CN109257663A - A kind of optical path alignment method and system towards more rail networks - Google Patents
A kind of optical path alignment method and system towards more rail networks Download PDFInfo
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- CN109257663A CN109257663A CN201810972682.0A CN201810972682A CN109257663A CN 109257663 A CN109257663 A CN 109257663A CN 201810972682 A CN201810972682 A CN 201810972682A CN 109257663 A CN109257663 A CN 109257663A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0005—Switch and router aspects
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Abstract
The present invention relates to a kind of optical path alignment method and systems towards more rail networks, comprising: obtains multiple relaying light path switches, multiple terminal light path switches and multiple more rail server nodes to optical path communication, the sum of terminal light path switch is m；Using the electric switching node of more rail server nodes as terminal, each more rail server nodes have the set of terminal being made of k terminal, and each terminaling exchange is connected by N number of terminal interconnection port that it has with n set of terminal；Obtain the sum of relaying light path switchBy by m terminal light path switchA relay interconnection port withA m relay interconnection port of relaying light path switch is interconnected, and obtains optical path single track interconnection system；It is examined successively between two terminal interconnection ports whether with idle fixed link, to obtain the more rail interconnection systems of optical path；Any two terminal room carries out optical path alignment by the more rail interconnection systems of optical path, to complete optical path communication.
Description
Technical field
The present invention relates to data centers and computer interconnection field, in particular to one kind is towards more rails (more planes) network
Optical path alignment method and system.
Background technique
Since light network has the characteristics that the high and low bit error rate of dynamic and configurable, transmission bandwidth, low-power consumption, full light network net
Network (AON, All Optical Network) and photoelectricity hybrid network (Electrical/optical Hybrid Switching
Network more and more researchs) have been attracted.In addition to inter-cluster network interconnection design, in the design of network-on-chip, at present
There is the design that configurable optical path interconnection devices are added.
It is currently employed for the optical interconnection system of data center, supercomputer cluster or network-on-chip, either opto electronic hybrid configuration
Or full light structural, common light network method are mainly based upon optical crossbar switch (OXC, Optical Cross
Connection different terminal equipment (including network interface card or electric interchanger)) is subjected to dynamic light path interconnection.
When needing the port number being interconnected to increase, the optical crossbar switch device of more multiport is needed.Therefore, at present
Dynamic optical interconnection network based on OXC is established in erection process, is often limited to the port of this device of optical crossbar switch
Quantity.Design at present and the mainstream technology for building this device of optical crossbar switch be divided into DBS (change light emitting source angle) technology and
Two kinds of technology of 3D MEMS (changing mirror surface angle).But all there is day in port number in either which kind of technology, this equipment
Card problem.DBS technology optical crossbar switch equipment produced is at present only up to 384 ports, and 3D MEMS technology is produced
Optical crossbar switch equipment is at present also only up to 320 ports.The main reason for device port limited amount, is derived from existing at present
Manufacture craft, by taking DBS technology as an example: can change the angle of light emitting source using the voltage control to piezoelectric ceramics, be achieved in
The principle of point-to-point gating in optical crossbar switch.But if necessary to integrated more port, the control of light source incline angle is just
Need more accurate (effective angle range can be smaller).As port number rises, voltage needed for piezoelectric ceramics is controlled also just
It needs more accurate.If it is desired to use the light of a multiport when constructing " optical path interconnection " network of the above scale in 384 ports
Crossbar switch is the networking requirements for being unable to satisfy light network, while this method for setting up extensive optical path interconnection system
Do not have scalability yet.
Traditional " full connection " although formula optical interconnected structure can use the optical crossbar switch of a small amount of port, construct technique without
The multiport optical crossbar switch that method produces forms extensive optical path interconnection system.But this " full connection " formula interconnection structure
It is to be come out using sacrificing a large amount of optical path alignment units as constructed by cost, itself can waste potentially large number of optical circuit path.
Mass data center and Supercomputer Center all use the design of " single server multichannel communication multiple telecommunication ", this design knot at present
Structure is referred to as " more rails " or " more planes " interconnection structure extensively.In this design, each server and other servers will be into
When row communication, there is more than one communication paths.Typical Physical realization is: server has muti-piece network interface card, service
Every piece of network interface card of device has the network interface card of muti-piece multiport with more than one communication port, server.
Summary of the invention
Specifically, the invention discloses a kind of optical path alignment method towards more rail networks, including:
Step 1 obtains multiple relaying light path switches, multiple terminal light path switches and multiple more rails to optical path communication
Server node, wherein the sum of the terminal light path switch is m；
Step 2, using the electric switching node of more rail server nodes as terminal, each more rail server nodes have by k
The set of terminal that a terminal is constituted, the N number of terminal interconnection port and n set of terminal phase that each terminaling exchange has by it
Even；
Step 3, the sum for obtaining the relaying light path switchBy by the m terminal light path switch
A relay interconnection port withA m relay interconnection port of the relaying light path switch is interconnected, and it is mutual to obtain optical path single track
Link system；
Step 4 is examined successively according to the priority of terminal interconnection port in optical path single track interconnection system, checks that two terminals are mutual
Even whether there is idle fixed link between port, connects the fixed link and obtain the more rail interconnection systems of optical path；
Step 5, any two terminal room carry out optical path alignment by the more rail interconnection systems of the optical path, to complete more rail servers
Optical path communication between node.
The optical path alignment method towards more rail networks, wherein the content of the inspection specifically includes in step 4: if different
There is idle fixed link, then by the relay interconnection end of terminal interconnection port and the fixed link between two terminal light path switches
Mouth is connected to, directly will be whole if two terminal interconnection ports in same terminal light path switch need to carry out more rail interconnection
End interconnection port is interconnected in the terminal light path switch.
The optical path alignment method towards more rail networks, the wherein interconnection process of the step 3 specifically: by number be " j "
Should be after the relay interconnection port that the number of light path switch is " i ", number with the terminal light path switch that number is " i "
It is interconnected for the relay interconnection port of " j ".
The optical path alignment method towards more rail networks, wherein any two terminal room passes through the more rails of the optical path in the step 5
Interconnection system carries out optical path alignment and specifically includes:
Judge whether two terminals are connected with same terminal light path switch, if so, by controlling the terminal optical path alignment
The terminal interconnection port that two terminals are connected is interconnected by the optical crossbar switch of machine, otherwise sequentially traverses relay interconnection port,
The relay interconnection port all idle in two terminal light path switches is selected, is handed over by the light of two terminal light path switches of control
Fork is closed, respectively by the terminal interconnection port and selected relay interconnection port progress light inside two terminal light path switches
Road interconnection.
The optical path alignment method towards more rail networks, wherein the fixed link of the free time is mutual to meet single track in step 4
It is even outer, it still can establish the resource of optical path interconnection.
The invention also discloses a kind of optical path alignment system towards more rail networks, including:
Terminal connecting module, for obtaining multiple relaying light path switches, multiple terminal light path switches and leading to optical path
Multiple more rail server nodes of letter, wherein the sum of the terminal light path switch is m；By the electricity exchange of more rail server nodes
For node as terminal, each more rail server nodes have the set of terminal being made of k terminal, and each terminaling exchange passes through
Its N number of terminal interconnection port having is connected with n set of terminal；
Single track interconnecting modules, for obtaining the sum of the relaying light path switchIt is handed over by the terminal optical path by m
It changes planesA relay interconnection port withA m relay interconnection port of the relaying light path switch is interconnected, and is obtained
Optical path single track interconnection system；
More rail interconnecting modules, are used for, and are examined successively according to the priority of terminal interconnection port in optical path single track interconnection system,
It checks between two terminal interconnection ports whether there is idle fixed link, connects the fixed link and obtain the more rails of optical path and mutually link
System；
Optical path alignment module, for making any two terminal room carry out optical path alignment by the more rail interconnection systems of the optical path, with
Complete the optical path communication between more rail server nodes.
The optical path alignment system towards more rail networks, wherein the content of the inspection specifically includes in more rail interconnecting modules:
It, will be in terminal interconnection port and the fixed link if having idle fixed link between two different terminal light path switches
It is connected to after interconnection port, if two terminal interconnection ports in same terminal light path switch need to carry out more rail interconnection,
Directly terminal interconnection port is interconnected in the terminal light path switch.
The optical path alignment method towards more rail networks, the wherein interconnection process of the single track interconnecting modules specifically: will compile
Number for " j " should after light path switch number be " i " relay interconnection port, be the terminal optical path alignment of " i " with number
The number of machine is that the relay interconnection port of " j " is interconnected.
The optical path alignment method towards more rail networks, wherein any two terminal room passes through the light in the optical path alignment module
The more rail interconnection systems in road carry out optical path alignment and specifically include:
Judge whether two terminals are connected with same terminal light path switch, if so, by controlling the terminal optical path alignment
The terminal interconnection port that two terminals are connected is interconnected by the optical crossbar switch of machine, otherwise sequentially traverses relay interconnection port,
The relay interconnection port all idle in two terminal light path switches is selected, is handed over by the light of two terminal light path switches of control
Fork is closed, respectively by the terminal interconnection port and selected relay interconnection port progress light inside two terminal light path switches
Road interconnection.
The optical path alignment system towards more rail networks, wherein the fixed link of the free time is to meet outside single track interconnection, still
The resource of optical path interconnection can so be established.
The technical advantage that the present invention has includes: the expansible with port of the optical interconnection system structure that the present invention establishes
Property, scalability refers to the limitation upper limit without whole port scale, it can sets up the optical interconnection system of arbitrary port scale；
The utilization rate of optical circuit path can be improved by single track and the interconnection of more rails.
Detailed description of the invention
Fig. 1 is the heavy optical interconnection system schematic towards more rail networks；
Fig. 2 is the heavy optical interconnection structure chart with port scalability；
Fig. 3 is the port diagnostic schematic diagram of two classes " sub-light path switching mechanism "；
Fig. 4 is the parameter optimization method flow chart of optical path interconnection system；
Fig. 5 is that more rails interconnect usage scenario schematic diagram；
Fig. 6 is terminal room dynamic optical interconnection implementation method flow figure.
Specific embodiment
The present invention proposes a kind of extensive optical path alignment system and construction method towards more rail networks, includes three submodules
Block: sub-light interchanger type selecting and port classifications module, single track and more rail link interconnecting modules, terminal room dynamic optical link interconnect mould
Block.
Sub-light interchanger type selecting and port classifications module are mainly responsible for the sub-light interchanger choosing to heavy optical interconnection system
Type and interconnection port are classified.Finally, thus the heavy optical interconnection system of optional parameters can be obtained in module, for single track and more rail chains
Road interconnecting modules use.Wherein, optional parameters is extensive optical path interconnection system completion networking hereinafter, it is also necessary to be determined
" m ", " N " and " k " three parameters.
Single track and more rail link interconnecting modules, for the purpose of less interconnection system optical port sum, the single track of optimization is interconnected
Optional parameters.In addition to this, according to surplus resources, the fixed interconnecting link of sub-light inter-exchange and more rail links are carried out mutual
Even.Finally, thus module is available not yet gates the heavy optical interconnection system that link is dynamically interconnected, for terminal room dynamic optical chain
Road interconnecting modules use.Wherein, surplus resources refer to the light path resource that still can be established in addition to meeting single track interconnection
Terminal room dynamic optical link interconnecting modules adjust dynamic optical interconnection link according to light network demand between terminal node
Connection relationship, thus achievable complete heavy optical interconnection system.
Specifically, the invention discloses a kind of optical path alignment method towards more rail networks, including:
Step 1 obtains multiple relaying light path switches, multiple terminal light path switches and multiple more rails to optical path communication
Server node, wherein the sum of the terminal light path switch is m；
Step 2, using the electric switching node of more rail server nodes as terminal, each more rail server nodes have by k
The set of terminal that a terminal is constituted, the N number of terminal interconnection port and n set of terminal phase that each terminaling exchange has by it
Even；
Step 3, the sum for obtaining the relaying light path switchBy by the m terminal light path switch
A relay interconnection port withA m relay interconnection port of the relaying light path switch is interconnected, and it is mutual to obtain optical path single track
Link system；
Step 4 is examined successively according to the priority of terminal interconnection port in optical path single track interconnection system, checks that two terminals are mutual
Even whether there is idle fixed link between port, connects the fixed link and obtain the more rail interconnection systems of optical path；
Step 5, any two terminal room carry out optical path alignment by the more rail interconnection systems of the optical path, to complete more rail servers
Optical path communication between node.
The optical path alignment method towards more rail networks, wherein the content of the inspection specifically includes in step 4: if different
There is idle fixed link, then by the relay interconnection end of terminal interconnection port and the fixed link between two terminal light path switches
Mouth is connected to, directly will be whole if two terminal interconnection ports in same terminal light path switch need to carry out more rail interconnection
End interconnection port is interconnected in the terminal light path switch.
The optical path alignment method towards more rail networks, the wherein interconnection process of the step 3 specifically: by number be " j "
Should be after the relay interconnection port that the number of light path switch is " i ", number with the terminal light path switch that number is " i "
It is interconnected for the relay interconnection port of " j ".
The optical path alignment method towards more rail networks, wherein any two terminal room passes through the more rails of the optical path in the step 5
Interconnection system carries out optical path alignment and specifically includes:
Judge whether two terminals are connected with same terminal light path switch, if so, by controlling the terminal optical path alignment
The terminal interconnection port that two terminals are connected is interconnected by the optical crossbar switch of machine, otherwise sequentially traverses relay interconnection port,
The relay interconnection port all idle in two terminal light path switches is selected, is handed over by the light of two terminal light path switches of control
Fork is closed, respectively by the terminal interconnection port and selected relay interconnection port progress light inside two terminal light path switches
Road interconnection.
The optical path alignment method towards more rail networks, wherein the fixed link of the free time is mutual to meet single track in step 4
It is even outer, it still can establish the resource of optical path interconnection.
To allow features described above and effect of the invention that can illustrate more clearly understandable, special embodiment below, and cooperate
Bright book attached drawing is described in detail below.
As shown in Figure 1, the present invention includes three submodules: sub-light interchanger type selecting and port classifications module, single track and more
Rail link interconnecting modules, terminal room dynamic optical link interconnecting modules.
For sub-light interchanger type selecting and port classifications module, the present invention proposes a kind of big rule with port scalability
Mould optical interconnection system structure, scalability refer to the limitation upper limit without whole port scale, it can set up arbitrary port rule
The optical interconnection system of mould, as shown in Figure 2.Its feature has following three:
1) overall structure of extensive optical path interconnection system: entire optical path interconnection system is filled to multiport optical crossbar switch
Thus the substitute set avoids the limitation due to manufacture craft and cannot achieve the network structure that multiport optical path interconnects.With it is more
Port optical crossbar switch is identical, extensive optical path interconnection system can by changing internal optical path connection relationship, no matter other not
In the case that whether associated terminal port interconnects, it can guarantee that any two external terminals can establish optical path interconnection.
2) principle of classification of sub-light path switching mechanism: there are several light with a small amount of port inside extensive optical path interconnection system
Path switching mechanism (optical crossbar switch) composition.These light path switches are all the important components for forming extensive optical path interconnection system,
It is referred to as " sub-light path switching mechanism ".It is divided into two classes according to interconnection, it may be assumed that relaying light path switch and terminal light path switch.
, as relay, the terminal for will not belong to same terminal light path switch is interconnected for the former；The latter is whole as connection
The optical path alignment device at end.When server uses more rail interconnection structures, each server will (electricity exchanges section with multiple terminals
Point) it is connected.Multiple terminals will also be under the jurisdiction of the same server simultaneously, and it is as shown in Figure 3 to form one " set of terminal " (Group).
It is under the jurisdiction of in the group of the same server, each terminal is by the potential optical path interconnection path as the server.
3) the number setting principle of light path switch is relayed: to guarantee that there is full connection interconnection feature between server, each
At least there is a terminal that can establish optical path in set of terminal.Belong to similar light path switch for port number having the same
Mesh, and shared " m " a terminal light path switch is set, each terminal light path switch has " n " a terminal interconnection port connection
" set of terminal ".
Since more rail interconnection structures will often guarantee the harmony of more rail number of links between server, in each " set of terminal "
Terminal number be disposed as it is identical, as all having " k " a terminal in each set of terminal.Each terminal light path switch is shared
" N " a terminal interconnection port, and have following relationship: N=k × n.
Then the optical port demand that can be used for connecting terminal of entire extensive optical path interconnection system is " C ", then has satisfactionN and k is to need the user-defined optional configuration item parameter of networking, and n is to understand N and k for the ease of others
Between relationship introduce " set of terminal " concept.It is in office why not under the connected condition of associated terminal port to guarantee simultaneously, meet " complete
Carry out optical path interconnection to connection " condition, it may be assumed that in entire extensive optical path interconnection system, any two terminal interconnection port is all
Light network relationship can be established, then the number for needing to relay light path switch isIt is a.
The number of relaying light path switch is set asIt is a, to meet " carrying out optical path interconnection to full connection " condition
The reason of it is as follows: to any two terminal light path switch, in addition to the terminal prot for needing to interconnect, each terminal light path switch
All existA incoherent terminal prot of terminal prot interconnected with needs.Since the relaying of terminal light path switch is handed over
The relaying switching port for changing port and relaying light path switch has one-to-one relationship, as shown in Figure 5.To any two difference
Terminal light path switch, all centainly there is the relaying light path switch that can interconnect to meet incoherent terminal prot, need
TwiceA relaying light path switch, i.e., it is totalIt is a.And two terminals for currently needing to connect also need separately
One individual repeater exchanger, then need altogetherRelay light path switch.
The present invention proposes a seed light interchanger type selecting and port classifications method, as shown in Figure 3.Its feature has following two
It is a:
1) relaying light path switch and terminal light path switch are shared, two kinds of light path switches are as the extensive optical path of composition
" the sub-light path switching mechanism " of interacted system.Each relaying light path switch has a relay interconnection port " m ".Each terminal simultaneously
Light path switch hasIt is a connection terminal terminal interconnection port andA relay interconnection port, altogetherIt is a
Interconnection port.
2) the maximum port number that " the sub- optical path alignment " if that forms extensive optical path interconnection system has is " Y ", need
To meet simultaneously with lower inequality condition (1) and (2):
The single track and more rail link interconnecting modules, feature have following three:
A) networking parameter optimization principle: extensive optical path interconnection system completes networking, it is also necessary to determine " m ", " N " and " k "
Three parameters.And these three parameters will determine the system consumption light network port total quantity " Z ".It is common to think light network port
Quantity consumption is more, and the cost of device of total system will be higher.So in the quantity for meeting connection terminal prot, and guarantee to appoint
Anticipating two terminal rooms can be under conditions of the without hindrance venue of sports event carries out optical path interconnection, and scientifically selecting " m " and " N " two parameters will be effectively reduced
The expense of whole optical interconnection system, all restrictive condition and network construction characteristic have following Parameter relation formula (3) (4):
Due to terminal prot demand " C " be it is immutable, " m " withAt reciprocal relation.Formula (3) are substituted into public
Formula (4) can obtain following result:
5C-2m=Z
Thus networking parameter optimization principle known to result are as follows: the bigger Z value of m value is smaller.
B) networking parameter optimization result: according to above-mentioned networking parameter optimization principle and inequality condition (1) it is found that m value
Optimization collocation should be " sub- optical path alignment " maximum port number for having be " Y ", i.e., " m " withOptimization collocation
It should are as follows:
Finally determine the port number of two class sub-light path switching mechanisms: setting terminal light path switch port numberForSetting relaying light path switch port number m is Y.
C) between two classes " sub-light interchanger " fixed link single track " contraposition " interconnection rule: with relay light path switch for ginseng
According to, its device is numbered be for " j " port numbering " i " relay interconnection port, with device number be " i " port numbering be " j "
Terminal light path switch relay interconnection port be interconnected, as shown in Fig. 5 (a).It has traversed and has all relayed light path switch
Behind each relay interconnection port, " contraposition " interconnection of whole fixed links between " sub-light interchanger " can be completed.
D) the more rails of formula of " doing one's best " interconnect principle:
The connection design of fixed link is in order to which guarantee can full connection between each server node between " sub-light interchanger ".
It is solid between most of " sub-light interchanger " but to (only one terminal interconnection port in i.e. each set of terminal) in " single track " structure
Determining link will be wasted.As shown in Fig. 5 (b, c), when server is using " more rails " structure, first by the head of each set of terminal
A terminal interconnection port is interconnected, i.e., preferentially carries out " single track " interconnection between server.Number is 1~4 in Fig. 5 (b, c)
Terminal interconnection port is provided to guarantee " single track " interconnection that the full connectivity between server carries out.
After single track interconnection, if fixed link will carry out " doing one's best " between also available free " sub-light interchanger "
More rails of formula interconnect, as number is 5~6 terminal prots in Fig. 5 (b).The terminal prot that number is 5 in Fig. 5 (b) is for number
For " more rails " interconnection of 2 terminal interconnection port.Similarly, the terminal prot that number is 6 in Fig. 5 (b) is the terminal end that number is 3
More rail interconnection ports of mouth.
In a few cases, it may appear that the case where fixed link can not be interconnected between idle " sub-light interchanger ", such as
Shown in Fig. 5 (c).But when such case occurs, often between two set of terminal in same terminal light path switch needing to interconnect
Demand.As shown in Fig. 5 (c), when needing to be interconnected between two set of terminal in same terminaling exchange, each end in two set of terminal
Between the interconnection port of end more rail interconnection can be carried out according to port order.
The present invention proposes a kind of parameter optimization method of optical path interconnection system, and specific implementation details as shown in figure 4, walk in detail
It is rapid as follows:
Step 11: determining the parameter of optical switching device.Determine that light network port number demand C and workable light are handed over
Fork closes port number upper limit Y.Y be determined according to the resource constraint of networking, such as according to the present invention carry out networking when, can only make
With port be 32 or less than 32 ports optical switching device, then Y=32.
Step 12: determining the light path switch port number upper limit.With workable optical crossbar switch port number upper limit Y, setting
For terminal light path switch port number m.
Step 13: determining the number of terminal light path switch connection terminal.According toEach terminal light path switch is calculated to connect
The number n of terminal is met, while determining the port number of terminaling exchange
Step 14: preparing two kinds of light network equipment of building optical-fiber network.PrepareThe relaying optical path alignment of a port m
Machine and m are aThe terminal light path switch of port is used for light network networking, that is, has the repeater exchanger of m port, this
The quantity of the repeater exchanger of sample has (2N-k)/k, with (3N-k)/the terminal light path switch of k port, such end
End light path switch quantity has m.
Step 15: carrying out single track " contraposition " interconnection.By m terminal light path switchIt presses a relay interconnection port
According to " contraposition " interconnection rule of fixed link between " sub-light interchanger ", withThe relaying light path switch of a port m carries out
Interconnection.
Step 16: carrying out the more rail interconnection of " doing one's best " formula.After single track interconnection, if also available free " sub-light
Fixed link between interchanger ", by progress " do one's best " formula more rails interconnect.It is successively examined according to the priority of terminal interconnection port
It looks into, whether there is idle fixed link between two terminal interconnection ports, idle fixed link, which refers to removing, meets single track interconnection
Outside, the resource of optical path interconnection can still be established.It, will if having idle fixed link between two different terminal light path switches
Terminal interconnection port is connected to (with reference to the example of Fig. 5 b) with the relay interconnection port that can be connected to idle fixed link.If same
Two terminal interconnection ports in terminal light path switch need to carry out more rail interconnection, then directly by terminal interconnection port in the terminal
It is interconnected in light path switch.(with reference to the example of Fig. 5 c)
The terminal room dynamic optical link interconnecting modules, there are two features:
1) the full connection characteristic of any terminal room single track optical path interconnection: according to the number setting principle of relaying light path switch
(i.e. "The number and port design of a relaying light path switch "), two terminals if desired interconnected belong to different two
Terminal light path switch, by sequentially traversing relay interconnection port, one surely selects with same sequence number and hands in two optical paths
It changes planes all idle relay interconnection port.
2) it the principle of correspondence between the port of sub-light path switching mechanism: is interconnected according to " contraposition " of fixed link between " sub-light interchanger "
Rule, when finding two same sequence numbers and at all idle relay interconnection port of two light path switches, the two interconnection ends
Mouth is centainly connected in the same relaying light path switch.Therefore, this relaying light path switch can be used as two terminal optical path alignments
The relaying optical path of machine.Need to only adjust the optical crossbar switches of two terminal light path switches, by terminal interconnection port with found
Relay interconnection port is interconnected, and can construct the optical path of two terminals of interconnection.Relevant more rail interconnecting methods with " as possible and
For " the more rails interconnection principles of formula.
The present invention proposes that one kind to any two terminal room, establishes the implementation method of dynamic optical interconnection link, specific implementation step
Rapid as described in Figure 6, detailed step is as follows:
Step 21: checking the terminal interconnection port for needing two terminals being interconnected to be connected, if having been set up
Link.If existing interconnecting link is disconnected without interconnection needs between established link but two terminals, and will with it is disconnected
The relevant port designations in open chain road are " free time ".After the completion, judge to need whether two terminals interconnected belong to same terminal light
Path switching mechanism.That is those links established due to expired interconnection needs, are checked herein.To these nothings
Effect link will carry out open circuit, and by label " free time " mark, as the resource that can be interconnected.
Step 22: two terminals if desired interconnected belong to same terminal light path switch, then control this light path switch
Crossbar switch, the terminal interconnection port that two terminals are connected is interconnected.
Step 23: two terminals if desired interconnected belong to two different terminal light path switches, sequentially traversal relaying
Interconnection port selects relay interconnection port with same sequence number and all idle in two light path switches.Wherein serial number such as Fig. 5
In shown in (c), relay interconnection port and terminal interconnection port in terminal light path switch all have respective serial number, and serial number
The preset value specified for user.
Step 24: two terminal optical crossbar switches of control interconnect the terminal of two terminal light path switches in step 23
Port and selected relay interconnection port carry out optical path interconnection.
Step 25: to by control optical crossbar switch, having carried out the relay interconnection port of interconnecting operation, indicated for " non-empty
It is not busy ".
The following are system embodiment corresponding with above method embodiment, present embodiment can be mutual with above embodiment
Cooperation is implemented.The relevant technical details mentioned in above embodiment are still effective in the present embodiment, in order to reduce repetition,
Which is not described herein again.Correspondingly, the relevant technical details mentioned in present embodiment are also applicable in above embodiment.
The invention also discloses a kind of optical path alignment system towards more rail networks, including:
Terminal connecting module, for obtaining multiple relaying light path switches, multiple terminal light path switches and leading to optical path
Multiple more rail server nodes of letter, wherein the sum of the terminal light path switch is m；By the electricity exchange of more rail server nodes
For node as terminal, each more rail server nodes have the set of terminal being made of k terminal, and each terminaling exchange passes through
Its N number of terminal interconnection port having is connected with n set of terminal；
Single track interconnecting modules, for obtaining the sum of the relaying light path switchIt is handed over by the terminal optical path by m
It changes planesA relay interconnection port withA m relay interconnection port of the relaying light path switch is interconnected, and is obtained
Optical path single track interconnection system；
More rail interconnecting modules, are used for, and are examined successively according to the priority of terminal interconnection port in optical path single track interconnection system,
It checks between two terminal interconnection ports whether there is idle fixed link, connects the fixed link and obtain the more rails of optical path and mutually link
System；
Optical path alignment module, for making any two terminal room carry out optical path alignment by the more rail interconnection systems of the optical path, with
Complete the optical path communication between more rail server nodes.
The optical path alignment system towards more rail networks, wherein the content of the inspection specifically includes in more rail interconnecting modules:
It, will be in terminal interconnection port and the fixed link if having idle fixed link between two different terminal light path switches
It is connected to after interconnection port, if two terminal interconnection ports in same terminal light path switch need to carry out more rail interconnection,
Directly terminal interconnection port is interconnected in the terminal light path switch.
The optical path alignment method towards more rail networks, the wherein interconnection process of the single track interconnecting modules specifically: will compile
Number for " j " should after light path switch number be " i " relay interconnection port, be the terminal optical path alignment of " i " with number
The number of machine is that the relay interconnection port of " j " is interconnected.
The optical path alignment method towards more rail networks, wherein any two terminal room passes through the light in the optical path alignment module
The more rail interconnection systems in road carry out optical path alignment and specifically include:
Judge whether two terminals are connected with same terminal light path switch, if so, by controlling the terminal optical path alignment
The terminal interconnection port that two terminals are connected is interconnected by the optical crossbar switch of machine, otherwise sequentially traverses relay interconnection port,
The relay interconnection port all idle in two terminal light path switches is selected, is handed over by the light of two terminal light path switches of control
Fork is closed, respectively by the terminal interconnection port and selected relay interconnection port progress light inside two terminal light path switches
Road interconnection.
The optical path alignment system towards more rail networks, wherein the fixed link of the free time is to meet outside single track interconnection, still
The resource of optical path interconnection can so be established.
Claims (10)
1. a kind of optical path alignment method towards more rail networks characterized by comprising
Step 1 obtains multiple relaying light path switches, multiple terminal light path switches and multiple more rail services to optical path communication
Device node, wherein the sum of the terminal light path switch is m；
Step 2, using the electric switching node of more rail server nodes as terminal, each more rail server nodes had by k end
The set of terminal constituted is held, each terminaling exchange is connected by N number of terminal interconnection port that it has with n set of terminal；
Step 3, the sum for obtaining the relaying light path switchBy by the m terminal light path switchIn a
After interconnection port withA m relay interconnection port of the relaying light path switch is interconnected, and is obtained optical path single track and is mutually linked
System；
Step 4 is examined successively according to the priority of terminal interconnection port in optical path single track interconnection system, checks that two terminals interconnect end
Whether there is idle fixed link between mouthful, connects the fixed link and obtain the more rail interconnection systems of optical path；
Step 5, any two terminal room carry out optical path alignment by the more rail interconnection systems of the optical path, to complete more rail server nodes
Between optical path communication.
2. the optical path alignment method as described in claim 1 towards more rail networks, which is characterized in that the inspection in step 4
Content specifically includes: if having idle fixed link between two different terminal light path switches, by terminal interconnection port with
The relay interconnection port of the fixed link is connected to, if two terminal interconnection ports in same terminal light path switch need into
Terminal interconnection port, then be directly interconnected by the more rail interconnection of row in the terminal light path switch.
3. the optical path alignment method as claimed in claim 1 or 2 towards more rail networks, which is characterized in that the interconnection of the step 3
Process specifically: by number be " j " should after light path switch number be " i " relay interconnection port, be " i " with number
The number of the terminal light path switch is that the relay interconnection port of " j " is interconnected.
4. the optical path alignment method as claimed in claim 3 towards more rail networks, which is characterized in that any two in the step 5
Terminal room carries out optical path alignment by the more rail interconnection systems of the optical path and specifically includes:
Judge whether two terminals are connected with same terminal light path switch, if so, by controlling the terminal light path switch
The terminal interconnection port that two terminals are connected is interconnected by optical crossbar switch, otherwise sequentially traverses relay interconnection port, selection
In all idle relay interconnection port of two terminal light path switches, opened by the light intersection of two terminal light path switches of control
It closes, it is mutual that the terminal interconnection port inside two terminal light path switches is carried out optical path with selected relay interconnection port respectively
Even.
5. the optical path alignment method as described in claim 1 towards more rail networks, which is characterized in that the free time in step 4
Fixed link is to meet outside single track interconnection, still can establish the resource of optical path interconnection.
6. a kind of optical path alignment system towards more rail networks characterized by comprising
Terminal connecting module, for obtaining multiple relaying light path switches, multiple terminal light path switches and to optical path communication
Multiple more rail server nodes, wherein the sum of the terminal light path switch is m；By the electric switching node of more rail server nodes
As terminal, each more rail server nodes have the set of terminal being made of k terminal, and each terminaling exchange has by it
The N number of terminal interconnection port having is connected with n set of terminal；
Single track interconnecting modules, for obtaining the sum of the relaying light path switchBy by the m terminal light path switches
'sA relay interconnection port withA m relay interconnection port of the relaying light path switch is interconnected, and obtains optical path
Single track interconnection system；
More rail interconnecting modules, are used for, and are examined successively according to the priority of terminal interconnection port in optical path single track interconnection system, check
Whether there is idle fixed link between two terminal interconnection ports, connects the fixed link and obtain the more rail interconnection systems of optical path；
Optical path alignment module, for making any two terminal room carry out optical path alignment by the more rail interconnection systems of the optical path, to complete
Optical path communication between more rail server nodes.
7. the optical path alignment system as claimed in claim 6 towards more rail networks, which is characterized in that should in more rail interconnecting modules
The content of inspection specifically includes: if having idle fixed link between two different terminal light path switches, terminal being interconnected
Port is connected to the relay interconnection port of the fixed link, if two terminal interconnection ports in same terminal light path switch
It needs to carry out more rail interconnection, is then directly interconnected terminal interconnection port in the terminal light path switch.
8. the optical path alignment method towards more rail networks as claimed in claims 6 or 7, which is characterized in that the mutual gang mould of the single track
The interconnection process of block specifically: by number be " j " should after light path switch number be " i " relay interconnection port, with volume
It number is that the relay interconnection port of " j " is interconnected for the number of the terminal light path switch of " i ".
9. the optical path alignment method as claimed in claim 8 towards more rail networks, which is characterized in that in the optical path alignment module
Any two terminal room carries out optical path alignment by the more rail interconnection systems of the optical path and specifically includes:
Judge whether two terminals are connected with same terminal light path switch, if so, by controlling the terminal light path switch
The terminal interconnection port that two terminals are connected is interconnected by optical crossbar switch, otherwise sequentially traverses relay interconnection port, selection
In all idle relay interconnection port of two terminal light path switches, opened by the light intersection of two terminal light path switches of control
It closes, it is mutual that the terminal interconnection port inside two terminal light path switches is carried out optical path with selected relay interconnection port respectively
Even.
10. the optical path alignment system as claimed in claim 6 towards more rail networks, which is characterized in that the fixation chain of the free time
Road is to meet outside single track interconnection, still can establish the resource of optical path interconnection.
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