CN104067539A

CN104067539A - Processing method and nodes supporting mixed grain business shared resources

Info

Publication number: CN104067539A
Application number: CN201480000379.4A
Authority: CN
Inventors: 郑好棉
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-04-29
Filing date: 2014-04-29
Publication date: 2014-09-24
Anticipated expiration: 2034-04-29
Also published as: WO2015165033A1; CN104067539B

Abstract

The embodiment of the invention relates to a processing method and nodes supporting mixed grain business shared resources. The method comprises the steps that when a high-order business working path protected by a high-order business protection path has a fault, an intermediate node located in the high-order business protection path receives a first message sent via a high-order business overhead from an upstream adjacent node which is also located in the high-order business protection path; according to the first message, the intermediate node determines whether the high-order business protection path is a usable path or not; when the high-order business protection path is a usable path, the intermediate node sends the first message via a low-order business overhead to a downstream adjacent node which is also located in the high-order business protection path; the intermediate node adapts a reception port with the downstream adjacent node to be of high-order grain; and when the intermediate node receives a second message sent from the downstream adjacent node via the high-order business overhead according to the first message, the intermediate node establishes an intersection.

Description

Support processing method and the node of combination grain business shared resource

Technical field

The present invention relates to communication technique field, relate in particular to a kind of processing method and node of supporting combination grain business shared resource.

Background technology

At present, in order to improve the bandwidth resources utilance of optical-fiber network, conventionally adopt and share netted protection (Shared Mesh Protection, abbreviation: the business that SMP) technology is user provides the service of transmission.SMP technology allows service protection path to be shared by many operating paths of path separation (that is, not requiring that many vocational work paths have identical initial, terminal node, are illustrated in fig. 1 shown below).

In prior art, for supporting the scene of combination grain business shared resource to be: in Fig. 1, node A is between node E being the first vocational work path W1, low-order service Optical Channel Data Unit-k (Optical channel Data Unit is supported in this first vocational work path, be called for short: ODU) ODUj, the first service protection path of its correspondence is node A-Node B-node C-node D-node E, low-order service is supported in this first service protection path, wherein, node A supports low-order service ODUj to Node B and node D to node E section path, high-order business ODUk is supported in Node B-node C-node D section path: node F is between node G being the second vocational work path W2, high-order business ODUk is supported in this second vocational work path, the second service protection path of its correspondence is node F-Node B-node C-node D-node G, wherein, high-order business ODUk (j is supported in node F-Node B-node C-node D-node G section path, the value of k can get 0, 1, 2, 3, 4, represent different ODU granularities, in prior art, give tacit consent to j<k).

When the operating path fault of business, each node need be switched the business of carrying on operating path to Protection path, and when operating path recovers normal, then by the business rollback carrying on Protection path to operating path.

But; point at one time in prior art; the same node that the Protection path of combination grain business shares can only be fitted to the business of Monosized powder;; under the scene of Fig. 1; Node B, node C and node D can only support the message of a certain granularity (ODUk or ODUj) expense to transmit, and cannot support the message of multiple granularity expense to transmit simultaneously, reduce the operating efficiency of intermediate node.

Summary of the invention

The embodiment of the present invention provides a kind of processing method and node of supporting combination grain business shared resource; solve the shared intermediate node of the Protection path of combination grain business in prior art and cannot support the message of multiple granularity expense to transmit simultaneously, reduced the problem of the operating efficiency of intermediate node.

In first aspect, the embodiment of the present invention provides a kind of reverse method of supporting combination grain business shared resource, and described method comprises:

When high-order vocational work path failure that described high-order service protection path is protected, the described intermediate node in described high-order service protection path receives and is in the first message that the upstream neighbor node in described high-order service protection path sends by high-order traffic overhead together;

According to described the first message, described intermediate node judges whether described high-order service protection path is available path;

When described high-order service protection path is available path, described intermediate node sends described the first message by low-order service expense to the downstream neighbor being in together in described high-order service protection path;

Described intermediate node is adapted for high-order granularity by the receiving port with described downstream neighbor;

When described intermediate node receives the second message that described downstream neighbor sends by described high-order traffic overhead according to described the first message, described intermediate node is set up and is intersected.

In the possible implementation of the first, described intermediate node also comprises before sending described the first message to being in downstream neighbor in described high-order service protection path together by low-order service expense:

When described high-order service protection path is available path, described intermediate node sends described the second message by described high-order traffic overhead to described upstream neighbor node, so that described upstream neighbor node is set up and intersected according to described the second message.

In the possible implementation of the second, described method also comprises:

When described intermediate node does not receive described second message of described downstream neighbor transmission, described intermediate node is adapted for low order granularity by the receiving port with described downstream neighbor, and described intermediate node sends described the first message by described low-order service expense to described downstream neighbor.

In second aspect, the embodiment of the present invention provides a kind of reverse method of supporting combination grain business shared resource, and described method comprises:

When high-order vocational work path failure that described high-order service protection path is protected, the described intermediate node in described high-order service protection path receives and is in the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense together;

Described intermediate node is adapted for high-order granularity by the receiving port with described upstream neighbor node and described downstream neighbor respectively;

In the possible implementation of the first, described intermediate node also comprises after respectively the receiving port with described upstream neighbor node and described downstream neighbor being adapted for to high-order granularity:

Described intermediate node sends described the second message by described high-order traffic overhead to described upstream neighbor node, so that described upstream neighbor node is set up and intersected according to described the second message.

In the possible implementation of the second, described method also comprises:

In the third aspect, the embodiment of the present invention provides a kind of reverse method of supporting combination grain business shared resource, and described method comprises:

When described high-order service protection path is available path, described intermediate node sends described the first message by high-order traffic overhead to the downstream neighbor being in together in described high-order service protection path;

Described intermediate node is adapted for high-order granularity by the receiving port with described upstream neighbor node;

In the possible implementation of the first, described intermediate node also comprises after the receiving port with described upstream neighbor node is adapted for to high-order granularity:

In the possible implementation of the second, described method also comprises:

When described intermediate node does not receive described second message of described downstream neighbor transmission, described intermediate node sends described the first message by described high-order traffic overhead to described downstream neighbor.

In fourth aspect, the embodiment of the present invention provides a kind of guard method of supporting combination grain business shared resource, and described method comprises:

When the high-order vocational work path protected when described high-order service protection path is normal, described intermediate node receives the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense;

Described intermediate node sends described the first message by described low-order service expense to the downstream neighbor in described high-order service protection path, and described the first message is for making each node in described high-order service protection path safeguard described high-order service protection path.

In the possible implementation of the first, before the first message that the upstream neighbor node of described intermediate node reception in described high-order service protection path sends by low-order service expense, also comprise:

When described high-order vocational work path is while being normal from fault recovery, described intermediate node receives the second message that the described upstream neighbor node in described high-order service protection path sends by high-order traffic overhead;

Described intermediate node sends described the second message by described high-order traffic overhead to the described downstream neighbor in described high-order service protection path;

Described intermediate node receives the 3rd message that described downstream neighbor sends by described high-order traffic overhead;

According to described the 3rd message, described intermediate node by and described downstream neighbor between the granularity in described high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and described downstream neighbor;

Described intermediate node sends described the 3rd message by described high-order traffic overhead to described upstream neighbor node; so that described upstream neighbor node is according to described the 3rd message; by and described intermediate node between the granularity in described high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and described intermediate node.

In conjunction with the possible implementation of the first of fourth aspect or fourth aspect; in the possible implementation of the second, described the first message comprises the granularity in described type of message, the sign in described high-order vocational work path, described high-order vocational work path and protects and switch required time slot after described high-order vocational work path failure.

Aspect the 5th, the embodiment of the present invention provides a kind of switching node of supporting combination grain business shared resource, and described switching node comprises:

Receiving element, for when described high-order service protection path, protect high-order vocational work path failure time, receive and to be in the first message that the upstream neighbor node in described high-order service protection path sends by high-order traffic overhead together;

Judging unit, for according to described the first message, judges whether described high-order service protection path is available path;

Transmitting element, for when described high-order service protection path is available path, sends described the first message by low-order service expense to the downstream neighbor being in together in described high-order service protection path;

Adaptation unit, for when described high-order service protection path is available path, is adapted for high-order granularity by the receiving port with described downstream neighbor;

Set up unit, when receiving the second message that described downstream neighbor sends by described high-order traffic overhead according to described the first message when described receiving element, set up and intersect.

In the possible implementation of the first; described transmitting element also for; when described high-order service protection path is available path; by low-order service expense to being in together before downstream neighbor in described high-order service protection path sends described the first message; by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

In the possible implementation of the second, described adaptation unit also for, when described receiving element does not receive described the second message that described downstream neighbor sends, the receiving port with described downstream neighbor is adapted for to low order granularity;

Described transmitting element also for, when described receiving element does not receive described the second message that described downstream neighbor sends, by described low-order service expense, to described downstream neighbor, send described the first message.

Aspect the 6th, the embodiment of the present invention provides a kind of switching node of supporting combination grain business shared resource, and described switching node comprises:

Receiving element, for when described high-order service protection path, protect high-order vocational work path failure time, receive and to be in the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense together;

Adaptation unit, for when described high-order service protection path is available path, is adapted for high-order granularity by the receiving port with described upstream neighbor node and described downstream neighbor respectively;

In the possible implementation of the first, described transmitting element also for, after described adaptation unit is adapted for high-order granularity by the receiving port with described upstream neighbor node and described downstream neighbor respectively, by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

Aspect the 7th, the embodiment of the present invention provides a kind of switching node of supporting combination grain business shared resource, and described switching node comprises:

Transmitting element, for when described high-order service protection path is available path, sends described the first message by high-order traffic overhead to the downstream neighbor being in together in described high-order service protection path;

Adaptation unit, for when described high-order service protection path is available path, is adapted for high-order granularity by the receiving port with described upstream neighbor node;

In the possible implementation of the first, described transmitting element also for, after described adaptation unit is adapted for high-order granularity by the receiving port with described upstream neighbor node, by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

In the possible implementation of the second, described transmitting element also for, when described receiving element does not receive described the second message that described downstream neighbor sends, by described high-order traffic overhead, to described downstream neighbor, send described the first message.

In eight aspect, the embodiment of the present invention provides a kind of protection node of supporting combination grain business shared resource, and described protection node comprises:

Receiving element, when normal for the high-order vocational work path protected when described high-order service protection path, receives the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense;

Transmitting element; for sending described the first message by described low-order service expense to the downstream neighbor in described high-order service protection path, described the first message is for making each node in described high-order service protection path safeguard described high-order service protection path.

In the possible implementation of the first, before the first message that the upstream neighbor node of described receiving element reception in described high-order service protection path sends by low-order service expense, described protection node also comprises:

Described receiving element also for, when described high-order vocational work path is while being normal from fault recovery, receive the second message that the described upstream neighbor node in described high-order service protection path sends by high-order traffic overhead;

Described transmitting element also for, by described high-order traffic overhead, to the described downstream neighbor in described high-order service protection path, send described the second message;

Described receiving element also for, receive the 3rd message that described downstream neighbor sends by described high-order traffic overhead;

The adaptive unit of removing, for according to described the 3rd message, by and described downstream neighbor between the granularity in described high-order service protection path be adapted for low-order service expense, and the intersecting of dismounting and described downstream neighbor foundation;

Described transmitting element also for; by described high-order traffic overhead, to described upstream neighbor node, send described the 3rd message; so that described upstream neighbor node is according to described the 3rd message; by and described protection node between the granularity in described high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and described protection node.

The possible implementation of the first in conjunction with eight aspect or eight aspect; in the possible implementation of the second, described the first message that described receiving element receives comprises the granularity in described type of message, the sign in described high-order vocational work path, described high-order vocational work path and protects and switch required time slot after described high-order vocational work path failure.

Aspect the 9th, the embodiment of the present invention provides a kind of switching node of supporting combination grain business shared resource, and described switching node comprises:

Processor;

Memory;

The application program of physical store in described memory, described application program comprises and can be used for making described processor to carry out the instruction of following process:

When high-order vocational work path failure that described high-order service protection path is protected, receive and be in the first message that the upstream neighbor node in described high-order service protection path sends by high-order traffic overhead together;

According to described the first message, judge whether described high-order service protection path is available path;

When described high-order service protection path is available path, by low-order service expense, to the downstream neighbor being in together in described high-order service protection path, send described the first message;

Receiving port with described downstream neighbor is adapted for to high-order traffic overhead;

When receiving the second message that described downstream neighbor sends by described high-order traffic overhead according to described the first message, set up and intersect.

In the possible implementation of the first, described application program also comprises and can be used for making described processor to carry out the instruction of following process:

When described high-order service protection path is available path; by low-order service expense to being in together before downstream neighbor in described high-order service protection path sends described the first message; by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

In the possible implementation of the second, described application program also comprises and can be used for making described processor to carry out the instruction of following process:

When not receiving described second message of described downstream neighbor transmission, the receiving port with described downstream neighbor is adapted for to low-order service expense, by described low-order service expense, to described downstream neighbor, send described the first message.

Aspect the tenth, the embodiment of the present invention provides a kind of switching node of supporting combination grain business shared resource, and described switching node comprises:

Processor;

Memory;

When high-order vocational work path failure that described high-order service protection path is protected, receive and be in the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense together;

Respectively the receiving port with described upstream neighbor node and described downstream neighbor is adapted for to high-order traffic overhead;

After respectively the receiving port with described upstream neighbor node and described downstream neighbor being adapted for to high-order granularity, by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

In the tenth one side, the embodiment of the present invention provides a kind of switching node of supporting combination grain business shared resource, and described switching node comprises:

Processor;

Memory;

When described high-order service protection path is available path, by high-order traffic overhead, to the downstream neighbor being in together in described high-order service protection path, send described the first message;

Receiving port with described upstream neighbor node is adapted for to high-order traffic overhead;

After receiving port with described upstream neighbor node is adapted for to high-order granularity, by described high-order granularity expense, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

When not receiving described second message of described downstream neighbor transmission, by described high-order traffic overhead, to described downstream neighbor, send described the first message.

Aspect the 12, the embodiment of the present invention provides a kind of protection node of supporting combination grain business shared resource, and described protection node comprises:

Processor;

Memory;

When the high-order vocational work path of protecting when described high-order service protection path is normal, receive the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense;

By described low-order service expense, to the downstream neighbor in described high-order service protection path, send described the first message, described the first message is for making each node in described high-order service protection path safeguard described high-order service protection path.

In the possible implementation of the first, before the first message that the upstream neighbor node of reception in described high-order service protection path sends by low-order service expense, when described high-order vocational work path is while being normal from fault recovery, receive the second message that the described upstream neighbor node in described high-order service protection path sends by high-order traffic overhead;

By described high-order traffic overhead, to the described downstream neighbor in described high-order service protection path, send described the second message;

Receive the 3rd message that described downstream neighbor sends by described high-order traffic overhead;

According to described the 3rd message, by and described downstream neighbor between the traffic overhead in described high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and described downstream neighbor;

By described high-order traffic overhead, to described upstream neighbor node, send described the 3rd message; so that described upstream neighbor node is according to described the 3rd message; by and described protection node between the traffic overhead in described high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and described protection node.

The possible implementation of the first in conjunction with the 12 aspect or the 12 aspect; in the possible implementation of the second, described the first message comprises the traffic overhead in described type of message, the sign in described high-order vocational work path, described high-order vocational work path and protects and switch required time slot after described high-order vocational work path failure.

Therefore; processing method and the node of the support combination grain business shared resource providing by the application embodiment of the present invention; when high-order vocational work path failure; intermediate node receives the first message that upstream neighbor node sends by high-order traffic overhead; when high-order service protection path is available; by low-order service expense downstream neighbor, send the first message; and the receiving port with downstream neighbor is adapted for to high-order traffic overhead; when receiving the second message that downstream neighbor sends by high-order traffic overhead, set up and intersect.Solved in prior art, the shared intermediate node of Protection path of combination grain business cannot support the message of multiple granularity expense to transmit simultaneously, reduces the problem of the operating efficiency of intermediate node.Processing method and the node of the support combination grain business shared resource that the embodiment of the present invention provides, overcome the limitation of prior art scheme, improved the operating efficiency of intermediate node.

Accompanying drawing explanation

Fig. 1 is the ODU SMP application scenarios of supporting in prior art that different grain size is shared;

The guard method flow chart of the support combination grain business shared resource that Fig. 2 provides for the embodiment of the present invention one;

The protection signaling diagram of the support combination grain business shared resource that Fig. 3 provides for the embodiment of the present invention;

The rollback signaling diagram of the support combination grain business shared resource that Fig. 4 provides for the embodiment of the present invention;

The reverse method flow chart of the support combination grain business shared resource that Fig. 5 provides for the embodiment of the present invention two;

The support combination grain business shared resource that Fig. 6 provides for the embodiment of the present invention switch signaling diagram;

The reverse method flow chart of the support combination grain business shared resource that Fig. 7 provides for the embodiment of the present invention three;

The reverse method flow chart of the support combination grain business shared resource that Fig. 8 provides for the embodiment of the present invention four;

The protection node structure schematic diagram of the support combination grain business shared resource that Fig. 9 provides for the embodiment of the present invention five;

The switching node structural representation of the support combination grain business shared resource that Figure 10 provides for the embodiment of the present invention six;

The switching node structural representation of the support combination grain business shared resource that Figure 11 provides for the embodiment of the present invention seven;

The switching node structural representation of the support combination grain business shared resource that Figure 12 provides for the embodiment of the present invention eight;

The protection node hardware structure schematic diagram of the support combination grain business shared resource that Figure 13 provides for the embodiment of the present invention nine;

The switching node hardware configuration schematic diagram of the support combination grain business shared resource that Figure 14 provides for the embodiment of the present invention ten;

The switching node hardware configuration schematic diagram of the support combination grain business shared resource that Figure 15 provides for the embodiment of the present invention 11;

The switching node hardware configuration schematic diagram of the support combination grain business shared resource that Figure 16 provides for the embodiment of the present invention 12.

Embodiment

Take below in prior art and support that the reversed process of combination grain business shared resource is example; point is at one time described in prior art; the same node that the Protection path of combination grain business shares can only be fitted to the business of Monosized powder;; under the scene of Fig. 1; Node B, node C and node D can only support the message of a certain granularity (ODUk or ODUj) expense to transmit; and cannot support the message of multiple granularity expense to transmit simultaneously, reduce the problem of the operating efficiency of intermediate node.

Detailed process is: node A detects after the first operating path fault; complete bridge joint (business that is about to carry on the first operating path is sent on the first Protection path); and pass through low-order service expense to Node B transmitted signal inefficacy (Signal Failure; be called for short: SF) message; after Node B receives; first by high-order traffic overhead, to node C, send adaptive message; node C replys acknowledge message and sets up with Node B the tie point that is suitable for low-order service expense simultaneously to Node B according to adaptive message, completes adaptation.Node B receives the confirmation after message, also sets up the tie point of applicable low-order service expense with node C simultaneously, completes adaptation, then, Node B is by low-order service expense to node C transmitted signal SF message, and in like manner, node C, node D are also similar with Node B implementation.So, SF message can transfer to node E from node A.Node E carries out bridge joint and selection according to SF message; and hop-by-hop returns to reverse request (ReverseRequest; be called for short: RR) message, each intermediate node is set up and is intersected, and node A completes choosing according to RR message and receives (i.e. reception business from the first Protection path).

Node F detects after the second operating path fault, complete bridge joint (business that is about to carry on the second operating path is sent on the second Protection path), and to Node B, send SF message (not shown in figure 1) by high-order traffic overhead, after Node B receives, by high-order traffic overhead, to node C, send SF message, node C sends SF message by high-order traffic overhead to node D, node D sends SF message by high-order traffic overhead to node G, node G carries out bridge joint and selection according to SF message, and hop-by-hop returns to RR message, each intermediate node is set up and is intersected, node F completes choosing according to RR message and receives (i.e. reception business from the second Protection path).

For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Understanding for ease of to the embodiment of the present invention, is further explained explanation below in conjunction with accompanying drawing with specific embodiment, and embodiment does not form the restriction to the embodiment of the present invention.

Embodiment mono-

The Fig. 2 of take below describes the guard method of the support combination grain business shared resource that the embodiment of the present invention one provides in detail as example; the guard method flow chart of the support combination grain business shared resource that Fig. 2 provides for the embodiment of the present invention one; subject of implementation is the intermediate node in service protection path in embodiments of the present invention; described service protection path is specially high-order service protection path or low-order service Protection path; and high-order service protection path and low-order service Protection path share a plurality of intermediate nodes, and each intermediate node is supported the processing of multiple granularity data.In OTN (Optical Transport Network, optical transfer network), multiple granularity data can be ODU0, ODU1, ODU2 etc.; In SDH (Synchronous DigitalHierarchy, SDH (Synchronous Digital Hierarchy)) network, multiple granularity data can be VC12 (VirtualContainer12, virtual container 12), VC3, VC4 etc.; At MPLS (Multi-Protocol LabelSwitching, multiprotocol label switching) network, multiple granularity data can be PW (Pseudo Wire, pseudo-line), LSP (Label Switched Path, label switched path) etc.

It is all normal that the guard method of the support combination grain business shared resource that the embodiment of the present invention provides is applied in optical transport network high-order vocational work path and low-order service operating path; or; high-order vocational work path is normal, but in the situation of low-order service operating path fault.As shown in Figure 2, this embodiment specifically comprises the following steps:

When step 210, the high-order vocational work path of protecting when described high-order service protection path are normal, described intermediate node receives the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense.

Particularly, when the high-order vocational work path protected when high-order service protection path is normal, intermediate node receives the first message that the upstream neighbor node in high-order service protection path sends by low-order service expense.

The first message is specially OAM (Operation Administration and Maintenance, oam) message.The guard method of the support combination grain business shared resource that the embodiment of the present invention provides is applied in optical transport network, and the first message can be specially APS (AutomaticProtection Switched, abbreviation: APS) message.Described APS message comprises a plurality of message kinds, and for example, (No Request, is called for short: NR) unsolicited message; (Revert, is called for short: RT) rollback message; Reverse request message (Reverse Request, be called for short: RR) etc.

First message of take below describes as APS message as example.

Further, low-order service is ODU1 in embodiments of the present invention; High-order business is ODU2.As shown in Figure 3, Fig. 3 is for supporting the protection signaling diagram of combination grain business shared resource, in Fig. 3, node A is between node E being low-order service operating path, low-order service expense is supported in low order vocational work path, granularity is ODU1, its corresponding low-order service Protection path is node A-Node B-node C-node D-node E, wherein, node A supports low-order service expense to Node B and node D to node E section path, granularity is ODU1, high-order traffic overhead is supported in Node B-node C-node D section path, granularity is ODU2: node F between node G for high-order vocational work path, high-order traffic overhead is supported in this high-order vocational work path, granularity is ODU2, its corresponding high-order service protection path is node F-Node B-node C-node D-node G, wherein, high-order traffic overhead is supported in node F-Node B-node C-node D-node G section path, granularity is ODU2.

Be understandable that, the granularity of described low-order service is less than the granularity of high-order business.

Wherein, node A, node E are the end node of low-order service Protection path, and in like manner, node F, node G are the end node in high-order service protection path; Node B, node C, node D are intermediate node, and all support multiple granularity; Node A, node F are respectively the upstream neighbor node of Node B on low-order service Protection path and high-order service protection path; node C is the downstream neighbor of Node B on low-order service Protection path and high-order service protection path, and the upstream and downstream node of other nodes repeats no more.Upstream be on path destination node to source node direction, downstream be on path source node to destination node direction.

Further, take in embodiments of the present invention high-order vocational work path and low-order service operating path is normally as example describes, in first example, when intermediate node is Node B, the first message that Node B while receiving node A and node F send by low-order service expense, that is to say the first message that Node B receiving node A sends, the first message that receiving node F sends.

In second example, when intermediate node is node C, two the first message that node C receiving node B sends by low-order service expense.

In the 3rd example, when intermediate node is node D, two the first message that node D receiving node C sends by low-order service expense.

The first message receiving when Node B is node A while sending, and described the first message comprises the sign of type of message, low-order service operating path, the granularity of low-order service operating path and protect and switch required time slot after low-order service operating path fault.

It should be noted that; the first message comprises overhead part and data division, and wherein overhead part comprises the sign of type of message, low-order service operating path, the granularity of low-order service operating path and protect and switch required time slot after low-order service operating path fault.Described type of message is specially unsolicited type of message, and in other words, the first message is specially NR message; Described low-order service operating path be designated W1; The business granularity of described low-order service operating path is ODU1; After described low-order service operating path fault, protecting and switching required time slot is TS#1～TS#2.

The first message receiving when Node B is node F while sending, and described the first message comprises the sign in type of message, high-order vocational work path, the granularity in high-order vocational work path and protect and switch required time slot after high-order vocational work path failure.

It should be noted that; the first message comprises overhead part and data division, and wherein overhead part comprises the sign in type of message, high-order vocational work path, the granularity in high-order vocational work path and protect and switch required time slot after high-order vocational work path failure.Described type of message is specially unsolicited type of message, and in other words, the first message is specially NR message; Described high-order vocational work path be designated W2; The business granularity in described high-order vocational work path is ODU2; After described high-order vocational work path failure, protecting and switching required time slot is TS#1～TS#8.

Step 220, described intermediate node send described the first message by described low-order service expense to the downstream neighbor in described high-order service protection path, and described the first message is for making each node in described high-order service protection path safeguard described high-order service protection path.

Particularly; intermediate node receives after the first message that upstream neighbor node sends by low-order service expense; intermediate node also sends the first message by low-order service expense to the downstream neighbor in high-order service protection path, and described the first message is for making each node in high-order service protection path safeguard high-order service protection path.

Further, example as the aforementioned, when intermediate node is Node B, Node B sends two the first message by low-order service expense to node C.

When intermediate node is node C, node C sends two the first message by low-order service expense to node D.

When intermediate node is node D, node D sends the first message to node G and node E respectively by low-order service expense.

Each node in service protection path all receives and belongs to first message in service protection path separately; according to the first message, affiliated path is safeguarded; and; high-order, low-order service Protection path all send the first message by low-order service expense; and then solved in prior art; in the normal situation of operating path, intermediate node simultaneously on supportive protection path the message of multiple granularity expense transmit, cause the problem of the Protection path of perception in time fault.

It should be noted that, in aforesaid example, the first message that intermediate node receives is initiated maintenance by the source node in service protection path, and in actual applications, intermediate node also can receive the first message being sent by egress node, by egress node, is initiated to safeguard.

In embodiments of the present invention, when being initiated to safeguard by egress node, the maintenance process that intermediate node is carried out as hereinbefore, is no longer repeated at this.The business of above-mentioned operating path and Protection path carrying can be one way traffic, can be also two-way services.

Normal when high-order vocational work path, but in the situation of low-order service operating path fault, the process that intermediate node is safeguarded high-order service protection path as hereinbefore, is no longer repeated at this.

Alternatively, also comprise before embodiment of the present invention step 210 when vocational work path reverts to normal route from failure path, intermediate node is the step to vocational work path by the business rollback of service protection path carrying.By this step; it is low-order service expense that intermediate node keeps the traffic overhead of low-order service Protection path; by the adaptive low-order service expense of returning of the traffic overhead in high-order service protection path; so that intermediate node is when safeguarding high-order service protection path; use low-order service expense to send the first message, and low-order service Protection path is still used low-order service expense to send the first message.Concrete steps are as follows:

According to described the 3rd message, described intermediate node by and described downstream neighbor between the granularity expense in described high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and described downstream neighbor;

Particularly, when high-order vocational work path reverts to normal route from failure path, intermediate node receives the second message that the upstream neighbor node in high-order service protection path sends by high-order traffic overhead; Intermediate node sends the second message by high-order traffic overhead to the downstream neighbor in high-order service protection path, and described the second message is used for making each intermediate node to determine that high-order vocational work path is normal route; Intermediate node receives the 3rd message that downstream neighbor sends by high-order traffic overhead; According to the 3rd message, intermediate node by and downstream neighbor between the granularity in high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and downstream neighbor; Intermediate node is by upstream adjacent node transmission of high-order traffic overhead the 3rd message; so that upstream neighbor node is according to the 3rd message; by and intermediate node between the granularity in high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and intermediate node.

Further, as shown in Figure 4, Fig. 4 is for supporting the rollback signaling diagram of combination grain business shared resource.In Fig. 4, the granularity in each node, path is identical with the figure shown in Fig. 3, at this, no longer repeats.

Wherein, it is low-order service expense that each intermediate node keeps the granularity of low-order service Protection path, by the business rollback carrying on low-order service Protection path to low-order service operating path, is prior art, again no longer repeats.

The business rollback carrying on high-order service protection path of take below describes to high-order vocational work path as example.

In an example, node F detects high-order vocational work path failure and eliminates, and while replying as normal route, node F sends the second message by high-order traffic overhead to Node B, Node B also sends the second message by high-order traffic overhead to node C, by that analogy, until node D sends the second message by high-order traffic overhead to node G, node G determines that according to the second message high-order vocational work path is normal route, node G sends the 3rd message by high-order traffic overhead to node D, node D according to the 3rd message by and node G between the granularity in high-order service protection path be adapted for low-order service expense, and dismounting and intersecting that node G sets up, node D sends the 3rd message by high-order traffic overhead to node C, in like manner, node C by and node D between the granularity in high-order service protection path be adapted for low-order service expense, and dismounting and intersecting that node D sets up, in like manner, Node B, node F by and downstream neighbor between the granularity in high-order service protection path be adapted for low-order service expense, and dismounting and intersecting that downstream neighbor is set up, and then the granularity of intermediate node maintenance low-order service Protection path is low-order service expense, by the granularity rollback in high-order service protection path to low-order service expense, so that intermediate node is when safeguarding high-order service protection path, use low-order service expense to send APS message, and low-order service Protection path is still used low-order service expense to send APS message.

It should be noted that, described second, third message comprises overhead part and data division, and wherein overhead part comprises the sign in type of message, high-order vocational work path.Described type of message is specially rollback type of message, and (Revert, is called for short: RT) or be reverse request type of message (Reverse Request, abbreviation: RR), in other words, the second message is specially RT message, and the 3rd message is specially RR message; Described high-order vocational work path be designated W2.

Therefore; the guard method of the support combination grain business shared resource providing by the application embodiment of the present invention; when high-order vocational work path is normal; intermediate node receives the first message that the upstream neighbor node in high-order service protection path sends by low-order service expense; and this first message is sent to the downstream neighbor in high-order service protection path, so that each intermediate node in high-order service protection path is safeguarded high-order service protection path.Solved in prior art, in the normal situation of operating path, intermediate node simultaneously on supportive protection path the message of multiple granularity expense transmit, cause the problem of the Protection path of perception in time fault.The guard method of the support combination grain business shared resource that the embodiment of the present invention provides, has overcome the limitation of prior art scheme, has improved the operating efficiency of intermediate node.

Embodiment bis-

The Fig. 5 of take below describes the reverse method of the support combination grain business shared resource that the embodiment of the present invention two provides in detail as example; the reverse method flow chart of the support combination grain business shared resource that Fig. 5 provides for the embodiment of the present invention two; subject of implementation is the intermediate node in service protection path in embodiments of the present invention; described service protection path is specially high-order service protection path or low-order service Protection path; and high-order service protection path and low-order service Protection path share a plurality of intermediate nodes, and each intermediate node is supported the processing of multiple granularity service.

The reverse method of the support combination grain business shared resource that the embodiment of the present invention provides is applied in situation that in optical network system, high-order vocational work path is failure path.As shown in Figure 5, this embodiment specifically comprises the following steps:

Step 510, when high-order vocational work path failure that described high-order service protection path is protected, the described intermediate node in described high-order service protection path receives and is in the first message that the upstream neighbor node in described high-order service protection path sends by high-order traffic overhead together.

Particularly; when high-order vocational work path failure that high-order service protection path is protected, the intermediate node in high-order service protection path receives and is in the first message that the upstream neighbor node in high-order service protection path sends by high-order traffic overhead together.

Described the first message comprises overhead part and data division, and wherein overhead part comprises the sign in type of message, high-order vocational work path, the granularity in high-order vocational work path and protect and switch required time slot after high-order vocational work path failure.Described type of message is specially Signal Fail type of message, and in other words, the first message is specially SF message; Described high-order vocational work path be designated W2; The business granularity in described high-order vocational work path is ODU2; After described high-order vocational work path failure, protecting and switching required time slot is TS#1～TS#8.

Be understandable that, low-order service operating path be designated W1, the business granularity of low-order service operating path is ODU1.

Further, as shown in Figure 6, the support combination grain business shared resource that Fig. 6 provides for the embodiment of the present invention switch signaling diagram.In Fig. 6, the granularity in each node, path is identical with the figure shown in Fig. 3, at this, no longer repeats.

In an example, described intermediate node is specially Node B, and the upstream neighbor node of Node B is node F, and downstream neighbor is node C.Node F detects the vocational work path failure between itself and node G, and node F initiates reversed process, by high-order granularity expense, to Node B, sends SF message.Node B receives SF message.

Step 520, according to described the first message, described intermediate node judges whether described high-order service protection path is available path.

Particularly, according to the first message, intermediate node judges whether high-order service protection path is available path.

Further, example as the aforementioned, the sign that Node B comprises according to SF message, determines the high-order service protection path (node F-Node B-node C-node D-node G) corresponding with high-order vocational work path.Node B judges whether this high-order service protection path is available path.Whether described available path is specially high-order service protection path is normal route, or whether the bandwidth in high-order service protection path is not shared by other business.

Step 530, when described high-order service protection path is available path, described intermediate node sends described the first message by low-order service expense to the downstream neighbor being in together in described high-order service protection path.

Particularly, when high-order service protection path is available path, intermediate node sends the first message by low-order service expense to the downstream neighbor being in together in high-order service protection path.

Further, example as the aforementioned, after Node B judgement high-order service protection path is available path, Node B sends SF message by low-order service expense to node C.

Step 540, described intermediate node are adapted for high-order granularity by the receiving port with described downstream neighbor.

Particularly, intermediate node downstream neighbor sends after the first message, and the receiving port with downstream neighbor is adapted for to high-order granularity so that after in downstream neighbor by high-order traffic overhead messaging.

Further, example as the aforementioned, Node B sends after SF message to node C, and the receiving port with node C is adapted for to high-order granularity.

Step 550, when described intermediate node receives the second message that described downstream neighbor sends by described high-order traffic overhead according to described the first message, described intermediate node is set up and is intersected.

Particularly, for example, when within the default time, (, 5s), when intermediate node receives the second message that downstream neighbor sends by high-order traffic overhead according to the first message, intermediate node is set up and intersected.

It should be noted that, when low-order service operating path fault, node A initiates to switch, and each node on low-order service Protection path can directly be used low-order service expense to send SF message, and carrying out reversed process is prior art, again no longer repeats.

In embodiments of the present invention, for example, when the source node in high-order vocational work path and egress node (, node F and node G) initiate to switch simultaneously, the reversed process that Node B is carried out as hereinbefore, is no longer repeated at this.

Because intermediate node downstream neighbor sends after SF message, receiving port with downstream neighbor is carried out to adaptation, and when receiving the RR message of downstream neighbor transmission, set up and intersect, and then shortening switching time, the operating efficiency of raising intermediate node, simultaneously, each intermediate node can receive the message of multiple granularity expense simultaneously, has also solved the problem that cannot simultaneously support that the message of multiple granularity expense is transmitted.

Described the second message comprises overhead part and data division, and wherein overhead part comprises the sign in type of message, high-order vocational work path, the granularity in high-order vocational work path and protect and switch required time slot after high-order vocational work path failure.Described type of message is specially reverse request type of message, and in other words, the second message is specially RR message; Described high-order vocational work path be designated W2; The business granularity in described high-order vocational work path is ODU2; After described high-order vocational work path failure, protecting and switching required time slot is TS#1～TS#8.

Further, example as the aforementioned, when Node B receives the RR message that node C sends by high-order business according to SF message, Node B is set up and is intersected.

Alternatively, before embodiment of the present invention step 530, also comprise intermediate node pass through high-order traffic overhead upstream adjacent node send the step of the second message, by this step, can make upstream neighbor node set up and intersect according to the second message, and then shortening switching time, the operating efficiency of raising node, simultaneously, each node can receive the message of multiple granularity expense simultaneously, has also solved the problem that cannot simultaneously support that the message of multiple granularity expense is transmitted.Concrete steps are as follows:

Particularly, example as the aforementioned, when high-order service protection path is available path, Node B sends RR message by high-order traffic overhead to node F, so that node F sets up and intersects according to RR message.

Alternatively, also comprise in embodiments of the present invention when intermediate node does not receive the second message of downstream neighbor transmission, intermediate node is adapted for low order granularity by the receiving port with downstream neighbor, and by low-order service expense downstream neighbor, again send the step of the first message, and then again carry out adaptation, set up and intersect.Concrete steps are as follows:

When described intermediate node does not receive described second message of described downstream neighbor transmission, described intermediate node is adapted for low order granularity by the receiving port with described downstream neighbor;

Described intermediate node sends described the first message by described low-order service expense to described downstream neighbor.

Particularly, when within the default time (for example, 5s), when intermediate node does not receive the second message of downstream neighbor transmission, intermediate node is determined and the not adaptive success of downstream neighbor, intermediate node is cancelled last time the adaptation with the receiving port of downstream neighbor, that is to say, intermediate node is adapted for low order granularity by the receiving port with downstream neighbor; Intermediate node sends the first message by low-order service expense downstream neighbor again, and then again carries out adaptation with downstream neighbor, sets up and intersects.

Example as the aforementioned, when Node B does not receive the RR message of node C transmission, Node B is adapted for low order granularity by the receiving port with node C, and Node B sends SF message by low-order service expense to node C again, and then again carry out adaptation with node C, set up and intersect.

Therefore; the reverse method of the support combination grain business shared resource providing by the application embodiment of the present invention; when high-order vocational work path failure; intermediate node receives the first message that upstream neighbor node sends by high-order traffic overhead; when high-order service protection path is available; by low-order service expense downstream neighbor, send the first message; and the receiving port with downstream neighbor is adapted for to high-order granularity; when receiving the second message that downstream neighbor sends by high-order traffic overhead, set up and intersect.Solved in prior art, intermediate node cannot support the message of multiple granularity expense to transmit simultaneously, reduces the problem of the operating efficiency of intermediate node.The reverse method of the support combination grain business shared resource that the embodiment of the present invention provides, has improved the operating efficiency of intermediate node.

Embodiment tri-

The Fig. 7 of take below describes the reverse method of the support combination grain business shared resource that the embodiment of the present invention three provides in detail as example; the reverse method flow chart of the support combination grain business shared resource that Fig. 7 provides for the embodiment of the present invention three; subject of implementation is the intermediate node in service protection path in embodiments of the present invention; described service protection path is specially high-order service protection path or low-order service Protection path; and high-order service protection path and low-order service Protection path share a plurality of intermediate nodes, and each intermediate node is supported the processing of multiple granularity service.

The reverse method of the support combination grain business shared resource that the embodiment of the present invention provides is applied in situation that in optical network system, high-order vocational work path is failure path.As shown in Figure 7, this embodiment specifically comprises the following steps:

Step 710, when high-order vocational work path failure that described high-order service protection path is protected, the described intermediate node in described high-order service protection path receives and is in the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense together.

Particularly; when high-order vocational work path failure that high-order service protection path is protected, the intermediate node in high-order service protection path receives and is in the first message that the upstream neighbor node in high-order service protection path sends by low-order service expense together.

In embodiments of the present invention, described the first message is identical with disclosed the first message in previous embodiment two, at this, no longer repeats.

Further, as shown in Figure 6, in Fig. 6, the granularity in each node, path is identical with the figure shown in Fig. 3, at this, no longer repeats.

In an example, described intermediate node is specially node C, and the upstream neighbor node of node C is Node B, and downstream neighbor is node D.Node F detects the high-order vocational work path failure between itself and node G, and node F initiates reversed process, by high-order traffic overhead, to Node B, sends SF message.Node B sends SF message by low-order service expense to node C, and node C receives SF message.

Step 720, according to described the first message, described intermediate node judges whether described high-order service protection path is available path.

Further, example as the aforementioned, the sign that node C comprises according to SF message, determines the high-order service protection path (node F-Node B-node C-node D-node G) corresponding with high-order vocational work path.Node C judges whether this high-order service protection path is available path.Whether described available path is specially high-order service protection path is normal route, or whether the bandwidth in high-order service protection path is not shared by other business.

Step 730, when described high-order service protection path is available path, described intermediate node sends described the first message by low-order service expense to the downstream neighbor being in together in described high-order service protection path.

Further, example as the aforementioned, after node C judgement high-order service protection path is available path, node C sends SF message by low-order service expense to node D.

Step 740, described intermediate node are adapted for high-order granularity by the receiving port with described upstream neighbor node and described downstream neighbor respectively.

Particularly, intermediate node downstream neighbor sends after the first message, respectively the receiving port with upstream neighbor node and downstream neighbor is adapted for to high-order granularity so that after in upstream neighbor node and downstream neighbor by high-order traffic overhead messaging.

Further, example as the aforementioned, node C sends after SF message to node D, will be adapted for high-order granularity with the receiving port of Node B and node D.

Step 750, when described intermediate node receives the second message that described downstream neighbor sends by described high-order traffic overhead according to described the first message, described intermediate node is set up and is intersected.

Because intermediate node downstream neighbor sends after SF message, to carry out adaptation with the receiving port of upstream neighbor node and downstream neighbor respectively, and when receiving the RR message of downstream neighbor transmission, set up and intersect, and then shortening switching time, the operating efficiency of raising intermediate node, simultaneously, each intermediate node can receive the message of multiple granularity expense simultaneously, has also solved the problem that cannot simultaneously support that the message of multiple granularity expense is transmitted.

In embodiments of the present invention, described the second message is identical with disclosed the second message in embodiment bis-, at this, no longer repeats.

Further, example as the aforementioned, when node C receives the RR message that node D sends by high-order business according to SF message, node C sets up intersection.

Alternatively, after embodiment of the present invention step 740, also comprise intermediate node pass through high-order traffic overhead upstream adjacent node send the step of the second message, by this step, can make upstream neighbor node set up and intersect according to the second message, and then shortening switching time, the operating efficiency of raising node, simultaneously, each node can receive the message of multiple granularity expense simultaneously, has also solved the problem that cannot simultaneously support that the message of multiple granularity expense is transmitted.Concrete steps are as follows:

Particularly, intermediate node is adapted for the receiving port with upstream neighbor node and downstream neighbor after high-order granularity respectively, intermediate node by high-order traffic overhead upstream adjacent node send the second message so that upstream neighbor node set up to be intersected according to the second message.

Example as the aforementioned, node C is adapted for the receiving port with Node B and node D after high-order granularity, and node C sends RR message by high-order traffic overhead to Node B, so that Node B is set up and intersected according to RR message.

Example as the aforementioned, when node C does not receive the RR message of node D transmission, node C is adapted for low order granularity by the receiving port with node D, and node C sends SF message by low-order service expense to node D again, and then again carry out adaptation with node D, set up and intersect.

Therefore; the reverse method of the support combination grain business shared resource providing by the application embodiment of the present invention; when high-order vocational work path failure; intermediate node receives the first message that upstream neighbor node sends by low-order service expense; when high-order service protection path is available; by low-order service expense downstream neighbor, send the first message; and the receiving port with downstream neighbor is adapted for to high-order granularity; when receiving the second message that downstream neighbor sends by high-order traffic overhead, set up and intersect.Solved in prior art, intermediate node cannot support the message of multiple granularity expense to transmit simultaneously, reduces the problem of the operating efficiency of intermediate node.Processing method and the processing node of the support combination grain business shared resource that the embodiment of the present invention provides, improved the operating efficiency of intermediate node.

Embodiment tetra-

The Fig. 8 of take below describes the reverse method of the support combination grain business shared resource that the embodiment of the present invention four provides in detail as example; the reverse method flow chart of the support combination grain business shared resource that Fig. 8 provides for the embodiment of the present invention four; subject of implementation is the intermediate node in service protection path in embodiments of the present invention; described service protection path is specially high-order service protection path or low-order service Protection path; and high-order service protection path and low-order service Protection path share a plurality of intermediate nodes, and each intermediate node is supported the processing of multiple granularity service.

The reverse method of the support combination grain business shared resource that the embodiment of the present invention provides is applied in situation that in optical network system, high-order vocational work path is failure path.As shown in Figure 8, this embodiment specifically comprises the following steps:

Step 810, when high-order vocational work path failure that described high-order service protection path is protected, the described intermediate node in described high-order service protection path receives and is in the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense together.

In embodiments of the present invention, described the first message is identical with disclosed the first message in previous embodiment two, embodiment tri-, at this, no longer repeats.

In an example, described intermediate node is specially node D, and the upstream neighbor node of node D is node C, and downstream neighbor is node G.Node F detects the high-order vocational work path failure between itself and node G, and node F initiates reversed process, by high-order traffic overhead, to Node B, sends SF message.Node B sends SF message by low-order service expense to node C, and node C sends SF message by low-order service expense to node D, and node D receives SF message.

Step 820, according to described the first message, described intermediate node judges whether described high-order service protection path is available path.

Further, example as the aforementioned, the sign that node D comprises according to SF message, determines the high-order service protection path (node F-Node B-node C-node D-node G) corresponding with high-order vocational work path.Node D judges whether this high-order service protection path is available path.Whether described available path is specially high-order service protection path is normal route, or whether the bandwidth in high-order service protection path is not shared by other business.

Step 830, when described high-order service protection path is available path, described intermediate node sends described the first message by high-order traffic overhead to the downstream neighbor being in together in described high-order service protection path.

Particularly, when high-order service protection path is available path, intermediate node sends the first message by high-order traffic overhead to the downstream neighbor being in together in high-order service protection path.

Further, example as the aforementioned, after node D judgement high-order service protection path is available path, node D sends SF message by high-order traffic overhead to node D.

Be understandable that, node D supports high-order traffic overhead to node G section path.

Step 840, described intermediate node are adapted for high-order granularity by the receiving port with described upstream neighbor node.

Particularly, intermediate node downstream neighbor sends after the first message, and the receiving port with upstream neighbor node is adapted for to high-order granularity so that after in upstream neighbor node by high-order traffic overhead messaging.

Further, example as the aforementioned, node D sends after SF message to node G, will be adapted for high-order granularity with the receiving port of node C and node D.

Step 850, when described intermediate node receives the second message that described downstream neighbor sends by described high-order traffic overhead according to described the first message, described intermediate node is set up and is intersected.

Because intermediate node downstream neighbor sends after SF message, receiving port with upstream neighbor node is carried out to adaptation, and when receiving the RR message of downstream neighbor transmission, set up and intersect, and then shortening switching time, the operating efficiency of raising intermediate node, simultaneously, each intermediate node can receive the message of multiple granularity expense simultaneously, has also solved the problem that cannot simultaneously support that the message of multiple granularity expense is transmitted.

In embodiments of the present invention, described the second message is identical with disclosed the second message in embodiment bis-, embodiment tri-, at this, no longer repeats.

Further, example as the aforementioned, when node D receives the RR message that node G sends by high-order business according to SF message, node D sets up intersection.

Alternatively, after embodiment of the present invention step 840, also comprise intermediate node pass through high-order traffic overhead upstream adjacent node send the step of the second message, by this step, can make upstream neighbor node set up and intersect according to the second message, and then shortening switching time, the operating efficiency of raising node, simultaneously, each node can receive the message of multiple granularity expense simultaneously, has also solved the problem that cannot simultaneously support that the message of multiple granularity expense is transmitted.Concrete steps are as follows:

Particularly, intermediate node is adapted for the receiving port with upstream neighbor node after high-order granularity, intermediate node by high-order traffic overhead upstream adjacent node send the second message so that upstream neighbor node set up to be intersected according to the second message.

Example as the aforementioned, node D is adapted for the receiving port with node C after high-order granularity, and node D sends RR message by high-order traffic overhead to node C, so that node C sets up and intersects according to RR message.

Alternatively, also comprise that in embodiments of the present invention when intermediate node does not receive the second message of downstream neighbor transmission, intermediate node sends the step of the first message again by low-order service expense downstream neighbor, and then again set up and intersect.Concrete steps are as follows:

Particularly, when within the default time (for example, 5s), when intermediate node does not receive the second message of downstream neighbor transmission, intermediate node is determined and the not adaptive success of downstream neighbor, intermediate node sends the first message by low-order service expense downstream neighbor again, and then again sets up and intersect.

Example as the aforementioned, when node D does not receive the RR message that node G sends, node D sends SF message by low-order service expense to node G again, and then again sets up and intersect.

Therefore; the reverse method of the support combination grain business shared resource providing by the application embodiment of the present invention; when high-order vocational work path failure; intermediate node receives the first message that upstream neighbor node sends by low-order service expense; when high-order service protection path is available; by high-order traffic overhead downstream neighbor, send the first message; and the receiving port with downstream neighbor is adapted for to high-order granularity; when receiving the second message that downstream neighbor sends by high-order business, set up and intersect.Solved in prior art, intermediate node cannot support the message of multiple granularity expense to transmit simultaneously, reduces the problem of the operating efficiency of intermediate node.Processing method and the processing node of the support combination grain business shared resource that the embodiment of the present invention provides, improved the operating efficiency of intermediate node.

Further; when signaling diagram is as shown in Figure 6 high-order vocational work path failure; the process that each node on high-order service protection path is switched; the process that each intermediate node in signaling diagram shown in Fig. 6 all can be described according to previous embodiment two, embodiment tri-, embodiment tetra-is carried out, and at this, no longer repeats.

Embodiment five

Correspondingly; the embodiment of the present invention five also provides a kind of protection node of supporting combination grain business shared resource; in order to realize the guard method of the support combination grain business shared resource that previous embodiment one provides; high-order service protection path and low-order service Protection path share a plurality of described protection nodes; and described in each, protect node to support the processing of multiple granularity service; as shown in Figure 9, described protection node comprises: receiving element 910 and transmitting element 920.

The receiving element 910 that described protection node comprises, when normal for the high-order vocational work path protected when described high-order service protection path, the first message that the upstream neighbor node of reception in described high-order service protection path sends by low-order service expense;

Transmitting element 920; for sending described the first message by described low-order service expense to the downstream neighbor in described high-order service protection path, described the first message is for making each node in described high-order service protection path safeguard described high-order service protection path.

Further, before the first message that the upstream neighbor node of described receiving element reception in described high-order service protection path sends by low-order service expense, described protection node also comprises:

Described receiving element 910 also for, when described high-order vocational work path is while being normal from fault recovery, receive the second message that the described upstream neighbor node in described high-order service protection path sends by high-order traffic overhead;

Described transmitting element 920 also for, by described high-order traffic overhead, to the described downstream neighbor in described high-order service protection path, send described the second message;

Described receiving element 910 also for, receive the 3rd message that described downstream neighbor sends by described high-order traffic overhead;

The adaptive unit 930 of removing, for according to described the 3rd message, by and described downstream neighbor between the granularity in described high-order service protection path be adapted for low-order service expense, and the intersecting of dismounting and described downstream neighbor foundation;

Described transmitting element 920 also for; by described high-order traffic overhead, to described upstream neighbor node, send described the 3rd message; so that described upstream neighbor node is according to described the 3rd message; by and described protection node between the granularity in described high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and described protection node.

Described the first message that described receiving element 910 receives comprises the granularity in described type of message, the sign in described high-order vocational work path, described high-order vocational work path and protects and switch required time slot after described high-order vocational work path failure.

Therefore; the protection node of the support combination grain shared resource providing by the application embodiment of the present invention; when high-order vocational work path is normal; protection node receives the first message that the upstream neighbor node in high-order service protection path sends by low-order service expense; and this first message is sent to the downstream neighbor in high-order service protection path, so that each node in high-order service protection path is safeguarded high-order service protection path.Solved in prior art, in the normal situation of operating path, protection node simultaneously on supportive protection path the message of multiple granularity expense transmit, cause the problem of the Protection path of perception in time fault.The protection node of the support combination grain business shared resource that the embodiment of the present invention provides, has overcome the limitation of prior art scheme, has improved the operating efficiency of intermediate node.

Embodiment six

Correspondingly; the embodiment of the present invention six also provides a kind of switching node of supporting combination grain business shared resource; in order to realize the reverse method of the support combination grain business shared resource that previous embodiment two provides; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported the processing of multiple granularity service; as shown in figure 10, described switching node comprises: receiving element 1010, judging unit 1020, transmitting element 1030, adaptation unit 1040 and set up unit 1050.

The receiving element 1010 that described switching node comprises, for when the high-order vocational work path failure that described high-order service protection path is protected, reception is in the first message that the upstream neighbor node in described high-order service protection path sends by high-order traffic overhead together;

Judging unit 1020, for according to described the first message, judges whether described high-order service protection path is available path;

Transmitting element 1030, for when described high-order service protection path is available path, sends described the first message by low-order service expense to the downstream neighbor being in together in described high-order service protection path;

Adaptation unit 1040, for when described high-order service protection path is available path, is adapted for high-order granularity by the receiving port with described downstream neighbor;

Set up unit 1050, when receiving the second message that described downstream neighbor sends by described high-order traffic overhead according to described the first message when described receiving element, set up and intersect.

Further; described transmitting element 1030 also for; when described high-order service protection path is available path; by low-order service expense to being in together before downstream neighbor in described high-order service protection path sends described the first message; by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

Further, described adaptation unit 1040 also for, when described receiving element does not receive described the second message that described downstream neighbor sends, the receiving port with described downstream neighbor is adapted for to low order granularity;

Described transmitting element 1030 also for, when described receiving element 1010 does not receive described the second message that described downstream neighbor sends, by described low-order service expense, to described downstream neighbor, send described the first message.

Therefore; the switching node of the support combination grain business shared resource providing by the application embodiment of the present invention; when high-order vocational work path failure; switching node receives the first message that upstream neighbor node sends by high-order traffic overhead; when high-order service protection path is available; by low-order service expense downstream neighbor, send the first message; and the receiving port with downstream neighbor is adapted for to high-order granularity; when receiving the second message that downstream neighbor sends by high-order traffic overhead, set up and intersect.Solved in prior art, intermediate node cannot support the message of multiple granularity expense to transmit simultaneously, reduces the problem of the operating efficiency of intermediate node.The switching node of the support combination grain business shared resource that the embodiment of the present invention provides, has improved the operating efficiency of intermediate node.

Embodiment seven

Correspondingly; the embodiment of the present invention seven also provides a kind of switching node of supporting combination grain business shared resource; in order to realize the reverse method of the support combination grain business shared resource that previous embodiment three provides; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported the processing of multiple granularity service; as shown in figure 11, described switching node comprises: receiving element 1110, judging unit 1120, transmitting element 1130, adaptation unit 1140 and set up unit 1150.

The receiving element 1110 that described switching node comprises, for when the high-order vocational work path failure that described high-order service protection path is protected, reception is in the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense together;

Judging unit 1120, for according to described the first message, judges whether described high-order service protection path is available path;

Transmitting element 1130, for when described high-order service protection path is available path, sends described the first message by low-order service expense to the downstream neighbor being in together in described high-order service protection path;

Adaptation unit 1140, for when described high-order service protection path is available path, is adapted for high-order granularity by the receiving port with described upstream neighbor node and described downstream neighbor respectively;

Set up unit 1150, when receiving the second message that described downstream neighbor sends by described high-order traffic overhead according to described the first message when described receiving element, set up and intersect.

Further, described transmitting element 1130 also for, after described adaptation unit 1140 is adapted for high-order granularity by the receiving port with described upstream neighbor node and described downstream neighbor respectively, by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

Further, described adaptation unit 1140 also for, when described receiving element does not receive described the second message that described downstream neighbor sends, the receiving port with described downstream neighbor is adapted for to low order granularity;

Described transmitting element 1130 also for, when described receiving element 1110 does not receive described the second message that described downstream neighbor sends, by described low-order service expense, to described downstream neighbor, send described the first message.

Therefore; the switching node of the support combination grain business shared resource providing by the application embodiment of the present invention; when high-order vocational work path failure; switching node receives the first message that upstream neighbor node sends by low-order service expense; when high-order service protection path is available; by low-order service expense downstream neighbor, send the first message; and the receiving port with downstream neighbor is adapted for to high-order granularity; when receiving the second message that downstream neighbor sends by high-order business, set up and intersect.Solved in prior art, intermediate node cannot support the message of multiple granularity expense to transmit simultaneously, reduces the problem of the operating efficiency of intermediate node.The switching node of the support combination grain business shared resource that the embodiment of the present invention provides, has improved the operating efficiency of intermediate node.

Embodiment eight

Correspondingly; the embodiment of the present invention eight also provides a kind of switching node of supporting combination grain business shared resource; in order to realize the reverse method of the support combination grain business shared resource that previous embodiment four provides; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported the processing of multiple granularity service; as shown in figure 12, described switching node comprises: receiving element 1210, judging unit 1220, transmitting element 1230, adaptation unit 1240 and set up unit 1250.

The receiving element 1210 that described switching node comprises, for when the high-order vocational work path failure that described high-order service protection path is protected, reception is in the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense together;

Judging unit 1220, for according to described the first message, judges whether described high-order service protection path is available path;

Transmitting element 1230, for when described high-order service protection path is available path, sends described the first message by high-order traffic overhead to the downstream neighbor being in together in described high-order service protection path;

Adaptation unit 1240, for when described high-order service protection path is available path, is adapted for high-order granularity by the receiving port with described upstream neighbor node;

Set up unit 1250, when receiving the second message that described downstream neighbor sends by described high-order traffic overhead according to described the first message when described receiving element, set up and intersect.

Further, described transmitting element 1230 also for, after described adaptation unit is adapted for high-order granularity by the receiving port with described upstream neighbor node, by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

Further, described transmitting element 1230 also for, when described receiving element does not receive described the second message that described downstream neighbor sends, by described high-order traffic overhead, to described downstream neighbor, send described the first message.

Therefore; the switching node of the support combination grain shared resource providing by the application embodiment of the present invention; when high-order vocational work path failure; switching node receives the first message that upstream neighbor node sends by low-order service expense; when high-order service protection path is available; by high-order traffic overhead downstream neighbor, send the first message; and the receiving port with downstream neighbor is adapted for to high-order granularity; when receiving the second message that downstream neighbor sends by high-order business, set up and intersect.Solved in prior art, intermediate node cannot support the message of multiple granularity expense to transmit simultaneously, reduces the problem of the operating efficiency of intermediate node.The switching node of the support combination grain business shared resource that the embodiment of the present invention provides, has improved the operating efficiency of intermediate node.

Embodiment nine

In addition; the implementation that the protection node of the support combination grain business shared resource that the embodiment of the present invention five provides can also adopt is as follows; in order to realize the guard method of the support combination grain business shared resource in the aforementioned embodiment of the present invention one; high-order service protection path and low-order service Protection path share a plurality of described protection nodes; and described in each, protect node to support the processing of multiple granularity service; as shown in figure 13, described protection node comprises: processor 1310 and memory 1320.System bus 1330 is for connecting processor 1310 and memory 1320.

Memory 1320 can be permanent memory, for example hard disk drive and flash memory, and memory 1320 is for storing application program, and described application program comprises and can be used for making processor 1310 to access and carry out as give an order:

When the high-order vocational work path protected when described high-order service protection path is normal, receive the first message that the upstream neighbor node in described high-order service protection path sends by low-order service expense;

Further, described application program also comprises the instruction that can be used for making the following process of described processor 1310 execution:

Before the first message that the upstream neighbor node of reception in described high-order service protection path sends by low-order service expense, when described high-order vocational work path is while being normal from fault recovery, receive the second message that the described upstream neighbor node in described high-order service protection path sends by high-order traffic overhead;

According to described the 3rd message, by and described downstream neighbor between the granularity in described high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and described downstream neighbor;

By described high-order traffic overhead, to described upstream neighbor node, send described the 3rd message; so that described upstream neighbor node is according to described the 3rd message; by and described protection node between the granularity in described high-order service protection path be adapted for low-order service expense, and intersecting of setting up of dismounting and described protection node.

Further, described the first message comprises the granularity in described type of message, the sign in described high-order vocational work path, described high-order vocational work path and protects and switch required time slot after described high-order vocational work path failure.

Therefore; the protection node of the support combination grain shared resource providing by the application embodiment of the present invention; when high-order vocational work path is normal; protection node receives the first message that the upstream neighbor node in high-order service protection path sends by low-order service expense; and this first message is sent to the downstream neighbor in high-order service protection path, so that each node in high-order service protection path is safeguarded high-order service protection path.Solved in prior art, in the normal situation of operating path, intermediate node simultaneously on supportive protection path the message of multiple granularity expense transmit, cause the problem of the Protection path of perception in time fault.The protection node of the support combination grain business shared resource that the embodiment of the present invention provides, has overcome the limitation of prior art scheme, has improved the operating efficiency of intermediate node.

Embodiment ten

In addition; the implementation that the switching node of the support combination grain business shared resource that the embodiment of the present invention six provides can also adopt is as follows; in order to realize the reverse method of the support combination grain business shared resource in the aforementioned embodiment of the present invention two; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported the processing of multiple granularity service; as shown in figure 14, described switching node comprises: processor 1410 and memory 1420.System bus 1430 is for connecting processor 1410 and memory 1420.

Memory 1420 can be permanent memory, for example hard disk drive and flash memory, and memory 1420 is for storing application program, and described application program comprises and can be used for making processor 1410 to access and carry out as give an order:

Receiving port with described downstream neighbor is adapted for to high-order granularity;

Further, described application program also comprises the instruction that can be used for making the following process of described processor 1410 execution:

Further, described application program also comprises the instruction that can be used for making the following process of described processor 1420 execution:

When not receiving described second message of described downstream neighbor transmission, the receiving port with described downstream neighbor is adapted for to low order granularity, by described low-order service expense, to described downstream neighbor, send described the first message.

Embodiment 11

In addition; the implementation that the switching node of the support combination grain business shared resource that the embodiment of the present invention six provides can also adopt is as follows; in order to realize the reverse method of the support combination grain business shared resource in the aforementioned embodiment of the present invention three; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported the processing of multiple granularity service; as shown in figure 15, described switching node comprises: processor 1510 and memory 1520.System bus 1530 is for connecting processor 1510 and memory 1520.

Memory 1520 can be permanent memory, for example hard disk drive and flash memory, and memory 1520 is for storing application program, and described application program comprises and can be used for making processor 1510 to access and carry out as give an order:

Respectively the receiving port with described upstream neighbor node and described downstream neighbor is adapted for to high-order granularity;

When receiving the second message that described downstream neighbor sends by the adjacent expense of described high-order according to described the first message, set up and intersect.

Further, described application program also comprises the instruction that can be used for making the following process of described processor 1510 execution:

Further, described application program also comprises the instruction that can be used for making the following process of described processor 1520 execution:

Therefore; the switching node of the support combination grain business shared resource providing by the application embodiment of the present invention; when high-order vocational work path failure; switching node receives the first message that upstream neighbor node sends by low-order service expense; when high-order service protection path is available; by low order expense downstream neighbor, send the first message; and the receiving port with downstream neighbor is adapted for to high-order granularity; when receiving the second message that downstream neighbor sends by high-order traffic overhead, set up and intersect.Solved in prior art, intermediate node cannot support the message of multiple granularity expense to transmit simultaneously, reduces the problem of the operating efficiency of intermediate node.Processing method and the processing node of the support combination grain business shared resource that the embodiment of the present invention provides, improved the operating efficiency of intermediate node.

Embodiment 12

In addition; the implementation that the switching node of the support combination grain business shared resource that the embodiment of the present invention eight provides can also adopt is as follows; in order to realize the reverse method of the support combination grain business shared resource in the aforementioned embodiment of the present invention four; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported the processing of multiple granularity service; as shown in figure 16, described switching node comprises: processor 1610 and memory 1620.System bus 1640 is for connecting processor 1610 and memory 1620.

Memory 1620 can be permanent memory, for example hard disk drive and flash memory, and memory 1620 is for storing application program, and described application program comprises and can be used for making processor 1610 to access and carry out as give an order:

Receiving port with described upstream neighbor node is adapted for to high-order granularity;

Further, described application program also comprises the instruction that can be used for making the following process of described processor 1610 execution:

After receiving port with described upstream neighbor node is adapted for to high-order granularity, by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

Further, described application program also comprises the instruction that can be used for making the following process of described processor 1620 execution:

Therefore; the switching node of the support combination grain business shared resource providing by the application embodiment of the present invention; when high-order vocational work path failure; switching node receives the first message that upstream neighbor node sends by low-order service expense; when high-order service protection path is available; by high-order traffic overhead downstream neighbor, send the first message; and the receiving port with downstream neighbor is adapted for to high-order granularity; when receiving the second message that downstream neighbor sends by high-order business, set up and intersect.Solved in prior art, intermediate node cannot support the message of multiple granularity expense to transmit simultaneously, reduces the problem of the operating efficiency of intermediate node.Processing method and the processing node of the support combination grain business shared resource that the embodiment of the present invention provides, improved the operating efficiency of intermediate node.

Professional should further recognize, unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein, can realize with electronic hardware, computer software or the combination of the two, for the interchangeability of hardware and software is clearly described, composition and the step of each example described according to function in the above description in general manner.These functions are carried out with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can specifically should be used for realizing described function with distinct methods to each, but this realization should not thought and exceeds scope of the present invention.

The software module that the method for describing in conjunction with embodiment disclosed herein or the step of algorithm can use hardware, processor to carry out, or the combination of the two is implemented.Software module can be placed in the storage medium of any other form known in random asccess memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.

Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection range being not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims

1. a reverse method of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of intermediate nodes; and described in each, intermediate node is supported described high-order business and described low-order service, it is characterized in that, described method comprises:

2. reverse method according to claim 1, is characterized in that, described intermediate node also comprises before sending described the first message to being in downstream neighbor in described high-order service protection path together by low-order service expense:

3. reverse method according to claim 1, is characterized in that, described method also comprises:

4. a reverse method of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of intermediate nodes; and described in each, intermediate node is supported described high-order business and described low-order service, it is characterized in that, described method comprises:

5. reverse method according to claim 4, is characterized in that, described intermediate node also comprises after respectively the receiving port with described upstream neighbor node and described downstream neighbor being adapted for to high-order granularity:

6. reverse method according to claim 4, is characterized in that, described method also comprises:

7. a reverse method of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of intermediate nodes; and described in each, intermediate node is supported described high-order business and described low-order service, it is characterized in that, described method comprises:

8. reverse method according to claim 7, is characterized in that, described intermediate node also comprises after the receiving port with described upstream neighbor node is adapted for to high-order granularity:

9. reverse method according to claim 7, is characterized in that, described method also comprises:

10. a guard method of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of intermediate nodes; and described in each, intermediate node is supported described high-order business and described low-order service, it is characterized in that, described method comprises:

11. guard methods according to claim 10, is characterized in that, before the first message that the upstream neighbor node of described intermediate node reception in described high-order service protection path sends by low-order service expense, also comprise:

12. according to the guard method described in claim 10 or 11 any one; it is characterized in that, described the first message comprises the granularity in described type of message, the sign in described high-order vocational work path, described high-order vocational work path and protects and switch required time slot after described high-order vocational work path failure.

13. 1 kinds of switching nodes of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported described high-order business and described low-order service, it is characterized in that, described switching node comprises:

14. switching nodes according to claim 13; it is characterized in that; described transmitting element also for; when described high-order service protection path is available path; by low-order service expense to being in together before downstream neighbor in described high-order service protection path sends described the first message; by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

15. switching nodes according to claim 13, it is characterized in that, described adaptation unit also for, when described receiving element does not receive described the second message that described downstream neighbor sends, the receiving port with described downstream neighbor is adapted for to low order granularity;

16. 1 kinds of switching nodes of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported described high-order business and described low-order service, it is characterized in that, described switching node comprises:

17. switching nodes according to claim 16, it is characterized in that, described transmitting element also for, after described adaptation unit is adapted for high-order granularity by the receiving port with described upstream neighbor node and described downstream neighbor respectively, by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

18. switching nodes according to claim 16, it is characterized in that, described adaptation unit also for, when described receiving element does not receive described the second message that described downstream neighbor sends, the receiving port with described downstream neighbor is adapted for to low order granularity;

19. 1 kinds of switching nodes of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported described high-order business and described low-order service, it is characterized in that, described switching node comprises:

20. switching nodes according to claim 19, it is characterized in that, described transmitting element also for, after described adaptation unit is adapted for high-order granularity by the receiving port with described upstream neighbor node, by described high-order traffic overhead, to described upstream neighbor node, send described the second message, so that described upstream neighbor node is set up and intersected according to described the second message.

21. switching nodes according to claim 19, it is characterized in that, described transmitting element also for, when described receiving element does not receive described the second message that described downstream neighbor sends, by described high-order traffic overhead, to described downstream neighbor, send described the first message.

22. 1 kinds of protection nodes of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of described protection nodes; and described in each, protect node to support described high-order business and described low-order service, it is characterized in that, described protection node comprises:

23. protection nodes according to claim 22, is characterized in that, before the first message that the upstream neighbor node of described receiving element reception in described high-order service protection path sends by low-order service expense, described protection node also comprises:

24. according to the protection node described in claim 22 or 23 any one; it is characterized in that, described the first message that described receiving element receives comprises the granularity in described type of message, the sign in described high-order vocational work path, described high-order vocational work path and protects and switch required time slot after described high-order vocational work path failure.

25. 1 kinds of switching nodes of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported described high-order business and described low-order service, it is characterized in that, described switching node comprises:

Processor;

Memory;

26. switching nodes according to claim 25, is characterized in that, described application program also comprises and can be used for making described processor to carry out the instruction of following process:

27. switching nodes according to claim 25, is characterized in that, described application program also comprises and can be used for making described processor to carry out the instruction of following process:

28. 1 kinds of switching nodes of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported described high-order business and described low-order service, it is characterized in that, described switching node comprises:

Processor;

Memory;

29. switching nodes according to claim 28, is characterized in that, described application program also comprises and can be used for making described processor to carry out the instruction of following process:

30. switching nodes according to claim 28, is characterized in that, described application program also comprises and can be used for making described processor to carry out the instruction of following process:

31. 1 kinds of switching nodes of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of described switching nodes; and described in each, switching node is supported described high-order business and described low-order service, it is characterized in that, described switching node comprises:

Processor;

Memory;

32. switching nodes according to claim 31, is characterized in that, described application program also comprises and can be used for making described processor to carry out the instruction of following process:

33. switching nodes according to claim 31, is characterized in that, described application program also comprises and can be used for making described processor to carry out the instruction of following process:

34. 1 kinds of protection nodes of supporting combination grain business shared resource; high-order service protection path and low-order service Protection path share a plurality of described protection nodes; and described in each, protect node to support described high-order business and described low-order service, it is characterized in that, described protection node comprises:

Processor;

Memory;

35. protection nodes according to claim 34, is characterized in that, described application program also comprises and can be used for making described processor to carry out the instruction of following process:

36. according to the protection node described in claim 34 or 35 any one; it is characterized in that, described the first message comprises the granularity in described type of message, the sign in described high-order vocational work path, described high-order vocational work path and protects and switch required time slot after described high-order vocational work path failure.