CN101989955B - Realization method and system of remote loopback - Google Patents
Realization method and system of remote loopback Download PDFInfo
- Publication number
- CN101989955B CN101989955B CN201010548491.5A CN201010548491A CN101989955B CN 101989955 B CN101989955 B CN 101989955B CN 201010548491 A CN201010548491 A CN 201010548491A CN 101989955 B CN101989955 B CN 101989955B
- Authority
- CN
- China
- Prior art keywords
- loopback
- test packet
- port
- dte
- switch
- 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.)
- Active
Links
Landscapes
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses realization method and system of remote loopback, wherein the realization method of the remote loopback comprises the following steps that: an exchanger receives the test message of controlled end DTE (Data Terminal Equipment) loopback; and the exchanger directly transfers the test message of the loopback to main control end DTE. The invention realizes the far-end loopback test of the Ethernet OAM (Operation and Maintenance) when the exchanger exists between the DTE at both ends of links of 802.3ah protocol, and ensures the successful realization of far-end loopback test when the exchanger exists between the main control end DTE and the controlled end DTE.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of implementation method and system of remote loopback.
Background technology
Under the background that carrier ethernet concept proposes, first kilometer of Ethernet working group (Ethernet in the FirstMile Task Force) of IEEE completes the formulation work of IEEE 802.3ah standard.Its main target is exactly formulate the physical layer of a series of Ethernet (PHYSICAL LAYER) and data link layer (DATA LINK LAYER) standard, promotes that this communication medium of Ethernet plays the advantage of its each side in access network is disposed.Ethernet OAM (Operations in IEEE 802.3ah standard, Administration and Maintenance, Operations, Administration and Maintenance) part provides the mechanism of a kind of effective link monitoring and fault location, filled up the blank of OAM at ethernet data link layer.
Remote loopback function is the important component part of Ethernet OAM.It provide a kind of effective mechanism of locating link failure and monitoring link-quality.The concept that Ethernet OAM part in IEEE 802.3ah standard describes remote loopback and realize Ethernet OAM agreement link layer two ends DTE between set up, run, stop the method for remote loopback, main contents are as follows:
EFM (Ethernetinthe FirstMile) agreement adopts 802.3 slow frames.Wherein, frame type territory is fixed as 88-09, is the slow frame of Ethernet; Subtype field is fixed as 0x03, is Ethernet OAM frame.Herein, any other 802.3 ethernet frames are all called non-Ethernet OAM frame.
(1) definition of remote loopback: remote loopback comprises main control end DTE (Data Terminal Equipment, data terminal equipment) and controlled end DTE.Main control end DTE initiates and controls foundation and the stopping of remote loopback.During remote loopback, any non-Ethernet OAM frame that main control end DTE sends, is all ended in main control end DTE by controlled end DTE loopback.Process as shown in Figure 1.In Fig. 1, left side is the main control end DTE being in remote loopback, and all non-Ethernet OAM frames are mail to opposite end; Right-hand member is the controlled end DTE being in remote loopback, by all non-Ethernet OAM frame loopbacks received; Main control end DTE by all receive abandoned by the non-Ethernet OAM frame of controlled end loopback.
(2) foundation of remote loopback and stopping: after main control end DTE and controlled end DTE establishes remote loopback state, main control end DTE sends test packet (namely above-mentioned non-Ethernet OAM frame), controlled end needs these test packets at MAC (Media Access Control, medium education) address sends to main control end DTE as former state when not making an amendment, and added up by main control end DTE.
But, when there is switch in the middle of two DTE (i.e. main control end DTE and controlled end DTE), following problem will be caused: because the test packet from main control end DTE is not changed source by controlled end DTE, target MAC (Media Access Control) address ground former state loopback, therefore the switch between two DTE can find that the target MAC (Media Access Control) address of the loopback test message from controlled end DTE received remains the MAC Address of controlled end DTE, namely, destination from the loopback test message of controlled end DTE remains controlled end DTE, like this, this switch can abandon the loopback that controlled end DTE returns mistakenly to the test packet of main control end DTE, and be not transmitted to main control end DTE, thus cause the test crash of remote loopback.
Summary of the invention
Main purpose of the present invention is the implementation method and the system that provide a kind of remote loopback, at least to solve the problem.
According to an aspect of the present invention, provide a kind of implementation method of remote loopback, comprising: switch receives the test packet of controlled end DTE loopback; The test packet of loopback is directly forwarded to main control end DTE by switch.
According to a further aspect in the invention, what provide a kind of remote loopback realizes system, comprise: main control end DTE, switch and controlled end DTE, wherein: the test packet of loopback for receiving the test packet of controlled end DTE loopback, and is directly forwarded to main control end DTE by switch.
Pass through the present invention, the test packet of controlled end DTE loopback directly can be transmitted to main control end DTE by the switch between main control end DTE and controlled end DTE, and can not mistakenly controlled end DTE loopback be abandoned to the test packet of main control end DTE, namely the test packet of controlled end DTE loopback can pass through switch, thus avoid the test crash of remote loopback, the remote loopback test of Ethernet OAM during switch is there is between the both link ends DTE achieving 802.3ah agreement, ensure that the successful realization of remote loopback test when to there is switch between main control end DTE and controlled end DTE.The present invention breaches the restriction of 802.3ah agreement to switch, makes no longer to be subject to 802.3ah agreement restriction effect in comparatively complicated network element design, improves the flexibility of network element architecture design scheme.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram of the remote loopback according to correlation technique;
Fig. 2 is the structural representation of the system that realizes of remote loopback according to the embodiment of the present invention;
Fig. 3 is the structural representation of the system that realizes of remote loopback according to the preferred embodiment of the invention;
Fig. 4 is the flow chart of the implementation method of remote loopback according to the embodiment of the present invention;
Fig. 5 is according to the A of the first preferred embodiment of the invention schematic diagram as the remote loopback of main control end DTE;
Fig. 6 is according to the A of the first preferred embodiment of the invention schematic diagram as the remote loopback of controlled end DTE;
Fig. 7 is the structural representation of BTS and BSC in the BSS according to second preferred embodiment of the invention;
Fig. 8 is according to the BTS of the second preferred embodiment of the invention schematic diagram as remote loopback during main control end DTE;
Fig. 9 is according to the BTS of the second preferred embodiment of the invention schematic diagram as remote loopback during controlled end DTE.
Embodiment
Hereinafter also describe the present invention in detail with reference to accompanying drawing in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
Fig. 2 is the structural representation of the system that realizes of remote loopback according to the embodiment of the present invention, comprise: main control end DTE 10, switch 20 and controlled end DTE 30, wherein: the test packet of the loopback of reception for receiving the test packet of controlled end DTE 30 loopback, and is directly forwarded to main control end DTE 10 by switch 20.
In the present embodiment, the test packet of controlled end DTE loopback directly can be transmitted to main control end DTE by the switch between main control end DTE and controlled end DTE, and can not mistakenly controlled end DTE loopback be abandoned to the test packet of main control end DTE, namely the test packet of controlled end DTE loopback can pass through switch, thus avoid the test crash of remote loopback, the remote loopback test of Ethernet OAM during switch is there is between the both link ends DTE achieving 802.3ah agreement, ensure that the successful realization of remote loopback test when to there is switch between main control end DTE and controlled end DTE.The present embodiment breaches the restriction of 802.3ah agreement to switch, makes no longer to be subject to 802.3ah agreement restriction effect in comparatively complicated network element design, improves the flexibility of network element architecture design scheme.
In actual applications, the switch in above-described embodiment can be exchange chip etc.
The test packet of the loopback of reception directly can be forwarded to main control end DTE to realize switch, namely, the test packet of controlled end DTE loopback can pass through switch, in actual applications, can arrange switch 20 in advance, such as, the normal message of the second port direction that the first port be connected with main control end DTE 10 by switch 20 is connected to switch 20 with controlled end DTE 30 exchanges and blocks, Ingress (inbound port) message of the second port is set without the need to source, the judgement of target MAC (Media Access Control) address and directly send to the first port, and keep the first port to exchange to the normal message of the second port direction.Like this, in this is preferably implemented, as shown in Figure 3, switch 20 can comprise: arrange module 202, be connected to first port 206 of main control end DTE 10, be connected to second port 204 of controlled end DTE 30, for blocking the message switching in the second port 204 to the first port 206 direction in advance, and close the source MAC of message and the judgement of target MAC (Media Access Control) address that switch 20 receives the second port 204.
Thus, after main control end DTE 10 sends test packet, switch 20 normally can carry out message switching to this test packet, so that this test packet is sent to controlled end DTE 30, like this, first port 206 of switch 20 can receive this test packet from main control end DTE 10, and in switch 20, also need to comprise processing module 208, this processing module 208 is for judging that the source MAC of this test packet is the MAC Address of main control end DTE 10, and target MAC (Media Access Control) address is the MAC Address of controlled end DTE 30, and this test packet is sent to second port 204 corresponding with the MAC Address of controlled end DTE 30, then this test packet just can be sent to controlled end DTE 30 by the second port 204.Finally, the test packet received just can be carried out loopback as former state by controlled end DTE30 after receiving the test packet that switch 20 sent by the second port 204.
By the setting to switch 20 in above-mentioned preferred enforcement, second port 204 of switch 20 is after the test packet receiving controlled end DTE 30 loopback, processing module 208 is not also for judging source MAC and the target MAC (Media Access Control) address of the test packet of this loopback, and directly the test packet of this loopback is sent to the first port 206, thus the first port 206 is also for being sent to main control end DTE 10 by the test packet of this loopback.Like this, the message just achieving controlled end DTE loopback directly can pass through switch and arrive main control end DTE.
In order to not affect other business, after remote loopback completes, also need switch 20 to be returned to the configuration of normal network exchange.Therefore, module 202 is set also for after the test packet of loopback being directly forwarded to main control end DTE10 at switch 20, recover the message switching in the second port 204 to the first port 206 direction, and reopen the source MAC of message and the judgement of target MAC (Media Access Control) address that switch 20 receives the second port 204.
Realize system in conjunction with remote loopback as shown in Figures 2 and 3, according to the flow chart of the implementation method of the remote loopback of the embodiment of the present invention as shown in Figure 4, comprise the following steps:
Step S402, switch receives the test packet of controlled end data terminal equipment DTE loopback;
Step S404, the test packet of the loopback received directly is forwarded to main control end DTE by switch.
In the present embodiment, the test packet of controlled end DTE loopback directly can be transmitted to main control end DTE by the switch between main control end DTE and controlled end DTE, and can not mistakenly controlled end DTE loopback be abandoned to the test packet of main control end DTE, namely the test packet of controlled end DTE loopback can pass through switch, thus avoid the test crash of remote loopback, the remote loopback test of Ethernet OAM during switch is there is between the both link ends DTE achieving 802.3ah agreement, ensure that the successful realization of remote loopback test when to there is switch between main control end DTE and controlled end DTE.The present embodiment breaches the restriction of 802.3ah agreement to switch, makes no longer to be subject to 802.3ah agreement restriction effect in comparatively complicated network element design, improves the flexibility of network element architecture design scheme.
In actual applications, the switch in above-described embodiment can be exchange chip etc.
The test packet of the loopback of reception directly can be forwarded to main control end DTE to realize switch, namely, the test packet of controlled end DTE loopback can pass through switch, in actual applications, can arrange switch in advance, like this, the message switching of the second port to the first port direction of switch of switch can also be blocked in advance in above-mentioned method, and close the source MAC of switch to the message of the second port accepts and the judgement of target MAC (Media Access Control) address, wherein, first port of switch is connected to main control end DTE, second port of switch is connected to controlled end DTE.
Such as, in system as shown in Figure 5, A is main control end DTE, B be controlled end DTE, SW is switch.When preparing to set up remote loopback, first following steps can be performed:
Step 1, in switch, blocks the normal exchange of ab mouth to a mouth direction;
Step 2, arranging SW to ab mouth Ingress (inbound port) message without the need to carrying out the judgement of source, object MAC, directly sending to a mouth;
Step 3, keeps a mouth to the normal exchange of ab mouth direction message.
In system as shown in Figure 6, A is controlled end DTE, B be main control end DTE, SW is switch.When preparing to set up remote loopback, first following steps can be performed:
Step 1, in switch, blocks the normal exchange of a mouth to ab mouth direction;
Step 2, arranging SW to a mouth Egress (outbound port) message without the need to carrying out the judgement of source, object MAC, directly sending to ab mouth;
Step 3, keeps ab mouth to the normal exchange of a mouth direction message.
In actual applications, before step S402, main control end DTE needs the test packet sent to be sent to controlled end DTE by switch, namely, composition graphs 2 and Fig. 3, after first port of switch receives the test packet from main control end DTE, switch can judge source MAC and the target MAC (Media Access Control) address of this test packet, finds its source MAC to be the MAC Address of main control end DTE and target MAC (Media Access Control) address be the MAC Address of controlled end DTE; Then, this test packet just can be sent to controlled end DTE from the second port corresponding with the MAC Address of controlled end DTE by switch.After controlled end DTE receives this test packet, the test packet loopback as former state that will will receive.
After the setting carrying out switch, in step S402, the second port of switch can receive the test packet of controlled end DTE loopback; Then in step S404, switch can not judge source MAC and the target MAC (Media Access Control) address of the test packet of the loopback received, but directly the test packet of this loopback is sent to main control end DTE by the first port.Thus make the test packet of loopback directly can penetrate switch arrival main control end DTE.
In order to not affect other business, after step S404, namely after remote loopback completes, also need switch to be returned to the configuration of normal network exchange, namely recover the message switching of the second port to the first port direction of switch, and reopen the source of switch to the message of the second port accepts, the judgement of target MAC (Media Access Control) address.
Such as, in system as shown in Figure 5, when after the completing of remote loopback, need to recover ab mouth and exchange to the normal message of a mouth, reopen switch and the message MAC Address of ab mouth Intgress is judged.In system as shown in Figure 6, after remote loopback completes, also need recovery a mouth to exchange to the normal message of ab mouth, reopen the message MAC Address inspection of switch to a mouth Egress.
Be example with the BSS (Base Station System, base station system) as shown in Figure 7 in mobile communication system below, introduce the concrete implementing procedure of the implementation method of the remote loopback of the preferred embodiment of the present invention.
As can be seen from Figure 7, as BTS (the Base Station Transceiver in BSS, base station transceiver) and BSC (BaseStation Controller, base station controller) between Abis interface when walking the ethernet link of packet data package, if in the Ethernet OAM function that physical layer and the data link layer support 802.3ah of BTS and BSC protocol stack separately define, then remote loopback is exactly a function that must realize.Following 2 kinds of situations may be there are:
The first situation, as shown in Figure 8, using BTS as main control end DTE, BSC as controlled end DTE.Implementation method according to the remote loopback of the embodiment of the present invention comprises the following steps:
Step 1, isolates the abis mouth of BTS to a mouth direction vlan, thus just prevents abis mouth normally to exchange to the message of a mouth;
Step 2, arranges abis mouth Ingress message mirror on a mouth, so just can ensure that abis mouth judges without the need to exchange chip to the message of a mouth, directly sends to a mouth;
Step 3, arranges a mouth to abis mouth direction in a vlan, thus just allows a mouth to the normal exchange of ab mouth direction message;
Step 4, BTS sends test packet;
Step 5, a mouth of SW receives this test packet, after judging, is sent to ab mouth, and is sent to BSC by ab mouth the source of this test packet, target MAC (Media Access Control) address;
Step 6, the test packet received is carried out loopback by BSC as former state;
Step 7, after the ab mouth of SW receives the test packet of loopback, can not carry out the judgement of source, target MAC (Media Access Control) address, but directly send it to a mouth to the test packet of this loopback, and is sent to BTS and adds up;
Step 8, after completing remote loopback test, mirror image should be arranged cancellation by BTS, and replys Vlan (VLAN) configuration of normal condition, thus recovers the normal of internal network.
The second situation, as shown in Figure 9, using BTS as controlled end DTE, BSC is as main control end DTE.Implementation method according to the remote loopback of the embodiment of the present invention comprises the following steps:
Step 1, a mouth arranging BTS is isolated to abis mouth direction vlan, also just prevents a mouth normally to exchange to the message of abis mouth;
Step 2, arranges a mouth Outgress message mirror on abis mouth, so just can ensure that a mouth judges without the need to exchange chip to the message of abis mouth, directly sends to abis mouth;
Step 3, arranges abis mouth and belongs to together in a vlan to a mouth direction, also just allows abis mouth to the normal exchange of a mouth direction message;
Step 4, BSC sends test packet;
Step 5, the ab mouth of SW receives this test packet, after judging, is sent to a mouth, and is sent to BSC by a mouth the source of this test packet, target MAC (Media Access Control) address;
Step 6, the test packet received is carried out loopback by BTS as former state;
Step 7, after a mouth of SW receives the test packet of loopback, can not carry out the judgement of source, target MAC (Media Access Control) address, but directly send it to ab mouth to the test packet of this loopback, and is sent to BSC and adds up;
Step 8, after completing remote loopback test, mirror image should be arranged cancellation by BSC, and replys the Vlan configuration of normal condition, thus recovers the normal of internal network.
From above description, can find out, present invention achieves following technique effect: the test packet of controlled end DTE loopback directly can be transmitted to main control end DTE by the switch between main control end DTE and controlled end DTE, and can not mistakenly controlled end DTE loopback be abandoned to the test packet of main control end DTE, namely the test packet of controlled end DTE loopback can pass through switch, thus avoid the test crash of remote loopback, the remote loopback test of Ethernet OAM during switch is there is between the both link ends DTE achieving 802.3ah agreement, ensure that the successful realization of remote loopback test when to there is switch between main control end DTE and controlled end DTE.The present invention breaches the restriction of 802.3ah agreement to switch, makes no longer to be subject to 802.3ah agreement restriction effect in comparatively complicated network element design, improves the flexibility of network element architecture design scheme.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. an implementation method for remote loopback, is characterized in that, comprising:
Switch receives the test packet of controlled end data terminal equipment DTE loopback;
The test packet of described loopback is directly forwarded to main control end DTE by described switch; Described method also comprises: the message switching of the second port to the first port direction of described switch blocking described switch in advance, and close the source MAC address of described switch to the message of described second port accepts and the judgement of target MAC (Media Access Control) address, wherein, described first port is connected to described main control end DTE, and described second port is connected to described controlled end DTE.
2. method according to claim 1, is characterized in that, before receiving the test packet of controlled end DTE loopback, also comprises at described switch:
Described first port accepts of described switch is from the test packet of described main control end DTE;
Described switch judges that the source MAC of described test packet is the MAC Address of described main control end DTE, and target MAC (Media Access Control) address is the MAC Address of described controlled end DTE;
Described test packet is sent to described controlled end DTE from described second port corresponding with the MAC Address of described controlled end DTE by described switch;
The described test packet loopback that described controlled end DTE will receive.
3. method according to claim 1 and 2, is characterized in that,
The test packet that described switch receives controlled end DTE loopback comprises: the test packet of controlled end DTE loopback described in described second port accepts of described switch;
The test packet of described loopback is directly forwarded to main control end DTE and comprises by described switch: described switch does not judge source MAC and the target MAC (Media Access Control) address of the test packet of described loopback, and directly the test packet of described loopback is sent to described main control end DTE by described first port.
4. method according to claim 1, is characterized in that, after the test packet of described loopback is directly forwarded to main control end DTE by described switch, also comprises:
Recover the message switching of described second port to described first port direction, and reopen described switch to the source MAC of message of described second port accepts and the judgement of target MAC (Media Access Control) address.
5. remote loopback realize a system, it is characterized in that, comprising: main control end data terminal equipment DTE, switch and controlled end DTE, wherein:
The test packet of described loopback for receiving the test packet of described controlled end DTE loopback, and is directly forwarded to described main control end DTE by described switch; Wherein, described switch comprises and arranges module, is connected to first port of described main control end DTE and is connected to second port of described controlled end DTE, wherein:
The described module that arranges for blocking the message switching of described second port to described first port direction in advance, and closes the source MAC address of described switch to the message of described second port accepts and the judgement of target MAC (Media Access Control) address.
6. system according to claim 5, is characterized in that, described switch also comprises processing module, wherein:
Described first port is for receiving the test packet from described main control end DTE;
Described processing module is for judging that the source MAC of described test packet is the MAC Address of described main control end DTE, and target MAC (Media Access Control) address is the MAC Address of described controlled end DTE, and described test packet is sent to described second port corresponding with the MAC Address of described controlled end DTE;
Described second port is used for described test packet to be sent to described controlled end DTE;
Described controlled end DTE is used for the described test packet loopback that will receive.
7. the system according to claim 5 or 6, is characterized in that,
Described second port is also for receiving the test packet of described controlled end DTE loopback;
The test packet of described loopback also for not judging source MAC and the target MAC (Media Access Control) address of the test packet of described loopback, and is directly sent to described first port by described processing module;
Described first port is also for being sent to described main control end DTE by the test packet of described loopback.
8. system according to claim 5, it is characterized in that, described module is set also for after the test packet of described loopback being directly forwarded to main control end DTE at described switch, recover the message switching of described second port to described first port direction, and reopen described switch to the source MAC of message of described second port accepts and the judgement of target MAC (Media Access Control) address.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010548491.5A CN101989955B (en) | 2010-11-17 | 2010-11-17 | Realization method and system of remote loopback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010548491.5A CN101989955B (en) | 2010-11-17 | 2010-11-17 | Realization method and system of remote loopback |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101989955A CN101989955A (en) | 2011-03-23 |
| CN101989955B true CN101989955B (en) | 2015-04-01 |
Family
ID=43746306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010548491.5A Active CN101989955B (en) | 2010-11-17 | 2010-11-17 | Realization method and system of remote loopback |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101989955B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102195832A (en) * | 2011-05-16 | 2011-09-21 | 华为技术有限公司 | Loopback testing method, device and system |
| CN110602001B (en) * | 2019-09-03 | 2021-11-09 | 北京东土军悦科技有限公司 | Far-end loopback testing device and method |
| CN114978868B (en) * | 2022-07-01 | 2023-04-25 | 杭州迪普科技股份有限公司 | Method and device for accelerating chip function abnormality based on OAM loop self-checking network message |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101267363A (en) * | 2008-04-24 | 2008-09-17 | 杭州华三通信技术有限公司 | Loop testing method, system and device |
| CN101330410A (en) * | 2008-07-17 | 2008-12-24 | 华为技术有限公司 | Far-end loopback test method, system and exchange |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6937594B2 (en) * | 2001-04-27 | 2005-08-30 | Lucent Technologies Inc. | Loop back testing for multi-protocol hybrid networks |
| CN100433723C (en) * | 2006-03-14 | 2008-11-12 | 杭州华三通信技术有限公司 | Broadcasting message crossing virtual LAN method in virtual LAN |
| CN101043387A (en) * | 2007-03-22 | 2007-09-26 | 杭州华三通信技术有限公司 | Remote mirror-image realization process, remote monitoring aids and system for realizing remote mirror-image |
| CN101873236B (en) * | 2010-06-13 | 2014-04-30 | 中兴通讯股份有限公司 | Method and system for testing message |
-
2010
- 2010-11-17 CN CN201010548491.5A patent/CN101989955B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101267363A (en) * | 2008-04-24 | 2008-09-17 | 杭州华三通信技术有限公司 | Loop testing method, system and device |
| CN101330410A (en) * | 2008-07-17 | 2008-12-24 | 华为技术有限公司 | Far-end loopback test method, system and exchange |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101989955A (en) | 2011-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2449478C (en) | Method and system for mobile ip nodes in heterogeneous networks | |
| EP1507353B1 (en) | Transmission/reception of data flows with different QoS requirements | |
| KR100498347B1 (en) | Data-processing method for supporting amr codec | |
| EP1518352B1 (en) | Redundancy and load balancing in a telecommunication unit and system | |
| ES2390361T3 (en) | Radio communications system, access method via radio, access point and gateway | |
| EP3554008B1 (en) | Method, network device, and network system for processing dcn message | |
| JP2002111732A (en) | Vpn system and vpn setting method | |
| CN108702317A (en) | Industrialized communication system, the method and wireless receiving station for its operation that can redundantly run | |
| CN101989955B (en) | Realization method and system of remote loopback | |
| CN103457851B (en) | PTN (packet transfer network) organization architecture and service bearing method thereof | |
| EP2061183B1 (en) | Method and system for sending and processing multimedia broadcast multicast service | |
| US20060034203A1 (en) | Mobile communication system and service control device | |
| CN101743723A (en) | System and method for an adaptive access point mode | |
| EP2600569A1 (en) | Method, apparatus and system for processing a tunnel packet | |
| CN104618468B (en) | The transmission method and equipment of a kind of business datum message | |
| CN116193633A (en) | Wireless local area network data transmission system | |
| CN106059885A (en) | Method and system for processing CAPWAP message by wireless controller | |
| CN108337162B (en) | System and method for supporting dual-homing protection | |
| CN103391251A (en) | Method and device for reducing redundant flow in PBB (provider backbone bridge) network | |
| CN101958839A (en) | Method and system for establishing operation maintenance channel | |
| CN111355561A (en) | Data retransmission indicating and processing method and device | |
| CN103684831A (en) | Method, device and system for protecting L2TP network | |
| CN102612099B (en) | The reconstruction method of service bearer and device | |
| CN107835126B (en) | Message forwarding method and system | |
| JP3788125B2 (en) | Packet transmission / reception method and apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |