described data cell Switching Module exchange, and sends second test packet to described transmit port.
8. switching net according to claim 7 is characterized in that, when described transmit port was not first transmit port, wherein said first port was for sending the port of described first test packet, and described switching net also comprises:
Receive and dispatch control module, be used for obtaining the relevant information of first test packet of described first transmit port transmission, and described relevant information is sent to described transmit port by described first transmit port;
When described second test packet that is sent by described receiving port was carried out verification, described transmit port was according to described relevant information, and second test packet that described receiving port is sent carries out verification.
9. according to claim 7 or 8 described switching nets, it is characterized in that, described receiving port is further used for sending second test packet to described data cell Switching Module, and second test packet that described data cell Switching Module is further used for being received by described each receiving port exchanges to corresponding transmit port.
10. according to claim 7 or 8 described switching nets, it is characterized in that, described data exchange module is when exchanging to described first test packet described each receiving port, specifically be used to resolve described first test packet, obtain the purpose receiving port information of described first test packet, and, described first test packet is exchanged to corresponding receiving port according to described purpose receiving port information.
11. according to claim 7 or 8 described switching nets, it is characterized in that, described data exchange module is when exchanging to described first test packet described each receiving port, specifically be used to obtain the first transmit port information that sends described first test packet, and, described first test packet is exchanged to corresponding receiving port according to self configuration information.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110278126A (en) * | 2019-06-28 | 2019-09-24 | 苏州浪潮智能科技有限公司 | A kind of switch port self checking method, system, terminal and storage medium |
| CN110912765A (en) * | 2019-09-12 | 2020-03-24 | 无锡江南计算技术研究所 | Embedded function self-testing method and device for high-order router chip |
| CN112997088A (en) * | 2018-11-08 | 2021-06-18 | 华为技术有限公司 | On-chip input capacitive voltage divider for wired receiver with integrated loopback |
| CN114363274A (en) * | 2021-12-24 | 2022-04-15 | 裕太微电子股份有限公司 | Packet receiving and transmitting system and method |
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| CN101826998B (en) | 2012-04-25 |
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