CN1968208A - Wireless service differentiation method and wireless transmission device - Google Patents

Wireless service differentiation method and wireless transmission device Download PDF

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Publication number
CN1968208A
CN1968208A CNA200610140358XA CN200610140358A CN1968208A CN 1968208 A CN1968208 A CN 1968208A CN A200610140358X A CNA200610140358X A CN A200610140358XA CN 200610140358 A CN200610140358 A CN 200610140358A CN 1968208 A CN1968208 A CN 1968208A
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vlan
message
port
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different
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CN100466626C (en
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何贵洲
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Abstract

The invention relates to a method for differencing wireless services and relative wireless transmitter, wherein it comprises that: building the relationship between different services and different virtual local network VLAN marks; when port transmits report, based on its service, finding relative VLAN mark, adding found VLAN mark into said report.

Description

Distinguish the method and the radio transmission apparatus of wireless traffic
Technical field
The present invention relates to field of wireless transmission, particularly distinguish the method and the radio transmission apparatus of wireless traffic.
Background technology
Along with the development of 3G technology, the demand of bandwidth is increasing, adopt Fast Ethernet (FE, FastEthernet), gigabit Ethernet (GE, Gigabit Ethernet) networking become inexorable trend.At present, switch, metropolitan area multi-service transmitting network have become the wireless network load mode of main flow.But switch and metropolitan area multi-service transmitting network all are two-layer switching equipments, though can isolate collision domain, improve the performance of each port, can not isolate broadcast domain, can not carry out the division of subnet.
As shown in Figure 1, Fig. 1 is wireless access network networking structure figure.Owing to adopt two straton nets, make all wireless access networks (RAN, Radio Access Network) business of side can't distinguish wireless traffic all at a broadcast domain.Owing to need walk different service channels when this shortcoming of prior art, the business of different base station transmit by multi-service transport platform (MSTP, Multi-Service Transport Platform), so that bandwidth can not share, and wasted line resource; And need accept business with a plurality of ports in the controller side, consume a large amount of port resources from different base station.
Summary of the invention
In view of this, a main purpose of the embodiment of the invention is: a kind of method of distinguishing wireless traffic is provided, and this method may further comprise the steps: first corresponding relation of setting up different business and different virtual LAN VLAN sign; When the port transmission message, determine corresponding VLAN sign according to professional under this message and first corresponding relation, determined VLAN sign is added in this message.
Another main purpose of the embodiment of the invention is: a kind of radio transmission apparatus of distinguishing wireless traffic is provided, this equipment comprises: memory module and port Executive Module, wherein, described memory module is used to preserve first corresponding relation of different business and different VLAN signs;
The port Executive Module when the port transmission message, obtains first correspondence relationship information from memory module, determine corresponding VLAN sign according to professional under this message and first corresponding relation, and determined VLAN sign is added in this message.
As seen, the method and the radio transmission apparatus of the differentiation wireless traffic that the present invention proposes can be distinguished wireless traffic.Thereby in the subsequent transmission process, make different business can converge transmission, realize statistic multiplexing, save bandwidth resources; Simultaneously, saved the port resource of base station controller because the controller side no longer needs to accept business from different base station with a plurality of ports.
Description of drawings
Fig. 1 is wireless access network networking structure figure;
Fig. 2 is the method flow diagram of distinguishing wireless traffic and sending service message from TAG attribute port;
Fig. 3 receives the method flow diagram of service message for port.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
The present invention has used the sign effect of vlan technology in order to solve the defective that wireless traffic can't be distinguished in the prior art, distinguishes and mark the dissimilar of business.Vlan technology logically is divided into different broadcast domains with the local area network (LAN) of a physics, or is called VLAN, and each VLAN includes one group of computer workstation that same requirements is arranged.Vlan technology is to propose for broadcast issue and the safety problem that solves Ethernet, it has added the VLAN head on the basis of Ether frame, comprised the VLAN sign in the VLAN head, utilize the VLAN sign that the user is divided into littler working group, two layers of exchanging visit of user between the restriction different operating group, each working group is exactly a VLAN.
The method of the differentiation wireless traffic that the present invention proposes is: at first set up first corresponding relation that different business and different VLAN identify.When the port transmission message, determine its corresponding VLAN sign according to professional under this message and first corresponding relation, determined VLAN sign is added in this message.
Different business comprises with the corresponding relation of different VLAN sign: first corresponding relation of the IP five-tuple information of different business and different VLAN sign, and first corresponding relation that identifies of the handled different business of port and different VLAN.
When the port transmission message, judge at first whether this message is broadcasting packet: if, then duplicate this message, search first corresponding relation of the handled different business of port and different VLAN sign, determine corresponding VLAN sign, add all VLAN signs in each message that duplicates respectively; If not, then search first corresponding relation of IP five-tuple information with the different VLAN signs of different business, determine corresponding VLAN sign, during this VLAN sign is joined message.
In the said method, can also further set up second corresponding relation of different business and different VLAN priority, after obtaining the VLAN sign of message correspondence, further search second corresponding relation of different business and different VLAN priority, obtain the VLAN priority of message.
Different business comprises with second corresponding relation of different VLAN priority: three layers of priority of different business and second corresponding relation of different VLAN priority, and second corresponding relation of handled different business of port and the highest VLAN priority.
When the port transmission message, judge at first whether this message is broadcasting packet: if, then duplicate this message, search second corresponding relation of handled different business of port and the highest VLAN priority, determine the highest VLAN priority of different business correspondence that self handles, the highest all VLAN priority is added respectively in each message that duplicates; If not, then search second corresponding relation of three layers of priority with the different VLAN priority of different business, determine corresponding VLAN priority, during this VLAN priority is joined message.
Owing in system, need many configuration orders at each VLAN sign.In order to reduce the configuration of network, can adopt the nested mode of outer VLAN identification, carry out nested with an outer VLAN identification a plurality of VLAN signs.Radio transmission apparatus is further preserved the 3rd corresponding relation of a plurality of VLAN signs and an outer VLAN identification; Port sends before the message, further searches the 3rd corresponding relation, determines that the VLAN of message identifies pairing outer VLAN identification, and it is joined message.
The radio transmission apparatus of the differentiation wireless traffic that the present invention proposes comprises memory module and port Executive Module.
Memory module is used to preserve first corresponding relation of different business and different VLAN signs;
The port Executive Module when the port transmission message, obtains first correspondence relationship information from memory module, determine corresponding VLAN sign according to professional under this message and first corresponding relation, and determined VLAN sign is added in this message.
Memory module is further used for preserving second corresponding relation of different business and different VLAN priority;
The port Executive Module further when the port transmission message, obtains second correspondence relationship information from memory module, according to professional under this message and second corresponding relation, determine the VLAN priority that it is corresponding, and determined VLAN priority is added in this message.
Memory module is further used for preserving the 3rd corresponding relation of a plurality of VLAN signs and an outer VLAN identification;
The port Executive Module, further when the port transmission message, from memory module, obtain the 3rd correspondence relationship information, according to determined VLAN sign and the 3rd corresponding relation, determine corresponding outer layer VLAN sign, during determined outer VLAN identification is joined message.
Because the message of transmission is not with the VLAN sign in the prior art, in order to make the present invention and existing systems compatibility, is three kinds of attributes of port definition: only allow the message of band VLAN sign to come in and go out, be designated as the TAG attribute; Only allow not to be with the message of VLAN sign to come in and go out, be designated as the UNTAG attribute; Allow the message of any kind of to come in and go out, be designated as the HYBRID attribute.In the memory module of radio transmission apparatus, further preserve the attribute information of port, write down the attribute of each port; The port Executive Module further when the port transmission message, obtains the attribute information of port from memory module, according to port attribute, determine that can this port transmit message.
Send before the message, need to judge whether the attribute of port is consistent with the attribute of message.When port is the TAG attribute,, then send this message if message has the VLAN sign; Otherwise abandon this message.When port is the UNTAG attribute,, then send this message if message does not have the VLAN sign; Otherwise abandon this message.When port was the HYBRID attribute, no matter whether port had the VLAN sign, all with its transmission.
Because VLAN is identified at and accounts for 12bit in the heading, its value space is 0～4095, can not satisfy the requirement that other professional VLAN of all needs marking classes identifies uniqueization in a bigger Access Network networking scope.For this reason, each ethernet port of base station controller can be divided into a vlan domain, the VLAN sign definition in the same vlan domain scope can not be identical, and the sign of the VLAN between the same area can not overlap, and has so just expanded the action scope of VLAN.
Referring to 2, Fig. 2 is the method flow diagram of distinguishing wireless traffic and sending service message from TAG attribute port.
Step 201: port is received message from the upper-layer protocol processing module, is ready for sending.
Step 202: judge whether the message that is ready for sending is broadcasting packet: if then execution in step 203; Otherwise execution in step 204.
Step 203: copy packet, search this port and handle professional corresponding VLAN sign, the VLAN sign that finds and the highest VLAN priority are added message after duplicating respectively, send message, process ends.
Step 204: search its corresponding VLAN sign according to the IP five-tuple of message.For the message that does not need the tagged traffic classification, can find invalid VLAN sign.
Step 205: search its corresponding VLAN priority according to three layers of priority of message.
Step 206: whether the VLAN attribute of judging message is consistent with the VLAN attribute of port.Search the attribute information of port, this moment, port was the TAG attribute, and the message that promptly only allows to have the VLAN sign is come in and gone out.If find effective VLAN sign in the step 204, then this message has the VLAN sign, and message attribute is consistent with port attribute, execution in step 207.If find invalid VLAN sign in the step 204, then this message is not with the VLAN sign, and message attribute and port attribute are inconsistent, execution in step 208.
Step 207: the VLAN sign and the VLAN priority of this message are joined message, continue execution in step 209.
Step 208: abandon this message, process ends.
Step 209: search the corresponding relation of VLAN sign and outer VLAN identification, judge whether this VLAN sign is nested with outer VLAN identification: if then execution in step 210; Otherwise execution in step 211.
Step 210: the outer VLAN identification that finds is joined message.
Step 211: message is sent process ends from port.
For the port of UNTAG attribute, if the message that is ready for sending finds effective VLAN sign, then message attribute and port attribute are inconsistent, abandon this message; If the message that is ready for sending finds invalid VLAN sign, then message attribute is consistent with port attribute, directly sends this message.
For the message of HYBRID attribute, whether the message that no matter is ready for sending finds effective VLAN sign, all this message is sent.If message has VLAN sign, the back that then VLAN sign and the outer VLAN identification that needs joined message sends.If message does not have the VLAN sign, then with its direct transmission.
Referring to Fig. 3, Fig. 3 receives the method flow diagram of service message for port.
This moment, port may be any one in TAG attribute, UNTAG attribute or the HYBRID attribute.Message may be other message of marking class, promptly with the message of VLAN sign; Also may be not have other message of marking class, promptly not with the message of VLAN sign.
Step 301: port is received message.
Step 302: whether the VLAN attribute of judging message is consistent with the VLAN attribute of port.That is: search the attribute information of port, determine this port allow to come in and go out message of which kind of type; And whether have the VLAN sign according to message, judge whether the two attribute is consistent.If then execution in step 303; Otherwise execution in step 304;
Step 303: judge whether to exist two-layer VLAN sign nested: if then execution in step 305; Otherwise execution in step 306.
Step 304: abandon this message, process ends.
Step 305: peel off the outer VLAN identification of this message, continue execution in step 307.
Step 306: judge whether this message exists the VLAN sign: if then execution in step 307; Otherwise execution in step 308.
Step 307: take out the VLAN sign, message is carried out traffic classification and finishes respective handling, continue execution in step 309 based on this VLAN sign.
Step 308: three layers of sign based on message are carried out traffic classification and are finished respective handling message.
Step 309: judge whether this message is the control protocol message: if then execution in step 310; Otherwise execution in step 311.
Step 310: the message up sending protocol process module that will carry the VLAN sign carries out subsequent treatment, process ends.
Step 311: the message that will not carry the VLAN sign carries out follow-up forwarding, process ends.
By the above embodiments as seen, the method and the radio transmission apparatus of the differentiation wireless traffic that the present invention proposes can be distinguished different wireless traffics, and be the different VLAN priority of service marker.Follow-up when message transmissions, different business can converge transmission, realizes statistic multiplexing, saves bandwidth, saves the port resource of side of base station controller simultaneously.In addition, the message of different VLAN priority can transmit on the net transmission discriminatively, has guaranteed the QoS of high priority message.

Claims (14)

1, a kind of method of distinguishing wireless traffic is characterized in that, this method may further comprise the steps:
Set up first corresponding relation of different business and different virtual LAN VLAN sign;
When the port transmission message, determine corresponding VLAN sign according to professional under this message and first corresponding relation, determined VLAN sign is added in this message.
2, method according to claim 1 is characterized in that, the described different business of setting up comprises with first corresponding relation of different VLAN signs: first corresponding relation of setting up the Internet IP five-tuple information and the different VLAN sign of different business;
When the port transmission message, further judge whether this message is broadcasting packet, if not, then continue to carry out the step of determining corresponding VLAN sign, comprise: port obtains the IP five-tuple information in the described message, according to described first corresponding relation of IP five-tuple information searching that is obtained, determine corresponding VLAN sign.
3, method according to claim 1 is characterized in that, the described different business of setting up comprises with first corresponding relation of different VLAN signs: first corresponding relation of setting up handled different business of port and different VLAN sign;
When the port transmission message, further judge whether this message is broadcasting packet, if then continue to carry out the step of determining corresponding VLAN sign, comprise: port is determined all VLAN signs of the different business correspondence that self handles according to described first corresponding relation;
The described step that determined VLAN sign is added in this message comprises: port duplicates described message, and determined all VLAN signs are added in each message that duplicates respectively.
4, method according to claim 1 is characterized in that, this method further comprises:
Set up second corresponding relation of different business and different VLAN priority;
When the port transmission message, further comprise: according to professional under this message and second corresponding relation, determine the VLAN priority that it is corresponding, determined VLAN priority is added in this message.
5, method according to claim 4 is characterized in that, the described different business of setting up comprises with second corresponding relation of different VLAN priority: set up three layers of priority of different business and second corresponding relation of different VLAN priority;
When the port transmission message, further judge whether this message is broadcasting packet, if not, then continue to carry out the step of determining corresponding VLAN priority, comprise: port obtains three layers of precedence information in the described message, search described second corresponding relation according to three layers of precedence information that obtained, determine corresponding VLAN priority.
6, method according to claim 4 is characterized in that, the described different business of setting up comprises with second corresponding relation of different VLAN priority: second corresponding relation of setting up handled different business of port and the highest VLAN priority;
When the port transmission message, further judge whether this message is broadcasting packet, if then continue to carry out the step of determining corresponding VLAN priority, comprise: port is determined the highest VLAN priority of different business correspondence that self handles according to described second corresponding relation;
The described step that determined VLAN priority is added in this message comprises: port duplicates described message, and determined all the highest VLAN priority are added respectively in each message that duplicates.
7, method according to claim 1 is characterized in that, described method further comprises: the 3rd corresponding relation of setting up a plurality of VLAN signs and an outer VLAN identification;
After determining the VLAN sign of message correspondence, further comprise: according to determined VLAN sign and the 3rd corresponding relation of being set up, determine corresponding outer layer VLAN sign, during determined outer VLAN identification is joined message.
8, according to any described method in the claim 1 to 7, it is characterized in that described method further comprises: receiving terminal identifies according to VLAN, professional under the identification message.
9, method according to claim 8 is characterized in that, described receiving terminal further comprised before professional under the VLAN sign identification message:
Judge whether message has outer VLAN identification, if, then peel off the outer VLAN identification of this message, continue according to professional under the VLAN sign identification message.
10, method according to claim 1, it is characterized in that, the described different business of setting up comprises with first corresponding relation of different VLAN signs: at each port, set up first corresponding relation of handled different business of this port and different virtual LAN VLAN sign, wherein, the VLAN of different port sign value is identical or different.
11, a kind of radio transmission apparatus of distinguishing wireless traffic is characterized in that, this equipment comprises: memory module and port Executive Module, wherein,
Described memory module is used to preserve first corresponding relation of different business and different VLAN signs;
The port Executive Module when the port transmission message, obtains first correspondence relationship information from memory module, determine corresponding VLAN sign according to professional under this message and first corresponding relation, and determined VLAN sign is added in this message.
12, equipment according to claim 11 is characterized in that, described memory module is further used for preserving second corresponding relation of different business and different VLAN priority;
The port Executive Module further when the port transmission message, obtains second correspondence relationship information from memory module, according to professional under this message and second corresponding relation, determine the VLAN priority that it is corresponding, and determined VLAN priority is added in this message.
13, equipment according to claim 11 is characterized in that, described memory module is further used for preserving the 3rd corresponding relation of a plurality of VLAN signs and an outer VLAN identification;
The port Executive Module, further when the port transmission message, from memory module, obtain the 3rd correspondence relationship information, according to determined VLAN sign and the 3rd corresponding relation, determine corresponding outer layer VLAN sign, during determined outer VLAN identification is joined message.
14, according to claim 11,12 or 13 described equipment, it is characterized in that described memory module is further used for preserving the attribute information of port, and the attribute of described port is: only allow the message of band VLAN sign to come in and go out, be designated as the TAG attribute; Or only allow not to be with the message of VLAN sign to come in and go out, be designated as the UNTAG attribute; Or allow the message of any kind of to come in and go out, be designated as the HYBRID attribute;
The port Executive Module further when the port transmission message, obtains the attribute information of port from memory module, according to port attribute, determine that can this port transmit message.
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