CN1581789A - Exchange system basedon business grade exchange and its exchange method - Google Patents
Exchange system basedon business grade exchange and its exchange method Download PDFInfo
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- CN1581789A CN1581789A CN03140106.6A CN03140106A CN1581789A CN 1581789 A CN1581789 A CN 1581789A CN 03140106 A CN03140106 A CN 03140106A CN 1581789 A CN1581789 A CN 1581789A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/10—Flow control; Congestion control
- H04L47/24—Traffic characterised by specific attributes, e.g. priority or QoS
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/20—Support for services
- H04L49/205—Quality of Service based
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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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Abstract
The exchange system includes multiple RPR devices constituting a RPR ring through ports in RPR ringside. The exchange system is composed of RPR frame process unit, traffic grade process unit, upper ring exchange unit, and dispatch unit. RPR frame process unit treating RPR frames from RPR ring determines whether RPR frame is traffic of lower ring based on target MAC address of RPR frame. Traffic grade process unit classifies Ethernet traffic entered from local port. Upper ring exchange unit selects output ring based on principle of shortest path of target site. Dispatch unit outputs traffic, which is not traffic for local site, to RPR ring. The invention also discloses exchange method based on exchange system.
Description
Technical field
The present invention relates to a kind of switching system and switching method thereof, relate in particular to the classification of the A/B/C three class grades of service in the RPR technology and based on the system and method for the exchange and the scheduling of different business grade based on grade of service exchange.
Background technology
RPR (Resilient Packet Ring) technology is an emerging technology; purpose is exactly to set up to have that bandwidth is reusable, each node has RPR ring bandwidth usage, that have ring protection and service quality QoS (Quality of Service) ability that fair algorithm guarantees each node, and target inserts looped network at key looped network in metropolitan area and metropolitan area.In December, 2000, IEEE set up the IEEE802.17 standard group specially, and purpose is exactly to formulate RPRMAC (Media Access Control) the layer standard of encircling with RPR based on can setting up of RPR technology.
One of topmost feature of RPR technology is classified to business exactly, business is divided into A, B, C three class business, wherein category-A is a real time business, category-B is divided into two parts, B-CIR (CommittedInformation Rate) is a committed rate grade business, B-EIR (Excess Infprmation Rate) is for surpassing the business of committed rate grade, and the C class is a Best-Effort service, the class of service position of definition ServiceClass in frame structure.But present business all is carried on the Ethernet, therefore how the business with Ethernet is bridged on the RPR loop, and Ethernet service is fitted on the A/B/C class grade of service of RPR technology, guarantees that it is the problem that needs solve that customer service transmits according to priority level.
Summary of the invention
The technical problem that the present invention solves provides a switching system and a switching method thereof based on grade of service exchange, comprise the sorting technique of A, B in the RPR technology, C three class business and under the simultaneous situation of multiple sorting technique, how to carry out preferred, comprise exchange and bridge system between IEEE802.3 and the IEEE802.1 7 based on the grade of service, and based on the dispatching patcher of the grade of service, so that realize that Ethernet service is bridged on the RPR loop.
Technical scheme of the present invention is as follows:
A kind of switching system based on grade of service exchange, it comprises that a plurality of RPR equipment form a RPR ring by RPR loop side ports, and this switching system also comprises following part: RPR frame processing unit, professional classification processing unit, on encircle crosspoint and scheduling unit;
Described RPR frame processing unit is handled the RPR frame that the RPR loop enters, target MAC (Media Access Control) address according to the RPR frame judges whether it is the following ring business of this website, in this way, then this RPR frame is distributed to different local destination interfaces, as not being, then this RPR frame is sent to primary and less important transmit queue;
Described professional classification processing unit carries out grade of service classification to the Ethernet service that enters from local port;
The described ring crosspoint of going up is selected the output ring according to purpose website shortest path principle, and traffic frame is sent in the service queue of corresponding grade class of this output ring and line up, and waits for and dispatching;
Non-the website business that described scheduling unit enters the RPR loop is the business of described primary and less important transmission queue, and the business in the service queue of the corresponding different brackets class that enters of local port unifies scheduling, and exports from the RPR loop.
Described switching system, wherein, described professional classification processing unit also converts the ethernet frame that enters to the RPR frame.
Described switching system, wherein, the grade of service sorting technique of described professional classification processing unit is the business based on port, promptly the port numbers of the user-side port that enters according to data flow is carried out the business classification, it is provided with the default service classification configuration item of a port, and the business that enters from this user-side port all is configured to the grade of service that this port default service classification configuration item disposes.
Described switching system, wherein, the grade of service sorting technique of described professional classification processing unit is based on VLAN ID (Visual Local Area Network identification), if when data enter be the frame of band 802.1q, and VLAN mark wherein is effective, then use this VLAN ID number, otherwise use the scarce VLAN ID of this port to carry out grade of service classification; Simultaneously, being provided with one can be by user configured VLAN ID and class of service mapping table, and described data based this mapping table that enters is configured to the corresponding business grade.
Described switching system, wherein, the grade of service sorting technique of described professional classification processing unit be based on source/target MAC (Media Access Control) address group, and the mapping table of one source/target MAC (Media Access Control) address group and class of service is set, and the data flow that enters user-side port is carried out business according to this mapping table and classified.
Described switching system, wherein, described source/target MAC (Media Access Control) address group can be that the source and destination MAC Address all is specific, and perhaps source MAC is specific and target MAC (Media Access Control) address is any, and perhaps target MAC (Media Access Control) address is specific and source MAC is any.
Described switching system, wherein, described professional classification processing unit also uses a method for optimizing based on port, it is included in each port the one professional classification mode configuration register based on this port is set, when business when user-side port enters described switching system, described switching system can be inquired about the classification mode configuration register of this port, according to the professional sorting technique that inquires this business is carried out the business classification.
A kind of switching method based on grade of service exchange, its switching system comprises that a plurality of RPR equipment form a RPR ring by RPR loop side ports, and this switching system also comprises: RPR frame processing unit, professional classification processing unit, on encircle crosspoint and scheduling unit; Its key step comprises:
A) described switching system is handled the RPR frame that the RPR loop enters, target MAC (Media Access Control) address according to the RPR frame judges whether it is the following ring business of this website, in this way, then this RPR frame is distributed to different local destination interfaces, as not being, then this RPR frame is sent to primary and less important transmit queue;
B) described switching system carries out grade of service classification to the Ethernet service that enters from local port;
C) described switching system to last ring exchange handle, promptly select the output ring, and traffic frame sent in the service queue of corresponding grade class of this output ring and line up according to purpose website shortest path principle, wait for and dispatching;
D) described switching system comprises that to the processing of scheduling non-the website business that the RPR loop is entered is the described primary business that reaches less important transmission queue, and the business in the service queue of the corresponding different brackets class that enters of local port unifies scheduling, and exports from the RPR loop.
Described switching method, wherein, described professional classification processing unit converts the ethernet frame that enters to the RPR frame.
Described switching method, wherein, the grade of service sorting technique of described professional classification processing unit is based on the business of port, promptly the port numbers of the user-side port that enters according to data flow is carried out the business classification, it is provided with the default service classification configuration item of a port, and the business that enters from this user-side port all is configured to the grade of service that this port default service classification configuration item disposes.
Described switching method, wherein, the grade of service sorting technique of described professional classification processing unit is based on VLAN ID, if when data enter be the frame of band 802.1q, and VLAN mark wherein is effective, then use this VLAN ID number, otherwise use the scarce VLAN ID of this port to carry out grade of service classification; Simultaneously, being provided with one can be by user configured VLAN ID and class of service mapping table, and described data based this mapping table that enters is configured to the corresponding business grade.
Described switching method, wherein, the grade of service sorting technique of described professional classification processing unit is provided with the mapping table of one source/target MAC (Media Access Control) address group and class of service based on source/target MAC (Media Access Control) address group, and the data flow that enters user-side port is carried out the business classification according to this mapping table.
Described switching method, wherein, described source/target MAC (Media Access Control) address group can be that the source and destination MAC Address all is specific, and perhaps source MAC is specific and target MAC (Media Access Control) address is any, and perhaps target MAC (Media Access Control) address is specific and source MAC is any.
Described switching method, wherein, described professional classification processing unit also uses a method for optimizing based on port, it is included in each port the one professional classification mode configuration register based on this port is set, when business when user-side port enters described switching system, described switching system can be inquired about the classification mode configuration register of this port, according to the professional sorting technique that inquires this business is carried out the business classification.
A kind of switching system and switching method thereof provided by the invention based on grade of service exchange, because adopting above-mentioned switching system classifies to business, and under the simultaneous situation of multiple sorting technique, carry out preferred, realized the bridge joint of Ethernet service and RPR loop, a kind of effective switching system and method at the RPR technology are provided, this method can merge the multiple business sorting technique, carries out the business classification to the end user, and the business of different brackets is carried out different processing.Thereby the user to different brackets provides different service and prices to bring multiple strategy.
Description of drawings
Fig. 1 be of the present invention a kind of based on grade of service exchange switching system and switching method in based on the switching system block diagram of grade of service exchange;
Fig. 2 is the port arrangement register tables in the system of the present invention, comprising based on the default service classification configuration register and the professional classification mode configuration register of port;
Fig. 3 is the VLAN mapping table of system and method for the present invention, comprising the mapping relations of VLAN ID and class of service;
Fig. 4 is source of the present invention/target MAC (Media Access Control) address group mapping table, comprising the mapping relations of source/target MAC (Media Access Control) address group and class of service;
Fig. 5 is the mapping table of class of service configuration register of the present invention.
Embodiment
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical solution of the present invention:
Switching system based on grade of service exchange of the present invention, as shown in Figure 1, wherein RPR equipment generally comprises 2 RPR loop side ports, the frame that enters and export from this port is the RPR frame, have A, B, the professional class indication of C, and one group of user-side port, the user-side port majority is an ethernet port, the frame that enters and export from this port is an ethernet frame, and frame structure is not to be with A, B, the professional class indication of C.These a plurality of RPR equipment are formed a RPR ring by RPR loop side ports; the main pattern of described RPR equipment has two kinds of switch mode and route patterns; the present invention is primarily aimed at the business classification under the switch mode; but with this restriction as protection scope of the present invention, the present invention equally is not applicable to the equipment of route pattern yet.
Switching method based on grade of service exchange of the present invention, as shown in Figure 2, it comprises four parts: 1) the RPR frame is handled; 2) professional classification; 3) go up the ring exchange; 4) scheduling.
1, the RPR frame is handled
It mainly is that the RPR frame that enters from the RPR loop is handled that described RPR frame is handled, comprise the target MAC (Media Access Control) address according to the RPR frame judges whether it is the following ring business of this website, and be distributed to different local destination interfaces, and to not being that the business of this website is delivered in PTQ/STQ (the primary transmission queue of PTQ, the less important transmission queue of the STQ) service queue and gone.
2, professional classification
It mainly is the classification of the Ethernet service that enters from local port being carried out the A/B/C grade of service that described professional classification is handled.The processing of this part can comprise that also the ethernet frame that will enter converts this step of RPR frame to.
The professional sorting technique of the inventive method comprises three kinds, 1) based on the professional sorting technique of port; 2) based on the professional sorting technique of VLAN ID VLAN ID; 3) based on the professional sorting technique of source/target MAC (Media Access Control) address group; Formulated IEEE802.3 COS (Classof Service) position and A, the B of IEEE802.17, the mapping table of C business in addition in the IEEE802.17 standard, this also is a kind of possible professional sorting technique.
Below describe each professional sorting technique in detail:
1) based on the professional sorting technique of port: the port numbers that mainly is the user-side port that enters according to data flow is carried out the business classification, the method that adopts is exactly the default service classification configuration item that a port is set, as shown in Figure 2, the business that enters from this user-side port all is configured to the grade of service of this port default service classification configuration item configuration.
2) based on the professional sorting technique of VLAN ID: mainly be that when entering user-side port according to data flow VLAN ID number classified, if data are the frame of band 802.1q when entering, and VLAN mark wherein is effectively, then uses this VLAN ID number; Otherwise carry out the business classification default VLAN ID number that gets this port.Also being provided with one in addition can be by the mapping table of user configured VLAN ID and class of service, and as shown in Figure 3, described data based this table that enters user-side port is configured to the corresponding business grade.
3) based on the professional sorting technique of source/target MAC (Media Access Control) address group: the present invention is provided with the mapping table of one Zhang Yuan/target MAC (Media Access Control) address group and class of service, as shown in Figure 4, MAC Address group wherein, can be that MAC-MAC (being that the source and destination MAC Address all is specific), MAC-ANY (are that source MAC is specific, but target MAC (Media Access Control) address is arbitrarily), ANY-MAC (is that target MAC (Media Access Control) address is specific, but source MAC is arbitrarily) the MAC Address group of type, the described data flow that enters user-side port is carried out the business classification according to this allocation list.
Because the method for the professional classification of RPR has multiple, in same system, may exist simultaneously, the inventive method provides a kind of method for optimizing based on port, because all business all enter the RPR ring by some user-side port, therefore can be in the control of the enterprising industry affair of user-side port category classification method.Professional classification mode configuration register based on port is provided in the system and method for the present invention, as shown in Figure 2, each port all is provided with so configuration register, when business when user-side port enters system, this business classification mode configuration register of this port can be inquired about by system of the present invention, according to the professional sorting technique of concrete configuration this business is carried out the business classification.
Ring exchange on 3
The described processing procedure that goes up the ring exchange comprises, according to selecting the output ring to the shortest path principle of purpose website, and traffic frame sent to respectively in the A/B/C class service queue of this output ring and lines up, and waits for and dispatching.
4 scheduling
The processing of described scheduling comprises non-the website service traffics that the RPR loop is entered, it is the business in primary transmission queue of PTQ and the less important transmission queue of STQ, and the business in the A/B/C class service queue that enters of local port unifies scheduling, and exports from the RPR loop.
Below describe a preferred embodiment of the present invention in detail:
When data during, at first carry out the business classification and handle from certain port access arrangement of user side.
1, professional classification process
1) this business of systems inspection from which port enters, and supposes to enter from the i port;
2) search the port configuration list of this i port, extract the value of its professional classification mode configuration register,
The SCMode value if distinguish according to 802.1P, is then changeed step 3) as shown in Figure 2; If distinguish, then change step 4) according to port; If distinguish according to Vlan ID, then change step 5); If step 6) is then changeed in differentiation according to mac stream.
3) if this traffic frame is a band 802.1P mark, then according to the value of the COS position in the mark, otherwise think that the COS position is 0, search the mapping table of the A/B/C business of 802.1P-802.17, obtain concrete professional classification value as this professional class of service.Change step 7).
4) search the default service classification configuration register of the port configuration list of this port i, as shown in Figure 2, concrete professional classification value is as this professional class of service.Change step 7).
5) if this traffic frame is a band 802.1P mark, then according to the value of the VLAN mark in the mark, otherwise get the default VLAN ID value of this port, search described VLAN mapping table, obtain this VLAN corresponding service classification value as this professional class of service according to this VLAN ID.Change step 7).
6) search MAC Address group mapping table with the source and destination MAC Address of this traffic frame,, then get this clauses and subclauses corresponding service classification value as this professional class of service, otherwise use default class of service value (C class) if find the list item of coupling.Change step 7).
7) going up the ring exchange handles.
2, going up the ring exchange handles
1) searches the ring option table according to target MAC (Media Access Control) address, last ring option table provides the MAC Address of RPR website at user's MAC address and this user place and the corresponding relation of the RPR loop selection that obtains according to the shortest path principle, obtains the output RPR loop j to business according to tabling look-up.
2) grade of service that obtains is handled in classification according to business, this traffic frame is delivered in the A/B/C service queue of RPR loop j.
3) the modulation degree is handled
3, the RPR frame is handled
The RPR frame that enters from the RPR loop is handled.
1) systems inspection business from which loop of RPR enters, and supposes it is loop k;
2) system judges that whether the target MAC (Media Access Control) address of the RPR frame that this is professional is this website, if change step 3), otherwise changes step 5).
3) extract the target MAC (Media Access Control) address of expanding 802.3 frames of encapsulation in the RPR frame, search down the ring mac address table, following ring mac address table comprises the corresponding relation of MAC Address and local port, obtains the local port number m of this service needed output thus.
4) from this RPR frame, separate 802.3 frames, and export from local port m.Flow process finishes.
5) the RPR frame is put into respectively in PTQ and the STQ formation according to the grade of service in the RPR frame, wherein A service is put into PTQ, and other business are put among the STQ.Entering scheduling handles.
4, scheduling is handled
Dispatch the traffic frame of PTQ/STQ/A/B/C5 formation successively, and from the output of correspondence output loop, the definition of following IEEE802.17 is handled in this scheduling.
System and method of the present invention is a kind of effective switching system at the RPR technology, this method can merge the multiple business sorting technique, carry out the business classification to the end user, and carry out different processing, thereby provide different service and prices to bring multiple strategy to the user of different brackets at the business of different brackets.
Though class of service sorting technique of the present invention is illustrated in the specific embodiment of the invention and describes; but clearly the present invention is the restriction that is not subjected to this sorting technique; under the condition that does not depart from by the design of the determined technical solution of the present invention of appended claims and scope; those skilled in the art will can take into account many corrections, replacing, variation, substitute and equivalent content, and these contents all should belong to protection scope of the present invention.
Claims (14)
1, a kind of switching system based on grade of service exchange, it comprises that a plurality of RPR equipment are by RPR ring of RPR loop side ports composition, it is characterized in that this switching system also comprises following part: RPR frame processing unit, professional classification processing unit, on encircle crosspoint and scheduling unit;
Described RPR frame processing unit is handled the RPR frame that the RPR loop enters, target MAC (Media Access Control) address according to the RPR frame judges whether it is the following ring business of this website, in this way, then this RPR frame is distributed to different local destination interfaces, as not being, then this RPR frame is sent to primary and less important transmit queue;
Described professional classification processing unit carries out grade of service classification to the Ethernet service that enters from local port;
The described ring crosspoint of going up is selected the output ring according to purpose website shortest path principle, and traffic frame is sent in the service queue of corresponding grade class of this output ring and line up, and waits for and dispatching;
Non-the website business that described scheduling unit enters the RPR loop is the business of described primary and less important transmission queue, and the business in the service queue of the corresponding different brackets class that enters of local port unifies scheduling, and exports from the RPR loop.
2, switching system according to claim 1 is characterized in that, described professional classification processing unit also converts the ethernet frame that enters to the RPR frame.
3, switching system according to claim 2, it is characterized in that, the grade of service sorting technique of described professional classification processing unit is the business based on port, promptly the port numbers of the user-side port that enters according to data flow is carried out the business classification, it is provided with the default service classification configuration item of a port, and the business that enters from this user-side port all is configured to the grade of service that this port default service classification configuration item disposes.
4, switching system according to claim 2, it is characterized in that, the grade of service sorting technique of described professional classification processing unit is based on VLAN ID, if when data enter be the frame of band 802.1q, and VLAN mark wherein is effective, then use this VLAN ID number, otherwise use the scarce VLAN ID of this port to carry out grade of service classification; Simultaneously, being provided with one can be by user configured VLAN ID and class of service mapping table, and described data based this mapping table that enters is configured to the corresponding business grade.
5, switching system according to claim 2, it is characterized in that, the grade of service sorting technique of described professional classification processing unit is based on source/target MAC (Media Access Control) address group, the mapping table of one source/target MAC (Media Access Control) address group and class of service is set, and the data flow that enters user-side port is carried out the business classification according to this mapping table.
6, switching system according to claim 5, it is characterized in that, described source/target MAC (Media Access Control) address group can be that the source and destination MAC Address all is specific, and perhaps source MAC is specific and target MAC (Media Access Control) address is any, and perhaps target MAC (Media Access Control) address is specific and source MAC is any.
7, according to claim 3 or 4 or 5 described switching systems, it is characterized in that, described professional classification processing unit also uses a method for optimizing based on port, it is included in each port the one professional classification mode configuration register based on this port is set, when business when user-side port enters described switching system, described switching system can be inquired about the classification mode configuration register of this port, according to the professional sorting technique that inquires this business is carried out the business classification.
8, a kind of switching method based on switching system as claimed in claim 1, it comprises the steps:
A) described switching system is handled the RPR frame that the RPR loop enters, target MAC (Media Access Control) address according to the RPR frame judges whether it is the following ring business of this website, in this way, then this RPR frame is distributed to different local destination interfaces, as not being, then this RPR frame is sent to primary and less important transmit queue;
B) described switching system carries out grade of service classification to the Ethernet service that enters from local port;
C) described switching system to last ring exchange handle, promptly select the output ring, and traffic frame sent in the service queue of corresponding grade class of this output ring and line up according to purpose website shortest path principle, wait for and dispatching;
D) described switching system comprises that to the processing of scheduling non-the website business that the RPR loop is entered is the described primary business that reaches less important transmission queue, and the business in the service queue of the corresponding different brackets class that enters of local port unifies scheduling, and exports from the RPR loop.
9, switching method according to claim 8 is characterized in that, described professional classification processing unit converts the ethernet frame that enters to the RPR frame.
10, switching method according to claim 9, it is characterized in that, the grade of service sorting technique of described professional classification processing unit is based on the business of port, promptly the port numbers of the user-side port that enters according to data flow is carried out the business classification, it is provided with the default service classification configuration item of a port, and the business that enters from this user-side port all is configured to the grade of service that this port default service classification configuration item disposes.
11, switching method according to claim 9, it is characterized in that, the grade of service sorting technique of described professional classification processing unit is based on VLAN ID, if when data enter be the frame of band 802.1q, and VLAN mark wherein is effective, then use this VLAN ID number, otherwise use the scarce VLAN ID of this port to carry out grade of service classification; Simultaneously, being provided with one can be by user configured VLAN ID and class of service mapping table, and described data based this mapping table that enters is configured to the corresponding business grade.
12, switching method according to claim 9, it is characterized in that, the grade of service sorting technique of described professional classification processing unit is based on source/target MAC (Media Access Control) address group, the mapping table of one source/target MAC (Media Access Control) address group and class of service is set, and the data flow that enters user-side port is carried out the business classification according to this mapping table.
13, switching method according to claim 12, it is characterized in that, described source/target MAC (Media Access Control) address group can be that the source and destination MAC Address all is specific, and perhaps source MAC is specific and target MAC (Media Access Control) address is any, and perhaps target MAC (Media Access Control) address is specific and source MAC is any.
14, according to claim 10 or 11 or 12 described switching methods, it is characterized in that, described professional classification processing unit also uses a method for optimizing based on port, it is included in each port the one professional classification mode configuration register based on this port is set, when business when user-side port enters described switching system, described switching system can be inquired about the classification mode configuration register of this port, according to the professional sorting technique that inquires this business is carried out the business classification.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031401066A CN1299469C (en) | 2003-08-06 | 2003-08-06 | Exchange system basedon business grade exchange and its exchange method |
| PCT/CN2004/000464 WO2005015836A1 (en) | 2003-08-06 | 2004-05-10 | Switching system and switching method based on the switching of service grade |
| RU2006106707/09A RU2354058C2 (en) | 2003-08-06 | 2004-05-10 | Switching system and switching method on basis of service class switching |
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| CNB031401066A CN1299469C (en) | 2003-08-06 | 2003-08-06 | Exchange system basedon business grade exchange and its exchange method |
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| CN1299469C CN1299469C (en) | 2007-02-07 |
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| CN1165184C (en) * | 2001-05-08 | 2004-09-01 | 华为技术有限公司 | Dispatching method for comprehensive router service |
| ITMI20011849A1 (en) * | 2001-09-03 | 2003-03-03 | Cit Alcatel | METHOD TO EXECUTE AN OAM FUNCTION BY EXCHANGING REQUEST-ANSWER PACKAGES BETWEEN STATIONS OF A RPR NETWORK, AND RELATED STRUTS |
| ITMI20012122A1 (en) * | 2001-10-15 | 2003-04-15 | Cit Alcatel | TRANSPARENT LAN-TO-LAN CONNECTION BETWEEN TWO CUSTOMER LOCATIONS THROUGH A DATA TRANSPORT RPR NETWORK |
| CN100388700C (en) * | 2002-10-18 | 2008-05-14 | 华为技术有限公司 | Method for transmitting digital business on synchronous digital network |
-
2003
- 2003-08-06 CN CNB031401066A patent/CN1299469C/en not_active Expired - Fee Related
-
2004
- 2004-05-10 RU RU2006106707/09A patent/RU2354058C2/en not_active IP Right Cessation
- 2004-05-10 WO PCT/CN2004/000464 patent/WO2005015836A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006099786A1 (en) * | 2005-03-25 | 2006-09-28 | Hangzhou H3C Technologies Co., Ltd. | A method for implementing on-ring process, off-ring process and data forwarding in resilience packet data ringnet and a network device thereof |
| CN101366243B (en) * | 2006-01-06 | 2012-02-08 | 日本电气株式会社 | Communication system, communication method, node, and node program |
| US8189471B2 (en) | 2006-01-18 | 2012-05-29 | Huawei Technologies Co., Ltd. | Method, system and optical network terminal for mapping a service flow into a service transmission channel |
| CN101257487B (en) * | 2006-04-25 | 2011-07-20 | 华为技术有限公司 | Method for mapping service stream onto service transmission channel as well as optical network terminal |
| CN101060392B (en) * | 2006-09-07 | 2010-12-08 | 华为技术有限公司 | A transmission service data dispatching multiplex method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2006106707A (en) | 2006-08-10 |
| WO2005015836A1 (en) | 2005-02-17 |
| RU2354058C2 (en) | 2009-04-27 |
| CN1299469C (en) | 2007-02-07 |
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