CN104253700A - Automatic reconnection method, device and system in CDN system after downtime - Google Patents
Automatic reconnection method, device and system in CDN system after downtime Download PDFInfo
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- CN104253700A CN104253700A CN201310257066.4A CN201310257066A CN104253700A CN 104253700 A CN104253700 A CN 104253700A CN 201310257066 A CN201310257066 A CN 201310257066A CN 104253700 A CN104253700 A CN 104253700A
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Abstract
The invention discloses an automatic reconnection method, a device and a system in a CDN system after downtime. The method comprises steps that: a media service control unit determines that a first resource single board managed by the media service control unit is in fault, the first resource single board is made to be off line, all channels normally operated on the first resource single board are re-constructed on a second resource single board, a preset error code is sent to a set top box which acquires service from the first resource single board, the media service control unit receives a play request re-started by the set top box, and the set top box is connected with the second resource single board. Through the automatic reconnection method, the set top box can further continue providing service for users at other resource single board.
Description
Technical field
The present invention relates to field of mobile communication, particularly relate in a kind of content distributing network (Content Delivery Network, referred to as CDN) system Auto-reconnect method, Apparatus and system after machine of delaying.
Background technology
In the prior art, general-purpose media server in CDN system uses distribution of media unit veneer to create channel and distribution code stream, and be Set Top Box (Set Top Box, referred to as STB) direct broadcast service is provided, in traditional general-purpose media server, distribution of media unit veneer is active-standby mode, the channel creation of normal condition is on primary media Dispatching Unit veneer, this primary media Dispatching Unit veneer provides direct broadcast service for user, if primary media Dispatching Unit veneer breaks down in running, then standby board can switch to primary at once, in this process, channel can not be rebuild, user plays unaffected, watch the change of live user's impression less than this process.
New general-purpose media server, in order to reduce costs, makes individual node can the more live user of load, and achieve distribution of media unit non-active and standby, namely distribution of media unit is all that single veneer runs, and is no longer active-standby mode; In this case, if distribution of media unit veneer breaks down, then channel can be rebuild, Set Top Box is play unsuccessfully, this in the mode reduced costs to exchange the poor impression of user for, can not be approved by client, in order to address this problem, need a new mechanism policy.In addition, also there is similar problem in another the resource board media store retransmission unit veneer in general-purpose media server.
Summary of the invention
In view of the above problems, the present invention is proposed to provide a kind of overcoming in the problems referred to above or the CDN system that solves the problem at least in part Auto-reconnect method, Apparatus and system after machine of delaying.
The invention provides in a kind of CDN system Auto-reconnect method after machine of delaying, comprise: media services control unit determines that the first resource veneer that it manages breaks down, make first resource veneer off-line and all channels on first resource veneer are rebuild on the normal Secondary resource veneer run, sending to the Set Top Box obtaining service from first resource veneer the error code pre-set; The playing request that media services control unit receiving set up box is initiated again, is connected to Secondary resource veneer by Set Top Box.
Preferably, media services control unit is determined that first resource veneer that it manages breaks down and is specifically comprised: media services control unit does not receive the heartbeat report that first resource veneer sends in the given time, then determine that first resource veneer breaks down.
Preferably, after media services control unit sends to the Set Top Box obtaining service from first resource veneer the error code pre-set, said method comprises further: Set Top Box is after receiving error code, off-line request is initiated to media services control unit, and after the off-line acknowledge message receiving the transmission of media services control unit, again initiate the playing request to corresponding contents.
Preferably, Set Top Box, after receiving error code, is initiated off-line request to media services control unit and is specifically comprised: Set Top Box judges whether the number of times receiving error code exceedes predetermined threshold, if the judgment is Yes, then replys directly to user and plays unsuccessfully; Otherwise, when providing order program service for user, record the time point of current broadcasting, and initiate off-line request to media services control unit, when providing direct broadcast service for user, initiate off-line request directly to media services control unit.
Preferably, said method also comprises: Set Top Box receive user send exit playing request, predetermined threshold is re-set as 0, and response exit playing request.
Preferably, the playing request that media services control unit receiving set up box is initiated again, Set Top Box is connected to Secondary resource veneer specifically to comprise: the playing request that media services control unit receiving set up box is initiated again, the information be connected with Secondary resource veneer is sent to Set Top Box; Media play link set up by Set Top Box and Secondary resource veneer, if provide order program service for user, then the time point of record sent to Secondary resource veneer, and obtains code stream from Secondary resource veneer, proceeds to play from time point.
Present invention also offers a kind of media services control unit, comprise: rebuild module, for determining that the first resource veneer that it manages breaks down, making first resource veneer off-line and all channels on first resource veneer are rebuild on the normal Secondary resource veneer run; Sending module, for sending to the Set Top Box obtaining service from first resource veneer the error code pre-set; Link block, for the playing request that receiving set up box is initiated again, is connected to Secondary resource veneer by Set Top Box.
Preferably, rebuild module specifically for: do not receive in the given time first resource veneer send heartbeat report, then determine that first resource veneer breaks down.
Preferably, link block specifically for: the playing request that receiving set up box is initiated again, is sent to Set Top Box by the information be connected with Secondary resource veneer.
Present invention also offers a kind of content distributing network CDN system, comprise above-mentioned media services control unit, also comprise: Set Top Box; Set Top Box is used for: after the error code receiving the transmission of media services control unit, off-line request is initiated to media services control unit, and after the off-line acknowledge message receiving the transmission of media services control unit, again the playing request to corresponding contents is initiated, and connect with Secondary resource veneer, obtain service from Secondary resource veneer.
Preferably, Set Top Box specifically for: judge whether the number of times receiving error code exceedes predetermined threshold, if the judgment is Yes, then replys directly to user and plays unsuccessfully; Otherwise, when providing order program service for user, record the time point of current broadcasting, and initiate off-line request to media services control unit, when providing direct broadcast service for user, initiate off-line request directly to media services control unit.
Preferably, Set Top Box also for: receive user send exit playing request, predetermined threshold is re-set as 0, and response exit playing request.
Preferably, Set Top Box specifically for: set up media play link with Secondary resource veneer, if provide order program service for user, then the time point of record sent to Secondary resource veneer, and obtain code stream from Secondary resource veneer, proceed to play from time point.
Beneficial effect of the present invention is as follows:
By improving in prior art the mechanism judging resource veneer off-line, improve the mechanism that channel is rebuild, and the flow process reconnected is added in Set Top Box side, solve resource veneer in prior art and break down the failed problem of rear Set Top Box broadcasting, Set Top Box is continued on other resource veneers of this node as user provides service.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of specification, and can become apparent, below especially exemplified by the specific embodiment of the present invention to allow above and other objects of the present invention, feature and advantage.
Accompanying drawing explanation
By reading hereafter detailed description of the preferred embodiment, various other advantage and benefit will become cheer and bright for those of ordinary skill in the art.Accompanying drawing only for illustrating the object of preferred implementation, and does not think limitation of the present invention.And in whole accompanying drawing, represent identical parts by identical reference symbol.In the accompanying drawings:
Fig. 1 is the flow chart of Auto-reconnect method after machine of delaying in the CDN system of the embodiment of the present invention;
Fig. 2 is Auto-reconnect method signaling process figure after machine of delaying in the CDN system of the embodiment of the present invention;
Fig. 3 is the detail flowchart of Auto-reconnect method after machine of delaying in the CDN system of the embodiment of the present invention;
Fig. 4 is the STB side process chart of the embodiment of the present invention;
Fig. 5 is the structural representation of the media services control unit of the embodiment of the present invention;
Fig. 6 is the structural representation of the CDN system of the embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings exemplary embodiment of the present disclosure is described in more detail.Although show exemplary embodiment of the present disclosure in accompanying drawing, however should be appreciated that can realize the disclosure in a variety of manners and not should limit by the embodiment set forth here.On the contrary, provide these embodiments to be in order to more thoroughly the disclosure can be understood, and complete for the scope of the present disclosure can be conveyed to those skilled in the art.
The failed problem of rear Set Top Box broadcasting is broken down in order to solve resource veneer in prior art, the invention provides in a kind of CDN system Auto-reconnect method after machine of delaying, Apparatus and system: after resource veneer A breaks down, the media services control unit of its ownership can perceive this single board state extremely within 2S, in 1S, the channel on this resource veneer A veneer is completed reconstruction on other states normal resource board B veneer, and issue Set Top Box error code appointed simultaneously, automatically reconnection requests can be initiated after Set Top Box receives this error code, Set Top Box is continued in other resource board B of this node as user provides service.Below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, do not limit the present invention.
Embodiment of the method
According to embodiments of the invention, provide in a kind of CDN system Auto-reconnect method after machine of delaying, Fig. 1 is the flow chart of Auto-reconnect method after machine of delaying in the CDN system of the embodiment of the present invention, as shown in Figure 1, following process is comprised according to Auto-reconnect method after machine of delaying in the CDN system of the embodiment of the present invention:
Step 101, media services control unit (MSCU) determines that the first resource veneer that it manages breaks down, make first resource veneer off-line and all channels on first resource veneer are rebuild on the normal Secondary resource veneer run, sending to the Set Top Box obtaining service from first resource veneer the error code pre-set;
It should be noted that, in embodiments of the present invention, above-mentioned resource veneer can comprise: distribution of media unit veneer and media store retransmission unit veneer.
Preferably, media services control unit does not receive the heartbeat report that first resource veneer sends in the given time, then determine that first resource veneer breaks down.
In actual applications, in order to improve the use health check-up of user, preferably, heartbeat between resource veneer and media services control unit is improved to every 300ms once, when 6 heartbeats failure, media services control unit is judged to be this resource veneer off-line, that is, if media services control unit can not receive the heartbeat that resource veneer sends within 1.8S, just think that this resource veneer can not continue as user again and provide service; At this moment, media services control unit can travel through all users served on this resource veneer, replys ANNOUNCE message (above-mentioned error code) to these users; Meanwhile, media services control unit can be rebuild the channel on this resource veneer, and the density domination rebuilding channel rebuilds 50 channels at every 500ms, guarantees that the channel on resource veneer can have been rebuild substantially in 1S like this.
In a step 101, after media services control unit sends to the Set Top Box obtaining service from first resource veneer the error code pre-set, Set Top Box is after receiving error code, off-line request is initiated to media services control unit, and after the off-line acknowledge message receiving the transmission of media services control unit, again initiate the playing request to corresponding contents.
Particularly, Set Top Box judges whether the number of times receiving error code exceedes predetermined threshold, if the judgment is Yes, then replys directly to user and plays unsuccessfully; Otherwise, when providing order program service for user, record the time point of current broadcasting, and initiate off-line request to media services control unit, when providing direct broadcast service for user, initiate off-line request directly to media services control unit.
Set Top Box receive user send exit playing request time, need predetermined threshold to be re-set as 0, and response exit playing request.
Preferably, in actual applications, Set Top Box can increase a counter, and this counter is maximum is the above-mentioned predetermined threshold of 3(), when each user exits broadcasting, this counter resets again.
Set Top Box, in playing process, after receiving ANNOUNCE message, if program request, records the time point play at that time, and makes counter add 1, then judge whether to equal 3, if equal 3, then exit broadcasting; If be less than 3, then STB waits for the 1S time, then again initiates playing request, does not need to carry time parameter if live, live initiation playing request; If program request, in play message (message mutual when connecting with new resource veneer), need to carry the time parameter request of just now recording play.
Step 102, the playing request that media services control unit receiving set up box is initiated again, is connected to Secondary resource veneer by Set Top Box.
Step 102 specifically comprises following process: the playing request that media services control unit receiving set up box is initiated again, and the information be connected with Secondary resource veneer is sent to Set Top Box;
Media play link set up by Set Top Box and Secondary resource veneer, if provide order program service for user, then the time point of record sent to Secondary resource veneer, and obtains code stream from Secondary resource veneer, proceeds to play from time point.
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail,
The technical scheme of the embodiment of the present invention, improves the mechanism judging resource veneer off-line in original system, improves the mechanism that channel is rebuild, and adds the flow process reconnected in Set Top Box side, with the addition of counter and judge.
Fig. 2 is Auto-reconnect method signaling process figure after machine of delaying in the CDN system of the embodiment of the present invention, as shown in Figure 2, specifically comprises following process:
Step 201, the heartbeat by chain of command plane between resource veneer and media services control unit, 300ms is once;
Step 202, in STB playing process, and between media services control unit, every 15 seconds one time heartbeat message is mutual.
Step 203, in STB playing process, obtains Media Stream from resource board veneer and carries out decoding broadcasting;
Step 204, there is certain extremely in resource board veneer, media services control unit does not all receive the heartbeat that resource board veneer sends in 6 eartbeat intervals;
Step 205, now, media services control unit veneer judges this resource board veneer off-line, and rebuilds all channels on this veneer;
Step 206, meanwhile, node sends ANNOUNCE message to STB.
Step 207, after STB receives this error code appointed, initiates teardown request.
Step 208, media services control unit replys 200OK after receiving the teardown request that STB sends; Close this play session.
Step 209, STB now can initiate the playing request to this content again;
Step 210, media services control unit gets the normal and resource board veneer of available free resource of state again, and returns to STB.
Step 211, after STB receives information, and sets up media play link between this resource veneer;
Step 212, STB obtains code stream from this new resources veneer, plays.
Fig. 3 is the detail flowchart of Auto-reconnect method after machine of delaying in the CDN system of the embodiment of the present invention, as shown in Figure 3, specifically comprises following process:
Step 301, in node, certain resource veneer is served for STB provides code stream to play;
Step 302, in a certain moment, media services control unit detects resource veneer A abnormal state.
Step 303, A veneer is set to off-line state by media services control unit;
Step 304, media services control unit travels through all users on this A veneer, sends ANNOUNCE message to these users.
Step 305, meanwhile, media services control unit rebuilds channels all on this veneer.
Step 306, media services control unit receives the playing request to same content that STB sends again.
Step 307, media services control unit is looked into and is seen if there is this channel, namely determines whether this channel is rebuild successfully; Exist if channel has rebuild this node channel i.e., then arrive step 308; If channel has not also rebuild i.e. this node at present also not this channel, then arrive step 310.
Step 308, media services control unit judges whether this node has the normal resource veneer of state, and on this state normal resource veneer, whether available free resource can provide user to serve.If had, to step 309; If not, to step 310.
Step 309, selects the resource veneer of this free time to provide the service of broadcasting to STB.
Step 310, initiates redirect request, and STB provides to other nodes the service of broadcasting.
Fig. 4 is the STB side process chart of the embodiment of the present invention, as shown in Figure 4, specifically comprises following process:
Step 401, if STB receives the ANNOUNCE message that system side sends, then forwards step 402 to, otherwise continues normal play.
Whether step 402, after STB receives this error code, can increase by one and judge flow process, be receive third time, if so, then arrive step 403; If not, then proceed to step 404.And make this counter add 1.Particularly, in actual applications, in the internal memory of STB, increase global property variable C:0 is needed, after receiving this error code message, C:1; After STB user exits broadcasting, this counting C resets.
Step 403, directly replys and plays unsuccessfully, no longer initiates to play reconnection requests.
Step 404, STB records the time point T now play, and initiates teardown message to system side, closes and this time plays.Time variable T records the current point in time that STB plays, more again initiates carry this parameter when playing link, goes the request of node system side to play from this time point.
Step 405, STB now arranges timer, after waiting for the 1S time, then is initiated to the reconnection requests of node side, and carries the time point T of record in step 304 in the signaling.In this 1S time, the picture stop that STB shows stays the time point picture play last time, and the picture of displaying remains static.Preferably, in actual applications, increase timer Timer1 is now needed; Timing is 1S.
Step 406, from node system side, newly assigned resource veneer obtains code stream to STB, plays down times from last time.
From above whole flow process, the whole process user playing process picture still time is about 2.8S: veneer offline inspection time T1:1.8S, STB reconnect T2:1S time of delay, so show that being still in a certain image time is T=T1+T2=2.8S.
In sum, by means of the technical scheme of the embodiment of the present invention, by improving in prior art the mechanism judging resource veneer off-line, improve the mechanism that channel is rebuild, and the flow process reconnected is added in Set Top Box side, solve resource veneer in prior art and break down the failed problem of rear Set Top Box broadcasting, Set Top Box is continued on other resource veneers of this node as user provides service.
Device embodiment
According to embodiments of the invention, provide a kind of media services control unit, Fig. 5 is the structural representation of the media services control unit of the embodiment of the present invention, as shown in Figure 5, media services control unit according to the embodiment of the present invention comprises: rebuild module 50, sending module 52 and link block 54, be described in detail below to the modules of the embodiment of the present invention.
Rebuild module 50, for determining that the first resource veneer that it manages breaks down, making first resource veneer off-line and all channels on first resource veneer are rebuild on the normal Secondary resource veneer run;
Rebuild module 50 specifically for: do not receive in the given time first resource veneer send heartbeat report, then determine that first resource veneer breaks down.
Sending module 52, for sending to the Set Top Box obtaining service from first resource veneer the error code pre-set;
Link block 54, for the playing request that receiving set up box is initiated again, is connected to Secondary resource veneer by Set Top Box.
Link block 54 specifically for: the playing request that receiving set up box is initiated again, is sent to Set Top Box by the information be connected with Secondary resource veneer.
The concrete processing procedure of above-mentioned media services control unit has been described in detail in said method embodiment, does not repeat them here, and detailed process can be understood by the corresponding contents in reference method embodiment.
In sum, by means of the technical scheme of the embodiment of the present invention, Set Top Box is continued on other resource veneers of this node as user provides service.
System embodiment
According to embodiments of the invention, provide a kind of CDN system, Fig. 6 is the structural representation of the CDN system of the embodiment of the present invention, as shown in Figure 6, CDN system according to the embodiment of the present invention comprises: above-mentioned media services control unit 60 and Set Top Box 62, media services control unit 60 has been described in detail in the above-described embodiments, does not repeat them here, and is described in detail below to the Set Top Box 62 of the embodiment of the present invention.
Set Top Box 62 for: receive media services control unit 60 send error code after, off-line request is initiated to media services control unit 60, and after the off-line acknowledge message receiving media services control unit 60 transmission, again the playing request to corresponding contents is initiated, and connect with Secondary resource veneer, obtain service from Secondary resource veneer.
Set Top Box 62 specifically for: judge whether the number of times receiving error code exceedes predetermined threshold, if the judgment is Yes, then replys directly to user and plays unsuccessfully; Otherwise, when providing order program service for user, record the time point of current broadcasting, and initiate off-line request to media services control unit 60, when providing direct broadcast service for user, initiate off-line request directly to media services control unit 60.Set up media play link with Secondary resource veneer, if provide order program service for user, then the time point of record is sent to Secondary resource veneer, and obtain code stream from Secondary resource veneer, proceed to play from time point.
Set Top Box 62 also for: receive user send exit playing request, predetermined threshold is re-set as 0, and response exit playing request.
In sum, by means of the technical scheme of the embodiment of the present invention, Set Top Box 62 can be continued on other resource veneers of this node as user provides service.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (13)
1. to delay in content distributing network CDN system an Auto-reconnect method after machine, it is characterized in that, comprising:
Media services control unit determines that the first resource veneer that it manages breaks down, make described first resource veneer off-line and all channels on described first resource veneer are rebuild on the normal Secondary resource veneer run, sending to the Set Top Box obtaining service from described first resource veneer the error code pre-set;
Described media services control unit receives the playing request that described Set Top Box is initiated again, and described Set Top Box is connected to described Secondary resource veneer.
2. the method for claim 1, is characterized in that, described media services control unit is determined that first resource veneer that it manages breaks down and specifically comprised:
Described media services control unit does not receive the heartbeat report that described first resource veneer sends in the given time, then determine that described first resource veneer breaks down.
3. the method for claim 1, is characterized in that, after described media services control unit sends to the Set Top Box obtaining service from described first resource veneer the error code pre-set, described method comprises further:
Described Set Top Box, after receiving described error code, initiates off-line request to described media services control unit, and after the off-line acknowledge message receiving the transmission of described media services control unit, again initiates the playing request to corresponding contents.
4. method as claimed in claim 3, is characterized in that, described Set Top Box, after receiving described error code, is initiated off-line request to described media services control unit and specifically comprised:
Described Set Top Box judges whether the number of times receiving described error code exceedes predetermined threshold, if the judgment is Yes, then replys directly to user and plays unsuccessfully; Otherwise, when providing order program service for user, record the time point of current broadcasting, and initiate off-line request to described media services control unit, when providing direct broadcast service for user, initiate off-line request directly to described media services control unit.
5. method as claimed in claim 4, it is characterized in that, described method also comprises:
Described Set Top Box receive user send exit playing request, described predetermined threshold is re-set as 0, and response described in exit playing request.
6. method as claimed in claim 4, it is characterized in that, described media services control unit receives the playing request that described Set Top Box is initiated again, described Set Top Box is connected to described Secondary resource veneer and specifically comprises:
Described media services control unit receives the playing request that described Set Top Box is initiated again, and the information be connected with described Secondary resource veneer is sent to described Set Top Box;
Media play link set up by described Set Top Box and described Secondary resource veneer, if for user provides order program service, then the described time point of record is sent to described Secondary resource veneer, and obtain code stream from described Secondary resource veneer, proceed to play from described time point.
7. a media services control unit, is characterized in that, specifically comprises:
Rebuild module, for determining that the first resource veneer that it manages breaks down, making described first resource veneer off-line and all channels on described first resource veneer are rebuild on the normal Secondary resource veneer run;
Sending module, for sending to the Set Top Box obtaining service from described first resource veneer the error code pre-set;
Link block, for receiving the playing request that described Set Top Box is initiated again, is connected to described Secondary resource veneer by described Set Top Box.
8. media services control unit as claimed in claim 7, is characterized in that, described reconstruction module specifically for: do not receive the heartbeat report that described first resource veneer sends in the given time, then determine that described first resource veneer breaks down.
9. media services control unit as claimed in claim 7, is characterized in that, described link block specifically for: receive the playing request that described Set Top Box is initiated again, the information be connected with described Secondary resource veneer be sent to described Set Top Box.
10. a content distributing network CDN system, is characterized in that, comprises the media services control unit according to any one of claim 7 to 9, also comprises: Set Top Box;
Described Set Top Box is used for: after the error code receiving the transmission of described media services control unit, off-line request is initiated to described media services control unit, and after the off-line acknowledge message receiving the transmission of described media services control unit, again the playing request to corresponding contents is initiated, and connect with Secondary resource veneer, obtain service from described Secondary resource veneer.
11. systems as claimed in claim 10, is characterized in that, described Set Top Box specifically for: judge whether the number of times receiving described error code exceedes predetermined threshold, if the judgment is Yes, then replys directly to user and plays unsuccessfully; Otherwise, when providing order program service for user, record the time point of current broadcasting, and initiate off-line request to described media services control unit, when providing direct broadcast service for user, initiate off-line request directly to described media services control unit.
12. systems as claimed in claim 11, is characterized in that, described Set Top Box also for: receive user send exit playing request, described predetermined threshold is re-set as 0, and response described in exit playing request.
13. systems as claimed in claim 11, is characterized in that, described Set Top Box specifically for:
Media play link is set up with described Secondary resource veneer, if for user provides order program service, then the described time point of record is sent to described Secondary resource veneer, and obtain code stream from described Secondary resource veneer, proceed to play from described time point.
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| CN113206698A (en) * | 2021-03-22 | 2021-08-03 | 深圳震有科技股份有限公司 | Satellite media resource redundancy protection method, intelligent terminal and storage medium |
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| CN101583049A (en) * | 2009-06-02 | 2009-11-18 | 中兴通讯股份有限公司 | Device for detecting interruption of unicast channel code stream and method thereof |
| CN101835165A (en) * | 2010-04-30 | 2010-09-15 | 上海华为技术有限公司 | Cell reconstruction method and system based on hardware failure |
| CN102171995A (en) * | 2011-04-19 | 2011-08-31 | 华为技术有限公司 | Method for processing packet when server fails and router thereof |
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