CN101931835A - Method and device for realizing VLAN (Virtual Local Area Network) convergence and conversion in EPON (Ethernet Passive Optical Network) - Google Patents
Method and device for realizing VLAN (Virtual Local Area Network) convergence and conversion in EPON (Ethernet Passive Optical Network) Download PDFInfo
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Abstract
The invention discloses a method and a device for realizing VLAN (Virtual Local Area Network) convergence and conversion in an EPON (Ethernet Passive Optical Network). The method comprises the steps of: adding each user port and upper interface in a VLAN service for VLAN uplink N:1 converging simultaneously; establishing an entry VLAN mapping relation table and an exit VLAN mapping relation table, related to each user port, and an upper interface mapping relation table related to the upper interface; and carrying out uplink N:1 convergence processing and downlink 1:N conversion processing according to the mapping relation tables. The invention realizes the support for VLAN uplink N:1 convergence and downlink 1:N conversion function for an ONU (Optical Network Unit), and the VLAN conversion among different user ports are mutually independent and free from interference; the user VLAN of different user ports can be converted into the same VLAN service; and one user port can have multiple groups of VLAN conversion. The invention supports 1:1 VLAN conversion and N:1 VLAN conversion simultaneously, reduces cost of development, and increases performance price ratio.
Description
[technical field]
The present invention relates to EPON (Ethernet Passive Optical Network, Ethernet passive optical network) field, relate in particular to VLAN (Virtual Local Area Network, VLAN) the conversion process technical field among the gigabit EPON.
[background technology]
In early days in the Access Network of setting up based on the EPON technology, business need is simple, need be at ONU (Optical Network Unit, optical network unit) goes up the up N:1 of realization VLAN and converge descending 1:N translation function with VLAN, but along with constantly development and the extensive use of EPON technology, require the complicated intellectuality of ONU function, the ONU of new research and development just need converge the support of changing with the descending 1:N of VLAN to the up N:1 of VLAN, wherein N can be called user vlan, and 1 can be called service VLAN.
Converge for the up N:1 of VLAN, be meant after the different user VLAN that single or multiple user ports are received converts an identical service VLAN to forward from the upper united mouth; For the descending 1:N conversion of VLAN, in fact be exactly the reverse transformation that up N:1 converges.Because the N during the up N:1 of VLAN converges may be greater than 1, when carrying out to exist multiple conversion to select when the descending 1:N of VLAN changes, so the VLAN after need determining to change according to purpose MAC (being the source MAC that the up N:1 of VLAN converges) promptly converts the user vlan of this MAC when the up N:1 of VLAN converges to.
In order to realize that ONU supports above-mentioned functions, can adopt usually supporting the high-end exchange chip of ingress VLAN mapping (abbreviating IVM as), outlet VLAN mapping (abbreviating EVM as), stream (FLOW) classification and virtual port (VPORT) function.Wherein, ingress VLAN mapping is meant＜INPORT (inbound port) VLAN (user vlan)〉to＜VLAN (service VLAN), FLOW (stream), VPORT (virtual port) mapping, this mapping was finished before mac learning; Outlet VLAN mapping is meant＜INPORT (inbound port) OUTPORT (outbound port), FLOW (stream), VPORT (virtual port)〉to＜VLAN (user vlan) mapping, this mapping is finished after the message forwarding; Virtual port is meant and can fictionalizes a plurality of logic ports on physical port, and mac learning and message transmit and all be based on virtual port, that is to say that the MAC Address list item comprises these elements:＜MAC, VLAN, PORT, VPORT at least 〉.
Adopt the scheme of high-end exchange chip to have following defective: software development that needs are huge and hardware development job costs and research and development risk; Reduced the cost performance of ONU; And be unfavorable for the upgrading of the equipment disposed in the existing network.Thereby be necessary to propose a kind of new solution.
[summary of the invention]
The technical problem that the present invention will solve provides and realizes the method that VLAN converges and changes among a kind of EPON, and corresponding realization device, be applied to existing ONU, realize that ONU converges support with the descending 1:N translation function of VLAN to the up N:1 of VLAN, reduce development cost, improve the cost performance of ONU.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is,
Realize among a kind of EPON that the up N:1 of VLAN converges the method for changing with descending 1:N, may further comprise the steps:
(1) each user port and upper united mouth are added to simultaneously in the service VLAN that the up N:1 of VLAN converges;
(2) set up ingress VLAN mapping relations table relevant and outlet VLAN mapping relations table with described each user port, and the upper united mouth mapping relations table relevant with the upper united mouth;
(3) carry out up N:1 convergence processing and descending 1:N conversion process according to described ingress VLAN mapping relations table, upper united mouth mapping relations table and outlet VLAN mapping relations table.
In the said method, the list item of described ingress VLAN mapping relations table is:＜INPORT=user port, VLAN=user vlan〉→＜the VLAN=service VLAN, VPORT 〉, wherein, VPORT and user vlan are corresponding one by one in each user port scope;
The list item of described upper united mouth mapping relations table is:＜INPORT=upper united mouth, VLAN=service VLAN〉→＜FLOW 〉;
The list item of described outlet VLAN mapping relations table is:＜INPORT=upper united mouth, OUTPORT=user port, FLOW, VPORT〉→＜the VLAN=user vlan 〉; Wherein, FLOW and service VLAN are corresponding one by one in global scope.
In the said method, described up N:1 convergence processing step comprises:
For the upstream data that sends on the different user ports, after in described ingress VLAN mapping relations table, searching the list item that matches the user vlan in this upstream data is replaced with corresponding business VLAN, and amended upstream data is forwarded from the upper united mouth;
Carry out MAC address learning according to described upstream data, and in mac address table, add list item, with the corresponding relation of reflection upstream data source MAC, service VLAN, user port, virtual port.
In the said method, described descending 1:N conversion process step comprises:
For the received downlink data in upper united mouth, in described mac address table, search the list item of coupling according to wherein target MAC (Media Access Control) address and service VLAN, determine corresponding user port and virtual port;
In described outlet VLAN mapping relations table, search the list item of coupling according to the user port and the virtual port of determined correspondence again, according to this list item the service VLAN in the downlink data is replaced with the pairing user vlan of corresponding user port, and this downlink data is forwarded from this user port.
The up N:1 of a kind of VLAN of realization converges the device with descending 1:N conversion, is applied to optical network unit, comprising: dispensing unit, up N:1 convergence processing module and descending 1:N conversion process module; Wherein,
Described dispensing unit is used for adding each user port and upper united mouth to service VLAN that the up N:1 of VLAN converges simultaneously; Set up ingress VLAN mapping relations table relevant and outlet VLAN mapping relations table with each user port, and the upper united mouth mapping relations table relevant with the upper united mouth;
Described up N:1 convergence processing module is used for carrying out up N:1 convergence processing operation according to described ingress VLAN mapping relations table;
Described descending 1:N conversion process module is used for carrying out descending 1:N conversion process operation according to described upper united mouth mapping relations table and outlet VLAN mapping relations table.
In the said apparatus, described up N:1 convergence processing module comprises:
Upstream data VLAN replaces module, be used for the different user VLAN of the upstream data that sends on the different user ports being replaced with corresponding business VLAN, and amended upstream data is forwarded from the upper united mouth according to described ingress VLAN mapping relations table;
The upstream data analysis and processing module is used for carrying out MAC address learning according to described upstream data, and adds list item in mac address table, with the corresponding relation of reflection upstream data source MAC, service VLAN, user port, virtual port.
In the said apparatus, described descending 1:N conversion process module comprises:
The downlink data analysis and processing module is used for target MAC (Media Access Control) address and service VLAN according to the received downlink data in upper united mouth, searches the list item of coupling in described mac address table, determines corresponding user port and virtual port;
Downlink data VLAN modular converter, be used for searching the list item of coupling at described outlet VLAN mapping relations table according to determined user port and virtual port, according to this list item the service VLAN in the downlink data is replaced with the pairing user vlan of corresponding user port, and this downlink data is forwarded from this user port.
The present invention has realized that ONU converges support with descending 1:N translation function to VLAN up N:1, and makes that the VLAN conversion between the different user port is separate, does not disturb mutually; The user vlan of different user port can be converted to identical service VLAN; Can there be many group VLAN conversion on the user port; Support the VLAN conversion of 1:1 and N:1 simultaneously; Reduce development cost, improved cost performance.
[description of drawings]
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Fig. 1 is that the present invention realizes the structure drawing of device that VLAN converges and changes.
Fig. 2 is that the present invention realizes the method flow diagram that VLAN converges and changes.
[embodiment]
Core concept of the present invention is: at first user port and upper united mouth are added to simultaneously in the service VLAN that the up N:1 of VLAN converges, and set up ingress VLAN mapping relations table, upper united mouth mapping relations table and outlet VLAN mapping relations table in advance; Carry out up N:1 convergence processing and descending 1:N conversion process according to ingress VLAN mapping relations table, upper united mouth mapping relations table and outlet VLAN mapping relations table then.
As shown in Figure 1, the present invention realizes that the up N:1 of VLAN converges the device of changing with descending 1:N, comprising:
(1) dispensing unit is used for adding user port and upper united mouth to service VLAN that the up N:1 of VLAN converges simultaneously; Set up ingress VLAN mapping relations table, upper united mouth mapping relations table and outlet VLAN mapping relations table;
(2) up N:1 convergence processing module is used for carrying out up N:1 convergence processing operation according to ingress VLAN mapping relations table and upper united mouth mapping relations table; This module comprises again:
Upstream data VLAN replaces module, be used for the different user VLAN of the upstream data that sends on the different user ports being replaced with corresponding business VLAN, and amended upstream data is forwarded from the upper united mouth according to upper united mouth mapping relations table according to described ingress VLAN mapping relations table;
The upstream data analysis and processing module is used for carrying out MAC address learning according to upstream data, and adds list item in mac address table, with the corresponding relation of reflection upstream data source MAC, service VLAN, user port, virtual port;
(3) descending 1:N conversion process module is used for carrying out descending 1:N conversion process operation according to described outlet VLAN mapping relations table; This module comprises again:
The downlink data analysis and processing module is used for the target MAC (Media Access Control) address and the service VLAN of the downlink data that receives according to the upper united mouth, searches the list item of coupling in described mac address table, determines corresponding user port and virtual port;
Downlink data VLAN modular converter, be used for searching the list item of coupling at described outlet VLAN mapping relations table according to determined user port and virtual port, according to this list item the service VLAN in the downlink data is replaced with the pairing user vlan of corresponding user port, and this downlink data is forwarded from this user port.
See also Fig. 2, said apparatus realizes that the up N:1 of VLAN converges the method for changing with descending 1:N and may further comprise the steps:
201, each user port and upper united mouth are added to simultaneously in the service VLAN that the up N:1 of VLAN converges.
202, set up ingress VLAN mapping relations table, upper united mouth mapping relations table and outlet VLAN mapping relations table; Wherein,
The list item of ingress VLAN mapping relations table is:＜INPORT=user port, VLAN=user vlan〉→＜the VLAN=service VLAN, VPORT 〉; Wherein VPORT and user vlan are corresponding one by one in each user port scope, and this table is used for realizing that the up N:1 of VLAN converges;
The list item of upper united mouth mapping relations table is:＜INPORT=upper united mouth, VLAN=service VLAN〉→＜FLOW 〉;
The list item of outlet VLAN mapping relations table is:＜INPORT=upper united mouth, OUTPORT=user port, FLOW, VPORT〉→＜the VLAN=user vlan 〉; Wherein FLOW and service VLAN are corresponding one by one in the ONU global scope, and this table is used for realizing the descending 1:N conversion of VLAN.
203, carry out up N:1 convergence processing and descending 1:N conversion process according to described ingress VLAN mapping relations table, upper united mouth mapping relations table and outlet VLAN mapping relations table.Wherein,
The up N:1 convergence processing of VLAN step comprises: 1. according to described upper united mouth mapping relations table the different user VLAN in the upstream data that sends on the different user ports is replaced with corresponding business VLAN, and amended upstream data is forwarded from the upper united mouth; 2. carry out MAC address learning according to described upstream data, and in mac address table, add list item, with the corresponding relation of reflection upstream data source MAC, service VLAN, user port, virtual port.
The descending 1:N conversion process of VLAN step comprises: 1. target MAC (Media Access Control) address and the service VLAN in the downlink data that receives according to the upper united mouth, in described mac address table, search the list item of coupling, and determine corresponding user port and virtual port; 2. in described outlet VLAN mapping relations table, search the list item of coupling according to determined user port and virtual port, according to this list item the service VLAN in the downlink data is replaced with the pairing user vlan of corresponding user port, and this downlink data is forwarded from this user port.
In the present embodiment, suppose all to dispose the up 2:1 of VLAN and converge on user port 1, the VLAN with 100 and 200 is converted to 300.In order to realize this conversion, need carry out following operation earlier:
1) user port 1 and upper united mouth are added among the VLAN300;
2) search whether there be the upper united mouth mapping relations table list item relevant with the upper united mouth:
A:＜INPORT=upper united mouth, VLAN=300〉→＜FLOW=1 〉
If no, then create this list item;
3) create two ingress VLAN mapping relations table list items relevant with user port 1:
B：<INPORT＝1，VLAN＝100>→<VLAN＝300，VPORT＝0>
C：<INPORT＝1，VLAN＝200>→<VLAN＝300，VPORT＝1>；
4) create two outlet VLAN mapping relations table list items relevant with user port 1:
D:＜INPORT=upper united mouth, OUTPORT=1, FLOW=1, VPORT=0〉→＜VLAN=100 〉
E:＜INPORT=upper united mouth, OUTPORT=1, FLOW=1, VPORT=1〉→＜VLAN=200 〉.
Afterwards, when sending VLAN to user port 1 is 100, when source MAC is the message of 00:00:00:00:01:00, in ingress VLAN mapping relations table, find the list item B of this message coupling, forward after then the user vlan in this message being revised as service VLAN 300; Simultaneously carry out MAC address learning according to this message, in mac address table, add list item＜MAC=00:00:00:00:01:00, VLAN=300, PORT=1, VPORT=0 〉, with the corresponding relation of reflection upstream data source MAC, service VLAN, user port, virtual port.In like manner, be 200 when sending user vlan to user port 1, when source MAC is the message of 00:00:00:00:02:00, in ingress VLAN mapping relations table, find the list item C of this message coupling, forward after then the user vlan in this message being revised as service VLAN 300; Simultaneously carry out MAC address learning, in mac address table, add list item＜MAC=00:00:00:00:02:00, VLAN=300, PORT=1, VPORT=1〉according to this message.
Be 300 when sending VLAN to the upper united mouth, when purpose MAC is the message of 00:00:00:00:01:00, find the list item A of coupling earlier, in mac address table, find the MAC address entries＜MAC=00:00:00:00:01:00 of coupling then, VLAN=300, PORT=1, VPORT=0〉after this message is forwarded to the VPORT 0 of user port 1, in outlet VLAN mapping relations table, find the list item D of coupling at last, so the service VLAN in this message 300 is revised as user vlan 100.In like manner, be 300 when sending VLAN to the upper united mouth, when purpose MAC is the message of 00:00:00:00:02:00, find the list item A of coupling earlier, carry out MAC then and search, match＜MAC=00:00:00:00:02:00, VLAN=300, PORT=1, VPORT=1〉list item, so message is forwarded to the VPORT 1 of user port 1, in outlet VLAN mapping relations table, find the list item E of coupling at last, so the service VLAN in this message 300 is revised as user vlan 200.
In above-mentioned implementation method, FLOW is a global assignment, and corresponding one by one with service VLAN.That is to say, user vlan is converted to 300, should use the FLOW identical so with user port 1 if user port 2 has also disposed.Because the message that receive the upper united mouth can only match a list item.
VPORT in one group of N:1 conversion, distribute and user vlan corresponding one by one.That is to say that if the VLAN that user port 1 has also disposed 400 and 500 is converted to 800, this group N:1 conversion can be used 0 and 1 these two VPORT equally so.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is had been described in detail.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (7)
1. realize that the up N:1 of VLAN converges the method for changing with descending 1:N among an EPON, it is characterized in that, may further comprise the steps:
(1) each user port and upper united mouth are added to simultaneously in the service VLAN that the up N:1 of VLAN converges;
(2) set up ingress VLAN mapping relations table relevant and outlet VLAN mapping relations table with described each user port, and the upper united mouth mapping relations table relevant with the upper united mouth;
(3) carry out up N:1 convergence processing and descending 1:N conversion process according to described ingress VLAN mapping relations table, upper united mouth mapping relations table and outlet VLAN mapping relations table.
2. the up N:1 of realization VLAN according to claim 1 converges the method with descending 1:N conversion, it is characterized in that,
The list item of described ingress VLAN mapping relations table is:＜INPORT=user port, VLAN=user vlan〉→＜the VLAN=service VLAN, VPORT 〉, wherein, VPORT and user vlan are corresponding one by one in each user port scope;
The list item of described upper united mouth mapping relations table is:＜INPORT=upper united mouth, VLAN=service VLAN〉→＜FLOW 〉;
The list item of described outlet VLAN mapping relations table is:＜INPORT=upper united mouth, OUTPORT=user port, FLOW, VPORT〉→＜the VLAN=user vlan 〉; Wherein, FLOW and service VLAN are corresponding one by one in global scope.
3. the up N:1 of realization VLAN according to claim 2 converges the method with descending 1:N conversion, it is characterized in that described up N:1 convergence processing step comprises:
For the upstream data that sends on the different user ports, after in described ingress VLAN mapping relations table, searching the list item that matches the user vlan in this upstream data is replaced with corresponding business VLAN, and amended upstream data is forwarded from the upper united mouth;
Carry out MAC address learning according to described upstream data, and in mac address table, add list item, with the corresponding relation of reflection upstream data source MAC, service VLAN, user port, virtual port.
4. the up N:1 of realization VLAN according to claim 3 converges the method with descending 1:N conversion, it is characterized in that described descending 1:N conversion process step comprises:
For the received downlink data in upper united mouth, in described mac address table, search the list item of coupling according to wherein target MAC (Media Access Control) address and service VLAN, determine corresponding user port and virtual port;
In described outlet VLAN mapping relations table, search the list item of coupling according to the user port and the virtual port of determined correspondence again, according to this list item the service VLAN in the downlink data is replaced with the pairing user vlan of corresponding user port, and this downlink data is forwarded from this user port.
5. realize that the up N:1 of VLAN converges the device of changing with descending 1:N for one kind, be applied to optical network unit, it is characterized in that this device comprises: dispensing unit, up N:1 convergence processing module and descending 1:N conversion process module; Wherein,
Described dispensing unit is used for adding each user port and upper united mouth to service VLAN that the up N:1 of VLAN converges simultaneously; Set up ingress VLAN mapping relations table relevant and outlet VLAN mapping relations table with each user port, and the upper united mouth mapping relations table relevant with the upper united mouth;
Described up N:1 convergence processing module is used for carrying out up N:1 convergence processing operation according to described ingress VLAN mapping relations table;
Described descending 1:N conversion process module is used for carrying out descending 1:N conversion process operation according to described upper united mouth mapping relations table and outlet VLAN mapping relations table.
6. the up N:1 of realization VLAN according to claim 5 converges the device with descending 1:N conversion, it is characterized in that described up N:1 convergence processing module comprises:
Upstream data VLAN replaces module, be used for the different user VLAN of the upstream data that sends on the different user ports being replaced with corresponding business VLAN, and amended upstream data is forwarded from the upper united mouth according to described ingress VLAN mapping relations table;
The upstream data analysis and processing module is used for carrying out MAC address learning according to described upstream data, and adds list item in mac address table, with the corresponding relation of reflection upstream data source MAC, service VLAN, user port, virtual port.
7. the up N:1 of realization VLAN according to claim 6 converges the device with descending 1:N conversion, it is characterized in that described descending 1:N conversion process module comprises:
The downlink data analysis and processing module is used for target MAC (Media Access Control) address and service VLAN according to the received downlink data in upper united mouth, searches the list item of coupling in described mac address table, determines corresponding user port and virtual port;
Downlink data VLAN modular converter, be used for searching the list item of coupling at described outlet VLAN mapping relations table according to determined user port and virtual port, according to this list item the service VLAN in the downlink data is replaced with the pairing user vlan of corresponding user port, and this downlink data is forwarded from this user port.
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| CN107018081A (en) * | 2017-03-15 | 2017-08-04 | 烽火通信科技股份有限公司 | A kind of method for being used to realize the 1+1 protection of point-to-multipoint |
| CN107018081B (en) * | 2017-03-15 | 2020-05-05 | 烽火通信科技股份有限公司 | Method for realizing point-to-multipoint 1+1 protection |
| CN109088820A (en) * | 2018-09-21 | 2018-12-25 | 锐捷网络股份有限公司 | A kind of striding equipment link aggregation method, device, computing device and storage medium |
| CN109088820B (en) * | 2018-09-21 | 2021-05-18 | 锐捷网络股份有限公司 | Cross-device link aggregation method and device, computing device and storage medium |
| CN112019432A (en) * | 2020-07-31 | 2020-12-01 | 深圳市风云实业有限公司 | Uplink input message forwarding system based on multiport binding |
| CN112019432B (en) * | 2020-07-31 | 2022-02-01 | 深圳市风云实业有限公司 | Uplink input message forwarding system based on multiport binding |
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