CN1356806A - Data forwarding method for implementing virtual channel transmission in LAN - Google Patents
Data forwarding method for implementing virtual channel transmission in LAN Download PDFInfo
- Publication number
- CN1356806A CN1356806A CN 01130172 CN01130172A CN1356806A CN 1356806 A CN1356806 A CN 1356806A CN 01130172 CN01130172 CN 01130172 CN 01130172 A CN01130172 A CN 01130172A CN 1356806 A CN1356806 A CN 1356806A
- Authority
- CN
- China
- Prior art keywords
- interface
- packet
- lan
- vlan
- forwarding information
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
- Small-Scale Networks (AREA)
Abstract
A data forwarding method for implementing LAN virtual channel transmission includes judging if there is the incoming data packet at device interface, checking the frame check code of data packet, judging the types of data packet and interface are matched, checking the VLAN ID of its output interface and data packet is a "label forward information data table", and performing data packet exchange between any two interfaces and VLAN ID exchange. Its advantages include supporting both centralized broadband LAN access and LAN VPN and PPPOE access.
Description
Technical field
The present invention relates to a kind of data forwarding method of realizing that the local area network (LAN) Virtual Channel transmits.
Background technology
In IEEE 802.1Q standard, there is 12bits to be used to identify virtual LAN VLAN in the Ethernet frame, promptly the scope of VLAN ID VLAN ID is 0～4095.In the middle of the construction of metropolitan area network, a large amount of users inserts INTERNET in the mode that local area network (LAN) LAN inserts, in order to isolate these users, these users must be divided into independently in the virtual LAN VLAN, each VLAN is identified by a VLAN ID, VLAN ID must guarantee uniqueness at LAN the whole network, is the whole network variable, so the resource of VLAN ID can not satisfy the demand of telecom operators certainly.In order to solve the problem that vlan id lacks, present way mainly contains: 1, adopt the LAN end-to-end (transparent) on the MPLS to transmit, make not relate to VLAN ID problem on backbone network; 2, adopt IP mode rather than the networking of LAN mode at backbone network, VLAN in the zonule or LAN are terminated in the exit of the local area network (LAN) that is divided into the zonule to backbone network.
For mode 1, must set up the MPLS net, increased network operator's operation and maintenance cost (, cause network complexity to increase, relate to a large amount of trainings, personnel require problems such as height) on the one hand because be a brand-new network; Need on LAN or vlan data newspaper, increase additional tags on the other hand, reduce the efficiency of transmission and the stability of network of network.
For mode 2, can not finish the centralized broadband LAN that the network operator requires and insert, and provide for local network virtual private network LAN VPN and PPPOE access service the time and cause very large difficulty.
Summary of the invention
The objective of the invention is by breaking through the restriction of the local area network building that IEEE802.1Q defined VLAN ID (VLAN ID) shortage problem brought, under the existing related protocol of local area network (LAN) (need not use new communication protocol), the low-cost end-to-end interconnection (transparent transmission) that realizes extensive VLAN, both can support centralized broadband LAN to insert, can support to provide simultaneously LAN VPN (local network virtual private network) and PPPOE access service again, and the network operator need not to increase the data forwarding method that the realization local area network (LAN) Virtual Channel of more new technology learning cost transmits, and it may further comprise the steps:
1), whether the interface of judgment device have packet to arrive, if not then wait for, if there is packet to arrive, then
2), check the frame check sign indicating number of packet, if the incorrect data bag then abandons this packet, otherwise
3), judge whether type of data packet and the input interface type enter mate, if do not match then abandon this packet, otherwise
4), check " label forwarding information data table " whether with good grounds input interface or the output interface that clearly indicates this packet of input packet or VLAN ID of dateout bag, if " label forwarding information data table " be clearly indication not, then abandon this packet, otherwise
5), equipment is according to the indication of " label forwarding information data table ", exchanges its VLAN ID VLANID according to specifying during packet exchange between any two interfaces of the equipment of finishing.
The operation of exchanging VLAN ID VLAN ID according to the appointment of label information tables of data when wherein, finishing packet exchange between any two interfaces of equipment in the above-mentioned steps 5 may further comprise the steps:
51), the LAN data bag that enters is added the VLAN ID of " label forwarding information data table " indication, recomputate the frame check sign indicating number, from the interface output of " label forwarding information data table " indication;
52), the LAN data bag that enters is exported from the interface of " label forwarding information data table " indication;
53), the original VLAN ID of virtual LAN data bag that enters is replaced to the new VLAN ID of " label forwarding information data table " indication, recomputate the frame check sign indicating number, from the interface dateout bag of " label forwarding information data table " indication;
54), with the original VLAN ID of the virtual LAN data bag that enters according to " label forwarding information data table " indication deletion, recomputate the frame check sign indicating number, from the interface dateout bag of " label forwarding information data table " indication.
When using the present invention to set up the LAN Virtual Channel, need not to set up a brand-new MPLS network, need not increases additional tags on LAN or vlan data newspaper, so can realize the linear speed exchange and the higher data transmitting efficient of data.
Under the existing related protocol of local area network (LAN) (need not use new communication protocol); the low-cost end-to-end interconnection (transparent transmission) that realizes extensive VLAN; promptly can support centralized broadband LAN to insert; can support to provide simultaneously LAN VPN (local area network interconnection's private network) and PPPOE access service again; and the network operator need not to increase more new technology learning cost, the existing investment of the network of protection maximum.
Describe realization of the present invention and the course of work and principle in detail below in conjunction with accompanying drawing:
Description of drawings
Fig. 1 is the logic diagram of Virtual Channel switching equipment of the present invention;
Fig. 2 is a schematic flow sheet of the present invention;
Fig. 3 is the composition frame chart of an Application Example of the present invention;
Embodiment
As shown in Figure 1, Virtual Channel switching equipment of the present invention (LAN virtual connectiondevice, hereinafter to be referred as LVCD) system and device roughly the same with existing LAN switch (LAN SWITCH), its system logic structure comprises four major parts: A, switching bus; B, function element; C, memory device; D, input/output interface.Their functional structure is described respectively below.
A, switching bus
Switching bus provides public data transmission channel for collaborative work between each parts of switch.
B, function element
Function element comprises network layer routing function device, controlled function device and three parts of forwarding capability device.
Wherein network layer routing function device is used for setting up and safeguarding vlan id routing table;
The controlled function device is handled various control informations, and the each several part of switch is controlled;
The forwarding capability device is responsible for the reception and the forwarding of packet.
C, memory device
Memory device comprises the Cache of Flash RAM, NV RAM, RAM, ROM and every interface.
Flash RAM is used to deposit the operating system of switch;
NV RAM deposits configuration file;
ROM deposits basic boot;
RAM deposits Mac (medium access control) address table, PVID (Port VLAN ID, interface VLAN ID) table, TFIB (Tag Forwarding Information Base, label forwarding information data) table and some other information;
The Cache of every interface is used for the packet that receives is cushioned, and also has the priority query of dateout bag to deposit etc.
D, input/output port
The interface of LVCD can supporting rate 10/100/1000Mbps, medium is that cable/optical fiber, agreement are the various interface of LAN/IEEE802.1Q or other type.Comprise user port and control port two classes.
As shown in Figure 2, the data transfer device of Virtual Channel switching equipment of the present invention may further comprise the steps:
1), whether the interface of judgment device have packet to arrive, if not then wait for, if there is packet to arrive, then
2), check the frame check sign indicating number of packet, if the incorrect data bag then abandons this packet, otherwise
3), judge whether the type of data packet and the input interface type that enter mate.Wherein the packet that receives of input interface can be divided into local area network (LAN) (as Ethernet) frame, VLAN (IEEE802.1Q) frame two classes.The interface that transmits the IEEE802.1Q frame is called labelization (Taged) interface, and the interface that transmits local area network (LAN) (as Ethernet) frame is labelization (Untaged) interface not.Whether type of data packet that judgement enters in this step and input interface type mate may further comprise the steps:
31), judge the type of data packet enter, if the LAN data bag then forwards step 33 to, if the virtual LAN data bag, then
32), judge and the type of input interface, then to abandon this packet if input interface is the not label interface that transmits the LAN data bag; If input interface is the interface of label that transmits the virtual LAN data bag, then forward step 4 to;
33), judge and the type of input interface, then to abandon this packet if input interface is the interface of label that transmits the virtual LAN data bag, if input interface is the not label interface that transmits the LAN data bag, then forward above-mentioned steps 4 to, then abandon this packet, otherwise
4), check " label forwarding information data table " whether the VLAN ID VLAN ID of with good grounds input interface or input packet clearly indicate the output interface of this packet or the VLAN ID of dateout bag, if " label forwarding information data table " be clearly indication not, then abandon this packet, otherwise
5), equipment is according to the indication of " label forwarding information data table ", exchanges its VLAN ID VLAN ID according to specifying during packet exchange between any two interfaces of the equipment of finishing, it mainly may further comprise the steps:
51), the LAN data bag that enters is added the VLAN ID of " label forwarding information data table " indication, recomputate the frame check sign indicating number, from the interface output of " label forwarding information data table " indication;
52), the LAN data bag that enters is exported from the interface of " label forwarding information data table " indication;
53), the original VLAN ID VLAN of the virtual LAN data bag ID that enters is replaced to the new VLAN ID of " label forwarding information data table " indication, recomputate the frame check sign indicating number, from the interface dateout bag of " label forwarding information data table " indication;
54), with the original VLAN ID of the virtual LAN data bag that enters according to " label forwarding information data table " indication deletion, recomputate the frame check sign indicating number, from the interface dateout bag of " label forwarding information data table " indication.
As shown in Figure 3, it is as follows to the basic procedure of the application implementation of the Virtual Channel realization data forwarding of interface b to set up interface a among the present invention: a certain interface a such as this equipment is interface 1, vlan id 1=3 (decimal system), another interface b is interface 2, vlan id 2=5 (decimal system), and it is achieved as follows:
Packet from a or b interface receive can be divided into local area network (LAN) (as Ethernet) frame, IEEE802.1Q frame two classes.The interface that transmits the IEEE802.1Q frame is called labelization (Taged) interface, and the interface that transmits local area network (LAN) (as Ethernet) frame is labelization (Untaged) interface not.
At first, by configuration (by configured port or the Long-distance Control of LVCD), set a, the b interface is Taged interface (this information is recorded into the PVID tables of data of a, b interface), the vlan id that sets a interface vlan id simultaneously and be 3 VLAN and b interface is 5 VLAN interconnection (this information is recorded into the TFIB table).
Finish after the setting, LVCD waits for a, the input of b interface data.If detect a interface packet is arranged, at first judge whether it is qualified a certain class packet (PVID according to this port is set to IEEE802.1Q),, will be dropped (drop) if not the IEEE802.1Q frame.Otherwise,, judge whether to be the correct data bag, if not then abandoning by checking the FCS (Frame CheckSequence) of IEEE802.1Q frame.Next step LVCD reads TFIB (Tag Forwarding Information Base), find that this interface vlan id is that 3 packets need is forwarded to the b interface, by controlled function device and internal bus, this vlan id is changed into 5, regenerates FCS, output to interface b then.If detect the b interface packet is arranged, at first judge whether it is qualified a certain class packet (PVID according to this port is set to IEEE802.1Q),, will be dropped (drop) if not the IEEE802.1Q frame.Otherwise,, judge whether to be the correct data bag, if not then abandoning by checking the FCS (Frame CheckSequence) of IEEE802.1Q frame.Next step LVCD reads TFIB (Tag Forwarding Information Base), find that this interface Vlan id is that 5 packets need is forwarded to a interface, by controlled function device and internal bus, this vlan id is changed into 3, regenerates FCS, output to interface a then.
When like this, this LVCD sends to interface b with regard to having finished packet with vlan1 among the interface a id of vlan1 is converted to the id of vlan2; And, when the packet of vlan2 among the interface b is sent to interface a the id of vlan2 is converted to the id of vlan1, realized that vlan2 with the vlan1 of interface a and interface b couples together the formation Virtual Channel.
Claims (3)
1, a kind of data forwarding method of realizing that the local area network (LAN) Virtual Channel transmits is characterized in that may further comprise the steps:
1), whether the interface of judgment device have packet to arrive, if not then wait for, if there is packet to arrive, then
2), check the frame check sign indicating number of packet, if the incorrect data bag then abandons this packet, otherwise
3), judge whether type of data packet and the input interface type enter mate, if do not match, then abandon this packet, otherwise
4), check " label forwarding information data table " whether with good grounds input interface or the output interface that clearly indicates this packet of input packet or VLAN ID of dateout bag, if " label forwarding information data table " be clearly indication not, then abandon this packet, otherwise
5), equipment is according to the indication of " label forwarding information data table ", exchanges its VLAN ID according to specifying during packet exchange between any two interfaces of the equipment of finishing.
2, the data forwarding method that transmits of realization local area network (LAN) Virtual Channel according to claim 1 is characterized in that judging in the above-mentioned steps 3 whether the type of data packet that enters and input interface type mate may further comprise the steps:
31), judge the type of data packet enter, if the LAN data bag then forwards step 33 to, if the virtual LAN data bag, then
32), judge and the type of input interface, then to abandon this packet if input interface is the not label interface that transmits the LAN data bag; If input interface is the interface of label that transmits the virtual LAN data bag, then forward step 4 to;
33), judge and the type of input interface, then to abandon this packet if input interface is the interface of label that transmits the virtual LAN data bag, if input interface is the not label interface that transmits the LAN data bag, then forward above-mentioned steps 4 to.
3, the data forwarding method that transmits of realization local area network (LAN) Virtual Channel according to claim 1, the operation of exchanging its VLAN ID according to the appointment of label forwarding information data table when it is characterized in that packet exchange between any two interfaces of the equipment of finishing in the above-mentioned steps 5 may further comprise the steps:
51), the LAN data bag that enters is added the VLAN ID of " label forwarding information data table " indication, recomputate the frame check sign indicating number, from the interface output of " label forwarding information data table " indication;
52), the LAN data bag that enters is exported from the interface of " label forwarding information data table " indication;
53), the original VLAN ID of virtual LAN data bag that enters is replaced to the new VLAN ID of " label forwarding information data table " indication, recomputate the frame check sign indicating number, from the interface dateout bag of " label forwarding information data table " indication;
54), with the original VLAN ID of the virtual LAN data bag that enters according to " label forwarding information data table " indication deletion, recomputate the frame check sign indicating number, from the interface dateout bag of " label forwarding information data table " indication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01130172 CN1125545C (en) | 2001-12-31 | 2001-12-31 | Data forwarding method for implementing virtual channel transmission in LAN |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01130172 CN1125545C (en) | 2001-12-31 | 2001-12-31 | Data forwarding method for implementing virtual channel transmission in LAN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1356806A true CN1356806A (en) | 2002-07-03 |
| CN1125545C CN1125545C (en) | 2003-10-22 |
Family
ID=4669797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01130172 Expired - Lifetime CN1125545C (en) | 2001-12-31 | 2001-12-31 | Data forwarding method for implementing virtual channel transmission in LAN |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1125545C (en) |
Cited By (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004030281A1 (en) * | 2002-09-27 | 2004-04-08 | Huawei Technologies Co., Ltd. | A method of transmitting data of different users in the vc -trunck of man |
| WO2004039001A1 (en) * | 2002-10-25 | 2004-05-06 | Huawei Technologies Co., Ltd. | The sub-rate transmission method of user data service in transmission apparatus of wan |
| WO2004068791A1 (en) * | 2003-01-28 | 2004-08-12 | Huawei Technologies Co., Ltd. | Method and system for receiving and transmitting different data frames on digital trensmission network |
| WO2004114605A1 (en) * | 2003-06-20 | 2004-12-29 | Zte Corporation | A method for ethernet network service safety isolation |
| WO2005008957A1 (en) * | 2003-07-21 | 2005-01-27 | Zte Corporation | The method of implementing vlan on the device of wireless lan access point |
| WO2006094440A1 (en) * | 2005-03-08 | 2006-09-14 | Hangzhou H3C Technologies Co., Ltd. | A method of virtual local area network exchange and the network device thereof |
| WO2006108344A1 (en) * | 2005-04-12 | 2006-10-19 | Huawei Technologies Co., Ltd. | Method for realizing vpn |
| CN1297106C (en) * | 2003-04-15 | 2007-01-24 | 华为技术有限公司 | Method of isolating user's ports of Ethernet exchanger |
| CN1315293C (en) * | 2002-11-26 | 2007-05-09 | 华为技术有限公司 | Method for realizing handshaking system in distributed network access equipment |
| CN1333565C (en) * | 2005-10-20 | 2007-08-22 | 华为技术有限公司 | Method for realizing message transmitting, access network and network apparatus |
| WO2007143944A1 (en) * | 2006-06-02 | 2007-12-21 | Hangzhou H3C Technologies Co., Ltd. | Method and apparatus for forwarding data in ethernet |
| CN100366031C (en) * | 2005-05-20 | 2008-01-30 | 北京交通大学 | Method for implementing support to paralel transmission of compression packet in IPv6 sensor network |
| CN100373897C (en) * | 2002-12-04 | 2008-03-05 | 华为技术有限公司 | A data forwarding method based on link quality |
| CN100382491C (en) * | 2005-09-28 | 2008-04-16 | 华为技术有限公司 | Service isolation transfer method |
| WO2008046281A1 (en) * | 2006-10-16 | 2008-04-24 | Huawei Technologies Co., Ltd. | Method and apparatus for establishing forwarding filtering table |
| CN100391177C (en) * | 2003-07-28 | 2008-05-28 | 华为技术有限公司 | Method for extending virtual Local area network number in exchanging equipment |
| CN100391196C (en) * | 2004-04-01 | 2008-05-28 | 华为技术有限公司 | Data exchange method based on virtual local area network |
| CN100407684C (en) * | 2006-08-03 | 2008-07-30 | 华为技术有限公司 | Method and system of user access virtual special LAN service |
| CN100413281C (en) * | 2005-03-24 | 2008-08-20 | 杭州华三通信技术有限公司 | Method for realizing virtual exchange using QinQ technique |
| CN100428737C (en) * | 2005-03-08 | 2008-10-22 | 杭州华三通信技术有限公司 | Method for reducing VPN network arranging |
| CN100440868C (en) * | 2005-12-20 | 2008-12-03 | 杭州华三通信技术有限公司 | Method for accessing virtual LAN |
| WO2008145050A1 (en) * | 2007-05-25 | 2008-12-04 | Huawei Technologies Co., Ltd. | Method of preventing transport leaks in hybrid switching networks by extension of the link layer discovery protocol (lldp) |
| CN100442771C (en) * | 2005-10-18 | 2008-12-10 | 华为技术有限公司 | Method for access network realizing double layer VLAN Ethernet message forwarding and access node |
| CN100442772C (en) * | 2005-10-19 | 2008-12-10 | 华为技术有限公司 | Bridge-connection transmitting method |
| CN100446503C (en) * | 2005-03-22 | 2008-12-24 | 杭州华三通信技术有限公司 | Enhanced VPN network optimization method and apparatus |
| CN100454890C (en) * | 2004-04-01 | 2009-01-21 | 华为技术有限公司 | Data exchange method based on virtual local area network |
| US7499456B2 (en) | 2002-10-29 | 2009-03-03 | Cisco Technology, Inc. | Multi-tiered virtual local area network (VLAN) domain mapping mechanism |
| US7660313B2 (en) | 2002-10-25 | 2010-02-09 | Huawei Technologies Co., Ltd. | Sub-rate transmission method for user data services in transmission devices of a metropolitan area network |
| CN101014026B (en) * | 2006-12-18 | 2010-05-19 | 联创科技(南京)有限公司 | Method for implementing general soft gateway of dynamic self-adaptive Radius system |
| CN101002441B (en) * | 2004-08-11 | 2010-06-23 | 日本电气株式会社 | Virtual LAN system and node device |
| CN1976317B (en) * | 2002-11-01 | 2010-07-21 | 微软公司 | Bridged cryptographic VLAN |
| CN101064682B (en) * | 2006-04-29 | 2010-08-04 | 华为技术有限公司 | Optical network terminal and its packet processing method thereof |
| CN101102188B (en) * | 2006-07-07 | 2010-08-04 | 华为技术有限公司 | A method and system for mobile access to VLAN |
| CN101227291B (en) * | 2007-01-18 | 2010-09-22 | 杭州华三通信技术有限公司 | Ethernet MAC layer crossing cascade connection system, transmission method and used chip thereof |
| CN101170415B (en) * | 2006-10-26 | 2010-12-29 | 杭州华三通信技术有限公司 | Crossed cascading system and transmission method for Ethernet physical layer and its application chip |
| CN101355514B (en) * | 2008-09-03 | 2011-03-16 | 中兴通讯股份有限公司 | Method for transmitting data packet with VLAN label in two-layer VPN |
| CN101160825B (en) * | 2005-02-01 | 2011-04-27 | 香港应用科技研究院有限公司 | System and method for efficient traffic processing |
| CN101399742B (en) * | 2007-09-28 | 2011-10-26 | 中国移动通信集团公司 | Data service network system and access method of data service |
| CN103152238A (en) * | 2002-07-17 | 2013-06-12 | 北电网络有限公司 | Hierarchical optical VPNs in a carrier's carrier VPN environment |
| US9047416B2 (en) | 2010-02-22 | 2015-06-02 | Nec Corporation | Communication control system, switching node, communication control method and communication control program including PCI express switch and LAN interface |
| CN115297068A (en) * | 2022-07-28 | 2022-11-04 | 浙江源创智控技术有限公司 | Method for expanding equipment network card based on IP179N switch chip |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100401721C (en) * | 2005-09-12 | 2008-07-09 | 中兴通讯股份有限公司 | Method for building intelligent virtual switching link |
| CN100382531C (en) * | 2005-10-28 | 2008-04-16 | 杭州华三通信技术有限公司 | Switching in method for virtual special network and realizing apparatus |
-
2001
- 2001-12-31 CN CN 01130172 patent/CN1125545C/en not_active Expired - Lifetime
Cited By (50)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152238A (en) * | 2002-07-17 | 2013-06-12 | 北电网络有限公司 | Hierarchical optical VPNs in a carrier's carrier VPN environment |
| WO2004030281A1 (en) * | 2002-09-27 | 2004-04-08 | Huawei Technologies Co., Ltd. | A method of transmitting data of different users in the vc -trunck of man |
| US7660313B2 (en) | 2002-10-25 | 2010-02-09 | Huawei Technologies Co., Ltd. | Sub-rate transmission method for user data services in transmission devices of a metropolitan area network |
| WO2004039001A1 (en) * | 2002-10-25 | 2004-05-06 | Huawei Technologies Co., Ltd. | The sub-rate transmission method of user data service in transmission apparatus of wan |
| US7499456B2 (en) | 2002-10-29 | 2009-03-03 | Cisco Technology, Inc. | Multi-tiered virtual local area network (VLAN) domain mapping mechanism |
| CN1708957B (en) * | 2002-10-29 | 2010-07-07 | 思科技术公司 | Multi- tiered virtual local area network (VLAN) domain mapping mechanism |
| CN1976317B (en) * | 2002-11-01 | 2010-07-21 | 微软公司 | Bridged cryptographic VLAN |
| CN1708940B (en) * | 2002-11-01 | 2011-12-14 | 微软公司 | Bridged cryptographic VLAN |
| CN1315293C (en) * | 2002-11-26 | 2007-05-09 | 华为技术有限公司 | Method for realizing handshaking system in distributed network access equipment |
| CN100373897C (en) * | 2002-12-04 | 2008-03-05 | 华为技术有限公司 | A data forwarding method based on link quality |
| US7565455B2 (en) | 2003-01-28 | 2009-07-21 | Huawei Technologies Co., Ltd. | System and method of accessing and transmitting different data frames in a digital transmission network |
| WO2004068791A1 (en) * | 2003-01-28 | 2004-08-12 | Huawei Technologies Co., Ltd. | Method and system for receiving and transmitting different data frames on digital trensmission network |
| CN1297106C (en) * | 2003-04-15 | 2007-01-24 | 华为技术有限公司 | Method of isolating user's ports of Ethernet exchanger |
| CN100463440C (en) * | 2003-06-20 | 2009-02-18 | 中兴通讯股份有限公司 | Method for ethernet service safety isolation |
| WO2004114605A1 (en) * | 2003-06-20 | 2004-12-29 | Zte Corporation | A method for ethernet network service safety isolation |
| WO2005008957A1 (en) * | 2003-07-21 | 2005-01-27 | Zte Corporation | The method of implementing vlan on the device of wireless lan access point |
| CN100391177C (en) * | 2003-07-28 | 2008-05-28 | 华为技术有限公司 | Method for extending virtual Local area network number in exchanging equipment |
| CN100454890C (en) * | 2004-04-01 | 2009-01-21 | 华为技术有限公司 | Data exchange method based on virtual local area network |
| CN100391196C (en) * | 2004-04-01 | 2008-05-28 | 华为技术有限公司 | Data exchange method based on virtual local area network |
| CN101002441B (en) * | 2004-08-11 | 2010-06-23 | 日本电气株式会社 | Virtual LAN system and node device |
| CN101160825B (en) * | 2005-02-01 | 2011-04-27 | 香港应用科技研究院有限公司 | System and method for efficient traffic processing |
| CN100428737C (en) * | 2005-03-08 | 2008-10-22 | 杭州华三通信技术有限公司 | Method for reducing VPN network arranging |
| WO2006094440A1 (en) * | 2005-03-08 | 2006-09-14 | Hangzhou H3C Technologies Co., Ltd. | A method of virtual local area network exchange and the network device thereof |
| CN100446503C (en) * | 2005-03-22 | 2008-12-24 | 杭州华三通信技术有限公司 | Enhanced VPN network optimization method and apparatus |
| CN100413281C (en) * | 2005-03-24 | 2008-08-20 | 杭州华三通信技术有限公司 | Method for realizing virtual exchange using QinQ technique |
| WO2006108344A1 (en) * | 2005-04-12 | 2006-10-19 | Huawei Technologies Co., Ltd. | Method for realizing vpn |
| CN100366031C (en) * | 2005-05-20 | 2008-01-30 | 北京交通大学 | Method for implementing support to paralel transmission of compression packet in IPv6 sensor network |
| CN100382491C (en) * | 2005-09-28 | 2008-04-16 | 华为技术有限公司 | Service isolation transfer method |
| CN100442771C (en) * | 2005-10-18 | 2008-12-10 | 华为技术有限公司 | Method for access network realizing double layer VLAN Ethernet message forwarding and access node |
| CN100442772C (en) * | 2005-10-19 | 2008-12-10 | 华为技术有限公司 | Bridge-connection transmitting method |
| US7965709B2 (en) | 2005-10-19 | 2011-06-21 | Huawei Technologies Co., Ltd. | Bridge forwarding method and apparatus |
| CN1333565C (en) * | 2005-10-20 | 2007-08-22 | 华为技术有限公司 | Method for realizing message transmitting, access network and network apparatus |
| CN100440868C (en) * | 2005-12-20 | 2008-12-03 | 杭州华三通信技术有限公司 | Method for accessing virtual LAN |
| US10250411B2 (en) | 2006-04-29 | 2019-04-02 | Huawei Technologies Co., Ltd. | Message processing method and apparatus |
| US9794086B2 (en) | 2006-04-29 | 2017-10-17 | Huawei Technologies Co., Ltd. | Retagging of VLAN upstream messages |
| CN101064682B (en) * | 2006-04-29 | 2010-08-04 | 华为技术有限公司 | Optical network terminal and its packet processing method thereof |
| US8149870B2 (en) | 2006-06-02 | 2012-04-03 | Hangzhou H3C Technologies Co., Ltd. | Method and apparatus for forwarding data in ethernet |
| WO2007143944A1 (en) * | 2006-06-02 | 2007-12-21 | Hangzhou H3C Technologies Co., Ltd. | Method and apparatus for forwarding data in ethernet |
| CN101102188B (en) * | 2006-07-07 | 2010-08-04 | 华为技术有限公司 | A method and system for mobile access to VLAN |
| CN100407684C (en) * | 2006-08-03 | 2008-07-30 | 华为技术有限公司 | Method and system of user access virtual special LAN service |
| WO2008046281A1 (en) * | 2006-10-16 | 2008-04-24 | Huawei Technologies Co., Ltd. | Method and apparatus for establishing forwarding filtering table |
| CN101170415B (en) * | 2006-10-26 | 2010-12-29 | 杭州华三通信技术有限公司 | Crossed cascading system and transmission method for Ethernet physical layer and its application chip |
| CN101014026B (en) * | 2006-12-18 | 2010-05-19 | 联创科技(南京)有限公司 | Method for implementing general soft gateway of dynamic self-adaptive Radius system |
| CN101227291B (en) * | 2007-01-18 | 2010-09-22 | 杭州华三通信技术有限公司 | Ethernet MAC layer crossing cascade connection system, transmission method and used chip thereof |
| US8442072B2 (en) | 2007-05-25 | 2013-05-14 | Futurewei Technologies, Inc. | Method of preventing transport leaks in hybrid switching networks by extension of the link layer discovery protocol (LLDP) |
| WO2008145050A1 (en) * | 2007-05-25 | 2008-12-04 | Huawei Technologies Co., Ltd. | Method of preventing transport leaks in hybrid switching networks by extension of the link layer discovery protocol (lldp) |
| CN101399742B (en) * | 2007-09-28 | 2011-10-26 | 中国移动通信集团公司 | Data service network system and access method of data service |
| CN101355514B (en) * | 2008-09-03 | 2011-03-16 | 中兴通讯股份有限公司 | Method for transmitting data packet with VLAN label in two-layer VPN |
| US9047416B2 (en) | 2010-02-22 | 2015-06-02 | Nec Corporation | Communication control system, switching node, communication control method and communication control program including PCI express switch and LAN interface |
| CN115297068A (en) * | 2022-07-28 | 2022-11-04 | 浙江源创智控技术有限公司 | Method for expanding equipment network card based on IP179N switch chip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1125545C (en) | 2003-10-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1125545C (en) | Data forwarding method for implementing virtual channel transmission in LAN | |
| CN1254059C (en) | Method of realizing special multiple-protocol label exchanging virtual network | |
| CN1199400C (en) | Master-standby switching and load sharing system and method based on Ethernet access platform | |
| CN1691630A (en) | Method and system for increasing available user VLAN space | |
| CN101047618A (en) | Method and system for acquiring network route information | |
| CN1823546A (en) | Method and apparatus for forwarding packets in an Ethernet passive optical network | |
| CN1437815A (en) | System and process for high-availability, direct, flexible and scalable switching of data packets in broadband networks | |
| CN101035050A (en) | Processing method of the virtual LAN aggregation | |
| CN1502195A (en) | System, method and apparatus that isolate virtual private network (VPN) and best effort traffic to resist denial of service attacks | |
| CN1433190A (en) | Exchange node classifying and marking rules | |
| CN1791065A (en) | Method for accessing virtual LAN | |
| CN1578252A (en) | Architecture for bridged Ethernet residential access networks | |
| CN1183726C (en) | Network organizing method based on multi protocol label exchange virtual private network | |
| CN1863127A (en) | Method for core network access to multi-protocol sign exchange virtual special network | |
| CN1297105C (en) | Method for implementing multirole main machine based on virtual local network | |
| CN1859417A (en) | Method for realizing multiple network device link aggregation | |
| CN1738258A (en) | Subscriber unit redundant system and subscriber unit redundancy approach | |
| CN1266887C (en) | Virtual switch for supplying virtual LAN service and method | |
| CN1185831C (en) | Method for managing users in wide hand city network | |
| CN1929435A (en) | Packet transfer device and method | |
| CN1157902C (en) | Ip address mapping and transmitting method for non-broadcast multipath access network | |
| CN1897596A (en) | Method and system for controlling access address by virtual medium in Ethernet | |
| CN101043392A (en) | Apparatus and base station equipment for transmitting IP packet in WiMAX network | |
| CN1838633A (en) | Enhanced VPN network optimization method and apparatus | |
| CN1816003A (en) | Telecommunication method and apparatus of dissimilar chain protocol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUAWEI TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LIU JUNMIN Effective date: 20051216 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20051216 Address after: 518000 Bantian HUAWEI headquarters office building, Longgang District, Guangdong, Shenzhen Patentee after: Huawei Technologies Co., Ltd. Address before: 510620, 21 south, Guangzhou Telecom Building, No. 128 Sports East Road, Guangzhou, Guangdong Patentee before: Liu Junmin |
|
| CX01 | Expiry of patent term |
Granted publication date: 20031022 |
|
| CX01 | Expiry of patent term |