CN100426754C - A method to realize protection switching of stream media and system - Google Patents
A method to realize protection switching of stream media and system Download PDFInfo
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- CN100426754C CN100426754C CNB2006101235194A CN200610123519A CN100426754C CN 100426754 C CN100426754 C CN 100426754C CN B2006101235194 A CNB2006101235194 A CN B2006101235194A CN 200610123519 A CN200610123519 A CN 200610123519A CN 100426754 C CN100426754 C CN 100426754C
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Abstract
The invention relates to a flow media protective switch system, which comprises service provider, service access provider, and service network connecting said two provides. Wherein, the service access provider and the service provider also comprises protective controller used to build protective group on the work path and protective path between two providers, and switch the path with changed state. The invention also discloses a relative method. The invention can avoid rebuilding path when the work path is bad, and it switches to recover the service.
Description
Technical field
The present invention relates to the network communications technology, relate in particular to a kind of method and system that are used for streaming media service.
Background technology
(Internet Protocol IP) changes and streaming media service provides under two trend by IP, and the stream media bearing business becomes future thrust on IP network at network interconnection fidonetFido; Because IP operation lacks synchronous digital hierarchy (Synchronous Digital Hierarchy, quick protective switch mechanism SDH) of being similar to; And streaming media service real-time height to the quality requirement height, when loss of data or time-delay occurring, can reduce the business experience effect.
When Media Stream transmits in IP network, need encapsulate data in the IP bag, IPv6 will become the main flow of carrying in the networks development afterwards, the package head format of IPv6 as shown in Figure 1, it comprises version number (Version), priority (Prio), flow identifier (Flow Label), data length (Payload Length), next packet header (Next Header), jumping figure restriction (Hop Limit), source address (Source Address), destination address (Destination Address), wherein Flow Label is used for Business Stream is identified, and Prio is used for the priority of tagged traffic stream bag.
The presentation mode of streaming media service as shown in Figure 2, it comprises four parts: business service provides an A and J, service access provides a K and G, connects the business network of A and G, user experience environment H.Business service provides an A and J can serve a plurality of clients, and same user inserts provides a K and G to provide access for a plurality of business; Providing an A and service access to provide a G middle in business service is the relation of multi-to-multi.Streaming media service provides an A to set out by business service,, is forwarded in the corresponding user environment after service access provides a G point to judge professional home to return to by business network.
Service quality (Quality of Service in order to guarantee Streaming Media on existing network, QoS), generally be planning two-layer virtual local area network (LAN) (Virtual Local Area Network on business network, VLAN), by VLAN being carried out bandwidth and priority management comes the guaranteed qos quality.When business network breaks down, carry out professional identification by business network inside by Routing Protocol, and business is forwarded to subscriber line ports.Because during service disconnection, business network re-routes by Routing Protocol, the business recovery time is slow.
As shown in Figure 3 on VLAN, have workflow paths such as A-C-F-G, A-C-E-G and A-B-D-E-G, service access provides a G by a plurality of set-top box (Set Top Box, STB) (there is shown three of X, Y, Z) is sent to Media Stream among the user experience environment H, when the route between C-F in the A-C-F-G workflow path is interrupted, can only regenerate the A-C-E-G route by Routing Protocol, business could recover normal.The process of this generation route is slow recovery time, and under the situation of service quality deterioration or interruption, the quick-recovery business can reduce professional experience effect soon.
Summary of the invention
In view of above-mentioned existing in prior technology problem, the purpose of this invention is to provide a kind of method and system that realize protection switching of stream media.Quick-recovery business soon under the situation of service quality deterioration or interruption guarantees the quality of streaming media service.
In order to solve the problems of the technologies described above; the present invention proposes a kind of system that realizes protection switching of stream media; it comprises that business service provides a little; service access provides a little; be connected that described business service provides a little and the service bearer network of described service access between providing a little; the protection route of the streaming media service between providing a little by flow identifier Flow Label identification services service provision point in the IP packet header and service access; set up the protection path of Streaming Media; described service access provides a little and business service further comprises the protection control device in providing a little; described protection control device is used for business service provided a little and the protection group is set up in operating path and the described protection path of service access between providing a little, and switch in the path that changes for state in the protection group.
Described protection control device includes memory cell, switch controller, the path status test point corresponding with the path and switches actuator; Wherein: described memory cell is used for storage protection group information; Described path status test point is used for detecting the described path operating state lastest imformation in the bearer network protection group; Described switch controller is used for putting detected path status lastest imformation according to described path detection, judges whether described path needs to switch; The described actuator of switching is used for judgement according to described switch controller, and the path that needs are switched is carried out path switching and handled in described protection group.
Preferable, described protection group is used to bundle that business service provides a little and at least one operating path and at least one protection path of service access between providing a little, and described protection path provides protection at least one operating path in the described protection group.
In order to realize said system, the invention provides a kind of method that realizes this system, it realizes that the protection switching of stream media method may further comprise the steps:
A, business service provide a little and the service bearer network of service access between providing a little between set up operating path, the protection route of the streaming media service between providing a little by flow identifier Flow Label identification services service provision point in the IP packet header and service access is set up described and the pairing protection of operating path path;
B, business service provided a little and a protection group is set up at least one operating path and at least one protection path binding of service access between providing a little;
C, when in detecting the protection group, having the operating state in path to change, switch in the path that in the protection group described state is changed.
Further comprising the steps of among the described step C: C1, detection path operating state lastest imformation; C2, collect the path status lastest imformation, more new route service state and store path state updating information, and judge according to the path status lastest imformation whether needs are switched in the path.
Among the described step C2, among the described step C2, the operating path workflow that state changes in described protection group is backward, and the protection path status is for good and when not providing protection for other operating paths; Or the operating path workflow that state changes in the described protection group improves by bad, and this operating path is when being provided by the protection path; Or the protection path workflow that state changes in the described protection group is backward, and it is when being in guard mode; Or the protection path workflow that state changes in the described protection group improves by bad, and when existing other operating path workflow status bad, and the path of then judging the variation that described state takes place need be protected and switch.
Preferable, described step C2 also further comprises: D1, make after needs switch judgement according to the path status lastest imformation, the affirmation information that the path need be switched passes to that service access provides a little and business service provides a little; Processing is switched in D2, the path of switching for described needs in the protection group.
Switching processing among the described step D2 further may further comprise the steps: D21, service access provide a little to provide to business service and send a switching services request, and indicate in request and switch the pairing ID of trace route path of switching rear path in preceding path; After D22, business service provide and a little receive described switching request, provide to service access and a little to return confirmation; D23, service access provide a little to be received to carry out after institute's confirmation and switches processing, with the path of path switching before switching after switch.
Preferable, also further may further comprise the steps between described step D21 and the D22: the path before E1, business service provide the Business Stream of naming a person for a particular job to send to simultaneously to switch and switch after the path.
Preferable, also further may further comprise the steps among the described step D23: the Business Stream that E2, service access provide point selection to switch in the rear path is transmitted.
Implement the present invention; has following beneficial effect: Streaming Media is set up a protection path corresponding with operating path by the present invention; and by one group of operating path of protection group binding; when operating path degenerates; do not need to rebulid the path, execute protection is switched the purpose that reaches fast quick-recovery business.Realization with system can improve professional experience effect by this method, guarantees the quality of streaming media service.
Description of drawings
Fig. 1 is existing IPv6 package head format schematic diagram;
Fig. 2 is existing streaming media service environment schematic diagram;
Fig. 3 is existing streaming media service presentation mode schematic diagram;
Fig. 4 is that the streaming media service of protection switching of stream media of the present invention system provides schematic diagram;
Fig. 5 is the pairing Business Stream schematic diagram in path in the business service network among Fig. 4;
Fig. 6 is that business service provides the schematic diagram of protection control device a little in the protection switching of stream media of the present invention system;
Fig. 7 is the flow chart of protection switching of stream media method of the present invention;
Fig. 8 is the first embodiment flow chart of protection switching of stream media method of the present invention;
Fig. 9 is the second embodiment flow chart of protection switching of stream media method of the present invention;
Figure 10 is the 3rd an embodiment flow chart of protection switching of stream media method of the present invention;
Figure 11 is the 4th an embodiment flow chart of protection switching of stream media method of the present invention.
Embodiment
Core concept of the present invention is; set up a protection group that includes a protection path and a plurality of operating paths in advance; insert to provide a little by the user quality of service is judged; a certain operating path under the situation of service quality deterioration or interruption; provide a little and business service provides cooperation a little to realize that automatic quick protective switch is to protecting the path by service access; quick-recovery business soon; guarantee the quality of streaming media service; also can be under protection path service quality deterioration or interruption and situation about improving, provide a little cooperation to realize that automatic rapid release protection path and protection switch to protecting the path by Service Access point and business service.
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
At first see also Fig. 4, Fig. 5 and Fig. 6; Fig. 4 has described the system that realizes protection switching of stream media; comprise that a business service provides point (A), a service access that point (G) and a service bearer network are provided; the service bearer network comprises a plurality of network nodes (B, C, D, E, F), a plurality of set-top box (X, Y, Z) and user experience environment (H).In the present invention; service flow path on the service bearer network is divided into operating path and protection path; described operating path is used to provide normal Business Stream; described protection path is used for being in when bad when the operating path Business Stream; for operating path provides protection stream; in the present invention; at least one operating path and at least one protection path binding are formed a protection group; its protection group can comprise an operating path and one protection path, also can comprise many operating paths and protection path or many operating paths and many protection paths.Described protection group leaves business service in provides an A and user's access to provide among the G, and it can identify by group number.Show three operating paths and a protection path on the service bearer network of Fig. 5, its operating path 1 is A-B-D-E-G; Operating path 2 is A-C-E-G; Operating path 3 is A-C-F-G; Its protection path 1 is A-B-E-G; these paths flow on the set-top box by business transferring; be sent among the user experience environment H by set-top box and go; Fig. 5 is the pairing Business Stream in path in the business service network among Fig. 4; 1 corresponding workflow 1 of operating path, operating path 2 corresponding workflows 2, operating path 3 corresponding workflows 3; protection path 1 corresponding protection stream 4, dotted portion is illustrated in and also has more work stream in the real process among the figure.Provide a little and business service also comprises the protection control device that is used for quick protective switch in providing a little in service access, its device as shown in Figure 6, the protection control device includes memory cell, switch controller, the path status test point corresponding with the path and switches actuator, wherein: described memory cell is used for storage protection group information, described protection group is used to bundle that business service provides a little and at least one operating path and at least one protection path of service access between providing a little, and described protection path provides protection at least one operating path of described protection group; Described path status test point is used for detecting the described path operating state lastest imformation in the bearer network protection group; Described switch controller is used for putting detected path status lastest imformation according to described path detection, judges whether the path that described state changes needs to switch; The described actuator of switching is used for judgement according to described switch controller, and the path that described needs are switched is carried out path switching and handled in described protection group.
Specifically describe the whole system operation flow process below in conjunction with Fig. 7:
Step 700: set up and the pairing protection of operating path path;
At first provide an A and service access to provide and set up protection path and operating path between the G in business service; the protection path is consistent with the operating path bandwidth of pairing protection; can divide by two layers of VLAN, also can when the user sends service request, dynamically set up by network control system.
Under the normal situation of network, operating path 1 carrying workflow 1, operating path 2 carrying workflows 2 and operating path 3 carrying workflows 3, protection path 1 carrying protection stream 1; It is to distinguish by the Flow Label in the IP packet header that workflow and protection stream provide the differentiation of a G in service access, and the Flow Label in the IP bag of workflow and protection stream provides an A to distribute in business service.When setting up the process of operating path; set up and the pairing protection of operating path path; pairing as operating path 1 for protecting path 1, operating path 2 pairing protection path 2 (not shown) and operating path 3 pairing protection paths 3 (not shown).
When setting up operating path and pairing protection path; the protection path also can provide protection for a plurality of operating paths; as protect path 1 to can be operating path 1, operating path 2 and operating path 3 protection is provided simultaneously, also can set up many protection paths for an operating path.
Step 701: for operating path and the pairing protection of operating path path setting up a protection group;
Provide an A and service access to provide between the G in business service with a protection path and the binding of a plurality of operating path; forming a protection group leaves business service in and provides an A and service access to provide among the G; it can identify by group number, and it sets form such as table 1:
Table 1: protection group example
| Path number | Path flow representative sign | The path service state | Service |
| Protection path | |||
| 1 | Protection stream: Flow Label (2234) | Good | Flow Label(2234) |
| |
Workflow 1:Flow Label (2234) | Bad | Flow Label(2234) |
| Operating path 2: | Workflow 2:Flow Label (54936) | Good | Flow Label(54936) |
| Operating path 3: | Workflow 3:Flow Label (239437) | Good | Flow Label(239437) |
Information in these protection groups all leaves in the memory cell, cell stores each path service status information, comprise the operating state of operating path, and the operating state in protection path and whether providing protection for operating path.There is the path status test point of a correspondence in every operating path and protection path at the protection control device, are used for detecting the operating state that monitors the workflow in every paths, judge that this path service state is as switching the restrictive condition of judgement.Protection group in table 1 has been set identical ID of trace route path for protection path 1 with operating path 1, and it is used for representing path flow representative sign.
The quality of workflow can be determined by the quality of stream media transmission quality in protection path and the operating path, when the stream media transmission quality in this operating path is bad (being lower than a standard that pre-sets), assert that then this workflow is bad; Otherwise, when the stream media transmission quality in this operating path is (being higher than a standard that pre-sets), assert that then this workflow is for well.
In the process of setting up the protection group; many protection paths and many operating paths can be bundled; article one, operating path can provide protection by several in protection group protection paths; also can allow a protection path provide protection for a plurality of protections path in the protection group; promptly, more effectively utilize system resource in the relation of protection group many protections path and operating path formation multi-to-multi.
Step 702: service access provides path status test point a little to receive that path status changes signal, to the protection switch controller transmit path state information of Service Access point;
In real process, provide a G oneself to detect each path service state by the business service access, also can be by the Business Stream quality of coming detection of dynamic to be subjected in set-top box, when service quality occurring and degenerate, the business service state change message is sent to service access to be provided a G to trigger to switch.
Step 703: service access provides the switch controller in a little the protection control device that path status information and new route service state and protect service access to provide in the memory cell in a little the protection control device path status lastest imformation more are provided;
Step 704: service access provides switch controller a little to judge according to the path status lastest imformation whether needs are switched in the path, switches condition then carry out step 705 if satisfy, otherwise to change step 706;
Step 705: service access provides a little switch actuator and business service to provide the actuator of switching a little to provide the judged result of a switch controller according to service access, switches processing in the protection group;
Step 706: finish.
More than be the basic flow sheet in the whole protection switching of stream media system, it is switched in the process of execution in protection, implement concrete protection reversed process as the case may be, below Fig. 8 promptly show the schematic flow sheet of the first embodiment of the present invention; Show the workflow of operating path 1 processing procedure that protection is switched when backward.
The workflow of operating path 1 is backward, and its flow process is as follows:
Step 800: the workflow status of operating path changes;
Step 801: the operating state that service access provides a little path status test point to detect operating path changes;
Step 802: service access provides switch controller a little to collect operating path operating state change information, and state is saved in the service state of path;
Step 803: service access provides switch controller collection path status a little to upgrade when changing, and operating path is switched judgement;
Step 804: whether the state of the workflow in judgment task path changes backward, is backward if judged result is a workflow 1, then carry out step 805; Otherwise change step 812;
Step 805: whether inquiry protection path operating state if Query Result is to protect the operating state in path 1 for well in memory cell, then carry out step 806, otherwise is changeed step 812 for well;
Step 806: whether inquiry protection path is for operating path provides protection, if Query Result then carry out step 807 for protecting path 1 not for operating path 1 provides protection in memory cell, otherwise changes step 812.
Step 807: the affirmation information that service access provides switch controller a little that needs are switched is passed to service access a little the actuator of switching is provided;
Step 808: service access provides the actuator of switching a little to provide the actuator transmission switching services of switching a little to do the request in path with knocking off to business service, and indicates the ID of trace route path in protection path in request;
Step 809: business service provide a little switch actuator receive switch and discharge the request of operating path after, provide to service access and a little to return confirmation;
Provide to service access a little return confirmation in, business service provides name a person for a particular job service route operating path 1 and protection path 1 to send Business Stream simultaneously, this moment, two sending service streams had same IP destination address and Flow Label sign.
When having a plurality of protections path to provide protection for operating path in the protection group, business service provides the service route operating path of naming a person for a particular job to send Business Stream simultaneously with the protection path, and this moment, Business Stream had same IP destination address and Flow Label sign.
Step 810: service access provides the actuator of switching a little to receive that business service provides the affirmation of a little returning information;
Step 811: service access provides a little switch actuator and business service to provide the actuator of switching a little to switch and discharge operating path;
Service access provides a basis to switch sign to select the protection circulation at protection place, path to be dealt in the user environment of operating path 1 pairing workflow 1 from two Business Streams; finished the function that protection is switched this moment; Business Stream switched to protection from operating path gone the path, the protection path provides protection for operating path.
In the protection group, there is a plurality of protections path from Business Stream, to select in the protection path protection at place to circulate to be dealt in the user environment of the pairing workflow of operating path for operating path provides when protection, service access to provide a basis to switch sign.
Step 812: finish.
Finishing of above step in whole protection switching of stream media system, finished the protection path and switched for operating path provides the protection of protection stream.
Next carry out step 900: the state of judgment task path workflow changes bad the improving of whether serving as reasons, and is improved by bad if judged result is the workflow of operating path 1, then carry out step 901; Otherwise carry out step 907;
Step 901: whether inquiry protection path for operating path provides protection, if Query Result is providing protection for operating path 1 then carry out step 902 for protection path 1 in memory cell, otherwise carry out step 907;
Step 902: the affirmation information that service access provides switch controller a little that needs are switched is passed to service access a little the actuator of switching is provided;
Step 903: service access provides the actuator of switching a little to provide the actuator of switching a little to send switching services and release guard path request to business service, and indicates the ID of trace route path of operating path in request;
Step 904: after business service provides switching actuator and receive the request of switching with the release guard path a little, provide to service access and a little to return confirmation;
Provide to service access a little return confirmation in, business service provides name a person for a particular job service route operating path 1 and protection path 1 to send Business Stream simultaneously, this moment, two sending service streams had same IP destination address and Flow Label sign.
Step 905: the actuator of switching of customer service access point receives that business service provides the affirmation information that actuator returns of switching a little;
Step 906: service access provide a little switch actuator and business service provides the actuator of switching a little to switch and the release guard path;
Service access provides a basis to switch sign and selects from two Business Streams in the user environment at operating path place, has finished the function that protection is switched this moment, and Business Stream has been gone to operating path from the protection path switching.
Step 907: finish.
When the protection path provides protection for a plurality of operating paths, finish above-mentioned protection path switching to operating path, promptly between step 906 and step 907, also have following steps:
Whether other path workflow status of inquiry for well in memory cell, if in the protection group Query Result be other operating paths all for well, then change step 907, otherwise carry out the step in the specific embodiment one, for other operating paths provide protection.
By the step in the foregoing description 2, by going bad under the situation about improving, can finish quick protective switch from the protection path to operating path at operating path.
Figure 10 shows the 3rd embodiment workflow schematic diagram that the present invention realizes the protection switching of stream media method, and it shows when the protection path is in guard mode, the processing procedure that the protection when its workflow is backward is switched.Its workflow step is as follows:
Step 1000: the protection path status changes;
Step 1001: the operating state that service access provides a little path status test point to detect the protection path changes;
Step 1002: service access provides switch controller a little to collect protection path operating state change information, and state is saved in the service state of path;
Step 1003: service access provides switch controller collection path status a little to upgrade when changing, and judgement is switched in the protection path;
Step 1004: whether the state change of judging the workflow of protecting the path is backward, if judged result is backward for protection path workflow, then carry out step 1005, otherwise changes step 1011;
Step 1005: whether inquiry protection path workflow is providing protection, if Query Result then carry out step 1006, otherwise carry out step 1011 for protecting the path workflow for operating path provides protection in memory cell;
Step 1006: the affirmation information that service access provides switch controller a little that needs are switched is passed to service access a little the actuator of switching is provided;
Step 1007: service access provides the actuator of switching a little to provide a little the request that actuator sends the release guard path of switching to business service;
Step 1008: after service access provides switching actuator and receive the request in release guard path a little, provide to service access and a little to return confirmation;
Step 1009: service access provides the actuator of switching a little to receive that business service provides the affirmation of a little returning information;
Step 1010: service access provide a little switch actuator and business service provides the actuator of switching a little to carry out the release guard path.
Step 1011: finish.
By the step in the foregoing description 3,, can finish release guard path workflow fast protecting under the backward situation of path workflow.
Next carry out step 1100: whether the state change of judging protection path workflow is improved by bad, if judged result is improved by bad for protection path workflow, then carry out step 1101, otherwise commentaries on classics step 1107;
Step 1101: whether the pairing operating path workflow in inquiry protection path is for well, if Query Result is when protecting the pairing operating path workflow in path to be, then to change step 1107, otherwise carry out step 1102 in memory cell;
If the protection path for a plurality of operating paths provide when protection, need provide the whole protecting path operating path of protection to carry out its workflow of inquiry judging whether for well.
Step 1102: the affirmation information that service access provides switch controller a little that needs are switched is passed to service access a little the actuator of switching is provided;
Step 1103: service access provides the actuator of switching a little to provide the actuator of switching a little to send the switching services request to business service, and indicates the ID of trace route path of operating path in request;
Step 1104: after business service provides switching actuator and receive the switching services request a little, provide to service access and a little to return confirmation;
Provide to service access a little return confirmation in, business service provides name a person for a particular job service route operating path and protection path to send Business Stream simultaneously, this moment, two sending service streams had same IP destination address and Flow Label sign.
Step 1105: service access provides the actuator of switching a little to receive that business service provides the affirmation of a little returning information;
Step 1106: the customer service access point switch actuator and business service provides the actuator of switching a little to switch;
Service access provides a basis to switch sign to select the protection circulation at protection place, path to be dealt in the user environment of the pairing workflow of operating path from two Business Streams; finished the function that protection is switched this moment; Business Stream switched to protection from operating path gone the path, the protection path provides protection for operating path.
Step 1107: finish.
By the step among above-mentioned the 4th embodiment, protection path workflow by bad situation about improving under, by the corresponding workflow status that the operating state in protection path is provided of inquiry institute, under operating path is bad situation, can finish to protect fast and switch.
In sum; the present invention is by setting up a protection path corresponding with operating path to Streaming Media; and by one group of operating path of protection group binding; or degenerate when improving at operating path; do not need to rebulid the path; execute protection is switched the purpose that reaches fast quick-recovery business, in the time of also can degenerating in the protection path or improve, can search other operating path states fast and provide protection or rapid release protection path for it.By providing protection, can guarantee to protect the operating efficiency in path to reach maximum to a plurality of operating paths of protection path setting.Realization with system can improve professional experience effect by this method, guarantees the quality of streaming media service, can provide quick protective switch for streaming media service.
Above disclosed is a kind of preferred embodiment of the present invention only, can not limit the present invention's interest field certainly with this, and therefore the equivalent variations of doing according to claim of the present invention still belongs to the scope that the present invention is contained.
Claims (10)
1; a kind of system that realizes protection switching of stream media; it is characterized in that; comprise that business service provides a little; service access provides a little; be connected that described business service provides a little and the service bearer network of described service access between providing a little; the protection route of the streaming media service between providing a little by flow identifier Flow Label identification services service provision point in the IP packet header and service access; set up the protection path of Streaming Media; described service access provides a little and business service further comprises the protection control device in providing a little; described protection control device is used for business service provided a little and the protection group is set up in operating path and the described protection path of service access between providing a little, and processing is switched in the path that changes for state in the protection group.
2, the system of realization protection switching of stream media as claimed in claim 1 is characterized in that, described protection control device includes memory cell, switch controller, the path status test point corresponding with the path and switches actuator; Wherein:
Described memory cell is used for storage protection group information;
Described path status test point is used for detecting the described path operating state lastest imformation in the bearer network protection group;
Described switch controller is used for putting detected path status lastest imformation according to described path detection, judges whether the path that described state changes needs to switch;
The described actuator of switching is used for judgement according to described switch controller, and the path that described needs are switched is carried out path switching and handled in described protection group.
3, the system of realization protection switching of stream media as claimed in claim 1; it is characterized in that; described protection group is used to bundle that business service provides a little and at least one operating path and at least one protection path of service access between providing a little, and described protection path provides protection at least one operating path in the described protection group.
4, a kind of method that realizes protection switching of stream media is characterized in that, this method may further comprise the steps:
A, business service provide a little and the service bearer network of service access between providing a little between set up operating path, the protection route of the streaming media service between providing a little by flow identifier Flow Label identification services service provision point in the IP packet header and service access is set up the pairing protection of described operating path path;
B, business service provided a little and a protection group is set up at least one operating path and at least one protection path binding of service access between providing a little;
C, when in detecting the protection group, having the operating state in path to change, switch in the path that in the protection group described state is changed.
5, the method for realization protection switching of stream media as claimed in claim 4 is characterized in that, and is further comprising the steps of among the described step C:
C1, detection path operating state lastest imformation;
C2, collect the path status lastest imformation, more new route service state and store path state updating information, and judge according to the path status lastest imformation whether needs are switched in the path.
6, the method for realization protection switching of stream media as claimed in claim 5, it is characterized in that, among the described step C2, the operating path workflow that state changes in described protection group is backward, and the protection path status is for good and when not providing protection for other operating paths; Or the operating path workflow that state changes in the described protection group improves by bad, and this operating path is when being provided by the protection path; Or the protection path workflow that state changes in the described protection group is backward, and it is when being in guard mode; Or the protection path workflow that state changes in the described protection group improves by bad, and when existing other operating path workflow status bad, and the path of then judging the variation that described state takes place need be protected and switch.
7, the method for realization protection switching of stream media as claimed in claim 5 is characterized in that, described step C2 also further comprises:
D1, make after needs switch judgement according to the path status lastest imformation, the affirmation information that the path need be switched passes to that service access provides a little and business service provides a little;
Processing is switched in D2, the path of switching for described needs in the protection group.
8, the method for realization protection switching of stream media as claimed in claim 7 is characterized in that, switches processing among the described step D2 and further may further comprise the steps:
D21, service access provide a little to provide to business service and send a switching services request, and indicate in request and switch the pairing ID of trace route path of switching rear path in preceding path;
After D22, business service provide and a little receive described switching request, provide to service access and a little to return confirmation;
D23, service access provide a little to be received to carry out after institute's confirmation and switches processing, with the path of path switching before switching after switch.
9, the method for realization protection switching of stream media as claimed in claim 8 is characterized in that, also further may further comprise the steps between described step D21 and the D22:
Path before E1, business service provide the Business Stream of naming a person for a particular job to send to simultaneously to switch and switch after the path.
10, the method for realization protection switching of stream media as claimed in claim 8 is characterized in that, also further may further comprise the steps among the described step D23:
The Business Stream that E2, service access provide point selection to switch in the rear path is transmitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101235194A CN100426754C (en) | 2006-11-13 | 2006-11-13 | A method to realize protection switching of stream media and system |
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| CNB2006101235194A CN100426754C (en) | 2006-11-13 | 2006-11-13 | A method to realize protection switching of stream media and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011017892A1 (en) * | 2009-08-13 | 2011-02-17 | 中兴通讯股份有限公司 | Method and apparatus for implementing load sharing for communication traffic |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101997728B (en) * | 2009-08-21 | 2015-08-12 | 中兴通讯股份有限公司 | A kind of checkout gear of Ethernet localised protection and method |
| CN101997713A (en) * | 2009-08-31 | 2011-03-30 | 中兴通讯股份有限公司 | Method for realizing Ethernet path protection switching |
| CN106850268B (en) * | 2016-12-29 | 2019-12-13 | 瑞斯康达科技发展股份有限公司 | device and method for realizing linear protection switching |
| CN113453095B (en) * | 2020-03-26 | 2023-03-28 | 华为技术有限公司 | Method and device for restoring path configuration |
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| CN1588890A (en) * | 2004-10-08 | 2005-03-02 | 烽火通信科技股份有限公司 | Method for controlling plane participation protective rotation in ASON network |
| CN1703886A (en) * | 2002-10-14 | 2005-11-30 | 马科尼通讯有限公司 | Protection against the effect of equipment failure in a communications system |
| CN1728645A (en) * | 2004-07-31 | 2006-02-01 | 华为技术有限公司 | Method for protecting operation of light transmission network |
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| CN1703886A (en) * | 2002-10-14 | 2005-11-30 | 马科尼通讯有限公司 | Protection against the effect of equipment failure in a communications system |
| CN1728645A (en) * | 2004-07-31 | 2006-02-01 | 华为技术有限公司 | Method for protecting operation of light transmission network |
| CN1588890A (en) * | 2004-10-08 | 2005-03-02 | 烽火通信科技股份有限公司 | Method for controlling plane participation protective rotation in ASON network |
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| WO2011017892A1 (en) * | 2009-08-13 | 2011-02-17 | 中兴通讯股份有限公司 | Method and apparatus for implementing load sharing for communication traffic |
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