CN102801596A - Service processing method for ring network and network equipment - Google Patents
Service processing method for ring network and network equipment Download PDFInfo
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- CN102801596A CN102801596A CN2012101900022A CN201210190002A CN102801596A CN 102801596 A CN102801596 A CN 102801596A CN 2012101900022 A CN2012101900022 A CN 2012101900022A CN 201210190002 A CN201210190002 A CN 201210190002A CN 102801596 A CN102801596 A CN 102801596A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/42—Loop networks
- H04L12/437—Ring fault isolation or reconfiguration
Abstract
The invention provides a service processing method for a ring network and network equipment. The method comprises the following steps of: acquiring unreachable node information by using a first node in the ring network; determining a suppressed service in local service information; and suppressing the determined suppressed service. The network equipment comprises an acquisition module, a determination module and a suppression module. An unreachable service is suppressed, so that an additional protecting channel bandwidth can be prevented from being occupied, and influence on other reachable services is maximally reduced.
Description
Technical field
The present invention relates to the communication technology, relate in particular to the method for processing business and the network equipment in a kind of looped network.
Background technology
Along with multiprotocol label switching (Multi Protocol Label Switching; Abbreviate as: the MPLS) development of technology; In order to strengthen the reliability of network; Multiple MPLS ring net protection method progressively occurs, can comprise wrapping switchover mode and steering switchover mode in every kind of guard method.For instance, under the situation of looped network operate as normal, professional at the transmission path in the looped network shown in Fig. 1 a.When breaking down between node in the looped network 4 and the node 3, the wrapping switchover mode can be switched according to the path shown in the dotted line among Fig. 1 b, and the steering switchover mode then can be switched according to the path shown in the dotted line among Fig. 1 c.
No matter be wrapping switchover mode or steering switchover mode; Going up the ring service node or encircling service node down in looped network broken down; Perhaps because peripheral fault causes the ring service node perhaps to encircle down when being isolated between the service node; All following problem can occur: business can't normally be connected; Switch but the MPLS looped network protection still starts, cause the flow of inaccessible business still on each node of looped network, to be transmitted, take other and can normally connect professional bandwidth.
Summary of the invention
For fear of the flow occupied bandwidth of unreachable business and influence other and can reach business, on the one hand, the present invention provides method for processing business in a kind of looped network, comprising:
First node in the looped network obtains unreachable nodal information;
According to the unreachable nodal information that obtains, in local service information, confirm downtrodden business;
Downtrodden business to confirming is suppressed.
On the other hand, the present invention also provides a kind of network equipment, comprising:
Obtain module, be used to obtain unreachable nodal information, and said unreachable nodal information is sent to determination module;
Said determination module is used for the unreachable nodal information according to said acquisition module acquisition, in local service information, confirm downtrodden business, and the downtrodden business that will confirm sends to compression module;
Said compression module is used for suppressing according to the downtrodden business that said determination module is confirmed.
The invention has the beneficial effects as follows: through inaccessible business is suppressed, avoid taking the Additional Protection bandwidth chahnel, minimum degree reduces can reach professional influence to other.
Description of drawings
Fig. 1 a is a professional transmission path sketch map in looped network under the situation of looped network operate as normal;
Fig. 1 b is the service path sketch map of wrapping switchover mode under the looped network situation about breaking down;
Fig. 1 c is the service path sketch map of steering switchover mode under the looped network situation about breaking down;
Method for processing business flow chart in the looped network that Fig. 2 provides for one embodiment of the invention;
Fig. 3 a and Fig. 3 b are the fault point sketch map in the embodiment of the invention;
Fig. 4 a and Fig. 4 b are the preparation method sketch map of fault point information in the embodiment of the invention;
Fig. 5 a is the sketch map that the static mode that provides of one embodiment of the invention obtains ring-network topology;
Fig. 5 b is the flow chart that the dynamical fashion that provides of one embodiment of the invention obtains ring-network topology;
The APS protocol massages form sketch map that Fig. 6 provides for one embodiment of the invention;
The dynamical fashion that Fig. 7 provides for one embodiment of the invention obtains the flow chart of ring-network topology;
The professional sketch map of looped network that Fig. 8 provides for one embodiment of the invention;
The structural representation of the network equipment that Fig. 9 provides for one embodiment of the invention;
The structural representation of the acquisition module that Figure 10 provides for one embodiment of the invention;
The structural representation of the acquisition module that Figure 11 provides for one embodiment of the invention;
The structural representation of the information acquisition unit, fault point that Figure 12 provides for one embodiment of the invention;
The topology that Figure 13 provides for one embodiment of the invention obtains the structural representation of unit;
The structural representation of the dynamic subelement that Figure 14 provides for one embodiment of the invention;
The structural representation of the compression module that Figure 15 provides for one embodiment of the invention;
The structural representation of the network equipment that Figure 16 provides for one embodiment of the invention;
The structural representation of the network equipment that Figure 17 provides for one embodiment of the invention;
The structural representation of the network equipment that Figure 18 provides for one embodiment of the invention;
The structural representation of the network equipment that Figure 19 provides for one embodiment of the invention.
Embodiment
Method for processing business flow chart in the looped network that Fig. 2 provides for one embodiment of the invention, as shown in Figure 2, this method comprises:
100, the first node in the looped network obtains unreachable nodal information;
101, first node is confirmed downtrodden (squelched) business according to the unreachable nodal information that obtains in local service information.
102, this first node is suppressed the downtrodden business of confirming.
Wherein, first node is a kind of acute pyogenic infection of finger tip, can the acute pyogenic infection of finger tip looped network in any node.
Optional, because the node adjacent with malfunctioning node/faulty link is the node of knowing that at first its adjacent node/adjacent link breaks down, therefore, this first node can refer in particular to the node adjacent with malfunctioning node/faulty link.In this case, on the node adjacent, the downtrodden business of confirming is suppressed, can reduce the number of nodes of in the looped network business being suppressed, make node as much as possible can be absorbed in normal professional the forwarding with malfunctioning node/faulty link.
Optional, the first node in the above-mentioned looped network obtains unreachable nodal information (100), can comprise:
This first node begins from self, according to the first direction of looped network, searches malfunctioning node; (back is claimed: first malfunctioning node) afterwards on first direction, to find a malfunctioning node first; Begin from this first malfunctioning node; Second direction according to looped network is searched malfunctioning node; (back is claimed: second malfunctioning node), wherein, second direction is the rightabout of first direction up on second direction, also finding a malfunctioning node first; For example, can incite somebody to action counter clockwise direction as second direction with clockwise direction as first direction, or can be with counterclockwise as first direction, clockwise direction is as second direction or the like.On above-mentioned first direction, to second malfunctioning node, the node between this is unreachable node since first malfunctioning node.
Optional, above-mentioned first node is searched malfunctioning node and can is: according to ring-network topology and fault point information searching malfunctioning node.
Optional, after above-mentioned first node finds first malfunctioning node, when searching second malfunctioning node, can also carry out record to the nodal information of searching according to second direction.
For example, first node begins from self, and according to some directions (first direction or second direction all can), whether the nodal information of judging each node in the looped network be in the information of fault point.If the nodal information of a certain node is in the information of fault point, then this node is a malfunctioning node.After finding first malfunctioning node, carry out opposite direction and search, and the nodal information crossed of record search.After finding that on above-mentioned opposite direction second malfunctioning node then stops to search, writing down the second malfunctioning node information, stop to write down nodal information.At this moment, the node of the pairing node of nodal information that is write down for reaching, other nodes in the looped network are unreachable node.If search until getting back to said first node according to first direction and all not find first malfunctioning node, then stop to search, can think that whole nodes in the looped network are this moment and can reach node.
Optional, when the fault point was positioned at certain node, above-mentioned fault point information was the nodal information of this node; When the fault point was positioned on the link, above-mentioned fault point information was the nodal information of these faulty link two end nodes.For example, in Fig. 3 a, if fault has taken place the link between node 2 and the node 3, then above-mentioned fault point information is meant the nodal information of node 2 and node 3.The form of concrete fault point information can be expressed as (source node, destination node), and perhaps (destination node, source node) etc. to the link the above-mentioned purpose node fault taken place from above-mentioned source node to characterize.For example, node 2 is to the link occurs fault of node 3, and then above-mentioned fault point information can be (2,3) perhaps (2,3).
When certain bar link occurs fault (that is: the fault point is positioned on the link); According to APS (Automatic Protection Switching; Abbreviate as: APS) regulation of agreement is carried out automatic fault and is switched; The node that triggers the faulty link two ends is respectively through first direction and second direction, and other nodes in looped network send the APS protocol massages, can carry fault point information in this APS protocol massages.In looped network; Arrive another node from a node both direction is arranged; The interstitial content of process may be different on this both direction; APS protocol massages through the many paths of interstitial content can be called major diameter APS protocol massages, and the APS protocol massages in the path that the process interstitial content is few can be called minor axis APS protocol massages.Shown in Fig. 4 a, node 2 other nodes in looped network send the APS protocol massages, and (Signal Fail abbreviates as: SF) message, the fault point information of wherein carrying are (3,2) like Signal Fail; Node 3 other nodes in looped network send the SF message, and the fault point information of wherein carrying is (2,3).At this moment, for node 2, major diameter APS protocol massages is the SF (3,2) that sends to node 3 on the counter clockwise direction, and minor axis APS protocol massages is the SF (3,2) that sends to node 3 on the clockwise direction.Accordingly, for node 3, major diameter APS protocol massages is the SF (2,3) that sends to node 2 on the clockwise direction, and minor axis APS protocol massages is the SF (2,3) that sends to node 2 on the counter clockwise direction.
When certain node in the looped network breaks down (that is: the fault point is positioned at certain node); The node at these malfunctioning node two ends also can pass through first direction and second direction, and other nodes in looped network send the APS protocol massages, and carry fault point information; This fault point information is exactly the node identification that breaks down; Find that like node 3 node 2 breaks down, the fault point information of carrying in the APS protocol massages that then node 3 sends is the node identification of node 2, shown in Fig. 3 b.
First node can be noted the fault point information of wherein carrying after receiving these APS protocol massages.Because the node adjacent with the fault point all can send the APS protocol massages, therefore, to same fault point, first node may be received a plurality of APS protocol massages.Optional, for the APS protocol massages of receiving,, write down the fault point information that any APS protocol massages carries if fault point information is identical.Wherein, the fault point information of above-mentioned indication is identical, can comprise source node, two kinds of situation that destination node is identical or opposite.For example, be characterized by the fault point information of (3,2) and (2,3), think identical.
In looped network, may simultaneously or successively a plurality of faults take place, according to the APS agreement, each fault all can trigger automatic fault and switch.Optional, in some scenes, the priority of disturbance switching can be different; For example; The disturbance switching that some moment are initiating automatically, and the disturbance switching that have manual operation to trigger this moment just are if the priority of the disturbance switching that manual operation triggers is higher than the priority of the disturbance switching of automatic initiation; Then this disturbance switching of initiating automatically will be regarded as cancellation, and equipment is directly carried out the disturbance switching that manual operation triggers.In embodiments of the present invention, this situation is called seizing of disturbance switching.Optional, in the other scene, a disturbance switching can't cause another disturbance switching to be regarded as cancellation.In embodiments of the present invention, this situation is called the coexistence of disturbance switching.
In the scene of disturbance switching coexistence, the fault point information that first node recorder is arrived.Shown in Fig. 4 b, in this looped network, fault has all taken place in the link between the link between node 2 and the node 3, node 3 and the node 4.Node 2 sends SF (3,2) respectively through first direction and second direction to other nodes, and node 4 sends SF (3,4) respectively through first direction and second direction to other nodes.After node 1 receives SF (3,4) and SF (3,2), confirm that according to SF (3,4) unreachable node is node 3 and node 4, confirm that according to SF (3,2) unreachable node is node 3 and node 2, so, fault point information is recorded as (2,3,4).
In the scene that disturbance switching is seized, the disturbance switching of being seized then is regarded as cancelling, the APS protocol massages that then has only the high disturbance switching of priority to trigger in the looped network; The fault point information that this APS protocol massages of first node record carries, and the fault point information that writes down before disposing.
Optional, after fault recovery, the node at two ends, the fault point APS protocol massages of not redispatching.If in Preset Time, first node does not receive the APS protocol massages that carries the same fault dot information once more, can think that then this fault point recovered normally, can be with this fault point information deletion etc.
Optional, ring-network topology can but be not limited to obtain through following dual mode:
First kind is static mode.Node in looped network, first node for example, on dispose ring-network topology.For example, when the configuration looped network, dispose ring-network topology according to same direction (as clockwise perhaps counterclockwise) at each node.Shown in Fig. 5 a, suppose looped network 6 nodes altogether, after being configured according to clockwise direction, the ring-network topology on each node is respectively: node 1:123456, node 2:234561, node 3:345612, node 4 ~ 6 can not done and give unnecessary details by that analogy.Being configured according to counterclockwise direction can be opposite with clockwise direction configuration, does not do here and gives unnecessary details.
Second kind is dynamical fashion.First node obtains ring-network topology through carrying out the mutual of protocol massages with other nodes.Shown in Fig. 5 b, can comprise:
501, first node receives first kind major diameter APS protocol massages; Wherein, First kind major diameter APS protocol massages is from the adjacent node of first node; Destination node is this first node, and first kind major diameter APS protocol massages carries the node number of source node information, destination node information and this first kind major diameter APS protocol massages process.
Optional, the form in the above-mentioned major diameter APS protocol massages can be as shown in Figure 6, wherein; Destination node ID is destination node ID, and Source node ID is source node ID, and Bridge Request is the bridge joint request; Reserved is a reserved field; Wherein, in reserved field, 1 ~ 4 bit can be used to write down the node number (NodeNum) of this major diameter APS protocol massages process.Certainly,, can expand several bits more and be used to write down NodeNum, not do qualification here if 1 ~ 4 bit is not enough.
502, according to the node number of first kind major diameter APS protocol massages process, confirm the number of nodes in the looped network.
Bright for instance; With the ring network structure shown in Fig. 5 a is example, and node 4 sends major diameter APS protocol massages to its adjacent node 3, when this major diameter APS protocol massages arrives destination node 3; The number of nodes that writes down in the reserved field of APS protocol massages is 5; Then node 3 can be confirmed, except that node 3, also comprises 5 nodes on the looped network.
503, first node sends and/or receives second type of major diameter APS protocol massages, source node information and destination node information that record wherein carries; Wherein, Second type of major diameter APS protocol massages carries the node number of source node information, destination node information and this second type of major diameter APS protocol massages process; Be different from first kind major diameter APS protocol massages; The destination node of second type of major diameter APS protocol massages is not said first node, but the node of other except that first node in the looped network.
Optional, when being the situation of second type of major diameter APS protocol massages of first node transmission, the source node of second type of major diameter APS protocol massages is a first node, destination node is the adjacent node of said first node; When being first node when receiving the situation of second type of major diameter APS protocol massages, the source node of second type of major diameter APS protocol massages be in the looped network except other nodes of said first node, destination node is the adjacent node of other nodes.
When first node received second type of major diameter APS protocol massages from other nodes, first node added 1 back with the node number of second type of major diameter APS protocol massages process and transmits this second type of major diameter APS protocol massages to next node.
504, first node is according to the number of nodes in the looped network of confirming, above-mentioned first kind major diameter APS message and second type of source node information and destination node information that major diameter APS protocol massages carries are confirmed ring-network topology.
Because the destination node and the source node of second type of major diameter APS protocol massages are adjacent; Therefore; If first node receives the major diameter APS protocol massages that every other node sends in the looped network, just can confirm ring-network topology through the source node information and the destination node information of wherein carrying.
For instance, still referring to the ring network structure shown in Fig. 5 a, be example with node 3, confirm when node 3, except that self, also comprise after 5 nodes in the looped network, can know that just in this looped network, one has 6 nodes.
Therefore, node 3 can receive such first kind major diameter APS protocol massages:
According to the number of nodes in the looped network; First node (for example can be known on some directions; Clockwise direction), whether sent or received all first kind major diameter APS protocol massages and second type of major diameter APS protocol massages, if; Then can confirm ring-network topology according to first kind major diameter APS message and second type of source node information and destination node information that major diameter APS protocol massages carries.For example, 3 pairs of above-mentioned source nodes of node, destination node information are carried out record, just can obtain following information: on the clockwise direction: (6,5), (1,6); (2,1), (3,2) ..., and counterclockwise: (2,3); (1,2), (6,1), (5,6) ...Thus, node 3 can confirm that this ring-network topology is 345612 in the clockwise direction, and is 321654 counterclockwise.
Optional, as shown in Figure 7, on the basis of above-mentioned execution mode, can also comprise:
505, respectively according to major diameter APS protocol massages on the first direction and the major diameter APS protocol massages on the second direction, confirm ring-network topology,, explain that then the configuration of looped network possibly have problems, generate alarm if the two is inequality.
Optional, first node is confirmed downtrodden business (101) according to the unreachable nodal information that obtains in local service information, can comprise:
First node determines whether to exist link point and/or the following link point business for unreachable node according to said unreachable nodal information in local service information, if exist, then confirm business to be downtrodden business.Wherein, local service information can comprise at least: traffic direction, and professional link point identification or the professional link point identification down gone up.
Optional, first node is suppressed (102) to fixed downtrodden business, can be:
Compacting based on service channel.First node is suppressed every downtrodden business according to the unreachable nodal information and the local service information that obtain.
For example,, transmit stratification invalid flag position, abandon this business at this professional incoming interface if professional following link point is unreachable; Perhaps, when first node is said when being pressed professional last link point, can (Time To Live abbreviates as: TTL), wherein, said life span be less than or equal to predetermined ttl threshold of router for this downtrodden business setting life span.Be pressed professional TTL through setting, can limit being pressed the professional transmission range of flow in looped network, reduce the influence of the business that can reach other.
Optional, above-mentioned ttl threshold of router can be any one in the following several kinds of numerical value:
1, on the traffic direction, from being pressed the jumping figure of professional last link point to following link point;
2, on the professional rightabout, from being pressed the jumping figure of professional last link point to following link point;
3, N+M, wherein, N be on the traffic direction from the last link point of business to the jumping figure of link point down, M is the quantity of node in the looped network;
4, N+M-2 goes for down the scene of link point Single Point of Faliure.
5,2M goes for network environment is required lower scene.
If professional last link point is unreachable; Then from then on professional outgoing interface direction; The downstream direction send alarm indication signal (Alarm Indication Signal abbreviates as: AIS) or the indication of forward direction defective (Forward Defection Indicator abbreviates as: FDI).
With Fig. 8 is example; Suppose that professional 1,2,4 all get into looped network (node 1 is last link point) at node 1; Business 1 and 4 is left looped network (node 3 is the following link point of business 1 and 4) at node 3, and business 2 is left looped network (node 4 is the following link point of business 2) at node 4; Professional 3 at node 2 entering looped networks, leave looped network (node 2 is the last link point of business 3, and node 1 is professional 3 following link point) at node 1, and then at node 1, local service information can be expressed as the content shown in the table 1:
Table 1
Wherein, ring in the In representative, the Out representative is ring down; Rw represents building ring passage (Ring working), and Rp represents guard ring passage (Ring protecting).
If the unreachable nodal information that node 1 obtains is a node 3, so, node 1 confirms that professional 1 and professional 4 is downtrodden business.Because node 3 is following link points of professional 1 and 4, therefore, node 1 can discard the flow of the business that receives 1 and 4, for example, can transmit the stratification invalidated identification at professional 1 and 4 incoming interfaces, thereby the flow of the business that receives 1 and 4 can be dropped all.
Optional, first node is suppressed (102) to fixed downtrodden business and can also is:
Compacting based on the ring passage.First node is confirmed said downtrodden professional corresponding ring passage (work and protection passage), to suppressing through the business of the corresponding ring channel transfer of downtrodden business according to downtrodden business.For example, can transmit layer at downtrodden professional corresponding ring passage invalidated identification is set, the business that then is forwarded to the corresponding ring passage of downtrodden business all can be dropped.
With respect to the pressing mode based on service channel, bigger based on the pressing mode strength disposal of ring passage, during same ring passage, treatment effeciency is more excellent on than high traffic.
Optional, the looped network that relates in the foregoing description can be the MPLS looped network, or based on the looped network of other agreements, for example, (Resilient Packet Ring abbreviates as: RPR), embodiments of the invention are not done qualification to RPR to this.
One of ordinary skill in the art will appreciate that: realize that all or part of of above-mentioned each method embodiment can accomplish through the relevant hardware of program command.Aforesaid program can be stored in the computer read/write memory medium.This program is when carrying out, and execution comprises above-mentioned each method embodiment's; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
The method for processing business based on looped network protection that the embodiment of the invention provides through inaccessible business is suppressed, avoids taking the Additional Protection bandwidth chahnel, and minimum degree reduces can reach professional influence to other.
A kind of network equipment that another embodiment of the present invention provides, this network equipment can be said first nodes in the said method execution mode, and therefore, this network equipment can be carried out the some or all of of description among the said method embodiment.
As shown in Figure 9, this network equipment can comprise: obtain module 900, determination module 901 and compression module 902.Wherein, obtain module 900 and be used to obtain unreachable nodal information, and unreachable nodal information is sent to determination module 901; Determination module 901 is used in local service information, confirming downtrodden business, and fixed downtrodden business being sent to compression module 902 according to obtaining the unreachable nodal information that module 900 obtains; Compression module 902 is used for the downtrodden business that determination module 901 is confirmed is suppressed.
Optional, shown in figure 10, above-mentioned acquisition module 900 specifically can comprise: first searches unit 900a, second searches unit 900b and obtains unit 900c.Wherein, first searches unit 900a is used for self beginning from the said network equipment, according to the first direction in the looped network, finds first malfunctioning node, and first malfunctioning node that will find sends to second and searches unit 900b and obtain unit 900c; Second searches unit 900b is used for since first malfunctioning node; Search malfunctioning node according to second direction,, second malfunctioning node is sent to acquisition unit 900c up on second direction, finding second malfunctioning node; Wherein, second direction is the rightabout of first direction; Acquisition unit 900c is used for searching unit 900a and second according to first and searches the information that unit 900b sends, and obtains unreachable nodal information, and wherein, on first direction, the node between first malfunctioning node and second malfunctioning node is unreachable node.Wherein, the malfunctioning node of first malfunctioning node on first direction, searching first, the malfunctioning node of second malfunctioning node on second direction, finding first.
Optional, shown in figure 11, obtaining module 900 can also comprise: topology obtains unit 900d, is used to obtain ring-network topology; And information acquisition unit, fault point 900e is used to obtain fault point information.Further optional, first searches unit 900a and second searches fault point information searching first malfunctioning node and second malfunctioning node that unit 900b can obtain according to the ring-network topology and information acquisition unit, the fault point 900e of this topology acquisition unit 900d acquisition.
Optional, shown in figure 12, information acquisition unit, fault point 900e can comprise: receive subelement 900e1, be used to receive the APS protocol massages that the adjacent node of fault point sends, carry fault point information in this APS protocol massages; Obtain subelement 900e2, be used for from receiving the APS protocol massages acquisition fault point information that subelement 900e1 receives; Send subelement 900e3, be used for sending to first and searching unit 900a and second and search unit 900b obtaining fault point information that subelement 900e2 obtains.
Optional, shown in figure 13, topology obtains unit 900d and can comprise: static subelement 900d1 is used for the static configuration ring-network topology; Perhaps, dynamically subelement 900d2 is used for carrying out the mutual of protocol massages through other nodes with looped network, obtains ring-network topology.Be in easy consideration, show above-mentioned two sub-cells among Figure 13 simultaneously.
Optional, shown in figure 14, dynamically subelement 900d2 can comprise:
First handles subelement 900d2a, is used to receive first kind major diameter APS protocol massages, the node number of said first kind major diameter APS protocol massages process is sent to number of nodes confirm subelement 900d2b; Wherein, Said first kind major diameter APS protocol massages is from the adjacent node of this network equipment; Destination node is this network equipment self, and said first kind major diameter APS protocol massages carries the node number of source node information, destination node information and this first kind major diameter APS protocol massages process;
Number of nodes is confirmed subelement 900d2b; Be used for node number according to the first kind major diameter APS protocol massages process of the first processing subelement 900d2a transmission; Confirm the number of nodes in the looped network, and the number of nodes in the fixed looped network is sent to ring-network topology confirm subelement;
Second handles subelement 900d2c; Be used for sending and/or receiving second type of major diameter APS protocol massages; Write down second type of source node information and destination node information that the APS protocol massages carries, the source node information of carrying in second type of major diameter APS protocol massages and destination node information are sent to ring-network topology confirm subelement 900d2d; Wherein, Second type of major diameter APS protocol massages carries the node number of source node information, destination node information and this second type of major diameter APS protocol massages process; Be different from first kind major diameter APS protocol massages, the destination node of second type of major diameter APS protocol massages is not the said network equipment;
Ring-network topology is confirmed subelement 900d2d, is used for the number of nodes according to the looped network that receives, and the source node information and the destination node information of carrying in first kind major diameter APS protocol massages and the second type of major diameter APS protocol massages, confirms ring-network topology.
Optional, above-mentioned determination module 901 specifically is used for: according to unreachable nodal information, in local service information, determine whether to exist link point and/or the following link point business for unreachable node; If exist, then confirm business to be downtrodden business.
Optional, shown in figure 15, above-mentioned compression module 902 comprises: the first press unit 902a is used for based on service channel fixed downtrodden business being suppressed; Perhaps, the second press unit 902b is used for based on the ring passage fixed downtrodden business being suppressed.Be in easy consideration, show said two units among Figure 15 simultaneously.
Optional, if professional following link point is unreachable, then the first press unit 902a specifically is used for: transmit stratification invalid flag position at downtrodden professional incoming interface, abandon downtrodden business; Perhaps, (Time To Live abbreviates as: TTL), wherein, said life span is less than or equal to predetermined ttl threshold of router for this downtrodden business setting life span; If professional last link point is unreachable, then the first press unit 902a is used for: from the outgoing interface direction of downtrodden business, send alarm indication information AIS or forward direction defective indication FDI downstream.
Optional, the second press unit 902b specifically is used for: according to downtrodden business, confirm downtrodden professional corresponding ring passage, to suppressing through the business of ring channel transfer.Under a kind of execution mode, the second press unit 902b suppresses the business of ring channel transfer through the mode of transmitting the stratification invalidated identification at the ring passage, abandon the business that is forwarded to the ring passage.
The structural representation of the network equipment that Figure 16 provides for one embodiment of the invention, shown in figure 16, this network equipment comprises processor (processor) 1601.Wherein, processor 1601 is used to obtain unreachable nodal information, and in local service information, confirms downtrodden business according to unreachable nodal information, and fixed downtrodden business is suppressed.
Optional, this processor 1601 can obtain unreachable nodal information through following mode: begin from the processor 1601 place network equipments self, according to the first direction in the looped network, search malfunctioning node; After finding first malfunctioning node on the first direction, since first malfunctioning node, search malfunctioning node according to second direction, up on second direction, finding second malfunctioning node, second direction is the rightabout of first direction; On first direction, since first malfunctioning node to second malfunctioning node, between node be unreachable node.Wherein, the malfunctioning node of first malfunctioning node on first direction, finding first, the malfunctioning node of second malfunctioning node on second direction, finding first.
Optional, processor 1601 can be according to according to ring-network topology and fault point information searching malfunctioning node.
Optional, shown in figure 17, this network equipment can also comprise: receiver 1602, be used to receive the APS APS protocol massages that the adjacent node of fault point sends, and carry fault point information in this APS protocol massages; Accordingly, processor 1601 obtains fault point information according to the APS protocol massages that receives in the receiver 1602.
Optional, shown in figure 18, this network equipment can also comprise: transmitter 1603 is used for cooperating the protocol massages of realizing with other nodes of looped network mutual with receiver 1602, thereby in processor 1601, obtains ring-network topology.
Optional, shown in figure 19, this network equipment can also comprise: memory 1604, the ring-network topology that ring-network topology that is used for receiver 1602 is received and/or processor 1601 obtain is preserved.
For example; Receiver 1602 receives first kind major diameter APS APS protocol massages; Wherein, First kind major diameter APS protocol massages is from the adjacent node of this network equipment, and destination node is this network equipment, and first kind major diameter APS protocol massages carries the node number of source node information, destination node information and this first kind major diameter APS protocol massages process; Processor 1601 is confirmed the number of nodes in the looped network according to the node number of first kind major diameter APS protocol massages process; Receiver 1602 sends and/or receives second type of major diameter APS protocol massages, writes down second type of source node information and destination node information that major diameter APS protocol massages carries; Wherein, the destination node of second type of major diameter APS protocol massages is not the said network equipment; Second type of major diameter APS protocol massages carries the node number of source node information, destination node information and this second type of major diameter APS protocol massages process; Processor 1601 is according to the number of nodes in the looped network, and the source node information and the destination node information of carrying in first kind major diameter APS protocol massages and the second type of major diameter APS protocol massages, confirms ring-network topology.
Optional, processor 1601 can determine whether to exist link point and/or the following link point business for unreachable node according to said unreachable nodal information in local service information, if exist, confirm that then said business is downtrodden business.
Optional, processor 1601 can be suppressed fixed downtrodden business based on service channel, perhaps based on the ring passage fixed downtrodden business is suppressed.
For example, based on service channel fixed downtrodden business being suppressed can be the unreachable nodal information of processor 1601 according to acquisition, and local service information, and downtrodden business is suppressed.If professional following link point is unreachable, processor 1601 is transmitted stratification invalid flag position at downtrodden professional incoming interface, abandons downtrodden business; If professional last link point is unreachable, processor 1601 sends alarm indication information AIS or forward direction defective indication FDI downstream from the outgoing interface direction of downtrodden business.
Based on the ring passage to fixed downtrodden business suppress can be processor 1601 according to downtrodden business, confirm to be pressed professional corresponding ring passage, to suppressing through the business of ring channel transfer.For example, processor 1601 can be transmitted the stratification invalidated identification at the ring passage, abandons the business that is forwarded to the ring passage.
What should explain at last is: above each embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although the present invention has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.
Claims (24)
1. method for processing business in the looped network is characterized in that, comprising:
First node in the looped network obtains unreachable nodal information;
According to the unreachable nodal information that obtains, in local service information, confirm downtrodden business;
Downtrodden business to confirming is suppressed.
2. method according to claim 1 is characterized in that, said first node obtains unreachable nodal information, comprising:
Said first node begins from self, according to the first direction in the looped network, searches malfunctioning node;
After finding first malfunctioning node on the first direction, begin from said first malfunctioning node, search malfunctioning node according to second direction, up on second direction, finding second malfunctioning node, said second direction is the rightabout of said first direction; The malfunctioning node of said first malfunctioning node on first direction, finding first, the malfunctioning node of said second malfunctioning node on second direction, finding first;
On said first direction, begin to said second malfunctioning node from said first malfunctioning node, between node be unreachable node.
3. method according to claim 2 is characterized in that, the said malfunctioning node of searching comprises:
Said first node is according to ring-network topology and the said malfunctioning node of fault point information searching.
4. method according to claim 3 is characterized in that, said fault point information obtains through following method:
Said first node receives the APS APS protocol massages of the adjacent node transmission of said fault point, carries said fault point information in the said APS protocol massages.
5. method according to claim 3 is characterized in that, said ring-network topology obtains through following mode:
The said ring-network topology of configuration on said first node; Perhaps
Said first node through with said looped network in other nodes carry out the mutual of protocol massages, obtain said ring-network topology.
6. method according to claim 5 is characterized in that, said first node through with said looped network in other nodes carry out the mutual of protocol massages, obtain said ring-network topology, comprising:
First node receives first kind major diameter APS APS protocol massages; Wherein, Said first kind major diameter APS protocol massages is from the adjacent node of said first node; Destination node is said first node, and said first kind major diameter APS protocol massages carries the node number of source node information, destination node information and this first kind major diameter APS protocol massages process;
According to the node number of said first kind major diameter APS protocol massages process, confirm the number of nodes in the looped network;
Said first node sends and/or receives second type of major diameter APS protocol massages, writes down said second type of source node information and destination node information that major diameter APS protocol massages carries; Wherein, said second type of major diameter APS protocol massages carries the node number of source node information, destination node information and this second type of major diameter APS protocol massages process; The destination node of said second type of major diameter APS protocol massages is other nodes except that first node in the looped network;
First node is according to the number of nodes in the said looped network, and the source node information and the destination node information of carrying in said first kind major diameter APS protocol massages and the said second type of major diameter APS protocol massages are confirmed ring-network topology.
7. according to each described method among the claim 1-6, it is characterized in that, said according to the unreachable nodal information that obtains, in local service information, confirm downtrodden business, comprising:
Said first node determines whether to exist link point and/or the following link point business for unreachable node according to said unreachable nodal information in local service information, if exist, confirm that then said business is downtrodden business.
8. according to each described method among the claim 1-7, it is characterized in that, fixed downtrodden business suppressed, comprising:
Based on the compacting of service channel, perhaps based on the compacting that encircles passage.
9. method according to claim 8 is characterized in that, said compacting based on service channel comprises:
Said first node is suppressed downtrodden business according to the unreachable nodal information and the local service information that obtain.
10. method according to claim 9 is characterized in that, if professional following link point is unreachable, said downtrodden business is suppressed, and comprising:
First node is transmitted stratification invalid flag position at said downtrodden professional incoming interface, abandons said downtrodden business; Perhaps, be said downtrodden business setting life span TTL, wherein, said TTL is less than or equal to predetermined ttl threshold of router;
If professional last link point is unreachable, said downtrodden business is suppressed, comprising:
First node sends alarm indication information AIS or forward direction defective indication FDI downstream from the outgoing interface direction of said downtrodden business.
11. method according to claim 8 is characterized in that, said compacting based on the ring passage comprises:
First node is confirmed the said professional corresponding ring passage that is pressed, to suppressing through the business of said ring channel transfer according to downtrodden business.
12. method according to claim 11 is characterized in that, to suppressing through the business of said ring channel transfer, comprising:
Transmit the stratification invalidated identification at said ring passage, abandon the business that is forwarded to said ring passage.
13. a network equipment is characterized in that, comprising:
Obtain module, be used to obtain unreachable nodal information, and said unreachable nodal information is sent to determination module;
Said determination module is used for the unreachable nodal information according to said acquisition module acquisition, in local service information, confirms downtrodden business, and fixed downtrodden business is sent to compression module;
Said compression module is used for the downtrodden business that said determination module is confirmed is suppressed.
14. the network equipment according to claim 13 is characterized in that, said acquisition module comprises:
First searches the unit, is used for beginning from the network equipment self, according to the first direction in the looped network, finds first malfunctioning node, said first malfunctioning node is sent to second search the unit and obtain the unit; Wherein, the malfunctioning node of said first malfunctioning node on first direction, finding first;
Said second searches the unit; Be used for beginning, search malfunctioning node, up on second direction, finding second malfunctioning node according to second direction from said first malfunctioning node; Said second malfunctioning node is sent to said acquisition unit, and said second direction is the rightabout of said first direction; Wherein, the malfunctioning node of said second malfunctioning node on second direction, finding first;
Said acquisition unit is used for searching unit and second according to first and searches the information that the unit sends, and obtains unreachable nodal information, and wherein, on first direction, the node between first malfunctioning node and second malfunctioning node is unreachable node.
15. the network equipment according to claim 14 is characterized in that, said acquisition module also comprises:
Topology obtains the unit, is used to obtain ring-network topology; And information acquisition unit, fault point is used to obtain fault point information;
Said first searches unit and said second searches the unit according to the ring-network topology of said ring-network topology acquisition unit acquisition and said first malfunctioning node of fault point information searching and said second malfunctioning node of information acquisition unit, said fault point acquisition.
16. the network equipment according to claim 15 is characterized in that, information acquisition unit, said fault point comprises:
Receive subelement, be used to receive the APS APS protocol massages that the adjacent node of fault point sends, carry said fault point information in the said APS protocol massages;
Obtain subelement, be used for obtaining fault point information from the APS protocol massages that said reception subelement receives;
Send subelement, be used for that the fault point information that said acquisition subelement obtains is sent to said first and search unit and said second and search the unit.
17. the network equipment according to claim 15 is characterized in that, said topology obtains the unit and comprises:
Static subelement is used to dispose said ring-network topology; Perhaps,
Dynamically subelement is used for carrying out the mutual of protocol massages through other nodes with looped network, obtains said ring-network topology.
18. the network equipment according to claim 17 is characterized in that, said dynamic subelement comprises:
First handles subelement, is used to receive first kind major diameter APS protocol massages, the node number of said first kind major diameter APS protocol massages process is sent to number of nodes confirm subelement; Wherein, Said first kind major diameter APS protocol massages is from the adjacent node of the said network equipment; Destination node is the said network equipment, and said first kind major diameter APS protocol massages carries the node number of source node information, destination node information and this first kind major diameter APS protocol massages process;
Number of nodes is confirmed subelement, is used for the node number of handling the first kind major diameter APS protocol massages process that subelement sends according to first, confirms the number of nodes in the looped network, and the number of nodes in the fixed looped network is sent to ring-network topology confirms subelement;
Second handles subelement; Be used for sending and/or receiving second type of major diameter APS protocol massages; Write down source node information and destination node information that said second type of APS protocol massages carries, the source node information of carrying in said second type of major diameter APS protocol massages and destination node information are sent to said ring-network topology confirm subelement; Wherein, said second type of major diameter APS protocol massages carries the node number of source node information, destination node information and said second type of major diameter APS protocol massages process; The destination node of said second type of major diameter APS protocol massages is other nodes except that the said network equipment in the looped network;
Said ring-network topology is confirmed subelement, is used for the number of nodes according to the looped network that receives, and the source node information and the destination node information of carrying in said first kind major diameter APS protocol massages and the said second type of major diameter APS protocol massages are confirmed ring-network topology.
19. according to each described network equipment among the claim 13-18; It is characterized in that; Said determination module specifically is used for: according to said unreachable nodal information, in local service information, determine whether to exist link point and/or the following link point business for unreachable node; If exist, confirm that then said business is downtrodden business.
20., it is characterized in that said compression module comprises according to each described network equipment among the claim 13-19:
First press unit is used for based on service channel fixed downtrodden business being suppressed; Perhaps,
Second press unit is used for based on the ring passage fixed downtrodden business being suppressed.
21. the network equipment according to claim 20 is characterized in that, said first press unit specifically is used for: according to the unreachable nodal information that obtains, and local service information, downtrodden business is suppressed.
22. the network equipment according to claim 21 is characterized in that, if professional following link point is unreachable, then said first press unit specifically is used for transmitting stratification invalid flag position at said downtrodden professional incoming interface, abandons said downtrodden business; Perhaps, be said downtrodden business setting life span TTL, wherein, said TTL is less than or equal to predetermined ttl threshold of router
If professional last link point is unreachable, then said first press unit is used for the outgoing interface direction from said downtrodden business, sends alarm indication information AIS or forward direction defective indication FDI downstream.
23. the network equipment according to claim 20 is characterized in that, said second press unit specifically is used for according to downtrodden business, confirms said downtrodden professional corresponding ring passage, to suppressing through the business of said ring channel transfer.
24. the network equipment according to claim 23 is characterized in that, said second press unit is through transmitting the stratification invalidated identification at said ring passage, and the mode that abandons the business that is forwarded to said ring passage is suppressed the business of said ring channel transfer.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210190002.2A CN102801596B (en) | 2012-06-11 | 2012-06-11 | Service processing method for ring network and network equipment |
| PCT/CN2013/072456 WO2013185497A1 (en) | 2012-06-11 | 2013-03-12 | Service processing method and network equipment for ring network |
| JP2015516414A JP5903192B2 (en) | 2012-06-11 | 2013-03-12 | Service processing method and network device in ring network |
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| CN201210190002.2A CN102801596B (en) | 2012-06-11 | 2012-06-11 | Service processing method for ring network and network equipment |
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| CN102801596B CN102801596B (en) | 2015-01-21 |
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Also Published As
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| JP5903192B2 (en) | 2016-04-13 |
| CN102801596B (en) | 2015-01-21 |
| WO2013185497A1 (en) | 2013-12-19 |
| JP2015523793A (en) | 2015-08-13 |
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