CN1416248A - Method for realizing switch in with mixed multiple users'types in Ethernet network switch in devices - Google Patents
Method for realizing switch in with mixed multiple users'types in Ethernet network switch in devices Download PDFInfo
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Abstract
The method includes the procedure for building the user information table and the user information index table in the identification phase, the authentication of the up loading message in the normal transaction phase and the procedure of processing the down loading message. The procedure for building the tables is as follows: The user class and the validity are determined. The table is built for the legal use. The user m(.s information is PPPoE class indexed according to the Session ID. The user information in VLAN class is indexed according to the VLAN ID. The same VLAN ID is indexed according to the time sequence. The authentication procedure of the up loading message is based on the user class to clock up the relevant partition of the used class through the list item positioning to authenticate the user.
Description
Technical field
The present invention relates to the broadband access technology field, relating to a kind of or rather is in the Ethernet access device of central processing unit (CPU) at network processing unit, can realize that the polytype user mixes the method for access.
Background technology
It is a kind of widely used broadband access technology that Ethernet inserts.Common user mode access has PPPoE (PPP of PPP over Ethernet Ethernet bearing), VLAN (VLAN), PPPoE+VLAN etc.
Illustrate a kind of networking structure of typical Ethernet access device among Fig. 1.VLAN user shown in the figure comprises by a VLAN ID (VLAN ID) and supports a user's situation and supported a plurality of users' situation by a VLAN ID.We define the user and give out a contract for a project to up to Internet, and the Internet main frame is given out a contract for a project to the user to descending.
As shown in FIG., PPPoE user inserts network interface by up certain that is connected to the Ethernet access device of Hub; By user's Virtual Local Area Network user that a VLAN ID (VLAN ID) is supported, connect another access network interface of access network based on ethernet access device by LAN switch (LAN Switch); A plurality of users of a VLAN ID support are by Hub and this access network interface that also is connected the access network based on ethernet access device by LAN switch (LAN Switch); In addition, VLAN user also can insert (not shown) with PPP over Ethernet by the PPPoE terminal software; PPPoE user and Common VLAN user also can converge once by Hub again, insert same Ethernet and insert the network interface (not shown).
In a word, Internet user's networking demand is actually diversified, and the mixing of Here it is multiple types of users inserts.
The Ethernet access procedure will solve the authentication of user uplink message, the forwarding of downlink message and the problems such as collection of charge information, the agreement that is specifically related to comprises: PPPoE agreement (RFC2516), ppp protocol (REC1661 etc.), Radius agreement (RFC2138, RFC2139), DHCP agreement (RFC2131), ARP agreement (RFC826), vlan link layer protocol (802.1Q), common ethernet link layer protocol (RFC894) etc., because length is limit, no longer set forth these agreements and the concrete last network process of user thereof.
On the other hand, network processing unit (NP), forward efficiency advantages of higher able to programme because of it just is widely used in the data communications equipment.Because broadband access equipment is to the needs of forwarding performance, in the actual use of user networking, the Ethernet access server often need mix access to realize the polytype user with network processing unit (NP) as central processing unit (CPU).There is network processor chip product separately commercial cities, chip factory such as Intel, IBM, Motorola, and have been used in a large scale.
Utilize network processing unit to carry out message and transmit, employing be assembler language, the user's data message is transmitted by assembler language, promptly utilizes assembler language to search and transmits, and carries out the message encapsulation and transmits.Yet the high-level data structure can not be operated in assembler language, when ethernet user's type hybrid inserts, manage all kinds user is unified, find user profile apace with utilization assembler language on network processing unit, finish user's function such as authentication, message forwarding, to realize user's online, its method that finds the user fast, efficiently, easily is the key technical problem that needs solution.
Summary of the invention
The objective of the invention is to design the method that realizes in a kind of Ethernet access device that multiple user type mixing inserts, in with the Ethernet access device of network processes chip as CPU, design the lookup method that a kind of assembler language can be used, realize that the support multiuser types in the Ethernet access mixes access.
The technical scheme that realizes the object of the invention is such: realize the method that multiple user type mixing inserts in a kind of Ethernet access device, it is characterized in that:
Comprise the user message table after the user surfs the Net and the process of setting up of user profile concordance list thereof, the verification process of user uplink message and the processing procedure of downlink message;
The process of setting up of A. described user message table and user profile concordance list thereof further comprises:
A1. judge user type, be divided into PPPoE class user and VLAN user;
A2. PPPoE class user profile correspondence is based upon in PPPoE class user's the subregion of user message table, Session ID index by the user, a VLAN who supports a user's VLAN class user profile correspondence to be based upon user message table a VLAN supports in a user's the subregion, VLAN ID index by the user, a VLAN who is based upon user message table with the VLAN class user profile correspondence of a VLAN being supported a plurality of users supports in a plurality of users' the subregion, with same VLAN ID permutation index in chronological order;
A3. simultaneously in the user profile concordance list, press the number order of IP address, insert the index entry of relative users in user message table, be included in the Session ID in the PPPoE class user partition, or support VLAN ID in the user partition, or support the user's serial number under the same VLAN ID in a plurality of user partitions at a VLAN at VLAN;
The verification process of B. described user uplink message is according to user type, searches the relative users categories subarea of user message table, by the list item location, carries out authentification of user.
The process of setting up of the user message table of described steps A and user profile concordance list thereof is that the authenticating phase after user's online is carried out; The verification process of the user uplink message of described step B and the processing procedure of downlink message were carried out in the regular traffic stage.
C. the processing procedure of described downlink message comprises following treatment step:
C1. according to the purpose user's IP address, directly search the user profile concordance list;
C2. directly search user message table according to the index entry that writes down in the user profile concordance list;
C3. carry out transmitting after the link layer packaging for the validated user that in user message table, finds.
The PPPoE class user partition of described user message table, a VLAN support a user partition and a VLAN to support a plurality of user partitions, have identical recording capacity, respectively the maximum number of user that can insert for Ethernet access device veneer.
In the described steps A 1, PPPoE, PPPoE+VLAN user are classified as PPPoE class user, support a user and a VLAN to support a plurality of users' user to be classified as VLAN class user a VLAN.
In the described steps A 2, the Session ID of index is 1 to n in the PPPoE class user partition, a described VLAN supports that the VLAN ID of index in the user partition is n+1 to 2n, it is 2n+1 to 3n that a described VLAN supports the time sequencing of index in a plurality of user partitions to arrange, support the list item of corresponding VLAN ID correspondence in the user partition that sign is set to a VLAN simultaneously, show that this VLAN ID supports a plurality of users; In the described steps A 3, in the user profile concordance list, the PPPoE class user index of inserting is 1 to n, and a VLAN who inserts supports that a user's index is n+1 to 2n, and a VLAN who inserts supports that a plurality of users' index is 2n+1 to 3n, and n is a positive integer.
Described step B, for the PPPoE type of user, directly the Session ID according to the user authenticates by the location list item in user message table PPPoE class user partition; For the VLAN type of user, support to a VLAN of user message table according to user's VLAN ID to authenticate by the location list item in a user's the subregion; When this user's authentication is by information in a user's of a VLAN support the subregion, then search described user profile concordance list according to user's IP address, support to a VLAN of user message table to search in a plurality of users' the subregion according to index value again, authenticate (in building the table process, this VLAN ID corresponding list item in supporting a user partition has been set up sign, shows that this VLAN ID supports the multi-user).
Described steps A 1 further comprises: first part of message according to the user judged user type; Subsequent packet according to the user is verified the user identity legitimacy; User name, the password PPPoE class user identical with registration who carries in the message is judged to be the identity validated user; The user who registered VLAN ID is judged to be the identity validated user; For the identity legal users, continue execution in step A2, for the illegal user of identity, finish the process that relative users is handled.
Described PPPoE class user is carried out the judgement of user name, password correctness, described whether legal VLAN class user carried out VLAN ID judgement, judge after user type finishes in steps A 1 and carry out.
Described user message table, each list item record user authentication information, link layer information, incoming end slogan and charge information at least.
The inventive method, adopt the zoning design of user profile form, set up the corresponding relation between user profile concordance list and user message table, user's lookup method when user authen method during the design uplink message and design downlink message, because various forms all are to carry out linear orientation according to index, can be as user message table directly according to the index value linear search of writing down in the user profile concordance list, can utilize assembler language to realize easily searching fast, do not need the complex data structures design, give full play to the search efficiency of assembler language, carry out the fast processing of message, can realize that polytype user's mixing inserts simultaneously again flexibly.
Description of drawings
Fig. 1 is typical Ethernet access device networking structure schematic diagram;
Fig. 2 is a user message table structural representation of the present invention;
Fig. 3 is the corresponding relation schematic diagram between user profile concordance list of the present invention and user message table;
Fig. 4 is the process flow block diagram in subscriber authentication stage of the present invention.
Embodiment
The present invention sets the elemental user type, and with PPPoE, VLAN, three kinds of user types of PPPoE+VLAN, merger is two classes: PPPoE and VLAN, is about to PPPoE+VLAN user and also handles as PPPoE user, realizes their authentication and charging etc.VLAN user divides a VLAN ID to support unique user and a VLAN ID to support two kinds of situations of a plurality of users again.And definition; A network interface card just represents that is inserted a user.
The present invention sets access equipment parameter: promptly by the parameter of configuration access device, make that session (Session) scope that inserts PPPoE user is 1～maximum number of user (n); The VLAN ID scope that inserts VLAN user is 1～maximum number of user (n).
Referring to Fig. 2, user profile tableau format of the present invention shown in the figure is made up of a district, two districts, three districts.The record sum of a user profile form is 3 times of the veneer of the Ethernet access device maximum number of user that can insert, a district of preceding 1/3 is used for depositing continuously PPPoE user profile, middle 1/3 two districts are used for depositing the VLAN user profile that a VLAN ID supports single user, and last 1/3 three districts are used for depositing the VLAN user profile that a VLAN ID supports the multi-user.In the table by contents such as the port numbers of each user's of record a authentication, a link layer information, access, charge informations.
Referring to Fig. 3, the corresponding relation between concordance list of user profile shown in the figure and user message table.
When the IP message in user's regular traffic stage passes through the Ethernet access device, need utilize its IP address search user message table, as the foundation of up authentication or descending forwarding.The user profile concordance list of being set up is used to write down the index value of each IP allocation index user message table exactly, can directly use IP address search user profile concordance list.
The Ethernet access device E-Packets to the user, and the purpose IP address of forwarding is from Internet user's IP message.By the mapping table of structural design shown in Figure 3, find the user profile form according to purpose IP address for the Ethernet access device.
The process of setting up of form shown in Figure 3 comprises setting up user message table simultaneously and setting up user profile to be transmitted.
The user message table of setting up is shown in right side among the figure, authenticating phase after the user begins to surf the Net, according to user type, user profile is set up in the legal back of authentication in the respective regions of user profile form: as the PPPoE type of user in a district according to Session ID (session tokens) index, order is 1 user for PPPoESession in the table, PPPoE Session is 2 user ...; A VLAN ID supports a user's user type to carry out index in two districts according to VLAN ID, and order is in the table; VLAN ID is 1 user ...; The user type that VLAN ID supports a plurality of users in three districts with same VLAN ID by sequence arrangement index settling time, VLAN ID as shown in Table is first user of 2, VLAN ID is second user of 2, ..., giving corresponding VLAN ID in two districts simultaneously is that 2 pairing list items are provided with sign, show that this VLAN supports the multi-user, as " VLAN ID is that 2 support multi-users, this list item are invalid " in figure Zhong Er district.
When setting up user message table, create the user profile concordance list, be used for the corresponding relation between recording user IP address and user profile form index.
Among Fig. 3, when maximum access customer number is expressed as n, after polytype several users online, the corresponding relation of user profile concordance list and user message table.Numeral in user profile concordance list bracket is the index value of index user message table.
Purpose IP address is that 1 the index of User IP 1 in user message table is (1), with user message table one district PPPoE Session be that 1 user sets up corresponding relation, purpose IP address is that 2 the index value of User IP 2 in user message table is (n+1), with user message table two district VLAN ID be that 1 user (single user) sets up corresponding relation, purpose IP address is that 3 the index value of User IP 3 in user message table is (2), with user message table one district PPPoE Session be that 2 user sets up corresponding relation, purpose IP address is that 4 the index value of User IP 4 in user message table is (2n+1), with user message table three district VLAN ID be that first user of 2 sets up corresponding relation, purpose IP address is that 5 the index value of User IP 5 in user message table is (2n+2), with user message table three district VLAN ID be that second user of 2 sets up corresponding relation.
Referring to Fig. 4, the process in the stage of subscriber authentication shown in the figure comprises that equipment work flow process and form set up process.
Step 201, network access equipment receives first part of uplink message of user;
Step 202 is judged user type according to the message kind of this first part of uplink message, is VLAN user type or PPPoE user type;
Step 203 is so to the Initial message of PPPoE, be judged to the user of PPPoE type;
Step 204, further the user identity legitimacy is verified according to this user's subsequent packet, the condition of PPPoE type of user identity legitimacy is that the user name, the password that carry in the message conform to registration, the condition of VLAN type of user identity legitimacy is that VLAN ID registers, and has only the identity legal users just can enter following form and sets up process;
Step 206 is correct PPPoE type of user for user name, password etc., for it distributes Session ID and the IP address of PPPoE;
Step 207 is set up user profile concordance list and user message table according to Session ID and the IP address distributed;
Step 208 is so (DHCP: message Dynamic HostConfiguration Protocol) is judged to the user of VLAN type to the DHCP of VLAN frame format;
Step 209 judges further whether the VLAN ID in this user's message is legal;
Step 210 for VLAN ID legal users, further judges that belonging to a VLAN ID supports a user's situation or the situation that VLAN supports a plurality of users;
Step 211 is supported a plurality of users' situation to be user's distributing IP address for a VLAN, VLAN ID is set in user message table two districts supports the multi-user, fills in user profile in user message table three districts, sets up the user profile concordance list simultaneously;
Step 212, the situation for a user of a VLAN support is user's distributing IP address, fills in user profile in user message table two districts, sets up the user profile concordance list simultaneously;
Step 205 for the user who is judged as user name, password bad in step 204, or is judged as the illegal user of user vlan ID in step 209, then finish the processing to this user.
The Ethernet access device comprises the verification process of user's regular traffic stage uplink message: after having judged Internet user's type,, authenticate then directly according to Session ID location list item for PPPoE user; For VLAN user, be that index is searched in two districts of user message table just with VLAN ID, find directly authentication of back; If in two districts, do not find, just look into the user profile concordance list earlier according to user's IP address, in three districts of user message table, search according to this again after finding respective index value.After user's network access authentication passes through, the user data message that device forwards is follow-up.
No matter be which kind of user type, after finding list item, all need to judge according to content whether the user is legal, have only the message of validated user just can transmit to Internet by access server.
The Ethernet access device comprises the processing procedure of user's regular traffic stage downlink message: direct purpose IP address search user profile concordance list according to user's message, search user message table according to the index value that is recorded under the IP address entry, for the validated user that in user message table, finds, carry out transmitting after the link layer packaging.For the user's message that in user message table, does not find, then downlink message is carried out discard processing.
The inventive method, identical for the forwarding processing procedure of user's message under the same network interface of consolidated network access device or heterogeneous networks access device, consolidated network access device or the different network interface.
Method of the present invention can insert with the mixing that can realize the polytype user flexibly by the fast processing user's message through trying out in gateway device, proves to have good practicability and reliability.
Claims (9)
1. realize the method that multiple user type mixing inserts in an Ethernet access device, it is characterized in that:
Comprise the user message table after the user surfs the Net and the process of setting up of user profile concordance list thereof, the verification process of user uplink message and the processing procedure of downlink message;
The process of setting up of A. described user message table and user profile concordance list thereof further comprises:
A1. judge user type, be divided into PPPoE class user and VLAN user;
A2. PPPoE class user profile correspondence is based upon in PPPoE class user's the subregion of user message table, Session ID index by the user, a VLAN who supports a user's VLAN class user profile correspondence to be based upon user message table a VLAN supports in a user's the subregion, VLAN ID index by the user, a VLAN who is based upon user message table with the VLAN class user profile correspondence of a VLAN being supported a plurality of users supports in a plurality of users' the subregion, with same VLAN ID permutation index in chronological order;
A3. simultaneously in the user profile concordance list, press the number order of IP address, insert the index entry of relative users in user message table, be included in the Session ID in the PPPoE class user partition, or support VLAN ID in the user partition, or support the user's serial number under the same VLAN ID in a plurality of user partitions at a VLAN at VLAN;
The verification process of B. described user uplink message is according to user type, searches the relative users categories subarea of user message table, by the list item location, carries out authentification of user.
2. realize the method that multiple user type mixing inserts in a kind of Ethernet access device according to claim 1, it is characterized in that: the process of setting up of the user message table of described steps A and user profile concordance list thereof is that the authenticating phase after user's online is carried out; The verification process of the user uplink message of described step B and the processing procedure of downlink message were carried out in the regular traffic stage.
3. realize the method that multiple user type mixing inserts in a kind of Ethernet access device according to claim 1 and 2, it is characterized in that the processing procedure of described downlink message, comprise following treatment step:
C1. according to the purpose user's IP address, directly search the user profile concordance list;
C2. directly search user message table according to the index entry that writes down in the user profile concordance list;
C3. carry out transmitting after the link layer packaging for the validated user that in user message table, finds.
4. realize the method that multiple user type mixing inserts in a kind of Ethernet access device according to claim 1, it is characterized in that: the PPPoE class user partition of described user message table, a VLAN support a user partition and a VLAN to support a plurality of user partitions, has identical recording capacity, respectively the maximum number of user that can insert for Ethernet access device veneer.
5. realize the method that multiple user type mixing inserts in a kind of Ethernet access device according to claim 1, it is characterized in that: in the described steps A 1, PPPoE, PPPoE+VLAN user are classified as PPPoE class user, support a user and a VLAN to support a plurality of users' user to be classified as VLAN class user a VLAN.
6. realize the method that multiple user type mixing inserts in a kind of Ethernet access device according to claim 1, it is characterized in that: in the described steps A 2, the Session ID of index is 1 to n in the PPPoE class user partition, a described VLAN supports that the VLAN ID of index in the user partition is n+1 to 2n, it is 2n+1 to 3n that a described VLAN supports the time sequencing of index in a plurality of user partitions to arrange, support the list item of corresponding VLAN ID correspondence in the user partition that sign is set to a VLAN simultaneously, show that this VLAN ID supports a plurality of users; In the described steps A 3, in the user profile concordance list, the PPPoE class user index of inserting is 1 to n, and a VLAN who inserts supports that a user's index is n+1 to 2n, and a VLAN who inserts supports that a plurality of users' index is 2n+1 to 3n, and n is a positive integer.
7. realize the method that multiple user type mixing inserts in a kind of Ethernet access device according to claim 1, it is characterized in that: described step B, for the PPPoE type of user, directly the Session ID according to the user authenticates by the location list item in user message table PPPoE class user partition; For the VLAN type of user, support to a VLAN of user message table according to user's VLAN ID to authenticate by the location list item in a user's the subregion; When this user's authentication is by information in a user's of a VLAN support the subregion, then search described user profile concordance list according to user's IP address, support to a VLAN of user message table to search in a plurality of users' the subregion according to index value again, authenticate.
8. realize the method that multiple user type mixing inserts in a kind of Ethernet access device according to claim 1, it is characterized in that described steps A 1, further comprise: first part of message according to the user judged user type; Subsequent packet according to the user is verified the user identity legitimacy; User name, the password PPPoE class user identical with registration who carries in the message is judged to be the identity validated user; The user who registered VLAN ID is judged to be the identity validated user; For the identity legal users, continue execution in step A2, for the illegal user of identity, finish the process that relative users is handled.
9. realize the method that multiple user type mixing inserts in a kind of Ethernet access device according to claim 1, it is characterized in that: described user message table, each list item record user authentication information, link layer information, incoming end slogan and charge information at least.
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| WO2007104264A1 (en) * | 2006-03-16 | 2007-09-20 | Huawei Technologies Co., Ltd. | A session control system, method, and session identifier allocation apparatus thereof in an access network |
| CN101047706B (en) * | 2006-03-27 | 2011-07-06 | 华为技术有限公司 | Session control system and method for access network |
| CN101039315B (en) * | 2006-03-16 | 2012-01-25 | 华为技术有限公司 | System and method for control access network conversation independent of service |
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| CN101064733B (en) * | 2006-04-26 | 2012-05-30 | 上海贝尔阿尔卡特股份有限公司 | Method and apparatus for controlling user equipment access based on data packet package types |
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| CN102404419A (en) * | 2011-11-23 | 2012-04-04 | 华为技术有限公司 | IP (internet protocol) address distribution method and router |
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| WO2015143824A1 (en) * | 2014-03-28 | 2015-10-01 | 中兴通讯股份有限公司 | Method, apparatus and system for processing ipv6 transition technology type |
| CN107547322A (en) * | 2017-06-30 | 2018-01-05 | 新华三技术有限公司 | A kind of message processing method, device and Broadband Remote Access Server BRAS |
| CN107547322B (en) * | 2017-06-30 | 2020-10-27 | 新华三技术有限公司 | Message processing method and device and broadband remote access server BRAS |
| CN109495431A (en) * | 2017-09-13 | 2019-03-19 | 华为技术有限公司 | Connection control method, device and system and interchanger |
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| CN113034342A (en) * | 2021-05-28 | 2021-06-25 | 江西省江咨金发数据科技发展有限公司 | Electronic insurance letter authentication system based on time rotation |
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| Publication number | Publication date |
|---|---|
| CN1176540C (en) | 2004-11-17 |
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