CN101150446B - A testing method for marking mode EVPLAN address learning function - Google Patents
A testing method for marking mode EVPLAN address learning function Download PDFInfo
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Abstract
The invention relates to a testing method for address learning function of a mark pattern EVPLAN, which includes the following steps: 1.1) at least three PE nodes are collocated and a mark pattern EVPLAN constituted by the nodes is created; 1.2) different MAC addresses are set for the ports of corresponding devices of clients and Analyser (4) and physical connections between the addresses and each PE node are established; 1.3) the Analyser (4) sends Ethernet frames containing VLAN mark to the ports and records corresponding receptions; 1.4) whether the mark pattern EVPLAN provides corresponding address learning function is judged according to the requirements for address learning function and a first and a second or even more receptions between the MAC addresses set in the former step. The method can effectively validate whether the mark pattern EVPLAN created in the MSTP network environment has address learning function or not.
Description
Technical field
The present invention relates to communication, network and measuring technology, be specifically related to the method for testing of the marking mode Tagged Mode Ethernet VPN EVPLAN address learning function created in the MSTP MSTP network environment.
Background technology
People's Republic of China's communications industry standard " based on MSTP (MSTP) specification requirement-embedded MPLS funtion part of SDH ", just " provider edge equipment PE node ", " the nucleus equipment P of operator node ", " traffic classification ", " multi protocol label exchange MPLS layer is handled " and " L 2 virtual private network L2VPN reference model " have proposed related request.PE node in the present specification, P node, traffic classification, MPLS layer handle and the L2VPN reference model meets this standard.
MSTP MSTP based on the embedded MPLS function of SDH (Synchronous Digital Hierarchy) SDH is a kind of network equipment, fully utilized the network technologies such as pseudo wire emulation PWE3 of SDH, IEEE 802.3 Ethernets, MPLS, edge-to-edge.The L2VPN that uses such MSTP to create, inlet IngressPE node receives the native client Ethernet data from User Network Interface UNI, directly or through two layers of exchange converge back interpolation tunnel tunnel mark and pseudo-line PW mark, the MPLS grouping that forms is fitted to SDH virtual container cascaded series VCG then and transmits by Generic Framing Procedure GFP/ (peer-peer protocol PPP/ High-Level Data Link Control HDLC)/SDH link access protocol LAPS encapsulation.Outlet EgressPE node recovers GFP or PPP/HDLC or LAPS frame from VCG, resolve the MPLS grouping, ejects tunnel mark and PW mark, restores client's Ethernet data, and sends to customer equipment through UNI.Between Ingress PE node and Egress PE node, may there be one or more P nodes, this or these P node is only carried out MPLS and is grouped into the encapsulation of GFP/ (PPP/HDLC)/LAPS and the exchange of MPLS grouping tunnel mark, but does not revise the PW mark and the payload part of MPLS grouping.
Can in the network of use, create marking mode EVPLAN based on the MSTP foundation of the embedded MPLS function of SDH, its business reference model is as shown in Figure 1: a PE node PE_1, the 2nd PE node PE_2, the 3rd PE node PE_3 are three PE nodes of EVPLAN, and MSTP network 1 is for providing VCG path between the PE node.The EVPLAN business comprises PE_1, PE_2, the PE_3 node stream according to first virtual LAN VLAN _ 1 labeled bracketing.Every PE node is that EVPLAN sets up an independently virtual switch instance VSI, and all VSI of same EVPLAN connect and compose an emulated lan by PW.The first customer equipment CE_1, the second customer equipment CE_2, the 3rd customer equipment CE_3 are three customer equipments of EVPLAN business, are connected respectively to PE_1, PE_2, PE_3 node.The Ethernet data of mark VLAN_1 between the customer equipment CE is transmitted by emulated lan 2, and therefore, for same EVPLAN was professional, emulated lan _ 2 showed as an independently LAN.
From the logic connecting relation of network end-to-end, as shown in Figure 2, EVPLAN is made up of two bridge modules 21 and an emulated lan module 3.For marking mode EVPLAN, every EVPLAN can comprise one or more VLAN.Bridge module 21 comprises local area network (LAN) MAC address learning function, is used for determining the forwarding route of ethernet frame.Will be from particular port ethernet frame that receive, that contain unknown target MAC (Media Access Control) address by the every other port of inundation flooding to same bridge module 21.If the target MAC (Media Access Control) address of the ethernet frame that a certain port receives equals the source MAC of the ethernet frame of particular port reception, this ethernet frame will directly send from particular port, no longer be forwarded to other ports.
In the EVPLAN environment, the VSI of PE intra-node is a logic entity, comprises EVPLAN transponder module 22 and emulated lan interface 2122.VSI has terminated and has connected the PW of other PE nodes VSI, and the direct-connected circuit AC of PE node to CE equipment also terminated simultaneously.How VSI will be forwarded to the forwarding information base of other PE nodes of same EVPLAN by the CE equipment Ethernet data that AC receives if having comprised, also comprised how will be forwarded to the forwarding information base of AC by the Ethernet data that PW receives simultaneously.Forwarding database can generate by dynamical fashion or static mode, and wherein dynamical fashion can be source MAC study, and static mode can be to generate by configuration.The PE node is always correctly transmitted customer traffic to the destination according to forwarding information base.
The bridge module 21 of PE intra-node meets IEEE 802.1D standard, is responsible for the forwarding of local service, and the source MAC on the study AC is also learnt the source MAC of emulated lan interface 2122, but can not learnt the source MAC on the PW.VSI transponder/EVPLAN transponder module 22 is responsible for the PE data between nodes and is transmitted, only learn to receive by PW, from the source MAC of other VSI transponders/EVPLAN transponder module 22, can not learn the source MAC that receives by AC.EVPLAN need support clean culture, multicast, broadcast capability, but VSI exists certain restriction: VSI only to allow and will be forwarded to the PW that connects other VSI by the mac frame that emulated lan interface 2122 receives when realizing these functions, to be forwarded to emulated lan interface 2122 by the mac frame that PW receives, forbid that any mac frame that will receive by PW is forwarded to any PW.
Marking mode EVPLAN require to be supported the processing to the VLAN mark, only belongs between the EVPLAN transponder of same VLAN and just has the PW connection.Ingress PE node flows according to the VLAN labeled bracketing of client's ethernet frame, and stream is connected to specific VSI.The VSI of independent VLAN mode of learning IVL searches address table by VLAN+MAC and determines to send PW; The VSI that shares VLAN mode of learning SVL searches address table by MAC and determines to send PW.The PE node must be carried out the inundation function according to the VLAN broadcast domain, correctly transmits the customer traffic of broadcasting, multicast, unknown destination address.The VLAN mark that the VSI of Egress PE node receives according to PW is selected output AC, and ethernet frame is sent to customer equipment.
In the MSTP network environment, use define the primary characteristic that symbol both kept local service of customer VLAN mark as the EVPLAN business, can realize the service management that becomes more meticulous again, but address learning function for marking mode EVPLAN, lack the effective method of inspection at present, hindered applying of such EVPLAN business.The present invention proposes a kind of method of testing, can be used for the verification mark mode EVPLAN address learning function, " based on MSTP (MSTP) specification requirement-embedded MPLS funtion part of the SDH " related request of determining whether corresponding L2VPN meets.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of method of testing, solve the verification of correctness problem of the marking mode EVPLAN address learning function of creating in the MSTP network environment.
Above-mentioned technical problem of the present invention solves like this, and a kind of method of testing of marking mode EVPLAN address learning function is characterized in that, may further comprise the steps:
1.1) at least three PE nodes of configuration, create the marking mode EVPLAN that constitutes by them;
1.2) different MAC Address is set and sets up it and the physical connection of each PE node for the data network performance analyzer port;
1.3) described data network performance analyzer sends to port and contain the ethernet frame of VLAN mark and write down corresponding reception condition;
1.4) according to specify in the requirement of address learning function and the previous step between the MAC Address send first and once more or the reception condition that repeatedly sends judge whether this marking mode EVPLAN possesses corresponding address learning function.
In these cases, meet following situation and possess corresponding address learning function: before 1. transmission was address learning first, the data network performance analyzer port that is connected with other all PE nodes except that sending the PE node all received the described ethernet frame of transmission.2. once more described or repeatedly send be address learning after, only the data network performance analyzer port that is connected with target P E node receives the described ethernet frame of transmission, and other ports all can not receive.
According to method of testing provided by the invention, described PE node must be more than three or three, wherein three just can minimum assurance said method execution.
According to method of testing provided by the invention, all data network performance analyzer port mac frames are carried out first and transmitting-receiving test once more, and save principle by the testing procedure sum and organize in order.
According to method of testing provided by the invention, once more described or repeatedly send and comprise from source MAC and send the ethernet frame that contains the VLAN mark to source MAC to target MAC (Media Access Control) address or from target MAC (Media Access Control) address.
According to method of testing provided by the invention, described PE node comprises a User Network Interface UNI, described step 1.1 at least) comprising:
1.1.1) two label switched path LSP of corresponding two closures of foundation connect between described PE node;
1.1.2) be that EVPLAN sets up VSI at each described PE intra-node;
1.1.3) two PW of corresponding two closures of foundation connect between described PE node VSI;
1.1.4) dispose the classifying rules of each described PE node UNI stream.
According to method of testing provided by the invention, described VSI is that full connection or level are cut apart syndeton.
According to method of testing provided by the invention, described step 1.3) the VLAN mark in equals or is not equal to described particular vlan mark.
According to method of testing provided by the invention, described EVPLAN comprises one or more VLAN marks, described particular vlan mark is positioned at wherein, when described EVPLAN comprises a plurality of VLAN mark, EVPLAN further is subdivided into a plurality of VLAN subdomains, can carries out the test of appropriate address learning functionality each VLAN subdomain.
According to method of testing provided by the invention, described step 1.2) comprising:
1.2.1) set up corresponding customer equipment or data network performance analyzer physical connection to each PE node UNI;
1.2.2) be that data network performance analyzer (4) port that is connected to each PE node UNI is provided with different MAC Address.
According to method of testing provided by the invention, described data network performance analyzer can be one, is connected with a plurality of PE nodes respectively by its different port.
According to method of testing provided by the invention, described data network performance analyzer can be a plurality of, connects with different PE nodes respectively by port separately.
According to method of testing provided by the invention, described data network performance analyzer can be simulated customer equipment, possesses the ethernet frame analytic function.
According to method of testing provided by the invention, described PE node can comprise not only a UNI and the corresponding port physical connection of described data network performance analyzer, described corresponding port can use a VLAN mark, then should test by same AC by the correspondence port, corresponding port on same AC all can receive and send to any ethernet frame of this AC, therefore its reception condition is corresponding changes to some extent, the a plurality of data network performance analyzer ports that are connected with target P E node still do not influence this EVPLAN and possess address learning function once more above-mentioned or can receive ethernet frame simultaneously when repeatedly sending.
Method of testing provided by the invention, configuration makes up marking mode EVPLAN, utilize the transmission of data network performance analyzer or client to contain ethernet frame and record and the data network performance analyzer port of each PE node connection or the reception condition of corresponding client of VLAN mark, can verify effectively according to the requirement of reception condition and address learning function whether this marking mode EVPLAN of creating possesses corresponding address learning function in the MSTP network environment.
Description of drawings
Further the present invention is described in detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is a marking mode EVPLAN business reference model schematic diagram in the MSTP network environment.
Fig. 2 is the logic connecting relation of end-to-end EVPLAN.
Fig. 3 is the marking mode EVPLAN address learning function test case.
Embodiment
At first, be the method for testing principle of example explanation marking mode EVPLAN address learning function of the present invention with 3 PE nodes, comprise step:
A, configuration PE_1, PE_2, PE_3 node are created marking mode EVPLAN;
B, configuration data network performance analysis instrument send the ethernet frame that comprises the VLAN mark to port;
The reception condition of C, analysis data network performance analyzer port.
Described steps A also comprises:
A1, PE_1, PE_2, PE_3 node possess the PE nodal function of " based on MSTP (MSTP) specification requirement-embedded MPLS funtion part of SDH " regulation;
A2, PE_1, PE_2, PE_3 node respectively comprise a User Network Interface UNI;
A3, the label switched path LSP that sets up between PE_1, PE_2, the PE_3 node connect, and two closures between any two nodes are respectively set up a LSP;
A4, be that EVPLAN sets up VSI at PE_1, PE_2, PE_3 intra-node;
A5, the PW that sets up between PE_1, PE_2, the PE_3 node VSI connect, and two closures between any two VSI are respectively set up a PW;
The classifying rules of A6, configuration PE_1, PE_2, PE_3 node UNI stream.
Described steps A 6 also comprises:
UNI is according to customer VLAN mark assignment AC, and the stream that will comprise the particular vlan mark is chosen VSI.
Described step B also comprises:
B1, set up the physical connection of data network performance analyzer to PE_1, PE_2, PE_3 node UNI;
B2, the port that is connected to PE_1, PE_2, PE_3 node UNI for the data network performance analyzer are provided with different MAC Address;
B3, data network performance analyzer send the ethernet frame of particular vlan mark successively to the port that is connected to PE_1, PE_2, PE_3 node UNI;
B3, data network performance analyzer send the ethernet frame of nonspecific VLAN mark to the port that is connected to PE_1, PE_2, PE_3 node UNI successively;
Described step C also comprises:
C1, the every port of record data network performance analysis instrument sends when comprising the ethernet frame of VLAN mark the reception condition of two other port successively;
The requirement whether C2, the transmission of analyzing the data network performance analyzer port and reception condition meet MSTP network environment marking mode EVPLAN address learning function.
Adopt method of the present invention, can verify marking mode EVPLAN address learning function in the MSTP network environment.
Further, be example with 3 PE nodes, as shown in Figure 3, describe marking mode EVPLAN address learning function method of testing in the MSTP network environment of the present invention in detail, the concrete operations step is as follows:
Step 1: use the two-way connection PE_1 of optical link, PE_2, PE_3 node, and the two-way VCG that sets up between these nodes connects;
Step 2: the LSP that sets up between PE_1, PE_2, the PE_3 node connects; Wherein, the PE_1 node is LSP_1 to the PE_2 node, and the PE_2 node is LSP_2 to the PE_1 node; The PE_1 node is LSP_3 to the PE_3 node, and the PE_3 node is LSP_4 to the PE_1 node; The PE_2 node is LSP_5 to the PE_3 node, and the PE_3 node is LSP_6 to the PE_2 node;
Step 3: create marking mode EVPLAN and comprise (PE_1, port _ 1+VLAN_1), (PE_2, port _ 2+VLAN_1) and (PE_3, port _ 3+VLAN_1);
Step 4: the port of data network performance analyzer 4 _ 1 Ethernet is connected to PE_1 node port _ 1, and port _ 2 Ethernets are connected to PE_2 node port _ 2, and port _ 3 Ethernets are connected to PE_3 node port _ 3; It is respectively LAN_1, LAN_2 and LAN_3 that described Ethernet connects.
Step 5: the MAC Address that data network performance analyzer 4 ports _ 1 is set is SA_1, and the MAC Address of port _ 2 is SA_2, and the MAC Address of port _ 3 is SA_3;
Step 6: data network performance analyzer 4 sends to port _ 1 and comprises the ethernet frame that VLAN_1 mark, MAC destination address are respectively SA_2 and SA_3;
Step 7: observe and the reception condition of record data network performance analysis instrument 4 ports: port _ 2,3 can both receive comprise the VLAN_1 mark, the MAC destination address is the ethernet frame of SA_2 or SA_3; Port _ 1 can not receive the ethernet frame that oneself sends;
Step 8: data network performance analyzer 4 sends to port _ 2 and comprises the ethernet frame that VLAN_1 mark, MAC destination address are respectively SA_1 and SA_3;
Step 9: observe and the reception condition of record data network performance analysis instrument 4 ports: port _ 1 can receive comprise the VLAN_1 mark, the MAC destination address is the ethernet frame of SA_1 or SA_3; Port _ 3 receive comprise the VLAN_1 mark, the MAC destination address is the ethernet frame of SA_3; Port _ 2 can not receive the ethernet frame that oneself sends; This step shows that the SA_1 address learnt by the emulated lan of EVPLAN correspondence;
Step 10: data network performance analyzer 4 sends to port _ 3 and comprises the ethernet frame that VLAN_1 mark, MAC destination address are respectively SA_1 and SA_2;
Step 11: observe the also reception condition of record data network performance analysis instrument 4 ports: port _ 1 can only receive the ethernet frame that comprises VLAN_1 mark, MAC destination address SA_1; Port _ 2 can only receive the ethernet frame that comprises VLAN_1 mark, MAC destination address SA_2; Port _ 3 can not receive the ethernet frame that oneself sends; This step shows that the SA_2 address learnt by the emulated lan of EVPLAN correspondence;
Step 12: change the VLAN mark that data network performance analyzer 4 ports _ 1, port _ 2 and port _ 3 send ethernet frame successively, repeating step 6,8,10;
Step 13: observe the also reception condition of record data network performance analysis instrument 4 ports: port _ 1, port _ 2 and port _ 3 all can not receive any ethernet frame that does not comprise the VLAN_1 mark.
Above-mentioned test case can further expand and improve, and includes, but are not limited to: the PE node of EVPLAN can be more than 3, and VSI selects to adopt full syndeton full mesh or level to cut apart syndeton split horizon; Same EVPLAN can comprise a plurality of VLAN marks, and EVPLAN further is subdivided into a plurality of VLAN subdomains, and carries out operations such as inundation, multicast, broadcasting according to the VLAN subdomain; The flow classification rule of EVPLAN business can be selected the mark based on VLAN, is assigned to same AC from a plurality of ports of PE node ethernet frame that receive, that have identical VLAN mark.
Therefore, all equalizations of being done according to claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.
Claims (11)
1. the method for testing of a marking mode Ethernet virtual special local area network (EVPLAN) address learning function is characterized in that, may further comprise the steps:
1.1) configuration at least three edge devices (PE) node, create the marking mode EVPLAN that constitutes by them;
1.2) different medium access control (MAC) address is set and sets up it and the physical connection of each PE node for data network performance analyzer (4) port;
1.3) described data network performance analyzer (4) sends to port and contain the ethernet frame of Virtual Local Area Network mark and write down corresponding reception condition;
1.4) whether transmission and the reception condition of analyzing described data network performance analyzer port meet following situation, as if meeting, described marking mode EVPLAN has address learning function; Otherwise described marking mode EVPLAN does not have address learning function; Described situation is: send first before the address learning, the data network performance analyzer port that is connected with other all PE nodes except that sending the PE node all receives the described ethernet frame of transmission, and behind address learning, carry out once more or repeatedly transmission, only the data network performance analyzer port that is connected with target P E node receives the described ethernet frame of transmission, and other ports all can not receive.
2. according to the described method of testing of claim 1, it is characterized in that, once more described or repeatedly send and comprise from source MAC and send the ethernet frame that contains the VLAN mark to source MAC to target MAC (Media Access Control) address or from target MAC (Media Access Control) address.
3. according to the described method of testing of claim 1, it is characterized in that described PE node comprises a User Network Interface (UNI), described step 1.1 at least) comprising:
1.1.1) two label switched paths (LSP) of corresponding two closures of foundation connect between described PE node;
1.1.2) be that EVPLAN sets up virtual switch instance (VSI) at each described PE intra-node;
1.1.3) two pseudo-lines (PW) of corresponding two closures of foundation connect between described PE node VSI;
1.1.4) dispose the classifying rules of each described PE node UNI stream.
4. according to the described method of testing of claim 3, it is characterized in that described VSI is that full connection or level are cut apart syndeton.
5. according to the described method of testing of claim 3, it is characterized in that described step 1.1.4) also comprise described PE node UNI according to the direct-connected circuit of customer VLAN mark assignment (AC), and the stream that will comprise the particular vlan mark is chosen VSI.
6. according to the described method of testing of claim 1, it is characterized in that described EVPLAN comprises one or more VLAN marks.
7. according to the described method of testing of claim 5, it is characterized in that described EVPLAN comprises one or more VLAN marks, described particular vlan mark is positioned at wherein.
8. according to the described method of testing of claim 5, it is characterized in that described step 1.3) in the VLAN mark equal or be not equal to described particular vlan mark.
9. according to the described method of testing of claim 1, it is characterized in that described step 1.2) comprising:
1.2.1) set up the data network performance analyzer to the physical connection of each PE node UNI;
1.2.2) be that data network performance analyzer (4) port that is connected to each PE node UNI is provided with different MAC Address.
10. according to claim 1 or 8 described method of testings, it is characterized in that described data network performance analyzer (4) can be one, by its different port respectively with a plurality of PE node UNI physical connections.
11., it is characterized in that described data network performance analyzer (4) can be a plurality of according to claim 1 or 8 described method of testings, by port separately respectively with different PE node UNI physical connections.
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| CN105530156A (en) * | 2014-10-22 | 2016-04-27 | 深圳市中兴微电子技术有限公司 | Virtual local area network tag processing device and method of ONU (Optical Network Unit) |
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| US6639901B1 (en) * | 2000-01-24 | 2003-10-28 | 3Com Corporation | Apparatus for and method for supporting 802.1Q VLAN tagging with independent VLAN learning in LAN emulation networks |
| JP2004072160A (en) * | 2002-08-01 | 2004-03-04 | Matsushita Electric Ind Co Ltd | Switching method and apparatus, and computer program |
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| US6639901B1 (en) * | 2000-01-24 | 2003-10-28 | 3Com Corporation | Apparatus for and method for supporting 802.1Q VLAN tagging with independent VLAN learning in LAN emulation networks |
| JP2004072160A (en) * | 2002-08-01 | 2004-03-04 | Matsushita Electric Ind Co Ltd | Switching method and apparatus, and computer program |
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