CN100589443C - An Ethernet service processing method in Gbit passive optical network - Google Patents
An Ethernet service processing method in Gbit passive optical network Download PDFInfo
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- CN100589443C CN100589443C CN200710075018A CN200710075018A CN100589443C CN 100589443 C CN100589443 C CN 100589443C CN 200710075018 A CN200710075018 A CN 200710075018A CN 200710075018 A CN200710075018 A CN 200710075018A CN 100589443 C CN100589443 C CN 100589443C
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Abstract
The invention discloses a processing method of Ethernet business in the Jupiter passive optical network, which comprises the following steps: D1. setting the mapping relationship of bridge port and physical port of optical network unit; affirming the corresponding relationship of the distributed address of bridge port and Ethernet business pack; allocating bearing channel mark to mark the propertyof distributed Ethernet business pack; establishing the mapping relationship between bridge port and bearing channel mark; D2. obtaining the bridge port through the corresponding relationship of thebridge port and the distributed address of Ethernet business pack; D3. acquiring the bearing channel mark through bridge port according to the mapping relationship of bridge port and bearing channel mark; D4. distributing the Ethernet business pack to the optical network unit according to the bearing channel mark. The invention realizes the fine service for terminal user.
Description
Technical field
The present invention relates to a kind of gigabit passive optical network (Gigabit-capable Passive OpticalNetwork, GPON) the Ethernet service processing method in.
Background technology
GPON is a kind of technology in the optical access network, it is by OLT (Optical Line Terminal, optical line terminal), ODN (optical distribution network, Optical Distribution Network) and ONU (Optical Network Unit, optical network unit) three parts constitute, a kind of network architecture that connects by passive optical distribution network ODN between OLT and ONU.Business packet from OLT to ONU adopts broadcast transmission, and ONU obtains one's own business packet selectively and abandons all the other incoherent packets; ONU gives OLT distributing to burst is uploaded on the time slot of oneself business.Therefore GPON in fact is the network configuration of an one-to-many, and GPON identifies miscellaneous service from different ONU in the OLT side with bearer path sign PortID.
At present among the GPON Ethernet service transmit the most frequently used application model that waits processing be directly carry out according to VLANID (virtual local area network tags) and PortID corresponding one by one, the transmission of realization Ethernet service in GPON.The shortcoming of doing like this is the service that can't become more meticulous to the terminal use, for example the distribution of the determining of the flexible classification of Ethernet service, MAC Address, bandwidth and scheduling etc.
Summary of the invention
In order to solve the problems of the technologies described above, the present invention proposes the Ethernet service processing method in a kind of gigabit passive optical network, the service that becomes more meticulous can be provided for the Ethernet service among the GPON.
To achieve these goals, the present invention has adopted following technical scheme:
Ethernet service processing method in a kind of gigabit passive optical network comprises the downlink processing flow process, and described downlink processing flow process comprises the steps:
D1, be provided with bridge port and with the physical port mapping relations of optical network unit, establish the corresponding relation that issues the address of bridge port and Ethernet service bag; Configuration bearer path sign is to indicate the characteristic of the Ethernet service bag that issues; Set up the mapping relations of bridge port and bearer path sign;
D2, obtain bridge port by the corresponding relation that issues the address of address by described bridge port and Ethernet service bag that issue of Ethernet service bag;
D3, obtain the bearer path sign by bridge port according to the mapping relations of described bridge port and bearer path sign;
D4, the Ethernet service bag is issued to optical network unit according to bearer path sign.
The mapping relations of described bridge port and bearer path sign are set up according to any one characteristic value among 802.1p, TOS, EtherType, IP protocol type and the CVLAN in the Ethernet service bag that issues, and the different bridge port of described arbitrary characteristic value is mapped as different bearer path signs.
Described bridge port is that bridge port is corresponding one by one with the User Network Interface of optical network unit or optical network unit with the physical port mapping relations of optical network unit.
To obtain bridge port be to realize as follows by the address that issues of Ethernet service bag described in the step D2:
A1, the Ethernet service bag that issues be unicast packet or multicast packets in this way, and inquiry clean culture or multicast address issue the bridge port that the address obtains business packet by the corresponding relation of address in the address table and bridge port by the Ethernet service bag, change step D3 over to; As not being that unicast packet or multicast packets or inquiry clean culture or multicast address do not obtain the result and then carry out next step;
A2, inquiry broadcast domain table by the corresponding relation of address in the broadcast domain table and the bridge port bridge port that the address obtains business packet that issues by the Ethernet service bag, change step D3 over to.
Also comprise following steps before the described steps A 1:
Judge whether business packet is the transparent transmission attribute, in this way, then issue the address by the Ethernet service bag and obtain bridge port, change step D3 over to according to the corresponding relation that issues the address of bridge port and Ethernet service bag; Otherwise change steps A 1 over to.
The described address that issues comprises MAC+VLAN, and described unicast address table is preserved the corresponding relation of MAC+VLAN and bridge port; Wherein, MAC is a Media Access Control address, and VLAN is a virtual local area network tags.
Ethernet service processing method in a kind of gigabit passive optical network comprises up handling process, and described up handling process comprises the steps:
U1, be provided with bridge port and with the physical port mapping relations of optical network unit, establish the corresponding relation of the source address of bridge port and Ethernet service bag; Configuration bearer path sign is to indicate the characteristic of the Ethernet service bag of uploading; Set up the mapping relations of bridge port and bearer path sign;
U2, obtain bridge port by the bearer path in the Ethernet service bag of uploading sign according to described mapping relations;
U3, Ethernet service bag upload to optical line terminal by the physical port of the bridge port mapping that step U2 obtains.
Described mapping relations are determined according to following rule: the bearer path sign of each business packet that source address is identical is mapped to the bridge port of this source address correspondence.
When the bridge port attribute is non-TLS port, also comprise the address learning process behind the described step U3:
Optical line terminal is inquired about the clean culture address table according to the source address information in the Ethernet service bag, as does not inquire this address information, the information of the corresponding relation of used bridge port when then adding this address information and uploading in the unicast address table; Otherwise judge that whether to wrap bridge port used when passing identical with Ethernet service with the corresponding bridge port of this address information, as otherwise by the corresponding relation of this address information and bridge port in the actual bridge port renewal unicast address table of uploading, otherwise maintain the original state; Source address information comprises MAC+VLAN, and wherein, MAC is a Media Access Control address, and VLAN is a virtual local area network tags.
Comprise that also the Ethernet service bag to uploading carries out pretreated step before the described step U1.
Compared with prior art, the invention has the beneficial effects as follows: bridge port is set, set up the mapping relations between bridge port and the PortID, because PortID has reflected information such as the type, grade of business packet, thereby make and to transmit business packet according to type of service, the grade of business packet, realized the service of becoming more meticulous the terminal use.
Description of drawings
Fig. 1 is the up process chart of the specific embodiment of the invention;
Fig. 2 is the downlink processing flow chart of the specific embodiment of the invention;
System configuration schematic diagram when Fig. 3 is PortID of bridge port binding of the specific embodiment of the invention;
Fig. 4 is the system authority schematic diagram of a bridge port of the specific embodiment of the invention when binding a plurality of PortID.
Embodiment
The present invention is further detailed explanation below in conjunction with accompanying drawing.
The present invention is by being provided with bridge port BP and setting mapping relations between bridge port BP and the PortID and realize the service of becoming more meticulous to the terminal use.Total handling process is: the mapping relations of upstream data bag by PortID and bridge port BP obtain BP number of packet, carry out the address learning of MAC+VLAN+BP then and business packet is transferred GPON OLT; The address learning list that downlink data packet is searched MAC+VLAN+BP obtains bridge port BP, obtain PortID according to the mapping relations of bridge port BP and PortID then, downstream service flow is divided into the various flows of pointing to PortID, then these Business Streams are carried out shaping, join the team and the processing before issuing such as scheduling, the transmission channel that enters GPONOLT then issues.
At first the processing procedure of up direction is described below.
As Fig. 1, the up direction handling process comprises the steps:
A1, up Ethernet service is carried out the preliminary treatment of packet, comprise correctness inspection to packet etc.
A2, be provided with bridge port and with the physical port mapping relations of optical network unit, establish the corresponding relation of the source address of bridge port and Ethernet service bag; Configuration bearer path sign is to indicate the characteristic of the Ethernet service bag of uploading; Set up the mapping relations of bridge port and bearer path sign; According to the bearer path sign PortID that characterizes this packet, obtain BP number of this packet to the mapping table of bridge port BP thereby search up PortID.
Be provided with bridge port and with the physical port mapping relations of optical network unit: bridge port is a kind of port in logic, therefore it need be mapped to physical port.In the present embodiment, the mapping relations of employing are that bridge port is corresponding one by one with the User Network Interface of optical network unit or optical network unit.Certainly also be not limited to this kind mapping relations, also can the corresponding actual physical port of a plurality of bridge ports.
Establish the corresponding relation of the source address of bridge port and Ethernet service bag: need select the bridge port uploaded when business packet to be uploaded is uploaded.Therefore need to determine the source address of business packet and the corresponding relation of bridge port.The address information of selecting in the present embodiment comprises MAC (Media Access Control, medium access control) address and VLAN (Virtual Local Area Network, VLAN) label.MAC+VLAN and bridge port BP are carried out correspondence, and a MAC+VLAN can only be tied among the BP1, for example establishes " BP1 ", " BP2 " and is bridge port number, and " A ", " B " are MAC Address, and " V1 ", " V2 ", " V3 " are the VLAN label.If then A+V1 has been tied to BP1, can not be tied to BP2 simultaneously again.The corresponding relation of bridge port and MAC+VLAN can be A+V1-＞BP1, A+V2-＞BP1, A+V3-＞BP2, B+V1-＞BP2 or the like.
Configuration bearer path sign is to indicate the characteristic of the Ethernet service bag of uploading: in order to realize the service of becoming more meticulous to the terminal use, requirement is considered information such as the type of service of business packet and the grades of service, dispose the characteristic that bearer path sign PortID indicates business packet thus, the PortID difference of the business packet of not only different MAC+VLAN, even the business packet of homology, be the identical business packet of MAC+VLAN, if its characteristic difference, PortID is also inequality.These characteristics are determined according to any one characteristic value among 802.1p, TOS (Type of Service, COS), EtherType (ethernet type), IP protocol type and the CVLAN (Customer VLAN, inner VLAN) usually.The priority of 802.1P value representation business packet for example, the business packet that the 802.1P value is different generates different PortID, then can determine the characteristics such as type, grade of business packet like this by PortID.
Set up the mapping relations of bridge port and bearer path sign: as mentioned above, the business packet that PortID is different may be from same source, be that its MAC+VLAN is identical, for the business packet that guarantees homology can be uploaded by the BP mouth of binding, PortID need be mapped to BP, up PortID to the mapping relations of bridge port BP referring to table one.It is that the different PortID that MAC+VLAN is identical are mapped to identical bridge port BP, and business packet uploads to OLT by the physical port of the optical network unit of bridge port correspondence.In the following table, PON NO represents the GPON slogan, and the PortID of different GPON slogans may be identical.
Table one: up PortID is to the mapping table of bridge port BP
A3, carry out respective handling according to the attribute of bridge port.
When the bridge port attribute is TLS (Transparent LAN Service, a transparent LAN service) port, because the direct transparent transmission of business packet, so needn't transmit with address learning and handle; When being non-TLS port, then change next step; Business packet also needs to do processing such as VLAN conversion usually when the bridge port, and for example VLAN changes to add when generally being up and sticks outer Vlan label, descendingly then it is removed; Other some processing comprise internal layer COS C_COS are mapped as outer COS S_COS or the like.
A4, carry out address learning
The purpose of address learning is to set up MAC+VLAN and bridge port BP mapping table, make to obtain correct bridge port BP according to this mapping table from the target MAC (Media Access Control) address+Vlan label that issues when descending, further obtain corresponding GPON bearer path sign PortID again to carry out business transmission.According to source MAC+SVLAN (Service VLAN, outside VLAN) searching label unicast address table, if do not inquire, then in the unicast address table, add new clauses and subclauses, in have MAC Address+SVLAN label+BP, the corresponding relation of used bridge port when promptly setting up the address information of MAC Address in the business packet+SVLAN label and this business packet and uploading.If comprising the clauses and subclauses of this address information exists, then in the compare address table corresponding bridge port information with upload used bridge port and whether one show to judge whether upload used bridge port BP changes, if change then upgrade bridge port when changing the bridge port information in the address table into actual uploading; Otherwise maintain the original state.Thereby the information that keeps the corresponding relation of up-to-date bridge port BP and MAC Address+SVLAN label; Behind the address learning, business packet transfers OLT, and up processing procedure finishes.The unicast address table sees Table three.
Table three: address table
As Fig. 2, the step of down direction handling process is as follows:
B1, the downlink Ethernet business is carried out the preliminary treatment of packet, comprise processing correctness inspection, SVLAN and the CVLAN of packet.
B2, be provided with bridge port and with the physical port mapping relations of optical network unit, establish the corresponding relation that issues the address of bridge port and Ethernet service bag; Configuration bearer path sign is to indicate the characteristic of the Ethernet service bag that issues; Set up the mapping relations of bridge port and bearer path sign; It is corresponding that above step is actually with the processing of up process.Therefore when descending, can directly quote up fixed relation, not need to establish again.Concrete processing is as follows:
Search descending VLAN type of service table, whether the judgment data bag is the transparent transmission attribute; If transparent transmission service then directly obtains bridge port BP according to the corresponding relation that issues address and bridge port, change step b6 over to; Otherwise, change step b3 over to.Descending VLAN type of service table sees Table four.Transparent transmission identification item in the table has been indicated the transparent transmission attribute of packet.
Table four: descending VLAN type of service table
| SVLAN | CVLAN | The transparent transmission sign | PON NO | Bridge port BP |
| 10 | 0 | Non-transparent transmission | 0 | 1 |
B3, owing to set up the address table of the address information corresponding relation of bridge port and Ethernet service bag when up by address learning.Establish when therefore descending bridge port and Ethernet service bag issue the corresponding relation of address the time be to obtain by tabling look-up.Downlink business is if unicast packet is inquired about the clean culture address table: obtain bridge port BP according to clean culture target MAC (Media Access Control) address+SVLAN label, change step b6 then over to; If search less than, then handle according to inundation bag (search address table during forwarding and do not obtain packet with purpose MAC corresponding address clauses and subclauses), change step b5 over to.Downlink business changes step b4 over to if not unicast packet.
B4, downlink business be if multicast packets, the inquiry multicast address, the clauses and subclauses configuration of multicast address by user's manual configuration or according to multicast protocol information extraction from protocol package dispose.Obtain bridge port BP (may be one group of bridge port BPs) according to the target MAC (Media Access Control) address in the multicast table+SVLAN label, change step b6 then over to; If search less than, then handle and change step b5 over to according to the inundation bag.Downlink business changes step 5 over to if not multicast packets.
B5, downlink broadcast bag or inundation bag are searched the broadcast domain table based on the SVLAN label, in fact the broadcast domain table is exactly the membership table of two layers of Vlan, by user's manual configuration, represent that in this Vlan territory which port being arranged is its member, obtain the bridge port BP (may be one group of bridge port BPs) that needs broadcasting or inundation.
B6, obtain bearer path sign PortID among the corresponding GPON, determine the bearer path of downlink business according to bridge port BP and the mapping relations of PortID.Mapping relations are according to the 802.1P in the business packet, TOS, and EtherType, IP protocol type, any one characteristic value such as CVLAN determines, promptly the PortID when up and the mapping of bridge port are consistent, can guarantee the consistency of up-downgoing business like this.Mapping relations are referring to table five.
Table five: the table of classification rules of bridge port BP
Can be according to 1,802.1P; 2, TOS; 3, EtherType; 4, IP protocol type; 5, this five types feature of CVLAN and BP port numbers obtain PortID.
1、802.1P
2、TOS
3、EtherType
It is 0-7 that system is provided with 8 EtherType register number, and the value of EtherType register can dispose 0x0800, and totally 8 of 0x8864 etc. adopt the mapping mode identical with 802.1P to obtain different PortID according to the numbering of EtherType register.
4, IP protocol type
The same EtherType of implementation.
5、CVLAN
The same EtherType of implementation.CVLAN wherein is based on the CVLAN after the BP port carries out the VLAN conversion.
After having determined the bearer path sign, the Ethernet service bag is issued to optical network unit according to the bearer path sign.
When the ONU side is distinguished different user by different uni interfaces, i.e. corresponding uni interface of user, a but indoor business of usefulness is not done differentiation, the scene when promptly only binding a clean culture PortID on uni interface.Referring to Fig. 3, this moment is as follows corresponding to the crucial list item of aforementioned each table:
Table one
| PON NO | PortID | Bridge port BP |
| 0 | PortID1 | BP1 |
| 0 | PortID2 | BP2 |
Table three
| MAC Address | SVLAN | PON NO | Bridge port BP | Static identity | 。。。。。 |
| A | V1 | 0 | BP1 | Dynamically | 。。。。。 |
| A | V2 | 0 | BP1 | Dynamically | 。。。。。 |
| A | V3 | 0 | BP1 | Dynamically | 。。。。。 |
| B | V1 | 0 | BP2 | Dynamically | 。。。。。 |
| B | V2 | 0 | BP2 | Dynamically | 。。。。。 |
| B | V3 | 0 | BP2 | Dynamically | 。。。。。 |
Table five
As above show, because this moment, business was not done differentiation, the corresponding PortID of BP.Therefore we can use any form and realize the mapping of descending BP to PortID.
When the corresponding uni interface of user of ONU side, and different service types is distinguished by 802.1p priority and is generated different bearer path sign PortID, embodiment guarantees the scheduling of different business and QOS, i.e. scene during a plurality of clean culture PortID of binding on uni interface.Referring to Fig. 4, this moment is as follows corresponding to the crucial list item of aforementioned each table:
Table one
| PON NO | PortID | Bridge port BP |
| 0 | PortID1 | BP1 |
| 0 | PortID2 | BP1 |
| 0 | PortID3 | BP1 |
Table three
| MAC Address | SVLAN | PON NO | Bridge port BP | Static identity | 。。。。。 |
| A | V1 | 0 | BP1 | Dynamically | 。。。。。 |
Table five
Can be mapped to a plurality of PortID with a BP because business is distinguished according to the value of 802.1P when descending this moment, to realize the differentiation to type of service, grade etc.
Adopt the method for the invention, not only bind the feasible address of determining the user more accurately mutually with bridge port by MAC+VLAN, utilize bearer path sign to show the characteristics such as type, grade of business packet simultaneously, make and to serve the user more subtly when transmitting business, application scenarios is more extensive, the consistency of up-downgoing business guarantees better to have realized the fine-grained management to Ethernet service easily.
Claims (6)
1, the Ethernet service processing method in a kind of gigabit passive optical network comprises the downlink processing flow process, it is characterized in that, described downlink processing flow process comprises the steps:
D1, be provided with bridge port and with the physical port mapping relations of optical network unit, establish the corresponding relation that issues the address of bridge port and Ethernet service bag; Configuration bearer path sign is to indicate the characteristic of the Ethernet service bag that issues; Set up the mapping relations of bridge port and bearer path sign;
D2, obtain bridge port by the corresponding relation that issues the address of address by described bridge port and Ethernet service bag that issue of Ethernet service bag;
D3, obtain the bearer path sign by bridge port according to the mapping relations of described bridge port and bearer path sign;
D4, the Ethernet service bag is issued to optical network unit according to bearer path sign.
2, the Ethernet service processing method in the gigabit passive optical network as claimed in claim 1, it is characterized in that, the mapping relations of described bridge port and bearer path sign are set up according to any one characteristic value among 802.1p, TOS, EtherType, IP protocol type and the internal layer VLAN CVLAN in the Ethernet service bag that issues, and the different bridge port of described arbitrary characteristic value is mapped as different bearer path signs.
3, the Ethernet service processing method in the gigabit passive optical network as claimed in claim 1, it is characterized in that described bridge port is that bridge port is corresponding one by one with the User Network Interface of optical network unit or optical network unit with the physical port mapping relations of optical network unit.
As the Ethernet service processing method in the arbitrary described gigabit passive optical network of claim 1 to 3, it is characterized in that 4, to obtain bridge port be to realize as follows by the address that issues of Ethernet service bag described in the step D2:
A1, the Ethernet service bag that issues be unicast packet or multicast packets in this way, and inquiry clean culture or multicast address issue the bridge port that the address obtains business packet by the corresponding relation of address in the address table and bridge port by the Ethernet service bag, change step D3 over to; As not being that unicast packet or multicast packets or inquiry clean culture or multicast address do not obtain the result and then carry out next step;
A2, inquiry broadcast domain table by the corresponding relation of address in the broadcast domain table and the bridge port bridge port that the address obtains business packet that issues by the Ethernet service bag, change step D3 over to.
5, the Ethernet service processing method in the gigabit passive optical network as claimed in claim 4 is characterized in that, also comprises following steps before the described steps A 1:
Judge whether business packet is the transparent transmission attribute, in this way, then issue the address by the Ethernet service bag and obtain bridge port, change step D3 over to according to the corresponding relation that issues the address of bridge port and Ethernet service bag; Otherwise change steps A 1 over to.
6, the Ethernet service processing method in the EPON as claimed in claim 4 is characterized in that, the described address that issues comprises MAC+VLAN, and described unicast address table is preserved the corresponding relation of MAC+VLAN and bridge port; Wherein, MAC is a Media Access Control address, and VLAN is a virtual local area network tags.
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| CN101729283B (en) * | 2008-10-29 | 2012-05-23 | 中兴通讯股份有限公司 | Object management system for virtual local area network and method thereof |
| CN102487325B (en) * | 2010-12-02 | 2015-06-03 | 中兴通讯股份有限公司 | Multicast service realizing method and device |
| CN102447568B (en) * | 2011-11-18 | 2014-12-24 | 烽火通信科技股份有限公司 | Method for treating downlinking broadcast, flooding business and multicasting business in gigabit passive optical network (GPON) system |
| CN103023769B (en) * | 2013-01-22 | 2016-05-04 | 烽火通信科技股份有限公司 | ONU realizes the method for L 2 broadcast bag and unknown bag forwarding |
| CN104243257A (en) * | 2013-06-06 | 2014-12-24 | 太仓市同维电子有限公司 | Method for realizing dynamic shunting by using virtual port in optical network unit |
| CN104133919A (en) * | 2014-08-22 | 2014-11-05 | 上海斐讯数据通信技术有限公司 | Management information base index value and device index value converting method and converting system |
| CN110391921B (en) * | 2018-04-17 | 2022-08-02 | 中兴通讯股份有限公司 | Method and device for processing configuration information of OLT (optical line terminal) port and storage medium |
| CN108882063B (en) * | 2018-05-30 | 2021-01-15 | 烽火通信科技股份有限公司 | Service mapping method for asymmetric system of passive optical network |
| CN113794657B (en) * | 2021-09-14 | 2023-10-31 | 迈普通信技术股份有限公司 | MAC address migration processing method and device and switching equipment |
| CN117201434B (en) * | 2023-11-07 | 2024-08-09 | 杭州初灵信息技术股份有限公司 | Ethernet data interaction method and system |
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