CN101394309A - Cluster system expanding method, apparatus and cluster system - Google Patents
Cluster system expanding method, apparatus and cluster system Download PDFInfo
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- CN101394309A CN101394309A CNA2008102187318A CN200810218731A CN101394309A CN 101394309 A CN101394309 A CN 101394309A CN A2008102187318 A CNA2008102187318 A CN A2008102187318A CN 200810218731 A CN200810218731 A CN 200810218731A CN 101394309 A CN101394309 A CN 101394309A
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Abstract
The embodiment of the invention provides a method for expanding a cluster system which comprises at least a CCC, and a newly added CLC is connected with the CCC to form the cluster system. The method comprises the following steps: a control plane is established; and a device management right is switched to the CCC, so as to enable the CCC to manage the newly added CLC. The embodiment of the invention further discloses a cluster route card device, a cluster central exchange device and the cluster system. By adopting the method, smooth expansion can be conducted without the interrupt of the operational equipment service of the CLC current network and the data service, and no software device needs to be changed during the expansion, thereby reducing the investment of a user in the device.
Description
Technical field
The embodiment of the invention relates to network communication field, relates to a kind of group system expansion method, cluster route card, cluster central switching unit and group system particularly.
Background technology
Along with further developing of network, the user bandwidth rapid growth, operators find that in many core application scenes, business demand can not be satisfied in the capacity of separate unit router, groove position.And in fact super core node has become the bottleneck that telecom operators further develop business.Router for telecom operators (China Telecom, China Mobile etc.) provide highly reliable transfer of data, requires high reliability as the network cluster system; Require to have extensibility simultaneously.
The exchange plane of existing route device equipment all is to adopt the single-stage exchange; (Cluster Central Chassis, CCC) (Cluster Line-cardChassis CLC) forms with the cluster Cluster Line-card Chassis and router cluster equipment is all by Cluster Central Chassis.Existing router cluster equipment adopts 3 grades of Clos structures, realizes three grades of exchanging mechanisms, carries out 1 grade and 3 grades of exchanges among the CLC, and CCC finishes 2 grades of exchanges between frame.The management plane of existing router cluster equipment is connected with CCC and forms data channel by two links (forming two links of main and standby relation) by each CLC, finishes CCC to the processing of the management of CLC and relevant route with issue by this data channel.
Router cluster is router matrix or multimachine frame interconnected (Multi-Chassis) again, and is exactly that many routers are interconnected in simple terms, forms one and overlaps the route system of one in logic.The generation of Clustering mainly contains two direct reasons: at first, single-machine capacity progressively develops into the limit; Secondly, the generation of super node makes network configuration increasingly sophisticated, protects the dimension management difficulty and strengthens.
Clustering is in the introducing in router field, purpose is that common core router more than two or two is connected by certain mode, make these core routers can carry out equipment room collaborative work and parallel processing, realize the level and smooth expansion of power system capacity, and externally only show as a router logic.The user wishes the capacity and the groove position of some node of expansion under the situation that does not influence the existing equipment business as far as possible, forms a router cluster equipment to satisfy more high power capacity of user, i.e. requirement can be accomplished smooth expansion.In the prior art, CLC and CCC will be as cover cluster devices, and process is to carry out under the situation that does not have business, needs cable is between the two connected, and carry out configuration on two equipment, forms a cover cluster by the mode that restarts.
In the prior art, no matter be newly-increased CLC, still newly-increased CCC, the equipment dilatation all is to carry out under the situation of interrupting the CLC business, can not accomplish to carry out smooth expansion under the unbroken situation of data service.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of group system expansion method, cluster route card, cluster central switching unit and group system are provided, can be under the situation of the business that does not influence existing network operation router device, online is router cluster equipment with the router device dilatation.
The embodiment of the invention provides a kind of group system expansion method, and described group system comprises at least one Cluster Central Chassis CCC, and newly-increased CLC and described CCC are connected to form group system, and described method comprises:
Set up control plane;
Equipment control power is switched on the described CCC, so that described CCC manages described newly-increased CLC.
Correspondingly, the embodiment of the invention also provides a kind of cluster route card, and described cluster route card is cluster Cluster Line-card Chassis CLC, and described CLC is connected with Cluster Central Chassis CCC, and described CLC comprises:
Port (1) is used for being connected with described CCC;
Control plane is set up unit (2), is used to set up control plane;
Switch unit (3) is used for the power of the equipment control on the described CLC is switched to described CCC, so that described CCC manages described CLC.
Correspondingly, the embodiment of the invention also provides a kind of cluster central switching unit, and described cluster central switching unit is Cluster Central Chassis CCC, is connected between described CCC and the cluster Cluster Line-card Chassis CLC and forms group system, and described CCC comprises:
CLC port (4) is used for being connected with described CLC;
Registering unit (5), the port that is used for the free time by main port or standby port is registered to described CLC, be registered as described CLC from frame;
Backup concerns processing unit (6), is used to notify described CLC can accept change backup relation;
Administrative unit (7) is used for described CCC and CLC being managed after control is switched when described CLC finishes.
Correspondingly, the embodiment of the invention also provides a kind of group system, and described system comprises at least one Cluster Central Chassis CCC and newly-increased as each described cluster route card of claim 12-17.
Implement the embodiment of the invention, can be under the situation of not interrupting CLC existing network operational outfit business, accomplish under the unbroken situation of data service, to carry out smooth expansion, and in this dilation process, need not to change hardware device, can reduce the investment of user on equipment.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiment of the embodiment of the invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of the cluster route card of the embodiment of the invention;
Fig. 2 is the structural representation that the control plane of the cluster route card of Fig. 1 is set up the unit;
Fig. 3 is the structural representation of switch unit of the cluster route card of Fig. 1;
Fig. 4 is the structural representation of the cluster central switching unit of the embodiment of the invention;
Fig. 5 is the structural representation of embodiment one of the group system of the embodiment of the invention;
Fig. 6 is the structural representation of embodiment two of the group system of the embodiment of the invention;
Fig. 7 is the schematic flow sheet of the embodiment one of group system expansion method of the present invention;
Fig. 8 is the idiographic flow schematic diagram of setting up control plane in the group system expansion method of Fig. 7;
Fig. 9 is the idiographic flow schematic diagram of the switching device administrative power in the group system expansion method of Fig. 7;
Figure 10 is the structural representation of embodiment three of the group system of the embodiment of the invention;
Figure 11 is the schematic flow sheet of the embodiment two of group system expansion method of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is embodiment of the invention part embodiment, rather than whole embodiment.Based on the embodiment in the embodiment of the invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of embodiment of the invention protection.
Cluster Central Chassis CCC is used for monitoring, administers and maintains whole cluster device, connects each CLC, and the data exchange channel of the exchange plane between a plurality of CLC is provided.CCC can comprise master control borad (MainProcessing Unit, MPU) (hereinafter to be referred as the MPU plate), interior communication panel (Internal CommunicationUnit, ICU) (hereinafter to be referred as the ICU plate), network board (Switch Fabric Unit, SFU) (hereinafter to be referred as the SFU plate), electric cross board (Electric Cross Unit, ECU) (Optical Flexible Card OFC) waits veneer for (hereinafter to be referred as the ECU plate) and the light Flexible Plugged-in Interface Card above the ECU plate.Wherein,
The MPU plate is system's control and higher management, simultaneously again as the maintenance management unit, has finished the function of control plane and exchange plane, and Cluster Central Chassis generally comprises two blocks of MPU plates, forms backup to guarantee reliability;
The SFU plate is mainly realized the Service Switching Function between the different Cluster Line-card Chassis as the switching network module of Cluster Central Chassis; Photon card OFC is that the interface card on the ECU plate is used for photoelectricity, electric light translation function, and OFC photon card can be realized the flow relaying between Cluster Central Chassis and each Cluster Line-card Chassis, forms the data channel between CCC and the CLC;
The ECU plate cooperates the service channel of realizing the multi-chassis cascading router with photon card OFC, SFU plate, the ECU plate is finished the relaying between SFU plate and the OFC as the part of Cluster Central Chassis Business Processing;
The ICU plate is used to realize between Cluster Central Chassis and the Cluster Central Chassis, the transmission of control information reliably between Cluster Central Chassis and the Cluster Line-card Chassis, for example, in the CCC-1 system (i.e. 1 Cluster Central Chassis), ICU plate on the Cluster Central Chassis, can link to each other by the master control borad of Ethernet interface with 4 Cluster Line-card Chassis, deliver to Main Processing Unit in the control information with the Cluster Line-card Chassis master control borad, simultaneously the control information of Main Processing Unit is issued to the master control borad of each Cluster Line-card Chassis.The ICU plate is not only finished the control channel between Cluster Central Chassis and the Cluster Line-card Chassis (2 Cluster Central Chassis promptly to be arranged) in the CCC-2 system, also realize two control channels between the Cluster Central Chassis, therefore, can comprise the CLC interface on the ICU plate, for example the interface of ethernet type is used to connect the subtending port on the CLC master control borad; Also comprise the CCC interface, for example the interface of ethernet type is used to connect other CCC, and the ICU plate of each Cluster Central Chassis can couple together by this interface and constitute rapid ring protection protocol (Rapid Ring Protection Protocol, RRPP) ring.For example, in the system of CCC-2, a CCC goes up as long as a CCC interface just can link to each other with another CCC in the CCC-2 system, but, when group system expands to CCC-4 or more Cluster Central Chassis, may need two CCC interfaces on each CCC, be connected with other CCC in the group system, all CCC form a ring.
At many frames, promptly a plurality of routers, in the cluster routers of composition, each single frame is called as Cluster Line-card Chassis CLC.Each Cluster Line-card Chassis can comprise MPU plate, SFU plate and line interface disposable plates (Line interfaceprocessing unit, veneer such as LPU), wherein MPU is the master control crosspoint, centralized control and the management and the exchanges data of the system of being responsible for, general each Cluster Line-card Chassis can comprise two blocks of MPU plates, forms backup to guarantee reliability.Network board SFU realizes the concentrated quick exchange of business datum.LPU is used to finish professional fast processing and forwarding, and link protocol, the professional functions of transmitting with table such as maintenance management.
Fig. 1 is the structural representation of the cluster route card of the embodiment of the invention, and in embodiments of the present invention, described cluster route card is cluster Cluster Line-card Chassis CLC, and described CLC is connected with CCC, and as shown in Figure 1, this CLC comprises:
Port one is used for being connected with CCC, can be one, and also two, if two, one of them is to be used for the main port that is connected with CCC, and another is to be used for the standby port that is connected with CCC.During specific implementation, can be the port of ethernet type with upper port, for example, GE (Gigabit Ethernet) port, FE (Fast Ethernet) port etc.
Control plane is set up unit 2, is used to set up control plane;
Wherein, control plane is as shown in Figure 2 set up the structural representation of unit 2, and control plane is set up unit 2 and further comprised:
Master control borad backup relation change unit 20 is used to change described newly-increased CLC and goes up MPU board back-up relation;
Wherein, master control borad backup relation change unit 20 further comprises:
Mode of operation is provided with unit 200, is used for the mode of operation of described CLC is changed to many frames mode of operation.
Receive registering unit 201, be used for being provided with after unit 200 change mode of operations are many frames mode of operation in mode of operation, the port by the free time in main port or the standby port receives the registration from CCC, with CCC be registered as CLC from frame.
The user can directly operate on CLC, triggers master control borad backup relation change unit 20 change backup relations.
Wherein, the structural representation of switch unit 3 as shown in Figure 3, switch unit 3 further comprises: control plane switch unit 30 and exchange plane switch unit 31;
Control plane switch unit 30 is used for that its master is switched to the main of described CCC with the MPU plate and uses the MPU plate, and the MPU plate is carried out masterslave switchover, and at this moment, the master on the CCC becomes the main of CLC with the MPU plate and uses the MPU plate, finishes the control aspect and switches;
Exchange plane switch unit 31 is used for the mode of operation of the SFU plate of CLC is changed to three grades of switch modes.
The user can directly operate on CLC, triggers switch unit 3 work, also can be on CCC, and the port by the free time in main port or the standby port receives the signal from CCC, triggers switch unit 3 work.
The change master control borad backed up relation after master control borad backup relation change unit 20 also was used for the group system dilatation.In the group system dilation process, the 1:1 backup of the MPU plate of frame has been realized striding in the group system in master control borad backup relation change unit 20, promptly 1 main with MPU plate (the main MPU plate of use on the CLC), 1 block of standby MPU plate (master on the CCC uses the MPU plate).After the group system dilatation is finished, can continue to prolong with this backup relation, can change this backup relation.For example the backup relation is changed to the 1:N backup, for example, with the CCC-2 group system is the example explanation, 2 CCC are arranged in the CCC-2 group system, and each CCC goes up generally all has 2 blocks of MPU plates to do active and standby backup in order to reach reliability requirement, so in the CCC-2 group system, in fact have 4 blocks of MPU plates, if when only realizing striding the 1:1 backup of MPU plate of frame, in fact 2 MPU plate free time are arranged in the group system, in order to improve the reliability of system, and avoid the wasting of resources, can also utilize 2 blocks of MPU plates of free time, as inferior standby MPU plate and time time backup MPU plate, the 1:3 backup of the MPU plate of frame is striden in realization respectively.
CLC in the embodiment of the invention comprises the MPU plate, and above-mentioned port and unit can be arranged on this MPU plate.
Fig. 4 is the structural representation of the cluster central switching unit of the embodiment of the invention, in embodiments of the present invention, described cluster central means is Cluster Central Chassis CCC, and described CCC is connected with cluster Cluster Line-card Chassis CLC, alternatively, CCC can be connected with CLC by main/slave link.As shown in Figure 4, this CCC comprises:
CLC port 4 is used for being connected with CLC, can be one, also can be two, and when being two, one of them is to be used for the main port that is connected with CLC, and another is to be used for the standby port that is connected with CLC.During specific implementation, can be the port of ethernet type with upper port, for example, GE (Gigabit Ethernet) port, FE (Fast Ethernet) port etc.
Registering unit 5 is registered to CLC by the port of the free time in main port or the standby port, be registered as CLC from frame.
Backup concerns processing unit 6, is used to notify CLC can accept change backup relation.For example, when realizing by the HA means, the HA state of this module change CCC is many frames batch backup state, make up and send a notification message to newly-increased CLC so that CLC receive this notification message after the backup of change master control borad concern.
When in this group system newly-increased CCC being arranged, former CCC can also comprise:
CCC port 8 is used for being connected with the CCC of group system, can be one, also can be two, when being two, can make the CCC of group system connect into ring;
Mode of operation is changed unit 9, is used to change the mode of operation of CCC;
Master control borad backup relation change unit 10, change CCC goes up the main and standby relation of MPU plate, the standby MPU plate that is specially current C CC is set to increase newly the main MPU plate of using on the CCC, being that current C CC is upward main remains unchanged with the MPU plate, current C CC uses the standby MPU plate of MPU plate as oneself to the master on the newly-increased CCC, and then, can realize data backup, be that current C CC backups to standby MPU plate main with the data on the MPU plate, the main MPU plate of using on the promptly newly-increased CCC.
Correspondingly, the ICU card also comprises communication unit, when two above CCC are arranged in the group system, is used for communicating by letter with other CCC of group system, selects the main CCC that uses.
CCC in the embodiment of the invention comprises the MPU plate, and above-mentioned port and unit can be arranged on this MPU plate.
Fig. 5 is the structural representation of the embodiment one of group system of the present invention, as described in Figure 5, this system comprises at least one Cluster Central Chassis CCC and newly-increased Cluster Line-card Chassis CLC, described CCC cluster central switching unit as shown in Figure 2, described CLC cluster route card as shown in Figure 1, CCC is connected with CLC, wherein, described newly-increased CLC is used to change self MPU board back-up relation, the master who main configuration information with the MPU plate is backuped to CCC uses the MPU plate, and equipment control power is switched on the described CCC; Described CCC is used to manage described group system.
Fig. 6 is the structural representation of the embodiment two of group system of the present invention, as shown in Figure 6, this system comprises a CCC and n CLC, the group system of forming CCC+nCLC, its operation principle and expansion method are as described in the above-mentioned method embodiment, increase CLC and expand to the CCC+nCLC group system on the basis of CCC+CLC group system, then newly-increased CLC only needs directly to connect CCC.Wherein, CLC is as above-mentioned cluster route card shown in Figure 1, and CCC repeats no more here as above-mentioned cluster central switching unit shown in Figure 2.
Below in conjunction with method embodiment of the present invention said apparatus and system are further elaborated.
Fig. 7 is the schematic flow sheet of the embodiment one of group system expansion method of the present invention, and present embodiment is realized dilatation by newly-increased CLC in CCC, and in this method, group system comprises at least one Cluster Central Chassis CCC, and as shown in Figure 7, this method comprises:
101, set up control plane; Change CLC goes up MPU board back-up relation, the main configuration information with the MPU plate on the CLC is backuped to the main MPU plate of using of CCC.Be connected by main/slave link between CCC and the described newly-increased CLC, main/slave link between CCC and the CLC mainly is be used for internal control information mutual, comprises backup information, and two links are that backup is used mutually, when a link failure, management information still can by other one mutual.Wherein, CCC is connected by two links with CLC, and during specific implementation, the type of attachment of above-mentioned main/slave link can directly connect CLC and CCC gets final product with netting twine.
This moment CLC administrative power still on CLC, the processing of the relevant route of the group system of CLC+CCC form and return and must be finished by CLC down, thereby the equipment control on the CLC need be weighed and switch on the CCC is managed whole C LC+CCC by CCC.
102, equipment control power is switched on the described CCC, so that described CCC manages described newly-increased CLC.Because the administrative power of at this moment newly-increased CLC still on CLC, does not still have information interaction between newly-increased CLC and the CCC, main/slave link all is in idle condition, can be by any link switchover control in the main/slave link, preferably, when main/slave link is all idle, also preferred active link.102 can pass through high reliability, and (HA is the common technology means of ability, does not repeat them here for High Available, HA) means realization.The specific implementation of 102 processes can switch to CCC with equipment control power by user's manual configuration on CLC, or, by carrying out automatic switchover after CLC or the automatic detection of CCC to equipment control power.The above changing method can reach the purpose that equipment control power is switched, and it will be apparent to those skilled in the art that, repeats no more.After switching to described CCC on by the idle link in the main/slave link equipment control power, CCC manages described newly-increased CLC.Be specially, CCC manages the CLC+CCC cluster device by its MPU plate.
Above-mentioned 101 concrete steps of setting up control plane can comprise as shown in Figure 8:
1011, CCC is connected with described newly-increased CLC, and newly-increased CLC is changed into many frames mode of operation, and the mode of operation of CLC comprises two kinds of single frame and many frames.Certainly, this is known to those skilled in the art, this moment, the mode of operation of CCC also should be many frames mode of operation, during the mode of operation of CCC can have a lot, be used to represent that group system comprises several CCC, for example represent when the mode of operation of CCC is CCC-1 that whole group system comprises many frames mode of operation of a CCC.Alternatively, be connected by main/slave link between CCC and the CLC.
1012, CCC is to the CLC of many frames mode of operation registration, and CCC is registered as a frame on the CLC, and this moment, CLC thought that CLC oneself is main frame, CCC be CLC from frame.CCC is after the CLC of current operation registration, and the user can land the state that CCC checks whole group system from CLC like this, change configuration etc.
1013, change CLC goes up MPU board back-up relation, the main configuration information with the MPU plate on the CLC is backuped to the main MPU plate of using of CCC.Promptly the standby MPU plate of CLC is changed into CCC and go up and mainly use the MPU plate, at this moment, the main master who remains on the former CLC with the MPU plate of CLC uses the MPU plate, and still, the standby MPU plate of CLC is that the master on the CCC uses the MPU plate.(High Available, HA) means are used the MPU plate to the master that the main configuration information with the MPU plate on the CLC backups to CCC, i.e. the main MPU plate of using on the CCC by high reliability.
CLC switches to equipment control power and specifically comprises the switching controls plane on the described newly-increased CCC and switch exchange plane in above-mentioned 102, as shown in Figure 9.Introduce in detail respectively below:
1021, the switching controls plane; Newly-increased CLC is with MPU plate masterslave switchover, and at this moment, the master on the CCC becomes the main of CLC with the MPU plate and uses the MPU plate, and the control aspect is finished switching.
1022, switch exchange plane; Newly-increased CLC changes the mode of operation of oneself into three grades of switch modes.Switching exchange plane is that switch data is transmitted, because newly-increased CLC was the one-level switch mode originally, need change its mode of operation into three grades of switch modes now, be that CCC is as 2 grades of switching network equipments, the SFU of Cluster Line-card Chassis is then as 1 or 3 grade of switching network, constitute the cluster routers system of a plurality of equipment cascadings, three grades of exchanges of customer flow, make and to carry out exchanges data between each business board.During specific implementation, because newly-increased CLC comprises N+1 piece SFU plate, wherein N piece SFU plate is responsible for swap data, 1 block of SFU plate is as the backup of above-mentioned N piece SFU plate, so, because the existence of backup SFU plate is arranged, can guarantee that N piece SFU plate can change many frames mode of operation one by one into.
After switching to the power of the equipment control on the CLC on the CCC, by the MPU board management whole C LC+CCC cluster device on the CCC.Come smooth expansion by newly-increased CLC under CCC in the present embodiment, do not need newly-increased CLC just to restart and to realize smooth expansion, improved the reliability of group system smooth expansion.
More than can be called the CCC+nCLC group system, in the practical application, because the CLC that each CCC can connect down is conditional, for example, generally speaking, a CCC may support to connect 4 CLC at most, when having connected CLC under the CCC, power system capacity is still not enough, when needing further dilatation, may need to realize, form the 2CCC+nCLC group system by newly-increased CCC.Therefore further embodiment of this invention provides a kind of group system, Figure 10 is the structural representation of the embodiment three of group system of the present invention, as shown in figure 10, this system is the group system of mCCC+nCLC, wherein, CLC is as the cluster route card of Fig. 1, and CCC repeats no more here as the cluster central switching unit of Fig. 2.Correspondingly, the embodiment of the invention also provides another kind of group system expansion method, the schematic flow sheet of the embodiment two of group system expansion method of the present invention as shown in figure 11, if described integrated system also comprises newly-increased CCC, described newly-increased CCC is connected with described CCC, described newly-increased CCC is connected with described newly-increased CLC, and this method also comprises:
201, change the mode of operation of described newly-increased CCC and described CCC, newly-increased CCC registers with CCC to main.The mode of operation of newly-increased CCC of change and former CCC is CCC-2, because a CCC is only arranged in the CCC-1 system, so former CCC also can be regarded as the main CCC that uses, newly-increased CCC registers to former CCC, registers the frame of former CCC.For example, be originally the CCC-1 system, need newly-increased CCC now, form the CCC-2 system, newly-increased CCC registers to former group system Central Plains CCC, register the frame of former CCC, in like manner, if be originally the CCC-m system, newly-increased if desired CCC, when forming CCC-(m+1) system, the mode of operation of an original m CCC and newly-increased CCC all is set to CCC-(m+1), newly-increased CCC gets final product with the CCC registration to main.
202, the main main and standby relation that goes up the MPU plate with CCC of change, being specially main standby MPU plate with CCC is set to leading on the newly-increased CCC and uses the MPU plate, promptly the master remains unchanged with the MPU plate with CCC is upward main, the master uses the standby MPU plate of MPU plate as oneself to the master on the newly-increased CCC with CCC, and then, can realize data backup, promptly the master backups to standby MPU plate main with the data on the MPU plate with CCC, the main MPU plate of using on the promptly newly-increased CCC.
If have only 2 CCC in the group system, be main and standby relation between 2 CCC, a certain moment has only a MPU plate on the CCC in work, at this moment, claims that also former CCC is that main to use CCC, newly-increased CCC be standby CCC.The master carries out the control of whole system with CCC, comprises the management of device level and the control of route, agreement etc., after the master is broken down with CCC, has standby CCC and takes over, and whole system is controlled, and plays the effect of backup.When the master is broken down with the MPU plate with the master on the CCC, main standby MPU plate, the main MPU plate of using on the promptly standby CCC, adapter corresponding work with CCC.In fact, be that standby CCC takes over main work with CCC this moment.
When if the individual CCC of N (N is the natural number more than or equal to 3) is arranged in the group system; can also be connected to form looped network in twos between this N CCC; by operation looped network agreement; Resilient Packet Ring (ResilientPacket Ring for example; RPR) agreement; RRPP (rapid ring protection protocol, Rapid Ring ProtectionProtocol) is to guarantee the reliability of CCC.
In like manner, can expand to the mCCC+nCLC group system by continuing newly-increased CCC or newly-increased CLC, this group system comprises m CCC, and n CLC links to each other between the CCC, and each CLC is connected by main/slave link with each CCC.A wherein whenever newly-increased CCC and the expansion method that whenever increases a CLC newly are all respectively with above-mentioned embodiment.
All be to connect by active and standby two-way link between CLC and the CCC in the foregoing description, this is the reliability of communicating by letter between CLC and the CCC in order to improve, and obviously, also can only connect with a link.
Because the time sequencing of newly-increased CLC or newly-increased CCC is also unrestricted, above-mentioned two embodiment can implement respectively, also can make up enforcement.
Said method embodiment two also comprises, change master control borad backup relation after the group system dilatation.In the group system dilation process, realized striding in the group system 1:1 backup of the MPU plate of frame, promptly 1 main with MPU plate (the main MPU plate of use on the CLC), 1 block of standby MPU plate (master on the CCC uses the MPU plate).After the group system dilatation is finished, can continue to prolong with this backup relation, can change this backup relation.For example the backup relation is changed to the 1:N backup, for example, with the CCC-2 group system is the example explanation, 2 CCC are arranged in the CCC-2 group system, and each CCC goes up generally all has 2 blocks of MPU plates to do active and standby backup in order to reach reliability requirement, so in the CCC-2 group system, in fact have 4 blocks of MPU plates, if when only realizing striding the 1:1 backup of MPU plate of frame, in fact 2 MPU plate free time are arranged in the group system, in order to improve the reliability of system, and avoid the wasting of resources, can also utilize 2 blocks of MPU plates of free time, as inferior standby MPU plate and time time backup MPU plate, the 1:3 backup of the MPU plate of frame is striden in realization respectively.
In embodiments of the present invention, described idle link can be active link or the reserve link in the main/slave link, when active link and reserve link are all idle, and preferred active link.
Implement the group system of the embodiment of the invention, when newly-increased CCC or newly-increased CLC, can realize smooth expansion, in this dilation process, need not to change hardware device, can reduce the investment of user on equipment in the situation of not interrupting CLC existing network operational outfit business.
Implement the embodiment of the invention, can be under the situation of not interrupting CLC existing network operational outfit business, accomplish under the unbroken situation of data service, to carry out smooth expansion, and in this dilation process, need not to change hardware device, can reduce the investment of user on equipment.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the invention and can realize by the mode that software adds essential hardware platform, can certainly all implement by hardware.Based on such understanding, all or part of can the embodying that the technical scheme of the embodiment of the invention contributes to background technology with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the embodiment of the invention or embodiment.
Above disclosed only is the preferred embodiment of the embodiment of the invention, can not limit the interest field of the embodiment of the invention certainly with this, the therefore equivalent variations of being done according to embodiment of the invention claim, the scope that still belongs to the embodiment of the invention and contained.
Claims (22)
1, a kind of group system expansion method is characterized in that, described group system comprises at least one Cluster Central Chassis CCC, and newly-increased CLC and described CCC are connected to form group system, and described method comprises:
Set up control plane;
Equipment control power is switched on the described CCC, so that described CCC manages described newly-increased CLC.
2, the method for claim 1 is characterized in that, the described control plane of setting up comprises:
Change described newly-increased CLC and go up MPU board back-up relation;
Main configuration information with the MPU plate on the described newly-increased CLC is backuped to the main MPU plate of using of described CCC.
3, method as claimed in claim 2 is characterized in that, the described newly-increased CLC of described change goes up MPU board back-up relation, specifically comprises:
The mode of operation of described newly-increased CLC is changed to many frames mode of operation;
Reception is from the registration of described CCC, described CCC is become on the CLC of many frames mode of operation from frame.
4, the method for claim 1 is characterized in that, described equipment control is weighed switches on the described CCC, specifically comprises:
The main main MPU plate of using that switches to described CCC with the MPU plate with described newly-increased CLC;
The mode of operation of described newly-increased CLC is changed to three grades of switch modes.
5, the method for claim 1 is characterized in that, described newly-increased CLC is connected with described CCC by main/slave link.
6, method as claimed in claim 5 is characterized in that, described equipment control power is switched on the described CCC is specially: equipment control power is switched on the described CCC by the idle link in the described main/slave link.
As claim 1,2,3 or 4 described methods, it is characterized in that 7, if described integrated system also comprises newly-increased CCC, described newly-increased CCC is connected with described CCC, described newly-increased CCC is connected with described newly-increased CLC, and described method also comprises:
Change the mode of operation of described newly-increased CCC and described CCC, described newly-increased CCC registers to former CCC, become former CCC from frame;
The main main and standby relation that goes up the MPU plate with CCC of change.
8, method as claimed in claim 7 is characterized in that, described change master is specially with the main and standby relation that CCC goes up the MPU plate:
Described main standby MPU plate with CCC is set to the main MPU plate of using on the described newly-increased CCC.
9, method as claimed in claim 8 is characterized in that, if described group system comprises at least three CCC, is connected to form looped network in twos between then a plurality of described CCC.
10, method as claimed in claim 7 is characterized in that, described newly-increased CCC is connected with described CCC by main/slave link, and described newly-increased CCC is connected with described newly-increased CLC by main/slave link.
11, method as claimed in claim 8 is characterized in that, this method also comprises:
Backup relation change 1:N backup with the MPU plate.
12, a kind of cluster route card is characterized in that, described cluster route card is cluster Cluster Line-card Chassis CLC, and described CLC is connected with Cluster Central Chassis CCC, and described CLC comprises:
Port (1) is used for being connected with described CCC;
Control plane is set up unit (2), is used to set up control plane;
Switch unit (3) is used for the power of the equipment control on the described CLC is switched to described CCC, so that described CCC manages described CLC.
13, cluster route card as claimed in claim 12 is characterized in that, described control plane is set up unit (2) and being comprised:
Master control borad backup relation change unit (20) is used to change described newly-increased CLC and goes up MPU board back-up relation;
Backup units (21) is used for the main MPU plate of using that backups to described CCC with the configuration information of MPU plate of leading with described CLC.
14, cluster route card as claimed in claim 13 is characterized in that, described master control borad backup relation change unit (20) comprising:
Mode of operation is provided with unit (200), is used for the mode of operation of described CLC is changed to many frames mode of operation;
Receive registering unit (201), be used to receive log-on message from described CCC, with the described CLC of described CCC registration becoming from frame.
15, cluster route card as claimed in claim 12 is characterized in that, described switch unit (3) comprising:
Control plane switch unit (30) is used for the main main MPU plate of using that switches to described CCC with the MPU plate with described CLC;
Exchange plane switch unit (31) is used for the mode of operation of described CLC is changed to three grades of switch modes.
16, cluster route card as claimed in claim 13 is characterized in that, described master control borad backup relation change unit (20) also is used for the backup relation change 1:N backup with the MPU plate.
17, cluster route card as claimed in claim 12, it is characterized in that, described CLC is connected by main/slave link with CCC, switch unit (3) then, be used for the idle link that the equipment control on the described CLC is weighed by main/slave link is switched to described CCC, so that described CCC manages described CLC.
18, a kind of cluster central switching unit is characterized in that, described cluster central switching unit is Cluster Central Chassis CCC, is connected between described CCC and the cluster Cluster Line-card Chassis CLC and forms group system, and described CCC comprises:
CLC port (4) is used for being connected with described CLC;
Registering unit (5), the port that is used for the free time by main port or standby port is registered to described CLC, be registered as described CLC from frame;
Backup concerns processing unit (6), is used to notify described CLC can accept change backup relation;
Administrative unit (7) is used for described CCC and CLC being managed after control is switched when described CLC finishes.
19, cluster central switching unit as claimed in claim 18 is characterized in that, if described integrated system comprises newly-increased CCC, then described CCC also comprises:
CCC port (8) is used for being connected with the newly-increased CCC of described group system;
Mode of operation is changed unit (9), is used to change the mode of operation of CCC;
Master control borad backup relation change unit (10) is used to change the main and standby relation that described CCC goes up the MPU plate.
20, cluster central switching unit as claimed in claim 19 is characterized in that, described CCC is connected by main/slave link with CLC, and described newly-increased CCC is connected by main/slave link with described CCC, and described newly-increased CCC is connected by main/slave link with described CLC.
21, a kind of group system is characterized in that, described system comprises at least one Cluster Central Chassis CCC and newly-increased as each described cluster route card of claim 12-17.
22, group system as claimed in claim 21 is characterized in that, described system also comprises each described cluster central switching unit as claim 18-20.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102187318A CN101394309A (en) | 2008-10-29 | 2008-10-29 | Cluster system expanding method, apparatus and cluster system |
| PCT/CN2009/074629 WO2010048875A1 (en) | 2008-10-29 | 2009-10-27 | Method, device of cluster system extension and cluster system |
| CN2009801451975A CN102326358B (en) | 2008-10-29 | 2009-10-27 | Method, device of cluster system extension and cluster system |
| US13/096,588 US9465417B2 (en) | 2008-10-29 | 2011-04-28 | Cluster system, method and device for expanding cluster system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102187318A CN101394309A (en) | 2008-10-29 | 2008-10-29 | Cluster system expanding method, apparatus and cluster system |
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| CN101394309A true CN101394309A (en) | 2009-03-25 |
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| CNA2008102187318A Pending CN101394309A (en) | 2008-10-29 | 2008-10-29 | Cluster system expanding method, apparatus and cluster system |
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| WO2010048875A1 (en) * | 2008-10-29 | 2010-05-06 | 华为技术有限公司 | Method, device of cluster system extension and cluster system |
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| WO2011017845A1 (en) * | 2009-08-14 | 2011-02-17 | 华为技术有限公司 | Communication system for cluster devices |
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