CN103812689A - Service transmission protecting method and device based on multi-loop-structured network - Google Patents
Service transmission protecting method and device based on multi-loop-structured network Download PDFInfo
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- CN103812689A CN103812689A CN201210460968.3A CN201210460968A CN103812689A CN 103812689 A CN103812689 A CN 103812689A CN 201210460968 A CN201210460968 A CN 201210460968A CN 103812689 A CN103812689 A CN 103812689A
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Abstract
The embodiment of the invention discloses a service transmission protecting method and device based on a multi-loop-structured network. The method comprises determining the working channel and the protection channel of linear protection in the multi-loop-structured network; respectively configuring a loop protection channel for the working channel and the protection channel of the linear protection in at least one loop network where the working channel and the protection channel of the linear protection passes by; when the working channel and the protection channel of the linear protection in the at least one loop network are in a preset state, inverting the transmission service of the loop protection channel. The embodiment of the invention also discloses a service transmission protecting device based on the multi-loop-structured network. The service transmission protecting method and device based on the multi-loop-structured network can solve or improve the service transmission protecting problem or performance of the liner protection when multiple nodes or node links are in an abnormal state or the like in a multi-loop-structured network environment.
Description
Technical field
The application relates to communication network technology field, particularly relates to business transmission protecting and corresponding device thereof based on multiring structure network.
Background technology
Multiring structure network is made up of at least two Single-ring networks, and this network architecture is a kind of network topology structure that communication technical field is conventional.For other network topology structures, multiring structure network can improve network survivability (Survivability largely, while referring to that network equipment node or node link break down, network within the utmost point short time self-healing to maintain the ability of certain tolerable service level).Based on this specific character, multiring structure latticed form is widely used in setting up the network (such as optical-fiber network, microwave network, Packet Transport Network PTN etc.) that the high protection of miscellaneous service transmission requires.
The business transmission protected mode of multiring structure network mainly comprises linear protection and looped network protection two classes.The former is take each transport service as base unit, configure linear work passage and the protection channel corresponding with each business, link failure between multiring structure network is due to certain node or node and during in abnormal condition, it realizes business normal transmission by switching between service aisle and protection channel independently; The latter is take node on the ring as benchmark, configuration ring service aisle and protection channel in looped network, and when multiring structure network is during in abnormal condition, it realizes business normal transmission by ring service aisle and interchannel the switching of ring protection.In actual application, owing to configuring the more high reason of complicated technology realization, Financial cost of looped network protection mode in multiring structure network, conventionally adopt linear protection mode.
But; at multiring structure net environment; when multinode in different looped networks or in same looped network or node link are in abnormal condition; and when these improper nodes or node link lay respectively in the service aisle of linear protection and protection channel, adopt linear protection mode cannot realize regular traffic transmission.
Summary of the invention
For solving the problems of the technologies described above; the embodiment of the present application provides a kind of business transmission protecting and related device thereof based on multiring structure network, with improve or solve multiring structure net environment adopt linear protection at multinode or node link business transmission protective value or the problem during in abnormal condition.
The business transmission protecting based on multiring structure network that the embodiment of the present application provides comprises:
Determine service aisle and the protection channel of linear protection in multiring structure network;
In the service aisle of linear protection and at least one looped network of protection channel process, configure respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network;
In the time that preset state appears in the service aisle of described at least one looped network internal linear protection and protection channel, be switched to described ring protection channel transfer business.
Preferably, at least one looped network of the described service aisle at linear protection and protection channel process, for configuring respectively ring protection passage, the service aisle of linear protection in this looped network and protection channel comprise:
Next-door neighbour's node to a node of the looped network of ring protection passage to be configured distributes ring channel labels;
According to the ring protection passage of the ring channel labels configuration looped network receiving.
Further preferably, in the time that next-door neighbour's upstream node of a node of the looped network to ring protection passage to be configured distributes ring channel labels, determine the ring protection passage of the updrift side of looped network according to the ring channel labels receiving; In the time that the downstream node of a node of the looped network to ring protection passage to be configured distributes ring channel labels, determine the ring protection passage of the downstream direction of looped network according to the ring channel labels receiving.
Preferably, at least one looped network, configure respectively after ring protection passage for service aisle and the protection channel of linear protection in this looped network, described method also comprises:
Port number described in detecting between the adjacent node of at least one looped network;
In the time that the port number between the adjacent node of described at least one looped network is the first predetermined number; for the unit bandwidth resource of channel allocation second predetermined number of the first predetermined number between this adjacent node; to utilize the unit bandwidth resource transmission business of the second predetermined number distributing while being switched to ring protection passage, described the second predetermined number is less than or equal to the first predetermined number.
Further preferably, described the second predetermined number is 1 part.
Preferably, described multiring structure network comprises Access Layer, convergence-level and core layer, and described at least one looped network is at least one looped network in convergence-level.
The embodiment of the present application also provides the protective device of the business transmission based on multiring structure network.This device comprises: determining unit, dispensing unit and transmission unit, wherein:
Described determining unit, for determining service aisle and the protection channel of linear protection at multiring structure network;
Described dispensing unit, for configuring respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network in the service aisle of linear protection and at least one looped network of protection channel process;
Described transmission unit, in the time that preset state appears in the service aisle of described at least one looped network internal linear protection and protection channel, is switched to described ring protection channel transfer business.
Preferably, described dispensing unit comprises distribution subelement and configuration subelement, wherein:
Described distribution subelement, distributes ring channel labels for next-door neighbour's node of a node of the looped network to ring protection passage to be configured;
Described configuration subelement, for the ring protection passage of the ring channel labels configuration looped network according to receiving.
Further preferably, in the time that described distribution subelement distributes ring channel labels specifically for next-door neighbour's upstream node of a node of the looped network to ring protection passage to be configured, described configuration subelement is specifically for the ring protection passage of the updrift side of the ring channel labels configuration looped network according to receiving; In the time that described distribution subelement distributes ring channel labels specifically for the downstream node of a node of the looped network to ring protection passage to be configured, described configuration subelement is specifically for the ring protection passage of the downstream direction of the ring channel labels configuration looped network according to receiving.
Preferably, described device also comprises port number detecting unit and bandwidth resource allocation unit, wherein:
Described port number detecting unit, for configuring respectively after ring protection passage for service aisle and the protection channel of linear protection in this looped network at least one looped network, the port number described in detecting between the adjacent node of at least one looped network;
Described bandwidth resource allocation unit; while being the first predetermined number for the port number between the adjacent node of described at least one looped network; for the unit bandwidth resource of channel allocation the second predetermined number between this adjacent node; to utilize the unit bandwidth resource transmission business of the second predetermined number distributing when transmission unit is switched to ring protection passage, described the second predetermined number is less than or equal to the first predetermined number.
Further preferably, when described bandwidth resource allocation unit is the first predetermined number specifically for the port number between the adjacent node of described at least one looped network, be 1 part of unit bandwidth resource of the channel allocation between this adjacent node.
Preferably; described multiring structure network comprises Access Layer, convergence-level and core layer, and described dispensing unit is specifically for configuring respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network at least one looped network in the service aisle of linear protection and the convergence-level of protection channel process.
The embodiment of the present application configures respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network in the service aisle of linear protection and at least one looped network of protection channel process; in the time that preset state appears in the service aisle of the linear protection in this looped network and protection channel, be switched to ring protection channel transfer business.Compared with prior art, because the embodiment of the present application adopts linear protection and looped network protection duplicate protection mechanism at least one looped network of multiring structure network, even multinode or node link are in the time that abnormal condition and these improper nodes or node link lay respectively in the service aisle of linear protection and protection channel in different looped networks or in same looped network, also can make full use of the advantage separately of linear protection and looped network protection, carry out business transmission by being switched to ring protection passage, thereby improve or solved multiring structure net environment adopt linear protection at multinode or node link business transmission protective value or the problem during in preset state.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, the accompanying drawing the following describes is only some embodiment that record in the application, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic diagram of multiple spot inefficacy situation when Fig. 1 is multiring structure net environment employing linear protection;
Fig. 2 is the flow chart of an embodiment of the business transmission protecting based on multiring structure network;
Fig. 3 is a kind of schematic network structure of embodiment described in Fig. 2;
Fig. 4 is the flow chart of another embodiment of the business transmission protecting based on multiring structure network;
Fig. 5 is the structured flowchart of the embodiment of the business transmission protective device based on multiring structure network.
Embodiment
In order to make those skilled in the art person understand better the technical scheme in the application, below in conjunction with the accompanying drawing in the embodiment of the present application, technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only the application's part embodiment, rather than whole embodiment.Based on the embodiment in the application, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all should belong to the scope of the application's protection.
As previously mentioned; the in the situation that of multiring structure network using linear protection; when multinode in different looped networks or in same ring or node link are during in abnormal condition, may cause the service aisle of linear protection and protection channel to be all interrupted, thus cannot normal transmission business.The situation that when Fig. 1 shows multiring structure net environment employing linear protection, multiple spot lost efficacy.Multiring structure network comprises Access Network (Access Layer) in the figure, converge net (convergence-level) and core net (core layer) shellring structure, the LSP business of being ordered by O point arrival P comprises two linear passageway, the right side service aisle representing with solid line and the left side protection channel corresponding with this service aisle (note: herein for making figure clear, not shown protection channel, in addition, the two passes of linear protection also can be configured to cross modal), " blast " mark represents that between node, link breaks down, by the fault point of 4 " blast " mark shown in constitutional diagram, fault type can be divided into following three kinds of situations:
Situation one: homonymy multipoint fault in different looped networks, such as: fault point 1 and fault point 3 simultaneous faultss, fault point 2 and fault point 4 simultaneous faultss;
Situation two: heteropleural multipoint fault in different looped networks, such as: fault point 1 and fault point 4 simultaneous faultss, fault point 2 and fault point 4 simultaneous faultss;
Situation three: (heteropleural) multipoint fault in identical looped network, such as: fault point 1 and fault point 2 simultaneous faultss, fault point 3 and fault point 4 simultaneous faultss.
When the business of LSP shown in figure is transmitted, due to the fault point of situation one or occur on the service aisle of LSP business, or occur in protection channel, therefore, can select wherein not have out of order passage to realize the transmission of LSP business.But, for situation two and situation three, because fault point had both occurred on the service aisle of LSP business, occurring in again in protection channel, two passes all cannot normally be worked, thereby can not realize the transmission of LSP business, and the protective effect of LSP service protection passage was lost efficacy.The problems referred to above that may occur for solving multiring structure network using linear protection, the application provides a kind of embodiment of the business transmission protecting based on multiring structure network.Referring to Fig. 2 and Fig. 3, wherein: Fig. 2 shows the flow process of the present embodiment, Fig. 3 shows a kind of network configuration situation of the present embodiment.This embodiment comprises:
Step S201: determine service aisle and the protection channel of linear protection in multiring structure network;
Linear protection for Network be mainly point-to-point service, protected mode is end-to-end protection, the path of the service aisle that Network configures in multiring structure network and protection channel process can be determined in advance creating when this Network collocation channel.If the work of configuration network vocational work passage and protection channel is completed by hand by user, configuration result can be recorded in storage medium, read the service aisle of linear protection and the information of protection channel is determined the routing information of linear protection in multiring structure network by the present embodiment; If the work of configuration network vocational work passage and protection channel is completed by automation equipment; such as webmastering software; can be by automatically calculating service aisle and the protection channel of Network, thus the routing information of automatic acquisition linear protection in multiring structure network.As shown in Figure 3, definite linear protection path is the service aisle that is positioned at right side of being ordered to B by A point and the protection channel that is positioned at left side.
Step S202: configure respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network in the service aisle of linear protection and at least one looped network of protection channel process;
Service aisle by the definite linear protection of abovementioned steps in multiring structure network and protection channel may be through multiple looped networks of multiring structure network; the present embodiment can be chosen in wherein and configure respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network in any looped network; also all looped networks of the service aisle of linear protection and protection channel process all can be carried out to the configuration of ring protection passage, this depends on complexity that technology in real process realizes or the factor such as cost only.Such as, because looped network configuration is had relatively high expectations to device hardware, if multiring structure network comprises Access Layer, the equipment of Access Layer is difficult to support conventionally, so, can in other layers outside Access Layer, configure ring protection passage.As shown in Figure 3, the service aisle of linear protection and protection channel, through three rings of multiring structure, can only in the looped network that converges net, configure ring protection passage, and other two layers do not configure ring protection passage.
Service aisle in looped network of the configuration service aisle of linear protection and protection channel and the ring protection passage of protection channel can have multiple implementation, such as can be take of the looped network of a ring protection passage to be configured node as source node, using with this source node other nodes in same ring as destination node, set up successively two passages between node, thereby form ring protection passage; Can also be take of the looped network of a ring protection passage to be configured node as destination node, other nodes are source node, configuration ring protection passage.In a ring; the service aisle of each node and protection channel can be shared in overlapping part; also can not share; the former can reduce the quantity of service aisle and protection channel as much as possible; although the latter can increase with respect to the quantity of the former service aisle and protection channel; but because the node total quantity in ring is limited, this total number of channels will can infinitely not increase.
Take the looped network that converges net place shown in Fig. 3 as example, this looped network comprises M, N, L node, need now the ring protection protection channel of configuration node M to L section, here the destination node that enters ring using M node as Network describes, M node distributes ring channel labels to its next-door neighbour's node N, N node is set up the ring protection channel section RC1 between MN after receiving this ring channel labels, the like, N node is again to its next-door neighbour's node L initial ring channel labels, request is established to the ring protection passage of M node, L node is set up the ring protection channel section RC2 between LN after receiving this ring channel labels, form by L the ring protection channel section to M by two ring protection channel sections.It should be noted that: be the clockwise logic box protection channel of setting up take M as destination node here, in practical application, also can set up take M as destination node counterclockwise ring protection passage, or the ring protection passage of both direction all set up.In the time that upstream node from the node next-door neighbour to ring protection passage to be configured distributes ring channel labels, determine the ring protection passage of the updrift side of looped network according to the ring channel labels receiving; In the time that downstream node from the node next-door neighbour to ring protection passage to be configured distributes ring channel labels, determine service aisle and the protection channel of the downstream direction of looped network according to the ring channel labels receiving.Here " upstream " is relative concept with " downstream ", and take a direction as " upstream ", it is " downstream " in the other direction.If upstream and downstream direction all configures ring protection passage, the node in a looped network can be set up at most 4 the ring protection passages corresponding with it.
Step S203: in the time that preset state appears in the service aisle of described at least one looped network internal linear protection and protection channel, be switched to described ring protection channel transfer business.
Service aisle and protection channel and its ring protection passage formation pair of channels group that respectively configure of linear protection in looped network; Network can select a passage to carry out business transmission under a kind of state of looped network node link; after this state changes, can switch to another passage and carry out business transmission.Such as the service aisle of present Network waiting for transmission goes wrong, select the protection channel transport service of linear protection, and certain node link in this protection channel also breaks down after selection protection channel, the state of looped network node link is changed, the Network of protection channel transmission that originally can be by this linear protection is transmitted switching on the ring protection passage of this protection channel, and the malfunctioning node link of working as in the protection channel of linear protection is repaired, the state of looped network node link changes again, the protection channel that can switch back linear protection by the Network of ring protection channel transfer is transmitted.Network can still be transmitted according to the mode of linear protection in the business transmission of other Single-ring networks that ring protection passage is not set.The preset state here can be any state that need to carry out channel switching determined according to actual conditions, and under normal circumstances, this preset state can be preset as malfunction.
The present embodiment configures respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network in the service aisle of linear protection and at least one looped network of protection channel process; in the time that preset state appears in the service aisle of the linear protection in this looped network and protection channel, be switched to ring protection channel transfer business.Compared with prior art, because the present embodiment adopts linear protection and looped network protection duplicate protection mechanism at least one looped network of multiring structure network, even multinode or node link are in the time that abnormal condition and these improper nodes or node link lay respectively in the service aisle of linear protection and protection channel in different looped networks or in same looped network, also can make full use of the advantage separately of linear protection and looped network protection, carry out business transmission by being switched to ring protection passage, thereby solve or improved multiring structure net environment adopt linear protection at multinode or node link business transmission protection problem or the performance during in preset state.
Previous embodiment occurs in multiring structure network that by improving or solve for the service aisle of linear protection in looped network and protection channel configuration ring protection channel mode the business under multiple spot inefficacy situation transmits protection problem or performance.But may there is repetition in the ring protection passage of configuration here, causes the waste of bandwidth resources.Reason is:
In the time only adopting linear protection; in service aisle and protection channel, there are double service traffics; in the situation that total bandwidth resource is 2G; service aisle distributes the unit bandwidth resource of 1G if; correspondingly; protection channel is also distributed 1G bandwidth, " selects one " and uses due to service aisle and protection channel, and network bandwidth resources utilance is 50%.In the time only adopting looped network protection; the two-way pressed on ring of business; dispose a ring protection passage for switching fault business in the other direction; co-exist in 4 passages; if clockwise direction ring service aisle distributes 0.5G bandwidth, the counterclockwise corresponding distribution of environmental protection passage 0.5G bandwidth, counterclockwise service aisle distributes 0.5G bandwidth; the corresponding distribution of clockwise direction protection channel 0.5G bandwidth, network bandwidth utilization factor when two-way pressed on ring is also 50%.And while adopting " two protection " mechanism of linear protection and looped network protection according to previous embodiment; because service aisle and the protection channel of consolidated network business linear protection have all been configured a ring protection passage in looped network protection mechanism; two service aisles across same business in section (such as the MN of Fig. 3 is across section) and two protection channels are (for looped network; the protection channel of linear protection is regarded as service aisle) exist simultaneously; when each passage distributes same band, network bandwidth utilization factor is only 25%.As can be seen here, adopting under " duplicate protection " mechanism of linear protection and looped network protection, may occur the problem that bandwidth resources utilance declines.For addressing this problem, the application further improves on above-described embodiment basis, has proposed the embodiment of following another business transmission protecting based on multiring structure network.Referring to Fig. 4, the figure shows the flow process of this embodiment.This embodiment comprises:
Step S401: determine service aisle and the protection channel of linear protection in multiring structure network;
Step S402: configure respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network in the service aisle of linear protection and at least one looped network of protection channel process;
For ease of explanation; here take LSP business as example; service aisle by LSP business linear protection on looped network is designated as wLSP_wRing; protection channel by LSP business linear protection on looped network is designated as wLSP_pRing; the ring protection passage configuring for the service aisle of protection LSP business on looped network is designated as to pLSP_wRing; the ring protection passage configuring for the protection channel of protection LSP business on looped network is designated as to pLSP_pRing, can occurs at least following combination of channels same across section (part in looped network between adjacent node):
WLSP_wRing and pLSP_pRing
PLSP_wRing and wLSP_pRing
PLSP_pRing and wLSP_pRing
Step S403: the port number described in detecting between the adjacent node of at least one looped network;
For same LSP business, by travel through piecemeal detect find looped network respectively across section may exist following 3 kinds combination 6 port numbers:
WLSP_wRing and pLSP_pRing
PLSP_wRing and wLSP_pRing
PLSP_pRing and wLSP_pRing
Step S404: in the time that the port number between the adjacent node of described at least one looped network is the first predetermined number, for the unit bandwidth resource of channel allocation second predetermined number of the first predetermined number between this adjacent node, described the second predetermined number is less than or equal to the first predetermined number;
Can obtain the port number between each adjacent node in Single-ring network by detecting, in the time that port number is the first predetermined number, the unit bandwidth resource of distributing the second predetermined number that is less than or equal to the first predetermined number for these port numbers, the wide resource of so-called unit list is the minimum bandwidth of predefined resource umber, such as, can be 0.5G, can be also 1G, and it depends on the factor such as total business volume and the bandwidth total resources situation of current network that multiring structure network can carry.This step has shown the feature of two aspects:
The one, the Starting mode of the unit bandwidth resource of distribution the second predetermined number, which is to only have port number when between adjacent node to reach the first predetermined number just to start the sharing out the work of unit bandwidth resource of the second predetermined number, that is to say, even if the port number between adjacent node is more, but also under the first predetermined number time, if current network bandwidth total resources can also bear the transformation task of Network, can not carry out the distribution of the unit bandwidth resource of the second predetermined number, still be each channel allocation unit bandwidth resource separately, such as, there are 4 passages, distribute 4 parts of unit bandwidth resources.First predetermined number here can be set according to actual conditions.
The 2nd, the restricted number of the unit bandwidth resource of distribution the second predetermined number, this quantity must meet the condition that the second predetermined number is less than or equal to the first predetermined number, such as, if the current port number of certain adjacent node of looped network is 1, it is 1 part of unit bandwidth resource of this channel allocation, if the current port number of certain adjacent node of looped network is 6, can be 6,5,4,3,2 parts of unit bandwidth resources of these 6 channel allocations, even also only distribute 1 part of unit bandwidth resource.Here which kind of quantity " the second predetermined number " selects on earth, depend on the Consideration in actual application, such as, when using network resource utilization as major consideration, can the second predetermined number be arranged smallerly as much as possible, when the data throughout of Network transmission during as major consideration, can be arranged largerly by the second predetermined number as far as possible.But, no matter select the unit bandwidth resource of which kind of second predetermined number part, as long as meeting, its quantity is less than or equal to this constraints of the first predetermined number, just can save on the whole network bandwidth resources, improve the utilance of bandwidth resources.
Step S405: in the time that preset state appears in the service aisle of described at least one looped network internal linear protection and protection channel, be switched to the unit bandwidth resource transmission business of the second predetermined number that the utilization of ring protection passage distributes;
After distribution by aforesaid bandwidth resources, the umber of the unit bandwidth resource between the adjacent node on looped network is less than or equal to the port number of this adjacent node, due to not transmitting network data simultaneously of these different passages, therefore, the bandwidth resources of distribution do not hinder the normal transmission of transport service.In the time there is preset state in the service aisle of at least one looped network internal linear protection and protection channel, such as, when multiple spot lost efficacy (or multipoint fault), be switched to the unit bandwidth resource transmission business of the second predetermined number that the utilization of ring protection passage distributes.
Above content is the description of the embodiment of the method to the application, and correspondingly, the application also provides device embodiment.Referring to Fig. 5, the figure shows the business transmission protective device of the application based on multiring structure network.This device embodiment comprises: determining unit 501, dispensing unit 502 and transmission unit 503, wherein:
Determining unit 501, for determining service aisle and the protection channel of linear protection at multiring structure network;
The course of work of this device embodiment is: determining unit 501 is being determined after the service aisle and protection channel of linear protection in multiring structure network; respectively configure ring protection passage with protecting at least one looped network stimulating the menstrual flow for service aisle and the protection channel of linear protection in this looped network at the service aisle of linear protection by dispensing unit 502; then; when preset state appears in the service aisle that transmission unit 503 is protected in described at least one looped network internal linear and protection channel, be switched to described ring protection channel transfer business.
This device embodiment protects service aisle and protection channel in this looped network to configure respectively ring protection passage at the service aisle of linear protection and at least one looped network internal linear of protection channel process; in the time there is preset state in the service aisle of the linear protection in this looped network and protection channel, based on the ring protection channel transfer business of configuration.Compared with prior art, because this device embodiment adopts linear protection and looped network protection duplicate protection mechanism at least one looped network of multiring structure network, even multinode or node link are in the time that abnormal condition and these improper nodes or node link lay respectively in the service aisle of linear protection and protection channel in different looped networks or in same looped network, also can make full use of the advantage separately of linear protection and looped network protection, carry out business transmission by being switched to ring protection passage, thereby solve or improved multiring structure net environment adopt linear protection at multinode or node link business transmission protection problem or the performance during in preset state.。
Dispensing unit 502 in said apparatus embodiment can have different internal structures according to the mode of different configuration ring protection passages.Such as can comprising,, dispensing unit 502 distributes subelement 5021 and configuration subelement 5022, wherein: and label distribution subelement 5021, distributes ring channel labels for next-door neighbour's node of a node of the looped network to ring protection passage to be configured; Passage configuration subelement 5022, for the ring protection passage of the ring channel labels configuration looped network according to receiving.In the time distributing subelement 5021 to distribute ring channel labels specifically for next-door neighbour's upstream node of a node of the looped network to ring protection passage to be configured, configuration subelement 5022 is specifically for the ring protection passage of the updrift side of the ring channel labels configuration looped network according to receiving; In the time distributing subelement 5021 to distribute ring channel labels specifically for the downstream node of a node of the looped network to ring protection passage to be configured, configuration subelement 5022 is specifically for the ring protection passage of the downstream direction of the ring channel labels configuration looped network according to receiving.The ring protection passage configuring by above-mentioned label scheme, take looped network (each node) as basis, does not rely on the transport service on looped network, and can configure two-way 4 passages, thereby as much as possible guarantee business normal transmission on looped network.
Said apparatus embodiment is not limited to as the service aisle of linear protection and protection channel configure after ring protection passage on looped network, if the quantity of ring protection passage is more, these interchannels are the problem of utilized bandwidth resource how.Owing to thering is certain dependence between these passages; can not work simultaneously; each ring protection passage of configuration is divided equally and is joined bandwidth resources if, although can improve transmission level of protection, is unfavorable for the saving of bandwidth resources and the raising of bandwidth resources utilance.Given this, the device of above-described embodiment can also comprise port number detecting unit 504 and bandwidth resource allocation unit 505, wherein: port number detecting unit 504, for configuring respectively after ring protection passage for service aisle and the protection channel of linear protection in this looped network at least one looped network, the port number described in detecting between the adjacent node of at least one looped network; Bandwidth resource allocation unit 505; while being the first predetermined number for the port number between the adjacent node of described at least one looped network; for the unit bandwidth resource of channel allocation the second predetermined number between this adjacent node; to utilize the unit bandwidth resource transmission business of the second predetermined number distributing when transmission unit is switched to ring protection passage, described the second predetermined number is less than or equal to the first predetermined number.Second predetermined number here can be 1 part, when bandwidth resource allocation unit 505 is the first predetermined number specifically for the port number between the adjacent node of described at least one looped network, is 1 part of unit bandwidth resource of the channel allocation between this adjacent node.Because the umber of unit bandwidth resource distributing is less than or equal to the number of passage, therefore, can improve generally the utilance of Internet resources.
Above-described embodiment does not limit the specific constructive form of multiring structure network; even now does not hinder the realization of the present application object; but; in actual application; consider the factor such as complexity and Financial cost of configuration looped network, may select only on certain a part of looped network, to carry out the configuration of ring protection passage.Such as; in the time that multiring structure network comprises Access Layer, convergence-level and core layer; dispensing unit 502 can be specifically for configuring respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network at least one looped network of the convergence-level of stimulating the menstrual flow in the service aisle of linear protection and protection, and other Access Layer and core layer still only adopt linear protection mechanism.
For convenience of description, while describing above device, being divided into various unit with function describes respectively.Certainly, in the time implementing the application, the function of each unit can be realized in same or multiple software and/or hardware.Such as, all functional units can be formed to a single unit system, for controlling the Network transmission in whole multiring structure network, all functional units can also be distributed to each Single-ring network (each node) upper, cooperatively interact and realize the allomeric function of this device embodiment by these looped networks (node) functional unit separately.
As seen through the above description of the embodiments, those skilled in the art can be well understood to the mode that the application can add essential general hardware platform by software and realizes.Based on such understanding, the part that the application's technical scheme contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) carry out the method described in some part of each embodiment of the application or embodiment.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, what each embodiment stressed is and the difference of other embodiment.Especially,, for system embodiment, because it is substantially similar in appearance to embodiment of the method, so describe fairly simplely, relevant part is referring to the part explanation of embodiment of the method.System embodiment described above is only schematic, the wherein said unit as separating component explanation can or can not be also physically to separate, the parts that show as unit can be or can not be also physical locations, can be positioned at a place, or also can be distributed in multiple network element.Can select according to the actual needs some or all of module wherein to realize the object of the present embodiment scheme.Those of ordinary skills, in the situation that not paying creative work, are appreciated that and implement.
The application can be used in numerous general or special purpose computingasystem environment or configuration.For example: personal computer, server computer, handheld device or portable set, plate equipment, multicomputer system, system, set top box, programmable consumer-elcetronics devices, network PC, minicom, mainframe computer based on microprocessor, comprise distributed computing environment (DCE) of above any system or equipment etc.
The application can describe in the general context of the computer executable instructions of being carried out by computer, for example program module.Usually, program module comprises and carries out particular task or realize routine, program, object, assembly, data structure of particular abstract data type etc.Also can in distributed computing environment (DCE), put into practice the application, in these distributed computing environment (DCE), be executed the task by the teleprocessing equipment being connected by communication network.In distributed computing environment (DCE), program module can be arranged in the local and remote computer-readable storage medium including memory device.
The above is only the application's embodiment; it should be pointed out that for those skilled in the art, do not departing under the prerequisite of the application's principle; can also make some improvements and modifications, these improvements and modifications also should be considered as the application's protection range.
Claims (12)
1. the business transmission protecting based on multiring structure network, is characterized in that, the method comprises:
Determine service aisle and the protection channel of linear protection in multiring structure network;
In the service aisle of linear protection and at least one looped network of protection channel process, configure respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network;
In the time that preset state appears in the service aisle of described at least one looped network internal linear protection and protection channel, be switched to described ring protection channel transfer business.
2. method according to claim 1, is characterized in that, at least one looped network of the described service aisle at linear protection and protection channel process, comprises for the service aisle of linear protection in this looped network and protection channel configure respectively ring protection passage:
Next-door neighbour's node to a node of the looped network of ring protection passage to be configured distributes ring channel labels;
According to the ring protection passage of the ring channel labels configuration looped network receiving.
3. method according to claim 2, is characterized in that, in the time that next-door neighbour's upstream node of a node of the looped network to ring protection passage to be configured distributes ring channel labels, determines the ring protection passage of the updrift side of looped network according to the ring channel labels receiving; In the time that the downstream node of a node of the looped network to ring protection passage to be configured distributes ring channel labels, determine the ring protection passage of the downstream direction of looped network according to the ring channel labels receiving.
4. method according to claim 1, is characterized in that, at least one looped network, configures respectively after ring protection passage for service aisle and the protection channel of linear protection in this looped network, and described method also comprises:
Port number described in detecting between the adjacent node of at least one looped network;
In the time that the port number between the adjacent node of described at least one looped network is the first predetermined number; for the unit bandwidth resource of channel allocation second predetermined number of the first predetermined number between this adjacent node; to utilize the unit bandwidth resource transmission business of the second predetermined number distributing while being switched to ring protection passage, described the second predetermined number is less than or equal to the first predetermined number.
5. method according to claim 4, is characterized in that, described the second predetermined number is 1 part.
6. according to the method described in any one in claim 1 to 5, it is characterized in that, described multiring structure network comprises Access Layer, convergence-level and core layer, and described at least one looped network is at least one looped network in convergence-level.
7. the transmission of the business based on a multiring structure network protective device, is characterized in that, this device comprises: determining unit, dispensing unit and transmission unit, wherein:
Described determining unit, for determining service aisle and the protection channel of linear protection at multiring structure network;
Described dispensing unit, for configuring respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network at least one looped network stimulating the menstrual flow in service aisle and the protection of linear protection;
Described transmission unit, in the time that preset state appears in the service aisle of described at least one looped network internal linear protection and protection channel, is switched to described ring protection channel transfer business.
8. device according to claim 7, is characterized in that, described dispensing unit comprises distribution subelement and configuration subelement, wherein:
Described distribution subelement, distributes ring channel labels for next-door neighbour's node of a node of the looped network to ring protection passage to be configured;
Described configuration subelement, for the ring protection passage of the ring channel labels configuration looped network according to receiving.
9. device according to claim 8, it is characterized in that, in the time that described distribution subelement distributes ring channel labels specifically for next-door neighbour's upstream node of a node of the looped network to ring protection passage to be configured, described configuration subelement is specifically for the ring protection passage of the updrift side of the ring channel labels configuration looped network according to receiving; In the time that described distribution subelement distributes ring channel labels specifically for the downstream node of a node of the looped network to ring protection passage to be configured, described configuration subelement is specifically for the ring protection passage of the downstream direction of the ring channel labels configuration looped network according to receiving.
10. device according to claim 7, is characterized in that, described device also comprises port number detecting unit and bandwidth resource allocation unit, wherein:
Described port number detecting unit, for configuring respectively after ring protection passage for service aisle and the protection channel of linear protection in this looped network at least one looped network, the port number described in detecting between the adjacent node of at least one looped network;
Described bandwidth resource allocation unit; while being the first predetermined number for the port number between the adjacent node of described at least one looped network; for the unit bandwidth resource of channel allocation the second predetermined number between this adjacent node; to utilize the unit bandwidth resource transmission business of the second predetermined number distributing when transmission unit is switched to ring protection passage, described the second predetermined number is less than or equal to the first predetermined number.
11. devices according to claim 10, it is characterized in that, when described bandwidth resource allocation unit is the first predetermined number specifically for the port number between the adjacent node of described at least one looped network, it is 1 part of unit bandwidth resource of the channel allocation between this adjacent node.
12. according to the device described in any one in claim 7 to 11; it is characterized in that; described multiring structure network comprises Access Layer, convergence-level and core layer, and described dispensing unit is specifically for configuring respectively ring protection passage for service aisle and the protection channel of linear protection in this looped network at least one looped network in the service aisle of linear protection and the convergence-level of protection channel process.
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| CN201210460968.3A CN103812689B (en) | 2012-11-15 | 2012-11-15 | Business transmission protecting and device based on multiring structure network |
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| CN201210460968.3A CN103812689B (en) | 2012-11-15 | 2012-11-15 | Business transmission protecting and device based on multiring structure network |
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| CN103812689B (en) | 2017-05-31 |
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