CN100531113C - A routing method for convergence service - Google Patents
A routing method for convergence service Download PDFInfo
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- CN100531113C CN100531113C CNB2004100341835A CN200410034183A CN100531113C CN 100531113 C CN100531113 C CN 100531113C CN B2004100341835 A CNB2004100341835 A CN B2004100341835A CN 200410034183 A CN200410034183 A CN 200410034183A CN 100531113 C CN100531113 C CN 100531113C
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/25—Routing or path finding in a switch fabric
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
- H04L49/3009—Header conversion, routing tables or routing tags
Abstract
The invention discloses route method for convergence affair, which is that configures convergence affair node to access/convergence group and properties separated for every group; the process of transmitting data packet comprises: a. receives service flow data packet on access end port, acquires eigen value of characteristic information field set by the access/convergence group in data packet, and use the eigen information value as index and search eigen information table; b. if searches no item contained the eigen information value, then executes step c after building the table item; or else according to content of the table item executes step c or throw away the data packet; c. transmits the data packet to convergence end. The method in invention need not to configure exact eigen information value for every user's service flow, can decrease load of network configuration management and subsequent maintenance.
Description
Technical field
The present invention relates to convergence service, particularly relate to a kind of method for routing of convergence service.
Background technology
At present, data service proportion in communication network is more and more higher, and these professional major parts are business of networking.Business of networking belongs to the convergent type business from service route.According to the direction of Business Stream, convergence service comprises two kinds: a kind of is that Business Stream converges to a network and network interface (NNI) from several users network interface (UNI), is mainly used in the access node in the network; Another kind is that Business Stream converges to a UNI from several NNI, is mainly used in the aggregation node in the network.The UNI here mainly is meant the port that network links to each other with subscriber equipment, and NNI is meant the port that network links to each other with other network equipments.For example, when adopting synchronous digital hierarchy (SDH) equipment to transmit Ethernet service, concerning SDH equipment, ethernet port is exactly UNI usually, and the SDH line interface is exactly NNI.
In general, need carry out user traffic flow authentication, charging etc. to business of networking.The foundation of authentication can be the different values of the partial information field in the traffic data bag.With the partial information field of calling in the following text in the packet is the characteristic information field, such as Virtual Local Area Network label, Multi-Protocol Label Switch (MPLS) label, media interviews control (MAC) address, address etc. can be as the characteristic information field for procotol (IP).The value of characteristic information field is called the characteristic information value, the different different user traffic flow of characteristic information value representation.
The service convergence mechanism that prior art adopts usually is exactly the route that disposes in access node or aggregation node based on each characteristic information value.With Business Stream from UNI to NNI converge, the characteristic information field is that the VLAN label is an example, in order to realize service convergence, just need dispose on each UNI will be by VLAN label (the VLAN ID of corresponding UNI Business Stream, be called for short VID), also need dispose on NNI simultaneously accordingly will be by the VID of this NNI Business Stream.When UNI receives Business Stream, obtain the VID in the duty Business Stream, then with the VID that obtains with to judge whether to be forwarded to NNI by the VID of Business Stream and will comparing of on NNI, disposing in configuration on the UNI in advance by the VID of Business Stream.
As shown in Figure 1, dispose the VID that will pass through the Business Stream of UNI1, be respectively 2,3 and 4 at UNI1; Dispose the VID that will pass through the Business Stream of UNI2 at UNI2, be respectively 5,6 and 7; On NNI, dispose the VID that will pass through all Business Streams of this NNI simultaneously, be respectively 2,3,4,5,6 and 7.Like this, when UNI1 receives Business Stream VID when being 2,3 or 4, just work flow is dealt into NNI; When UNI2 receives Business Stream VID when being 5,6 or 7, also work flow is dealt into NNI; If the Business Stream VID that UNI1 receives is not 2,3 or 4, if or the Business Stream VID that receives of UNI2 be not 5,6 or 7, then this Business Stream is considered as data in violation of rules and regulations, this Business Stream is abandoned.If NNI last pre-configured to be 2,4,6 and 7 by the Business Stream VID of this NNI, then the Business Stream VID that receives as UNI1 is 3, or the Business Stream VID that UNI2 receives is 5 o'clock, these Business Streams can not be forwarded to this NNI, and this Business Stream can be considered as data in violation of rules and regulations, this Business Stream is abandoned.Therefore, must be in advance configuration will be by the VID of Business Stream on UNI and NNI, and dispose on the UNI will be by Business Stream VID must with on NNI, dispose corresponding by the VID of Business Stream, could realize converging of business like this.It also is as a same reason that Business Stream converges to UNI from NNI.
This shows, when having different in a large number user traffic flow, if adopt the aggregation scheme of prior art, just need represent different user traffic flow with a large amount of different VID, for example, if 4K VLAN arranged, just need 4K VID to represent the user traffic flow of this 4K VLAN, also need will pass through 4K VID of Business Stream in the port arrangement of access node or aggregation node, at this moment, the workload of network configuration management is very large.And, if carried out the change of characteristic information value, also need to change accordingly in equipment end at user side, therefore, the follow-up maintenance workload also can be very big.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method for routing of convergence service, make the concrete characteristic information value that it needn't the configuration feature information field just can realize converging of business, the workload of minimizing network configuration management, and can reduce the workload of follow-up maintenance.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of method for routing of convergence service, this method is used for the characteristic information field of Business Stream authentication, access of converging port and at least two access interface/converge group for the convergence service node configuration comprises; Be each access/converge characteristic information value of configuration set and incoming end slogan characteristic of correspondence information table; The process that this method is transmitted packet may further comprise the steps:
A. access interface receives the traffic data bag, obtains that this inserts in the packet/converge the characteristic information value of the characteristic information field that group comprises, and with this characteristic information value as indexed search characteristic information table;
If b. do not retrieve the list item that comprises this characteristic information value, then set up execution in step c behind this list item;
If retrieve the list item that comprises this characteristic information value, then according to this contents in table, execution in step c is maybe with this data packet discarding;
C. this packet is forwarded to and converges port.
Described characteristic information table initially can be set to empty table;
The described method of setting up this list item of step b is: the incoming end slogan of the characteristic information value obtained and this input is write the characteristic information table set up this list item;
Step b is described according to this contents in table execution in step c maybe with the method for this data packet discarding to be: whether the incoming end slogan of judging this input is identical with the incoming end slogan of this list item, if identical then direct execution in step c; Otherwise according to the attribute of this access interface, with data packet discarding, maybe the incoming end slogan of this list item is changed into execution in step c behind the incoming end slogan of this input.
Described attribute according to this access interface with data packet discarding, maybe the incoming end slogan of this list item is changed into this input the incoming end slogan method can for:
Whether the guard mode attribute of judging access interface in this list item for there being protection, if, then with this data packet discarding; Otherwise the incoming end slogan of this list item is rewritten as the incoming end slogan of this input.
Among the step a, described with this characteristic information value as indexed search characteristic information table before, may further include: judge whether this characteristic information value is the characteristic information value of broadcast type, if then directly this packet is forwarded to and converges port; Otherwise carry out described with the step of this characteristic information value as indexed search characteristic information table.
The described method of setting up list item may further include: the aging characteristics that dispose this list item according to the aging characteristics of the access interface of this input automatically; If this list item has aging characteristics, then, this list item picks up counting for starting an age timer;
If the access interface that comprised from this list item before this list item ageing time arrives receives the data that comprise this list item special characteristic value of information, then this age timer stops timing, and with reclocking after this age timer initialization; Otherwise when the ageing time of this list item arrived, this age timer stopped timing, and deletes this list item.
Among the step b, when the incoming end slogan in this list item is identical with the incoming end slogan of this input, this method may further include: judge whether this list item has aging characteristics, if this list item has aging characteristics, with the age timer initialization of this list item correspondence; Otherwise do not handle.
Among the step b, may further include change the incoming end slogan of this input at the incoming end slogan of this list item after: the aging characteristics that upgrade this list item according to the aging characteristics of the access interface of this input; If this input access interface has aging characteristics, then, the list item that comprises this access interface picks up counting for starting an age timer;
If the access interface that comprised from this list item before this list item ageing time arrives receives the data that comprise this list item special characteristic value of information, then this age timer stops timing, and with reclocking after this age timer initialization; Otherwise when the ageing time of this list item arrived, this age timer stopped timing, and deletes this list item.
In addition, this method further comprises: converge port and receive packet, obtain in this packet the characteristic information value of the characteristic information field that inserts/converge the group defined; This characteristic information value as indexed search characteristic information table, if do not retrieve the list item that comprises this characteristic information value, is then broadcasted with this data packet discarding or to all corresponding access interface; If retrieve the list item that comprises this characteristic information value, then the incoming end slogan according to this list item is forwarded to corresponding access interface with packet.
Wherein, described converge port with this characteristic information value as indexed search characteristic information table before, this method further comprises: whether the judging characteristic value of information is the characteristic information value of broadcast type, if then directly this packet is forwarded to all access interface; Otherwise carry out described with the step of this characteristic information value as indexed search characteristic information table.
In the such scheme, described characteristic information field can be VLAN label or MPLS label or MAC Address or IP address.
By such scheme as can be seen, key of the present invention is: insert/converge group by configuration and dispose simple trunking relation and characteristic information field, and be the access of being disposed/converge group configuration characteristic of correspondence information table automatically, access interface is dealt into work flow according to institute's configured port relation of converging and characteristic information table and converges port and carry out service convergence.
Therefore, this convergence service automatic routing method provided by the present invention, concrete characteristic information value that need not pre-configured characteristic information field, only need simple trunking relation of configuration and characteristic information field just can realize professional converging, thereby simplified the management of characteristic information value, reduced the workload of network configuration management.And when user side characteristic information value changed, access interface can adapt to the variation of user side characteristic information value automatically and transmit Business Stream, has reduced the workload of follow-up maintenance.
Description of drawings
Fig. 1 carries out the collocation method schematic diagram of service convergence by VLAN for prior art;
Fig. 2 is for access interface and converge the port model schematic diagram;
Fig. 3 is the flow chart of the method for routing of convergence service of the present invention.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
The present invention inserts/converges group by configuration and comes configured port relation of converging and characteristic information field, and be the access of being disposed/converge group configuration characteristic of correspondence information table automatically, access interface is dealt into work flow according to institute's configured port relation of converging and characteristic information table and converges port and carry out service convergence.
Because it is identical with the convergence effect of two kinds of network example that converge to UNI from NNI that the present invention converges to NNI from UNI for Business Stream, below no longer distinguish UNI and NNI, access interface only is described and converges port that its model is as shown in Figure 2.This model comprises that one is converged port and a plurality of access interface, and wherein, access interface receives Business Stream, and according to certain judgment principle work flow is dealt into and converges port or directly abandon; Converge port and receive Business Stream, and work flow is dealt into corresponding access interface or to all access interface broadcasting or abandon according to certain judgment principle.
Based on model shown in Figure 2, the present invention specifically comprises layoutprocedure and the professional processing procedure that inserts/converge group.Wherein, the layoutprocedure that inserts/converge group is exactly the characteristic information field that configuration simple port relation of converging and configuration are used for the user traffic flow authentication.Inserting/converge group comprises: the characteristic information field that is used to authenticate, a plurality of access interface and one converge port, and wherein, the attribute of access interface comprises guard mode and aging characteristics.In the present invention, can be according to different characteristic information fields, be a plurality of accesses of certain node configuration/converge group.Professional processing procedure just is based on the access of being disposed/the converge group correspondence table of characteristic information value of configuration and incoming end slogan automatically, then according to the automatic route of this correspondence table realization convergence service.
At first, for one of node configuration inserts/converge group (Group), comprising:
(1) disposes this and insert/converge the characteristic information field that group is used for the user traffic flow authentication; Wherein, the characteristic information field can be any a section or a few segment data in the packet, and several segment datas can be continuous, also can be discontinuous; Preferably, the characteristic information field can be MPLS label, VLAN label, MAC Address and IP address etc.
(2) add particular port to this access/converge in the group as access interface, the guard mode and the aging characteristics of this access interface are set, and distribute the port numbers of a mutual exclusion for each access interface; Wherein, the guard mode of access interface and aging characteristics can adopt default setting, the default setting of the guard mode of access interface is to require decision according to the network information security of each access interface, if the information security of this access interface requires high, this access interface then is set has protection, otherwise the not protection of this access interface is set; Whether access interface is aging is by the connection status decision of access interface and node, is connected if access interface breaks away from node, and then this access interface has just worn out.So generally with the aging characteristics default setting of access interface for aging characteristics are arranged.
(3) add particular port to this access/converge in the group as converging port.
Secondly, for this correspondence table that inserts/converge characteristic information value of configuration set and incoming end slogan, be designated hereinafter simply as characteristic information table (InfoTable).The content of characteristic information table when initial condition is empty, that is to say, the characteristic information table is to dispose automatically in the processing procedure of business.
The attribute of characteristic information table comprises: the aging characteristics of characteristic information value, incoming end slogan and list item.Wherein, the aging characteristics of list item are to be provided with according to the aging characteristics of access interface are automatic.The aging characteristics of list item are meant in Preset Time, if do not receive the data that comprise the list item special characteristic value of information from certain access interface, represent that this list item is aging, then with this list item deletion.Therefore, each list item all needs an age timer to carry out timing to list item is whether aging usually.That is to say,, then after this list item is set up, just start an age timer and pick up counting if certain list item has aging characteristics; If receive the data that comprise the list item special characteristic value of information from certain access interface in Preset Time, then this age timer stops timing, and with reclocking after this age timer initialization; Otherwise when age timer arrived Preset Time, age timer stopped timing, and with this list item deletion.In the present embodiment, can claim that this Preset Time is the ageing time of list item, and the ageing time of list item just equals the ageing time of the access interface of this list item.
In the present embodiment, age timer is a counter that successively decreases along with the time, and the count value of counter just begins to successively decrease after list item is set up, and when count value is decremented to 0, represents that this list item is aging, then with this list item deletion.Like this, just can when rearranging, in time upgrade on network the list item in the characteristic information table automatically, to save the list item memory space.
Below insert/converge the Business Processing process of group for certain.
As shown in Figure 3, the process of carrying out service convergence based on the characteristic information table may further comprise the steps:
Wherein, after in the characteristic information table, adding or revising a list item, the capital disposes or upgrades the aging characteristics of this list item automatically according to the aging characteristics of the access interface of this list item, if this list item has aging characteristics, then with the age timer initialization of this list item correspondence.
In addition, when from converging port when receiving a packet, obtain in this packet the characteristic information value of the characteristic information field that inserts/converge the group defined; With this characteristic information value as indexed search characteristic information table, if do not retrieve this list item, two kinds of optionally operations then can be arranged: with this data packet discarding or to all corresponding access interface broadcasting, specifically how to operate the requirement of depending on information security usually, the network using drop policy high to information requirements, the network using broadcast strategy low to information requirements; If retrieve this list item, then the incoming end slogan according to this list item is forwarded to corresponding access interface with packet.
Below illustrate for a specific example.
For example, at first dispose one and insert/converge group Group1, Group1 comprises and converges port U, access interface A, B, C, D, E and F, and the characteristic information field is the VLAN label.In the present embodiment, the guard mode of access interface A, B, C, D, E and F and the default setting of aging characteristics are as shown in table 1:
| The incoming end slogan | A | B | C | D | E | F |
| The port protection state | Do not have | Have | Do not have | Do not have | Have | Do not have |
| The port aging characteristics | Have | Have | Have | Have | Have | Have |
Table 1
Be the characteristic information Table I nfoTable1 of a sky of Group1 configuration then, characteristic information Table I nfoTable1 is configuration automatically in the Business Processing process.The corresponding relation of supposing the characteristic information value of the packet that six access interface will receive and incoming end slogan is as shown in table 2:
| The incoming end slogan | A | B | C | D | E | F | B | D | E |
| VID | 1 | 2 | 3 | 4 | 5 | 6 | 1 | 4 | 2 |
| Packet numbers | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
Table 2
Because before receiving first packet, InfoTable1 is empty, and the characteristic information value of the first six packet has nothing in common with each other again in the table 2, so, when when six access interface receive packet respectively, these six characteristic information values all can be bound with the input incoming end slogan of correspondence, add in the characteristic information table as a list item, and the packet of correspondence is forwarded to converges port U.The aging characteristics of these list items are consistent with the aging characteristics of access interface.
Therefore, after access interface received preceding 6 packets, nfoTable1 was as shown in table 3 for the characteristic information Table I:
| The incoming end slogan | A | B | C | D | E | F |
| VID | 1 | 2 | 3 | 4 | 5 | 6 |
| The list item aging characteristics | Have | Have | Have | Have | Have | Have |
Table 3
As access interface B when to receive VID be 1 packet 7; obtaining its VID is 1; and according to this VID retrieval InfoTable1; retrieve this list item; and the incoming end slogan A in the list item is different with this incoming end slogan B; find not protection of access interface A simultaneously, be forwarded to then with incoming end slogan B covering incoming end slogan A, and with packet 7 and converge port U.
As access interface D when to receive VID be 4 packet 8, obtaining its VID is 4, and according to this VID retrieval InfoTable1, retrieve this list item, and the incoming end slogan D in the list item is identical with this incoming end slogan D, then packet 8 is forwarded to and converges port U, simultaneously, because this list item has aging characteristics, then is 4 the pairing age timer initialization of list item with VID.
As access interface E when to receive VID be 2 packet 9, obtaining its VID is 2, and according to this VID retrieval InfoTable1; retrieve this list item; and the incoming end slogan B in the list item is different with this incoming end slogan E, finds that simultaneously access interface B has protection, then abandons packet 9.
Like this, after access interface received 9 packets, nfoTable1 was as shown in table 4 for the characteristic information Table I:
| The incoming end slogan | B | B | C | D | E | F |
| VID | 1 | 2 | 3 | 4 | 5 | 6 |
| The list item aging characteristics | Have | Have | Have | Have | Have | Have |
Table 4
As seen, the present invention need not to dispose concrete characteristic information value, as long as the simple trunking relation of configuration just can realize professional converging automatically, reduced the workload of network configuration management, and, access interface can adapt to the variation of user side characteristic information value automatically, has reduced the workload of follow-up maintenance.
For some specific characteristic information field, as MAC Address, characteristic information value with broadcast type can be set, when receiving the packet that has broadcast type characteristic information value from access interface, then converge port without tabling look-up just this packet to be forwarded to; When from converging port when receiving the packet that has broadcast type characteristic information value, then just this packet is forwarded to all access interface without tabling look-up.
In a word, the above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1, a kind of method for routing of convergence service is characterized in that, this method is used for the characteristic information field of Business Stream authentication, access of converging port and at least two access interface/converge group for the convergence service node configuration comprises; Be each access/converge characteristic information value of configuration set and incoming end slogan characteristic of correspondence information table; The process that this method is transmitted packet may further comprise the steps:
A. access interface receives the traffic data bag, obtains that this inserts in the packet/converge the characteristic information value of the characteristic information field that group comprises, and with this characteristic information value as indexed search characteristic information table;
If b. do not retrieve the list item that comprises this characteristic information value, then set up execution in step c behind this list item;
If retrieve the list item that comprises this characteristic information value, then according to this contents in table, execution in step c is maybe with this data packet discarding;
C. this packet is forwarded to and converges port.
2, method according to claim 1 is characterized in that, described characteristic information table is initially set to empty table;
The described method of setting up this list item of step b is: the incoming end slogan of the characteristic information value obtained and this input is write the characteristic information table set up this list item;
Step b is described according to this contents in table execution in step c maybe with the method for this data packet discarding to be: whether the incoming end slogan of judging this input is identical with the incoming end slogan of this list item, if identical then direct execution in step c; Otherwise according to the attribute of this access interface, with data packet discarding, maybe the incoming end slogan of this list item is changed into execution in step c behind the incoming end slogan of this input.
3, method according to claim 2 is characterized in that, the method that described attribute according to this access interface with data packet discarding, maybe changes the incoming end slogan of this list item into the incoming end slogan of this input is:
Whether the guard mode attribute of judging access interface in this list item for there being protection, if, then with this data packet discarding; Otherwise the incoming end slogan of this list item is rewritten as the incoming end slogan of this input.
4, method according to claim 1, it is characterized in that, among the step a, described with this characteristic information value as indexed search characteristic information table before, further comprise: judge whether this characteristic information value is the characteristic information value of broadcast type, if then directly this packet is forwarded to and converges port; Otherwise carry out described with the step of this characteristic information value as indexed search characteristic information table.
5, method according to claim 2 is characterized in that, the described method of setting up list item further comprises: the aging characteristics that dispose this list item according to the aging characteristics of the access interface of this input automatically; If this list item has aging characteristics, then, this list item picks up counting for starting an age timer;
If the access interface that comprised from this list item before this list item ageing time arrives receives the data that comprise this list item special characteristic value of information, then this age timer stops timing, and with reclocking after this age timer initialization; Otherwise when the ageing time of this list item arrived, this age timer stopped timing, and deletes this list item.
6, method according to claim 5, it is characterized in that, among the step b, when the incoming end slogan in this list item is identical with the incoming end slogan of this input, this method further comprises: judge whether this list item has aging characteristics, if this list item has aging characteristics, with the age timer initialization of this list item correspondence; Otherwise do not handle.
7, method according to claim 5 is characterized in that, among the step b, a laggard step of incoming end slogan that changes this input at the incoming end slogan of this list item into comprises: the aging characteristics that upgrade this list item according to the aging characteristics of the access interface of this input; If this input access interface has aging characteristics, then, the list item that comprises this access interface picks up counting for starting an age timer;
If the access interface that comprised from this list item before this list item ageing time arrives receives the data that comprise this list item special characteristic value of information, then this age timer stops timing, and with reclocking after this age timer initialization; Otherwise when the ageing time of this list item arrived, this age timer stopped timing, and deletes this list item.
8, method according to claim 1 is characterized in that, this method further comprises: converge port and receive packet, obtain in this packet the characteristic information value of the characteristic information field that inserts/converge the group defined; This characteristic information value as indexed search characteristic information table, if do not retrieve the list item that comprises this characteristic information value, is then broadcasted with this data packet discarding or to all corresponding access interface; If retrieve the list item that comprises this characteristic information value, then the incoming end slogan according to this list item is forwarded to corresponding access interface with packet.
9, method according to claim 8, it is characterized in that, described converge port with this characteristic information value as indexed search characteristic information table before, this method further comprises: whether the judging characteristic value of information is the characteristic information value of broadcast type, if then directly this packet is forwarded to all access interface; Otherwise carry out described with the step of this characteristic information value as indexed search characteristic information table.
According to claim 1 or 8 described methods, it is characterized in that 10, described characteristic information field is virtual LAN VLAN label or multi protocol label exchange MPLS label or media interviews control MAC Address or procotol IP address.
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| CNB2004100341835A CN100531113C (en) | 2004-04-23 | 2004-04-23 | A routing method for convergence service |
| PCT/CN2005/000559 WO2005101948A1 (en) | 2004-04-23 | 2005-04-22 | A method for routing the concourse service |
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| CNB2004100341835A CN100531113C (en) | 2004-04-23 | 2004-04-23 | A routing method for convergence service |
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| CN100544319C (en) * | 2006-01-25 | 2009-09-23 | 华为技术有限公司 | The system of selection of data service route and the distribution method of label |
| CN101184053B (en) * | 2007-12-29 | 2010-10-27 | 杭州华三通信技术有限公司 | LAN export link selecting method, device and routing device |
| CN101442547B (en) * | 2008-12-12 | 2012-04-04 | 华为技术有限公司 | Method, system and equipment for processing message |
| CN101969398A (en) * | 2010-09-17 | 2011-02-09 | 中兴通讯股份有限公司 | Aging method and system of MAC (Media Access Control) address |
| CN103856352A (en) * | 2014-02-20 | 2014-06-11 | 福建升腾资讯有限公司 | Method for achieving double-network cross-network-segment access based on single network card |
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| US6122279A (en) * | 1995-10-02 | 2000-09-19 | Virata Limited | Asynchronous transfer mode switch |
| US6181681B1 (en) * | 1997-12-29 | 2001-01-30 | 3Com Corporation | Local area network media access controller layer bridge |
| AU2002257444A1 (en) * | 2001-05-17 | 2002-11-25 | Solidum Systems Corporation | Distributed packet processing system with internal load distribution |
| US7453888B2 (en) * | 2002-08-27 | 2008-11-18 | Alcatel Lucent | Stackable virtual local area network provisioning in bridged networks |
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| VLAN在千兆位以太网交换机中的实现. 张鹤颖，窦文华.计算机应用研究，第7期. 2001 |
| VLAN在千兆位以太网交换机中的实现. 张鹤颖，窦文华.计算机应用研究，第7期. 2001 * |
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