CN102468973A - Alarm control method and device for aggregation link in packet switching network - Google Patents
Alarm control method and device for aggregation link in packet switching network Download PDFInfo
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- CN102468973A CN102468973A CN2010105427931A CN201010542793A CN102468973A CN 102468973 A CN102468973 A CN 102468973A CN 2010105427931 A CN2010105427931 A CN 2010105427931A CN 201010542793 A CN201010542793 A CN 201010542793A CN 102468973 A CN102468973 A CN 102468973A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/50—Network service management, e.g. ensuring proper service fulfilment according to agreements
- H04L41/5003—Managing SLA; Interaction between SLA and QoS
- H04L41/5019—Ensuring fulfilment of SLA
- H04L41/5025—Ensuring fulfilment of SLA by proactively reacting to service quality change, e.g. by reconfiguration after service quality degradation or upgrade
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Abstract
The invention discloses an alarm control method and an alarm control device for an aggregated link in a packet switching network. The method comprises the following steps of: when the aggregated link fails, judging whether an available bandwidth resource exists in the aggregated link, if the available bandwidth resource exists in the aggregated link, switching a service stream carried by a failed member link in the aggregated link to the available bandwidth resource, if the available bandwidth resource does not exist in the aggregated link or the switching fails, informing the failure information of the service stream to a corresponding control node. By the method and the device, the service stream can be protected flexibly in the aggregated link, and the service protection efficiency is improved.
Description
Technical field
The present invention relates to packet network, be meant aggregated links alarm control method and device in a kind of packet network especially.
Background technology
Along with the growth of data business volume with to the raising of quality of service requirement; In packet network; Adopted multiprotocol label switching (MPLS at present; Multi-Protocol Label Switching), technology such as MPLS-TP (MPLS-Transport Profile), operator backbone bridging technology (PBB, Provider BackboneBridge), VLAN (VLAN, Virtual Local Area Network) exchange realize traffic engineering.Before transmitting user data, formulate service-level agreement (SLA, Service-Level Agreement) according to customer requirements; Through the pre-configured forwarding of data of control protocol path; Distribute bandwidth resources, form the service flow that service quality such as having bandwidth guarantees, and when network resource status changes (link failure, network resource utilization etc.); Further adjust the forward-path of service flow; Thereby satisfy user's QoS (service quality) requirement, so traffic engineering (TE, Traffic Engineering) technology in the application of carrier network more and more widely at present.High bandwidth, high availability become the packet network most important characteristic day by day.Link aggregation is an important technology that satisfies network high availability and high bandwidth.
Link aggregation technology (having regulation to describe at IEEE 802.3ad) is that several physical links with two equipment rooms are combined into a link (being called an aggregated links) in logic; This link logically is an integral body; At miscellaneous equipment is a link, has shielded the details of inner composition and transmission data.
Obviously the link aggregation technology can reach the purpose of simplifying network topology.In addition; Polymerization internal physical link can be accomplished data transmit-receive task and backup each other jointly; As long as also there is the Member Link of ability operate as normal; Data flow on the faulty link can switch to the Member Link of other operate as normal, and whole aggregated links just can not lose efficacy, thereby reaches the professional purpose of protection in aggregated links inside.Simultaneously, according to process result service flow is carried out the protection of other modes (outside the aggregated links) more afterwards, must delay some times so, reduced efficient for service protection if the aggregated links inter-process is intact by the time.
Therefore, if a kind of technology can be provided: in aggregated links, during some Member Link fault, will protect action to carry out as much as possible, and realize the service flow protection neatly in aggregated links inside; And prejudge the carrying out that can the resource in the aggregated links satisfy the protection action; If can not; Then notify Control Node/node to take other safeguard measures (for example dynamic heavy-route) that service flow is protected rapidly, this technology will seem very useful in packet network so.
Summary of the invention
In view of this, main purpose of the present invention is to provide aggregated links alarm control method and the device in a kind of packet network, can in aggregated links, realize the service flow protection neatly, has improved the efficient for service protection.
To achieve these goals, technical scheme of the present invention is achieved in that
The invention provides the aggregated links alarm control method in a kind of packet network, this method comprises:
When aggregated links breaks down, judge whether there are spendable bandwidth resources in the aggregated links;
Judge when having spendable bandwidth resources in the aggregated links, the service flow that Member Link carried that breaks down in the said aggregated links is switched on the said spendable bandwidth resources;
Judge when not having spendable bandwidth resources in the aggregated links, perhaps said when switching failure, the fault message of said service flow is communicated to corresponding Control Node.
Further, the service flow that Member Link carried that breaks down in the said aggregated links is switched on the said spendable bandwidth resources, specifically comprises:
Judge when said service flow has the protection of reservation bandwidth resources, said service flow is switched on the said reservation protection bandwidth resources;
Accordingly; When switching failure; The fault message of said service flow is communicated to corresponding Control Node, specifically comprises: said service flow is switched to when failing on the said reservation protection bandwidth resources, the fault message of said service flow is communicated to corresponding Control Node.
Further, the service flow that Member Link carried that breaks down in the said aggregated links is switched on the said spendable bandwidth resources, specifically comprises:
Judge when said service flow does not have said reservation to protect bandwidth resources, search the idle bandwidth resource in the Member Link that in aggregated links, does not break down, said service flow is switched on the said idle bandwidth resource;
Accordingly, switch when failure, the fault message of said service flow is communicated to corresponding Control Node, specifically comprise: said service flow is switched to when failing on the said idle bandwidth resource, the fault message of said service flow is communicated to corresponding Control Node.
Further, the service flow that Member Link carried that breaks down in the said aggregated links is switched on the said spendable bandwidth resources, specifically comprises:
Judge when said service flow does not have said reservation protection bandwidth resources and searches less than said idle bandwidth resource; But search the bandwidth-hogging resource in the Member Link that in aggregated links, does not break down, but said service flow is switched on the said bandwidth-hogging resource;
Accordingly; When switching failure; The fault message of said service flow is communicated to corresponding Control Node, specifically comprises: but said service flow is switched to when failing on the said bandwidth-hogging resource, the fault message of said service flow is communicated to corresponding Control Node.
Further, but when searching the bandwidth-hogging resource in the said Member Link that in aggregated links, does not break down, according to following principle:
The bandwidth resources that the minimum service flow of the priority that Member Link carried that selection is not broken down takies are seized; When said priority is identical, select the minimum shared bandwidth resources of service flow of granularity to seize;
But be lower than the priority of said service flow by the priority of the service flow of carrying before being seized with the bandwidth-hogging resource;
But be not less than the required bandwidth of said service flow with bandwidth-hogging.
Further, but after being switched to said service flow on the said bandwidth-hogging resource, this method also comprises:
But said bandwidth-hogging resource is seized the Control Node that is communicated to correspondence by preemption information of the service flow of carrying before.
Further, judge when not having spendable bandwidth resources in the aggregated links, the fault message of said service flow be communicated to corresponding Control Node, specifically comprise:
Judge when but said service flow does not have said reservation protection bandwidth resources, searches less than said idle bandwidth resource and searches less than said bandwidth-hogging resource, the fault message of said service flow is communicated to corresponding Control Node.
Further, search the idle bandwidth resource in the Member Link that adopts load-balancing algorithm in said aggregated links, not break down.
Further, when aggregated links broke down, this method also comprised:
When the Member Link that breaks down in the said aggregated links carries a plurality of service flow, according to the priority order said a plurality of service flow of poll successively of pin from high to low;
The service flow that is polled to is confirmed whether there are spendable bandwidth resources in the aggregated links.
The present invention also provides the ACU alarm control unit of the aggregated links in a kind of packet network, and this device comprises:
Analysis module when being used for aggregated links and breaking down, confirms whether there are spendable bandwidth resources in the aggregated links;
Protection module is used for when having spendable bandwidth resources in the aggregated links, and the service flow that Member Link carried that breaks down in the said aggregated links is switched on the said spendable bandwidth resources;
Alarm module is used for when not having spendable bandwidth resources in the aggregated links, when perhaps switching failure described in the protection module, the fault message of said service flow is communicated to the Control Node of correspondence.
Further, said analysis module is used for also confirming that said service flow has the protection of reservation bandwidth resources;
Said protection module also is used for when said service flow has the protection of reservation bandwidth resources, and said service flow is switched on the said reservation protection bandwidth resources;
Accordingly, said alarm module also is used for said protection module said service flow is switched to when failing on the said reservation protection bandwidth resources, and the fault message of said service flow is communicated to corresponding Control Node.
Further, said analysis module also is used for when said service flow does not have said reservation to protect bandwidth resources, searching the idle bandwidth resource in the Member Link that in aggregated links, does not break down;
Said protection module also is used for not having said reservation protection bandwidth resources in said service flow, when said analysis module finds the idle bandwidth resource, said service flow is switched on the said idle bandwidth resource;
Accordingly, said alarm module also is used for said service flow being switched to when failing on the said idle bandwidth resource at said protection module, and the fault message of said service flow is communicated to corresponding Control Node.
Further, said analysis module also is used for not having said reservation protection bandwidth resources in said service flow, when searching less than said idle bandwidth resource, but searches the bandwidth-hogging resource in the Member Link that in aggregated links, does not break down;
Said protection module, but also be used for not having said reservation protection bandwidth resources, searching less than said idle bandwidth resource, when said analysis module finds the bandwidth-hogging resource in said service flow, but said service flow is switched on the said bandwidth-hogging resource;
Accordingly, said alarm module is switched to said service flow when failing on the said bandwidth-hogging resource but also be used for said protection module, and the fault message of said service flow is communicated to corresponding Control Node.
Further; Said alarm module; But when also being used for not having said reservation protection bandwidth resources, searching and searching, the fault message of said service flow is communicated to corresponding Control Node less than said bandwidth-hogging resource less than said idle bandwidth resource in said service flow; But also be used for said bandwidth-hogging resource by the Control Node that is communicated to correspondence by preemption information of the service flow of carrying before seizing.
The method of aggregated links of the present invention alarm control: in aggregated links after the one or more Member Link fault; As much as possible alarm is compressed on aggregated links inside; Promptly find the bandwidth resources of the Business Stream that can be used for carrying faulty link to switch as much as possible in aggregated links inside, but as reserving the bandwidth-hogging resource in the Member Link that does not break down in idle bandwidth resource and the aggregated links in the Member Link that does not break down in protection bandwidth resources, the aggregated links; Like this, in aggregated links, just can realize the service flow protection neatly; When in judging aggregated links, not having spendable bandwidth resources, perhaps when switching failure, carry out the alarm of fault, adopt other guard methods that Business Stream is protected immediately, so just improved efficient for service protection.
In addition; When Resources Department was abundant in the aggregated links, whether the present invention for can make judgements, promptly judges whether to exist spendable resource (but reserving the bandwidth-hogging resource in the Member Link that does not break down in the idle bandwidth resource protected in the Member Link that does not break down in bandwidth resources, the aggregated links and the aggregated links) through switch or seize to satisfy the demands in advance; If there is spendable resource, then can then carry out and switch/seize operation, if there is not spendable resource, then directly the fault message of service flow is communicated to the Control Node of correspondence.Judge whether to exist spendable resource in advance, the advantage of doing like this is: can before switching action is carried out, just make and judge whether to transmit alarm, rather than wait for that switching the result determines whether transmitting alarm, has improved the speed that alarm transmits greatly.
Description of drawings
Fig. 1 is the aggregated links alarm control method flow chart in the packet network of the present invention;
Fig. 2 is the aggregated links alarm control method sketch map of one embodiment of the invention;
Fig. 3 is the aggregated links sketch map;
Fig. 4 is the aggregated links ACU alarm control unit structural representation in the packet network of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment technical scheme of the present invention is further set forth in detail.
Aggregated links alarm controlling schemes in the packet network of the present invention, as shown in Figure 1, comprising:
Step 002 when having spendable bandwidth resources in the aggregated links, is switched to the service flow that Member Link carried that breaks down in the aggregated links on the spendable bandwidth resources;
Step 003 when not having spendable bandwidth resources in the aggregated links, when perhaps switching failure, is communicated to corresponding Control Node with the fault message of service flow.
Wherein, Spendable bandwidth resources comprise: but reserve the bandwidth-hogging resource in the Member Link that does not break down in idle bandwidth resource and the aggregated links in the Member Link that does not break down in protection bandwidth resources, the aggregated links, concrete being embodied as of switching and alarm:
When service flow has the protection of reservation bandwidth resources, service flow is switched on the reservation protection bandwidth resources; Accordingly, service flow is switched to reserves when failing on the protection bandwidth resources, the fault message of service flow is communicated to corresponding Control Node;
When service flow is not reserved the protection bandwidth resources, search the idle bandwidth resource in the Member Link that in aggregated links, does not break down, service flow is switched on the idle bandwidth resource; Accordingly, service flow is switched to when failing on the idle bandwidth resource, the fault message of service flow is communicated to corresponding Control Node;
When service flow is not reserved the protection bandwidth resources and searched less than the idle bandwidth resource, but search the bandwidth-hogging resource in the Member Link that in aggregated links, does not break down, but service flow is switched on the bandwidth-hogging resource; Accordingly, but service flow is switched to when failing on the bandwidth-hogging resource, the fault message of service flow is communicated to corresponding Control Node;
When but service flow is not reserved the protection bandwidth resources, searches less than the idle bandwidth resource and searched less than the bandwidth-hogging resource, the fault message of service flow is communicated to the Control Node of correspondence.
In addition, but after being switched to service flow on the bandwidth-hogging resource, but also need be with the bandwidth-hogging resource by the Control Node that is communicated to correspondence by preemption information of the service flow of carrying before seizing.
Be illustrated in figure 2 as the aggregated links alarm control method in the packet network of the present invention, comprise the steps:
Step 102 judges whether to exist the service flow that need protect, if, get into step 103, if not, get into step 116.
When one or more Member Link fault in the aggregated links, all service flow of carrying on the Member Link of poll fault, find the service flow that need protect after, service flow is handled, get into step 103; On the fault Member Link, do not carry service flow, get into step 116.
It is to be noted; During one or more Member Link fault in the aggregated links, may find many service flow that need protection, when these many service flow are handled; Need in a certain order; Preferably, according to service flow priority order from high to low, guarantee the higher service flow priority treatment of priority.
Further, to two service flow that priority is identical, can handle according to the descending order of granularity.
Protection to the service flow that needs protection is carried out is handled of step 103～114.
Step 103 judges whether the current service flow of processing of protecting has the protection of reservation bandwidth resources, if execution in step 104 is if not, then execution in step 108.
Step 104 when the current service flow of protecting processing has the protection of reservation bandwidth resources, judges whether the Member Link at this protection bandwidth resources place lost efficacy, if inefficacy, execution in step 108; If do not lose efficacy execution in step 105.
Step 109 judges whether to find the idle bandwidth resource, if then execution in step 105, the current service flow of processing of protecting is switched on the idle bandwidth resource, and execution in step 106 then, repeat no more here; If do not find idle resource conservation, then execution in step 110.
1, the bandwidth resources that the minimum service flow of selecting not break down of the priority that Member Link carried takies are seized;
When 2, the priority of service flow is identical, select the minimum shared bandwidth resources of service flow of granularity to seize;
3, be lower than the current priority of protecting the service flow of processing by the priority of the service flow of bandwidth-hogging resource bearing;
4, be not less than the current required bandwidth of service flow of protecting processing by bandwidth-hogging.
But be the bandwidth-hogging resource according to the bandwidth resources that mentioned above principle is selected.
Step 115 judges whether to have accomplished the processing to all service flow that need protect, if then execution in step 116, if not, then return step 103.
Step 116 is upgraded and the bandwidth information of the aggregated links that floods.
In addition, after the Member Link of fault recovers,, then this Business Stream is switched on this Member Link again if loaded service stream has the attribute that returns before this Member Link, otherwise, do not handle.
Below in conjunction with accompanying drawing, the above-mentioned technical scheme of the present invention is done further to specify through providing some embodiment.In an embodiment of the present invention, not allowing a service flow to stride a plurality of Member Links simultaneously transmits.
Fig. 2 is illustrated in has an aggregated links Link1 between node A and the Node B, this aggregated links is made up of 3 physics Member Link Link1-1, Link1-2, Link1-3, and wherein, the bandwidth of every Member Link is 20M.
The service flow situation that each Member Link carried of embodiment one, assumed fault pre-polymerization link Link1 is as shown in table 1, and wherein " service flow 4-R " expression is the reservation protection bandwidth resources of service flow 4.
Table 1
Wherein, numerical priority value is more little, and priority is high more, this shows, the priority of service flow 4 is the highest.
When member's link Link1-3 produces fault:
At first search service flow that Member Link Link1-3 carried, promptly need protect the service flow of processing according to service flow priority, wherein, the priority of service flow 4 is higher than service flow 5, therefore at first handles service flow 4.
Can know from table 1; Service flow 4 has the reservation protection bandwidth resources of 5M in Member Link Link1-2, enough carry service flow 4, therefore carries out switching operation; With the service flow 4 that fault Member Link Link1-3 carries, be switched to it on the reservation protection bandwidth resources of Link1-2.
Switchover mode can be taked one of following dual mode:
Unidirectional switching after a direction of link detects fault, only starts this link and makes a start and switch;
Dual-ended switching, when link after sending direction detects fault, starts this link and make a start and switch, and the sending direction of opposite end is switched (the sending and receiving passage strict conformance that the meaning of dual-ended switching is bi-directional service stream) equally in the announcement opposite end.
Unidirectional switching and dual-ended switching specifically be embodied as prior art, repeat no more here.
After reversed process runs succeeded, search the next one and need protect the service flow of processing, be service flow 5.
Protect bandwidth resources because service flow 5 is reserved, therefore, at first search not idle bandwidth resources in the fault Member Link (Link1-1, Link1-2); Finding has the idle bandwidth of 10M resource among the Link1-1, enough carry service flow 5, then can carry out reversed process, service flow 5 is switched on the 10M idle bandwidth resource of Link1-1.
Reversed process finds that poll has been handled all service flow that the fault Member Link is carried after carrying out and finishing, and therefore upgrades and the current bandwidth information of this aggregated links that floods.As shown in table 2:
Table 2
Embodiment two, accept the scene of embodiment one, when member's link Link1-3 fault, and through embodiment one described processing after, the service flow situation that each Member Link carried of aggregated links Link1 is as shown in table 2.
At this moment, fault has also taken place in Member Link Link1-2:
At first search the service flow that Member Link Link1-2 is carried according to service flow priority, wherein, the priority of service flow 4 is higher than service flow 3, therefore at first handles service flow 4.
Service flow 4 has taken and has reserved the protection bandwidth resources in embodiment one, does not also have other reservation protection bandwidth resources, therefore; At the Member Link of fault not, be to search the idle bandwidth resource among the Link1-1; At this moment, there has not been the idle bandwidth resource in the aggregated links, therefore; According to service flow priority order from low to high; But in aggregated links, search the bandwidth-hogging resource: the priority of service flow 1, service flow 2 and service flow 5 is 2 to be lower than the priority of service flow 4 among the Member Link Link1-1, and the bandwidth that service flow 1, service flow 2 take is that 5M equals to serve 4 required bandwidth, and the bandwidth that service flow 5 takies is that 10M is greater than service 4 required bandwidth; Wherein, the granularity of service flow 1 is minimum.Wherein, the granularity of so-called service flow generally is meant the size of the shared resource of this service flow.Among this embodiment, therefore the granularity of service flow 1 and service flow 2 selects service flow 1 or 2 less than service flow 5; Under service flow 1 situation identical with the granularity of service flow 2; Selection between service flow 1 and the service flow 2 does not have strict restriction; Adopt the little service flow of the preferential service flow ID of selection under all conditions situation all of equal value in this embodiment of the invention, therefore selected service flow 1 here.Therefore, service flow 4 is seized the shared bandwidth resources of service flow 1.
After seizing execution, the information announcement that need service flow 1 be seized is to its Control Node/node, carries out next step protection action of service flow 1 by its Control Node/node, for example dynamic heavy-route etc.
After service flow 4 is finished dealing with, search the next one and need protect the service flow of processing, be service flow 3.
Because service flow 3 is not reserved the protection bandwidth resources; Therefore, at the Member Link of fault not, be to search the idle bandwidth resource among the Link1-1, at this moment; There has not been the idle bandwidth resource in the aggregated links; Therefore, according to service flow priority order from low to high, but in aggregated links, search the bandwidth-hogging resource: because the priority of service flow 4 is 1 to be higher than service flow 3 among the Member Link Link1-1; The priority of service flow 2 and service flow 5 is 2 to equal service flow 3, but does not therefore have the bandwidth-hogging resource.
Can judge that thus service flow 3 can't be in aggregated links be protected, immediately fault message is communicated to the Control Node/node of service flow 3, carry out next step protection action of service flow 3, for example dynamic heavy-route etc. by its Control Node/node.
Find that poll has been handled all service flow that the fault Member Link is carried, therefore upgrade and the current link bandwidth information that floods, as shown in table 3:
Table 3
Embodiment three, suppose that in the present embodiment the service flow situation that each Member Link carried of fault pre-polymerization link Link1 is as shown in table 3:
Table 4
Wherein, numerical priority value is more little, and priority is high more.
When member's link Link1-3 produces fault:
At first search service flow that Member Link Link1-3 carried, promptly need protect the service flow of processing according to service flow priority, wherein, the priority of service flow 4 is higher than service flow 5, therefore at first handles service flow 4.
Can know from table 4; Service flow 4 is not reserved the protection bandwidth resources, therefore not searching the idle bandwidth resource in the Member Link of fault (Link1-1, Link1-2), the idle bandwidth resource of 5M is arranged among the Member Link Link1-1; Enough carry service flow 4, carry out reversed process.
After reversed process runs succeeded, search the next one and need protect the service flow of processing, be service flow 5.
Because service flow 5 is not reserved the protection bandwidth resources, therefore, is not searching the idle bandwidth resource in the Member Link of fault (Link1-1, Link1-2); Because at this moment in the aggregated links; Do not had the idle bandwidth resource,, but in aggregated links, searched the bandwidth-hogging resource therefore according to priority order from low to high; The priority of service flow 1 and service flow 2 is 3 among the Member Link Link1-1, is lower than the priority of service flow 5; Service flow 1 shared bandwidth is 5M less than the required bandwidth of service flow 5, and the bandwidth that service flow 2 takies is that 10M equals the required bandwidth of service flow 5, and therefore, service flow 5 is seized the bandwidth resources that service flow 2 takies immediately.
After seizing execution, the information announcement that need service flow 2 be seized is to Control Node/node, carries out next step protection action of service flow 2 by Control Node/node, for example dynamic heavy-route etc.
Poll upgrades and the current bandwidth information of this aggregated links that floods after having handled all service flow that the fault Member Link carried, and is as shown in table 5:
Table 5
Embodiment four, suppose that in the present embodiment the service flow situation that each Member Link carried of fault pre-polymerization link Link1 is as shown in table 6:
Table 6
When member's link Link1-3 produces fault:
At first search service flow that Member Link Link1-3 carried, promptly need protect the service flow of processing according to service flow priority, Member Link Link1-3 has only carried service flow 4, therefore handles service flow 4.
Can know from table 6; Service flow 4 is not reserved the protection bandwidth resources, is not therefore searching the idle bandwidth resource in the Member Link of fault (Link1-1, Link1-2), because do not had enough idle bandwidth resource to be used to carry service flow 4 in the aggregated links this moment; Therefore according to priority order from low to high; But search the bandwidth-hogging resource,, but therefore also do not have the bandwidth-hogging resource because the priority of service flow 1, service flow 2, service flow 3, service flow 4 is equal.
Can confirm that thus service flow 4 can't be in aggregated links be protected, immediately fault message is communicated to the Control Node/node of service flow 4, carry out next step protection action, for example dynamic heavy-route etc.
Because bandwidth information does not change, the bandwidth information that therefore need not flood operation.
In order to realize above-mentioned alarm control method, the present invention also provides the ACU alarm control unit of the aggregated links in a kind of packet network, and is as shown in Figure 4, and this device comprises:
Analysis module when being used for aggregated links and breaking down, confirms whether there are spendable bandwidth resources in the aggregated links;
Protection module is used for when having spendable bandwidth resources in the aggregated links, the service flow that Member Link carried that breaks down in the aggregated links being switched on the spendable bandwidth resources;
Alarm module is used for when not having spendable bandwidth resources in the aggregated links, when perhaps switching failure in the protection module, the fault message of service flow is communicated to the Control Node of correspondence.
Particularly, analysis module is used for also confirming that service flow has the protection of reservation bandwidth resources;
Protection module also is used for when service flow has the protection of reservation bandwidth resources, service flow is switched to reserves on the protection bandwidth resources;
Accordingly, alarm module also is used for protection module and service flow is switched to reserves when failing on the protection bandwidth resources, and the fault message of service flow is communicated to corresponding Control Node.
Analysis module also is used for when service flow is not reserved the protection bandwidth resources, searching the idle bandwidth resource in the Member Link that in aggregated links, does not break down;
Protection module also is used for not reserving the protection bandwidth resources in service flow, when analysis module finds the idle bandwidth resource, service flow is switched on the idle bandwidth resource;
Accordingly, alarm module also is used for service flow being switched to when failing on the idle bandwidth resource at protection module, and the fault message of service flow is communicated to corresponding Control Node.
Analysis module, also be used for service flow do not reserve the protection bandwidth resources, when searching less than the idle bandwidth resource, but search the bandwidth-hogging resource in the Member Link that in aggregated links, does not break down;
Protection module, but also be used for not reserving the protection bandwidth resources in service flow, searching when finding the bandwidth-hogging resource less than idle bandwidth resource, analysis module, but service flow is switched on the bandwidth-hogging resource;
Accordingly, alarm module is switched to service flow when failing on the bandwidth-hogging resource but also be used for protection module, and the fault message of service flow is communicated to corresponding Control Node.
Alarm module, but also be used for when service flow is not reserved the protection bandwidth resources, searches less than the idle bandwidth resource and searched less than the bandwidth-hogging resource, the fault message of service flow being communicated to the Control Node of correspondence; But also be used for the bandwidth-hogging resource by the Control Node that is communicated to correspondence by preemption information of the service flow of carrying before seizing.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (14)
1. the aggregated links alarm control method in the packet network is characterized in that this method comprises:
When aggregated links breaks down, judge whether there are spendable bandwidth resources in the aggregated links;
Judge when having spendable bandwidth resources in the aggregated links, the service flow that Member Link carried that breaks down in the said aggregated links is switched on the said spendable bandwidth resources;
Judge when not having spendable bandwidth resources in the aggregated links, perhaps said when switching failure, the fault message of said service flow is communicated to corresponding Control Node.
2. according to the aggregated links alarm control method in the said packet network of claim 1, it is characterized in that, the service flow that Member Link carried that breaks down in the said aggregated links be switched on the said spendable bandwidth resources, specifically comprise:
Judge when said service flow has the protection of reservation bandwidth resources, said service flow is switched on the said reservation protection bandwidth resources;
Accordingly; When switching failure; The fault message of said service flow is communicated to corresponding Control Node, specifically comprises: said service flow is switched to when failing on the said reservation protection bandwidth resources, the fault message of said service flow is communicated to corresponding Control Node.
3. according to the aggregated links alarm control method in the said packet network of claim 2, it is characterized in that, the service flow that Member Link carried that breaks down in the said aggregated links be switched on the said spendable bandwidth resources, specifically comprise:
Judge when said service flow does not have said reservation to protect bandwidth resources, search the idle bandwidth resource in the Member Link that in aggregated links, does not break down, said service flow is switched on the said idle bandwidth resource;
Accordingly, switch when failure, the fault message of said service flow is communicated to corresponding Control Node, specifically comprise: said service flow is switched to when failing on the said idle bandwidth resource, the fault message of said service flow is communicated to corresponding Control Node.
4. according to the aggregated links alarm control method in the said packet network of claim 3, it is characterized in that, the service flow that Member Link carried that breaks down in the said aggregated links be switched on the said spendable bandwidth resources, specifically comprise:
Judge when said service flow does not have said reservation protection bandwidth resources and searches less than said idle bandwidth resource; But search the bandwidth-hogging resource in the Member Link that in aggregated links, does not break down, but said service flow is switched on the said bandwidth-hogging resource;
Accordingly; When switching failure; The fault message of said service flow is communicated to corresponding Control Node, specifically comprises: but said service flow is switched to when failing on the said bandwidth-hogging resource, the fault message of said service flow is communicated to corresponding Control Node.
5. according to the aggregated links alarm control method in the said packet network of claim 4, it is characterized in that, but when searching the bandwidth-hogging resource in the said Member Link that in aggregated links, does not break down, according to following principle:
The bandwidth resources that the minimum service flow of the priority that Member Link carried that selection is not broken down takies are seized; When said priority is identical, select the minimum shared bandwidth resources of service flow of granularity to seize;
But be lower than the priority of said service flow by the priority of the service flow of carrying before being seized with the bandwidth-hogging resource;
But be not less than the required bandwidth of said service flow with bandwidth-hogging.
6. according to the aggregated links alarm control method in the said packet network of claim 4, it is characterized in that, but after being switched to said service flow on the said bandwidth-hogging resource, this method also comprises:
But said bandwidth-hogging resource is seized the Control Node that is communicated to correspondence by preemption information of the service flow of carrying before.
7. according to the aggregated links alarm control method in claim 2, the 3 or 4 said packet networks; It is characterized in that; Judge when not having spendable bandwidth resources in the aggregated links, the fault message of said service flow be communicated to corresponding Control Node, specifically comprise:
Judge when but said service flow does not have said reservation protection bandwidth resources, searches less than said idle bandwidth resource and searches less than said bandwidth-hogging resource, the fault message of said service flow is communicated to corresponding Control Node.
8. according to the aggregated links alarm control method in the said packet network of claim 3, it is characterized in that, search the idle bandwidth resource in the Member Link that adopts load-balancing algorithm in said aggregated links, not break down.
9. according to the aggregated links alarm control method in the said packet network of claim 1, it is characterized in that when aggregated links broke down, this method also comprised:
When the Member Link that breaks down in the said aggregated links carries a plurality of service flow, according to the priority order said a plurality of service flow of poll successively of pin from high to low;
The service flow that is polled to is confirmed whether there are spendable bandwidth resources in the aggregated links.
10. the aggregated links ACU alarm control unit in the packet network is characterized in that this device comprises:
Analysis module when being used for aggregated links and breaking down, confirms whether there are spendable bandwidth resources in the aggregated links;
Protection module is used for when having spendable bandwidth resources in the aggregated links, and the service flow that Member Link carried that breaks down in the said aggregated links is switched on the said spendable bandwidth resources;
Alarm module is used for when not having spendable bandwidth resources in the aggregated links, when perhaps switching failure described in the protection module, the fault message of said service flow is communicated to the Control Node of correspondence.
11. the aggregated links ACU alarm control unit according in the said packet network of claim 10 is characterized in that,
Said analysis module is used for also confirming that said service flow has the protection of reservation bandwidth resources;
Said protection module also is used for when said service flow has the protection of reservation bandwidth resources, and said service flow is switched on the said reservation protection bandwidth resources;
Accordingly, said alarm module also is used for said protection module said service flow is switched to when failing on the said reservation protection bandwidth resources, and the fault message of said service flow is communicated to corresponding Control Node.
12. the aggregated links ACU alarm control unit according in the said packet network of claim 11 is characterized in that,
Said analysis module also is used for when said service flow does not have said reservation to protect bandwidth resources, searching the idle bandwidth resource in the Member Link that in aggregated links, does not break down;
Said protection module also is used for not having said reservation protection bandwidth resources in said service flow, when said analysis module finds the idle bandwidth resource, said service flow is switched on the said idle bandwidth resource;
Accordingly, said alarm module also is used for said service flow being switched to when failing on the said idle bandwidth resource at said protection module, and the fault message of said service flow is communicated to corresponding Control Node.
13. the aggregated links ACU alarm control unit according in the said packet network of claim 12 is characterized in that,
Said analysis module also is used for not having said reservation protection bandwidth resources in said service flow, when searching less than said idle bandwidth resource, but searches the bandwidth-hogging resource in the Member Link that in aggregated links, does not break down;
Said protection module, but also be used for not having said reservation protection bandwidth resources, searching less than said idle bandwidth resource, when said analysis module finds the bandwidth-hogging resource in said service flow, but said service flow is switched on the said bandwidth-hogging resource;
Accordingly, said alarm module is switched to said service flow when failing on the said bandwidth-hogging resource but also be used for said protection module, and the fault message of said service flow is communicated to corresponding Control Node.
14. the aggregated links ACU alarm control unit according in claim 11, the 12 or 13 said packet networks is characterized in that,
Said alarm module, but when also being used for not having said reservation protection bandwidth resources, searching and searching, the fault message of said service flow is communicated to corresponding Control Node less than said bandwidth-hogging resource less than said idle bandwidth resource in said service flow; But also be used for said bandwidth-hogging resource by the Control Node that is communicated to correspondence by preemption information of the service flow of carrying before seizing.
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| CN2010105427931A CN102468973A (en) | 2010-11-12 | 2010-11-12 | Alarm control method and device for aggregation link in packet switching network |
| PCT/CN2011/074929 WO2012062101A1 (en) | 2010-11-12 | 2011-05-30 | Method and apparatus for controlling aggregated link warnings in packet switching network |
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| CN2010105427931A CN102468973A (en) | 2010-11-12 | 2010-11-12 | Alarm control method and device for aggregation link in packet switching network |
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