CN104579855A - Testing method of interchanger product MINI LTT - Google Patents

Abstract

The invention relates to the test technology field of a product MINI LTT and particularly relates to a testing method of an interchanger product MINI LTT. The testing method comprises the following steps: step1, each port of to-be-tested equipment is sequentially connected with the port of an auxiliary testing interchanger, and two gigabit ports of the auxiliary testing interchanger are connected into two testing ports of a network tester; step2, except for the port connected with the port of the network tester, other ports of the auxiliary testing interchanger are configured into an untagged mode, PVID on each port is different, and two ports connected to the network tester are configured into a tagged mode to release all virtual local area networks (VLAN) on other ports. The function of the testing method is that one gigabit interchanger is used as auxiliary testing equipment. The ports of two network testers in a testing process of multiple to-be-tested equipment only need to adopt by dividing the VLAN, and thus the network tester is greatly saved.

Description

A kind of switch product MINI LTT method of testing

Technical field

The present invention relates to product MINI LTT technical field of measurement and test, particularly relate to a kind of switch product MINI LTT method of testing.

Background technology

Switch is a kind of store-and-forward unit.Ethernet switch adopts storage forwarding (Store-Forward) technology or straight-through (Cut-Through) technology to realize the forwarding of information frame, also referred to as switch hub.The difference of switch and bridge is: switch ports themselves number is more, and data transmission efficiency is high, and forward delay is very little, and throughput is large, and Loss Rate is low, and overall performance of network strengthens, considerably beyond forwarding performance during common net bridge interconnection network.Be generally used for the local area network (LAN) of the identical type that interconnects.

MINI LTT (mini long time test) is for detecting potential defect before shipment, can be used for simulating the reliability of product in actual client's use procedure simultaneously, disclose the weakness that design, program, material or technique exist above.

During test, product to be measured surpasses five class unshielded twisted pairs and is connected with adopting between network tester, and each port of Devices to test is connected on above the port that a flow occurs together respectively.Each port of network tester configures a flow, and the flow of first port of network tester issues second port, and the flow of the second port issues the 3rd port, by that analogy! The flow of last port is sent to first port, so just achieves Devices to test and sends in MINI LTT test process and receive both direction and have flow.

Owing to testing in plant produced, the quantity of Devices to test is a large amount of.And adopt existing method of testing, if the production efficiency of factory will be ensured, a large amount of network testers certainly will be needed test, cause the increase of production cost.

Summary of the invention

The object of the present invention is to provide a kind of switch product MINI LTT method of testing, solve the problem that the network tester quantity of product MINI LTT method of testing needed under the prerequisite ensureing production efficiency of current switch is large.

For solving the problem, the technical solution used in the present invention is:

A kind of switch product MINI LTT method of testing, comprises the following steps:

Step one, is in turn connected on the port of accompanying test cross to change planes by each port of Devices to test, and two gigabit ports of changing planes accompanying test cross are connected on above two test ports of network tester;

Step 2, accompany test cross to change planes except the port being connected on network tester, remaining each port is configured to the pattern of untagged, the pvid that the configuration of each port is different, two port arrangement be connected on network tester are tagged pattern, all VLAN of other ports of letting pass;

Step 3, configuration testing stream on network tester, test stream adopts the message of fixing frame length, the configuration of the source MAC of described message and object MAC and VLAN enables flow by following following path when each Devices to test: from 1 mouthful of data flow entered from 2 mouthfuls out, 2 mouthfuls of data flow entered go out from 3 mouthfuls, the packet finally entered from last interface of Devices to test goes out from first of Devices to test interface again, so just makes the data that all there is equivalent above the reception of each interface of Devices to test and the both direction of transmission;

Step 4, utilizes network tester to send the study message of certain hour, for the forward-path of message in presumptive test process;

Step 5, start to carry out flow transmission, after the testing time of regulation terminates, check whether every bar test stream exists packet loss, if there is a stream to have packet loss, then test crash, otherwise tests successfully.

Adopt the beneficial effect that produces of technique scheme to be: the present invention will use a gigabit switch to be used as accompanying measurement equipment, what this programme used above accompany test cross to change planes uses the normal managed switches of performance on sale above market.Make multiple Devices to test in test process, only need the port of use two network testers by the mode dividing VLAN, thus save network tester greatly.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of switch product of the present invention MINI LTT method of testing embodiment.

Fig. 2 accompanies test cross to change planes and learning MAC address schematic diagram between switch to be measured.

Embodiment

In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

Fig. 1 shows a kind of switch product MINI LTT method of testing of the present invention embodiment: a kind of switch product MINI LTT method of testing, comprises the following steps:

Step one, is in turn connected on the port of accompanying test cross to change planes by each port of Devices to test, and two gigabit ports of changing planes accompanying test cross are connected on above two test ports of network tester;

Step 2, accompany test cross to change planes except the port being connected on network tester, remaining each port is configured to the pattern of untagged, the pvid that the configuration of each port is different, two port arrangement be connected on network tester are tagged pattern, all VLAN of other ports of letting pass;

Step 3, configuration testing stream on network tester, test stream adopts the message of fixing frame length, the configuration of the source MAC of described message and object MAC and VLAN enables flow by following following path when each Devices to test: from 1 mouthful of data flow entered from 2 mouthfuls out, 2 mouthfuls of data flow entered go out from 3 mouthfuls, the packet finally entered from last interface of Devices to test goes out from first of Devices to test interface again, so just makes the data that all there is equivalent above the reception of each interface of Devices to test and the both direction of transmission;

Step 4, utilizes network tester to send the study message of certain hour, for the forward-path of message in presumptive test process;

Step 5, start to carry out flow transmission, after the testing time of regulation terminates, check whether every bar test stream exists packet loss, if there is a stream to have packet loss, then test crash, otherwise tests successfully.

It is worthy of note, in the context of the present invention, accompany the switch surveyed only to need to use the normal managed switches of performance on sale above market, can the division of supported vlans, without the need to carrying out special configuration to accompanying test cross to change planes.

Following table is the configuration example of switch:

Port numbering	PVID	Behavior
			1	1011	Untagged：1011
2	1012	Untagged：1012
			3	1013	Untagged：1013
4	1014	Untagged：1014
			5	1015	Untagged：1015
…	…	…
			40	1050	Untagged：1050
47	1	Tagged：1011 to 1050
			48	1	Tagged：1011 to 1050

The flow configuration example of C: the port A of network tester is as following table (for a Devices to test):

src

dst

Vlan

Fixed Frame length

A	2	1011	64
				B	3	1012	64
C	4	1013	64
				D	5	1014	64
E	1	1015	64

The flow configuration example of the port B of network tester is as following table:

src	dst	Vlan	Fixed Frame length
				2	A	1012	64
3	B	1013	64
				4	C	1014	64
5	D	1015	64
				1	E	1011	64

Because just started the situation that inundation appears in exchange opportunity to be measured, therefore need first to send in the process of test the learning MAC address that flow makes to accompany test cross to change planes and switch to be measured all can be correct.When the flow of port A arrives the port one of accompanying test cross to change planes, the VLAN that this flows by exchange opportunity peels off, and then sent from port one by stream and arrive switch to be measured, then exchange opportunity to be measured writes corresponding with port one for MACA in MAC Address list item.When the flow of port B arrives the port 2 of accompanying test cross to change planes, the VLAN that this flows by exchange opportunity peels off, then stream is sent from port 2 and arrive switch to be measured, exchange opportunity to be measured is by MAC2 and port 2 correspondence write MAC Address list item, other ports also can be corresponding study to MAC Address, as Fig. 2.

Next, in test process, the flow that port A and port B sends can forward by the path imagined in advance because of there is mac address table above switch to be measured.Like this in MINI LTT test process, two ports of Devices to test can both keep constant flow.Whether can also add up every bar test stream after test terminates has packet loss to occur.

Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and execution mode, these amendments and execution mode will drop within spirit disclosed in the present application and spirit.More particularly, in the scope of, accompanying drawing open in the application and claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.

Claims (1)

1. a switch product MINI LTT method of testing, is characterized in that comprising the following steps:

Step one, is in turn connected on the port of accompanying test cross to change planes by each port of Devices to test, and two gigabit ports of changing planes accompanying test cross are connected on above two test ports of network tester;

Step 2, accompany test cross to change planes except the port being connected on network tester, remaining each port is configured to the pattern of untagged, the pvid that the configuration of each port is different, two port arrangement be connected on network tester are tagged pattern, all VLAN of other ports of letting pass;

Step 3, configuration testing stream on network tester, test stream adopts the message of fixing frame length, the configuration of the source MAC of described message and object MAC and VLAN enables flow by following following path when each Devices to test: from 1 mouthful of data flow entered from 2 mouthfuls out, 2 mouthfuls of data flow entered go out from 3 mouthfuls, and the packet finally entered from last interface of Devices to test goes out from first of Devices to test interface again;

Step 4, utilizes network tester to send the study message of certain hour, for the forward-path of message in presumptive test process;

Step 5, start to carry out flow transmission, after the testing time of regulation terminates, check whether every bar test stream exists packet loss, if there is a stream to have packet loss, then test crash, otherwise tests successfully.