CN101702678A - Star-shaped stack system and method thereof - Google Patents
Star-shaped stack system and method thereof Download PDFInfo
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- CN101702678A CN101702678A CN200910223350A CN200910223350A CN101702678A CN 101702678 A CN101702678 A CN 101702678A CN 200910223350 A CN200910223350 A CN 200910223350A CN 200910223350 A CN200910223350 A CN 200910223350A CN 101702678 A CN101702678 A CN 101702678A
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Abstract
The invention discloses a star-shaped stack system, which comprises a master domain and a star-shaped stack topology which consists of a plurality of slave domains. The master domain consists of one or more than one of stack equipment, wherein the stack equipment in the master domain are interconnected by a stack opening of the master domain; master domain has a plurality of groups of stack openings of the slave domains, wherein one or more than one of the stack equipment hung under the each group of the stack openings of the slave domains forms into one slave domain; the stack equipment in the main domain and the stack equipment hung in the slave domain forms into one stack domain, wherein the stack equipment of the each stack domain carries out topology collection in the stack domain, and completes the stack process of the equipment according to sequential main domain topological convergence, slave domain topological convergence and whole topological convergence. The invention effectively improves the band width of stack links, improves the connection reliability between the master equipment and the slave equipment, and increases the amount of stack members.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of star-shaped stack system and method.
Background technology
Pile up and be meant with the co-operation altogether of the group of switches more than, so that port as much as possible is provided in limited space.Ethernet switch piles up technology, many switches can be interconnected at together, forms distributed switching architecture, and as a logic switching entity operation.
From the angle of management and configuration, a distributed switching architecture seems just as a switching equipment; From the angle of performance, every switch in the distributed switching architecture can both be formulated local forwarding decision at the second layer on its port, the 3rd laminar flow amount communication service.
Many switching equipment are piled up in support can be connected to each other one of formation " combination plant ", and we are called a Stacking (piling up) with this " combination plant ", and each equipment that will form Stacking is called a Slot (member).After a plurality of Slot form Stacking, no matter still in the use, just become an integral body in management.That is to say that the user can regard these multiple devices as single equipment and manage and use.So both can come Extended Capabilities Port quantity and exchange capacity, also increase the reliability of whole Stacking simultaneously by the mutual backup between a plurality of Slot by increase equipment.
Figure 1 shows that 5 equipment annular pile systems, 5 equipment are respectively S1, S2, S3, S4 and S5, and every equipment has two groups of outside stacking opening, is respectively P1, P2 (first stacking opening and second stacking opening).Must first stacking opening be connected with second stacking opening between adjacent two equipment, for example S1-P1 links to each other with S2-P2 among Fig. 1, and promptly the stacking opening P1 of equipment S1 is connected with the stacking opening P2 of equipment S2, and 5 equipment connect to form annular by P1, P2 and pile up.The annular stack stacking device is supported two stacking opening at most, and each stacking opening can be single physical port, also can be the aggregation group of physical port.
Shortcoming of the prior art is:
Pile up the flow that link need carry many stack members between the stack equipment that annular is piled up, therefore, the traffic carrying capacity of piling up link becomes flow and transmits bottleneck; Simultaneously, it is long at the inner forward-path of pile system to pile up message, and store-and-forward delay is big; The annular stack member adds with withdrawing from and causes whole piling up to carry out collecting topology and calculating again, in the recalc process, can't guarantee the normal transmitting-receiving of service message.
Summary of the invention
The invention provides a kind of star-shaped stack system and method, to realize efficient expansion to pile system.
The invention provides a kind of star-shaped stack system, comprise by main territory and a plurality of star-shaped stack topology of forming from the territory; Described main territory comprises one or more stack equipment, and the stack equipment in the main territory is interconnected by main territory stacking opening; Described one or more stack equipment that comprises from the territory is by being connected with described main territory from the territory stacking opening of described main territory; Described main territory has many groups from the territory stacking opening, and each group is hung one from the territory under the stacking opening of territory; Described star-shaped stack system comprises a plurality of territories of piling up, and each piles up the territory and comprises one from territory and described main territory; Wherein
The described territory of piling up is used for carrying out collecting topology in originally piling up the territory scope, and obtains when originally piling up territory collecting topology end and transmit in the territory of originally piling up the territory and the source filter table; After receiving the overall topological convergence notice of described main territory transmission, arrive the forwarding rule that other pile up the territory according to the forwarding regular refresh that arrives described main territory;
Described main territory is used to participate in to pile up collecting topology in the territory in territory, and obtains when collecting topology finishes in piling up the territory in territory and transmit in the territory of piling up the territory and the source filter table; In piling up the territory in territory, all during topological convergence, send overall topological convergence notice.
Described main territory also is used for:
When described main territory comprises a plurality of stack equipment, in described main territory, carry out collecting topology, and after described main territory topological convergence, participate in collecting topology in the described territory of piling up the territory; In all pile up the territory in territory, during topological convergence, judge overall topological convergence, send overall topological convergence notice.
Stack equipment in the described main territory specifically is used for:
When collecting topology is piled up in the territory in territory in participation, declare message with this mutual topology of other stack equipments of piling up in the territory, obtain and the different corresponding topology declaration messages in territory that pile up according to the domain identifier information of piling up of configuration, further know the corresponding topology information of piling up the territory according to topology declaration message, after collecting topology finishes in piling up the territory, territory, calculate in the territory of piling up the territory and transmit and the source filter table.
Stack equipment in the described main territory also is used for:
With the mutual topological lastest imformation of other stack equipments in the described main territory, transmit and the source filter table in the territory according to the local storage of topological lastest imformation renewal that receives.
The described stack equipment that piles up in the territory specifically is used for:
Carry out collecting topology with described other stack equipments that pile up in the territory;
Described pile up in the territory, territory collecting topology and finish after, calculate in the described territory of piling up the territory and transmit and the source filter table;
After receiving overall topological convergence notice, arrive described forwarding rule of piling up territory stack equipment in addition according to the forwarding regular refresh that arrives described main territory.
The described territory of piling up also is used for:
If topological incident takes place originally to pile up the territory, only in originally piling up the territory scope, carry out collecting topology, and after originally piling up the territory topological convergence, pile up the territory by described main territory to other and send overall topological convergence notice;
If other pile up the territory topological incident take place, originally pile up the territory and do not carry out collecting topology, after described other pile up the territory topological convergence, receive the overall topological convergence notice that described main territory sends, pile up the forwarding rule in territory according to originally piling up described other of forwarding regular refresh arrival that arrive described main territory in the territory.
When described main territory comprised a plurality of stack equipment, each group was positioned on the stack equipment in different main territories from the territory stacking opening.
A kind of stacking method that is applied to star-shaped stack system, this method further comprises:
Pile up the territory and in originally piling up the territory scope, carry out collecting topology, and when originally piling up territory collecting topology end, obtain and transmit in the territory of originally piling up the territory and the source filter table;
Main territory participates in piling up collecting topology in the territory in territory, obtains after piling up the territory topological convergence and transmits in the territory of piling up the territory and the source filter table; And after all pile up the territory topological convergence, sending overall topological convergence notice, notice is piled up the territory and is arrived the forwarding rule that other pile up the territory according to the forwarding regular refresh that arrives described main territory.
Described main territory participates in piling up in the territory in territory before the collecting topology, also comprises:
When described main territory comprised a plurality of stack equipment, collecting topology in the main territory was carried out in described main territory, and carried out the step that collecting topology in the territory in territory is piled up in participation after the topological convergence in main territory.
Described main territory participates in piling up that collecting topology comprises in the territory in territory:
Described main territory and the mutual topology declaration of other stack equipments message that piles up in the territory, obtain and the different corresponding topology declaration messages in territory that pile up according to the domain identifier information of piling up of configuration, further know the corresponding topology information of piling up the territory, carry out collecting topology in the territory piling up of correspondence according to topology declaration message.
Described main territory also comprises before sending overall topological convergence notice:
The mutual topological lastest imformation of other stack equipments in stack equipment in the described main territory and the described main territory is transmitted and the source filter table in the territory according to the local storage of topological lastest imformation renewal that receives.
Collecting topology is carried out in the described territory of piling up in originally piling up the territory scope, and comprises originally piling up to obtain to transmit in the territory of originally piling up the territory with the source filter table when territory collecting topology finishes: described other stack equipments that pile up the stack equipment the territory in and originally pile up in the territory carry out collecting topology; Described pile up in the territory, territory collecting topology and finish after, described piling up in the described territory of piling up the territory of the stack equipment calculating territory in transmitted and the source filter table;
Described forwarding regular refresh according to the described main territory of arrival arrives other forwarding rules of piling up the territory and comprises: after receiving overall topological convergence notice, the described stack equipment that piles up in the territory is inquired about and is transmitted in the described territory and the source filter table, arrives described forwarding rule of piling up overseas stack equipment according to the forwarding regular refresh that wherein arrives described main territory.
Also comprise:
When piling up the territory when topological incident takes place, collecting topology is only carried out in the described territory of piling up in originally piling up the territory scope, and after originally piling up the territory topological convergence, piles up the territory by described main territory to other and send overall topological convergence notice;
When other pile up the territory when topological incident takes place, collecting topology is not carried out in the described territory of piling up, after described other pile up the territory topological convergence, receive the overall topological convergence notice that described main territory sends, pile up the forwarding rule in territory according to originally piling up described other of forwarding regular refresh arrival that arrive described main territory in the territory.
Compared with prior art, the present invention has the following advantages at least:
Among the present invention,, effectively improved and piled up link bandwidth, improved the connection reliability between the master and slave equipment, increased stack member quantity by making up a plurality of Y-connection topologys that the territory is formed of piling up; And simplified the complicated topology of piling up and transmitted the calculating that concerns down, and the incident of piling up has improved whole stability of piling up to whole influence of piling up.
Description of drawings
Fig. 1 is that annular of the prior art is piled up the system group network schematic diagram;
Fig. 2 is the instantiation networking schematic diagram of the star-shaped stack system that provides in the application scenarios of the present invention;
Fig. 3 is the main territory networking schematic diagram of star-shaped stack system shown in Figure 2;
Fig. 4 is the schematic flow sheet that is applied to the stacking method of star-shaped stack system provided by the invention;
Fig. 5 is the isoboles in the star-shaped stack territory 1 that provides in the application scenarios of the present invention;
Fig. 6 is the isoboles in the star-shaped stack territory 2 that provides in the application scenarios of the present invention;
Fig. 7 is the isoboles in the star-shaped stack territory 3 that provides in the application scenarios of the present invention;
Fig. 8 is the isoboles in the star-shaped stack territory 4 that provides in the application scenarios of the present invention;
Fig. 9 is the flow chart schematic diagram of the stacking method that is applied to star-shaped stack system that provides in the application scenarios of the present invention.
Embodiment
Core concept of the present invention is: a kind of star-shaped stack system is provided, this pile system comprise main territory and with a plurality of territories of piling up of main territory Y-connection, and main territory with pile up the territory and form by one or more stack equipment respectively, main territory belongs to each and piles up the territory.When carrying out collecting topology, the stack equipment that respectively piles up in the territory carries out piling up collecting topology in the territory, transmit and the source filter table in the computational fields as a result according to collecting topology in the territory, and use this to pile up the forwarding Policy Updates that the territory arrives main territory to arrive the forwarding rule that other pile up the territory.
The invention provides a kind of star-shaped stack system, comprise by main territory and a plurality of star-shaped stack topology of forming from the territory; Described main territory comprises one or more stack equipment, and the stack equipment in the main territory is interconnected by main territory stacking opening; Described one or more stack equipment that comprises from the territory is by being connected with described main territory from the territory stacking opening of described main territory; Described main territory has many groups from the territory stacking opening, and each group is hung one from the territory under the stacking opening of territory; Described star-shaped stack system comprises a plurality of territories of piling up, and each piles up the territory and comprises one from territory and described main territory; Wherein
The described territory of piling up is used for carrying out collecting topology in originally piling up the territory scope, and obtains when originally piling up territory collecting topology end and transmit in the territory of originally piling up the territory and the source filter table; After receiving the overall topological convergence notice of described main territory transmission, arrive the forwarding rule that other pile up the territory according to the forwarding regular refresh that arrives described main territory;
Described main territory is used to participate in to pile up collecting topology in the territory in territory, and obtains when collecting topology finishes in piling up the territory in territory and transmit in the territory of piling up the territory and the source filter table; In piling up the territory in territory, all during topological convergence, send overall topological convergence notice.
Figure 2 shows that the concrete example of the star-shaped stack system that the present invention's one application scenarios provides.This star-shaped stack system comprises main territory and piles up territory 01,02,03 and 04 that main territory belongs to each and piles up the territory.
Wherein, comprise main equipment Master slot1 in the main territory, as the control centre of pile system, be responsible for piling up topology calculating, pile up incident management, distribute and pile up resource such as Slot ID (member device sign) etc.Main territory is connected with main overseas stack equipment with P4-2 with P3-2 and P4-1 with P2-2, P3-1 with P1-2, P2-1 by stacking opening group P1-1 respectively, forms and piles up territory 01,02,03 and 04.Go back configuring stacking domain identifier information in the main territory and pile up the territory, for example 01,02,03 and 04 can be used as and pile up domain identifier information and be used for distinguishing and respectively pile up the territory to distinguish difference.
Respectively pile up in the territory to remove and comprise main overseasly, also comprise, respectively in the territory, comprise single or a plurality of stack equipments from the territory.Same piling up is called member in the territory mutually between each Slot in the territory.The Slot that corresponding same pile system, difference pile up between the territory claims overseas member mutually.Pile up respectively that stack equipment in the territory can constitute chain or annular is piled up.
In the star-shaped stack system that application scenarios of the present invention provides, can comprise a plurality of stack equipments in the main territory, as shown in Figure 3, comprise Master slot1-1 and Master slot1-2 in the main territory, Master slot1-1 is connected with P0-2 by main territory stacking opening P0-1 with Master slot1-2; Main territory is connected with stack equipment in the territory from the territory stacking opening by many groups, and each group lays respectively on Masterslot1-1 and the Master slot1-2 from two stacking opening of territory stacking opening.When main territory comprised a plurality of stack equipment, each group was positioned on the stack equipment in different main territories from the territory stacking opening.
The invention provides a kind of stacking method that is applied to above-mentioned star-shaped stack system, as shown in Figure 4, this method further comprises:
Step 401 is piled up the territory and carry out collecting topology in originally being piled up the territory scope, and obtains when originally piling up territory collecting topology end and transmit in the territory of originally piling up the territory and the source filter table;
Below in conjunction with Fig. 2 and pile system shown in Figure 3 the stacking method that is applied to star-shaped stack system provided by the invention is introduced.
Should to the collecting topology of pile system, star-shaped stack system equivalence chaining ring shape can be piled up for convenience with in the scene, be about to overseas member and main territory and regard an integral body as, the main territory in the territory after member and the equivalence constitutes chain or annular is piled up.In conjunction with Fig. 2 and pile system shown in Figure 3, wherein, piling up territory 01 can equivalence be shown in Figure 5, and piling up territory 02 can equivalence be shown in Figure 6, and piling up territory 03 can be equivalent for shown in Figure 7, and piling up territory 04 can be equivalent for shown in Figure 8.
Concrete, should may further comprise the steps with the stacking method that is applied to star-shaped stack system that provides in the scene as shown in Figure 9:
When step 901, pile system initially powered on, each stack equipment carried out collecting topology.
The stack equipment that respectively piles up in the territory can be divided into stack equipment and stack equipment in the territory in the main territory, perhaps is called main overseas stack equipment.Main territory belongs to each and piles up the territory, carries out collecting topology in each piles up the territory.For piling up the topology declaration message that main overseas stack equipment sends in the territory, main territory obtains the stacking opening that receives this topology declaration message, and by this stacking opening or send corresponding topology with this stacking opening another stacking opening on the same group and declare message,, main territory piles up collecting topology in the territory so that participating in each.Each piles up to lead in the territory between overseas stack equipment and the adjacent stacks equipment and carries out collecting topology by stacking opening transmitting-receiving topology declaration message.
Concrete, each stack equipment is in the known topology information of local record self, and by and pile up between other member devices of direct neighbor in the territory mutual topology declaration message and collect the topological relation that originally piles up the territory.Carry topology information in the topology declaration message, comprise annexation, member device numbering, the member device priority of stacking opening, the contents such as member's bridge MAC of member device.
Initial time, stack equipment have only write down the topology information of self.After the stacking opening state of stack equipment became up, stack equipment periodically sent known topology information by topology declaration message from the stacking opening of up state.After member device is received the topology information of immediate neighbor transmission, upgrade the topology information of local record.When stack equipment carries out collecting topology, be that scope is carried out collecting topology specifically, promptly carry out piling up collecting topology in the territory to pile up the territory.Stack equipment piles up topology information at the topological sequences tail with what stacking opening 1 was received, add that this facility information is to stacking opening 2 forwardings, the topology information of piling up that stacking opening 2 is received adds this facility information to stacking opening 1 forwarding, piles up only stacking opening transmission in the territory of topological message.
In networking shown in Figure 2, when having only a stack equipment in the main territory, stack equipment is connected with main overseas stack equipment by self stacking opening in this main territory, receives each topology of piling up the territory and declares message, collects each and piles up topology information in the territory.Main overseas stack equipment belongs to the single territory of piling up, and collects the topology information of originally piling up in the territory.Special, when Master slot1 carries out collecting topology in each piles up the territory, this is piled up overseas stack equipment declare that as self part overseas member's topological jumping figure is consistent with this equipment.When comprising a plurality of stack equipment in the main territory, each group is positioned on the stack equipment in different main territories from the territory stacking opening, and in the networking for example shown in Figure 3, each group lays respectively on Master slot 1-1 and the Master slot 1-2 from the territory stacking opening.When carrying out collecting topology, the stack equipment in the main territory at first carries out collecting topology in main territory, and calculates in the territory in described main territory and transmit and the source filter table; After the topological convergence of main territory, the stack equipment in the main territory participates in piling up the collecting topology in territory.Concrete, the stack equipment main territory in passes through to be connected with stack equipment in the territory from the territory stacking opening, and carries out collecting topology with the stack equipment in the territory.Stack equipment in the main territory according to the domain identifier information of piling up of configuration judge that the topology declaration message receive carries topology information belonged to piles up the territory, carry out collecting topology piling up the territory accordingly.When stack equipment connects different stack equipments in the territory in the main territory, stack equipment in the main territory calculates in the different territories of piling up the territory and transmits the derivation filter table, and after calculating successfully, other stack equipments in main territory send topological lastest imformation, and other stack equipments in the main territory obtain in the territory that this stack equipment obtains according to this topology lastest imformation and transmit the derivation filter table; Equally, after the stack equipment in the main territory receives in the main territory the topological lastest imformation that other stack equipments send, obtain in the territory that other stack equipments calculate according to topological lastest imformation and to transmit the derivation filter table.
Concrete, stack equipment judges that the mode whether collecting topology finishes can be provided with according to actual needs flexibly.
Should be with providing 3 kinds of modes to judge in the territory that collecting topology finishes in the scene:
A, to pile up the territory be ring topology and when receiving the topological data that the member is consistent, sequence is opposite, judge that piling up collecting topology in the territory finishes by first stacking opening and second stacking opening (being stacking opening 1 and stacking opening 2) when the stack equipment place;
B, when stack equipment place topology be chain when topology, if stack equipment comprises first stacking opening and second stacking opening, and by first stacking opening and second stacking opening receive comprise endpoint device pile up topology information the time, judge that piling up collecting topology in the territory finishes; If stack equipment comprises a stacking opening, and receive the topology information of endpoint device, judge that piling up collecting topology in the territory finishes by this stacking opening;
C, surpass default collecting topology during the time, judge that piling up collecting topology in the territory finishes.
For the A mode, be example with the equivalent schematic of piling up territory 04 among Fig. 8, the topological data that Slot 8 P1-2 receive is: Slot8-Slot9-Slot1{Slot2, Slo3}-Slot7; The topological data that Slot 8 P1-1 receive is Slot8-Slot7-Slot1{Slot2, Slo3, and Slo4, Slo5}-Slot9, thus, Slot 8 can judge and pile up topological convergence in 04 territory, territory that promptly collecting topology finishes in the territory.Wherein, overseas member { ... } data do not participate in the judgement of topological convergence in the territory.
For the B mode, be example with the equivalent schematic of piling up territory 04 among Fig. 8 still, at this moment, Slot9 is not connected with the P4-2 stacking opening of Slot1, when Slot 8 received the topology information that comprises Slot9 by P1-1 and P1-2, Slot 8 judged that collecting topology finishes in the territory.When Slot 9 received the topology declaration message that comprises self topology information, Slot9 judged collecting topology end in the territory.
For the C mode, generally when user error configuration or stacking opening fault, use.
Stack equipment in stack equipment is main territory also needs to judge overall topological convergence.Concrete, the domain identifier information of piling up in stack equipment configuration native system in the main territory, when each pile up domain identifier information correspondence pile up in the territory, territory topological convergence the time, stack equipment is determined overall topological convergence in the main territory, and sends overall topological convergence notice in all pile up the territory.Concrete, stack equipment can participate in the topological convergence that each piles up the territory in main the territory in, in each piles up the territory, territory during topological convergence, and the judgement global convergence; Stack equipment can also participate in the topological convergence that part is piled up the territory in the main territory, and receive the topological update notification that stack equipment in other main territories sends, that judges this topology update notification correspondence piles up the territory topological convergence, during topological convergence, judges global convergence in each piles up the territory, territory.
Concrete, transmit and comprise with the source filter table and to transmit in the territory and source filter table and overseas transmitting and the source filter table.For stack equipment in the main territory, when comprising a plurality of stack equipment in the main territory, at first when the topological convergence of main territory, calculate in the territory in main territory and transmit and the source filter table.Because main territory belongs to each and piles up the territory, so stack equipment only need obtain in each territory of piling up the territory and transmits and the source filter table in the main territory.Main overseas stack equipment then needs to calculate to be transmitted in the territory of originally piling up the territory and the source filter table, and obtains overseas transmitting and the source filter table.
The mode of transmitting in the stack equipment computational fields with the source filter table comprises:
When piling up the territory when being ring topology, stack equipment calculates and transmits and the source filter table by critical path method (CPM); When piling up the territory is chain when topology, and stack equipment will be transmitted list item as the clean culture of this stacking opening by the topological data that stacking opening 1 receives, and as the source filter table of another stacking opening 2 on the same group; In like manner, stack equipment will be transmitted list item as the clean culture of this stacking opening by the topological data that port 2 receives, and as the source filter table of another stacking opening 1 on the same group.
Stack equipment receives overall topological convergence notice, and computational fields is transmitted outward and the source filter table.The account form that this is overseas transmits with the source filter table is:
With overseas member's topology transmit with the source filter with main territory in stack equipment treat equally, promptly directly by transmit in the territory with the source filter table in the main territory forwarding of stack equipment transmit and the source filter table with the topology that the source filtering rule refreshes overseas member.Stack equipment uses topology information, forwarding and the filtering rule of stack equipment in the main territory to upgrade overseas member's topology information, forwarding and filtering rule.
Concrete, when the stack equipment main territory in received the message that main overseas stack equipment sends, the target MAC (Media Access Control) address that carries according to this message was searched and is transmitted in the territory and the source filter table, carries out the message forwarding to corresponding stack equipment; Main overseas stack equipment carries out message and transmits originally piling up according to transmitting in the territory with the source filter table in the territory, carry out the message forwarding according to overseas transmitting with the source filter table is piled up the stack equipment in territory for other to destination address the stack equipment of message in corresponding main territory.
In the application scenarios provided by the invention, when the stack equipment generation change in topology in the main territory, each piles up the territory change in topology takes place, and whole pile system need carry out collecting topology again, the process of this collecting topology is described with above-mentioned step 901-903, repeats no more.When leading overseas stack equipment generation change in topology, this stack equipment that piles up in the territory carries out collecting topology, and other pile up the territory does not need to carry out collecting topology.After this piles up collecting topology in the territory and finishes, stack equipment in the main territory can send overall collecting topology end notification to respectively piling up the territory, and other respectively pile up the overseas stack equipment of master in the territory according to the forwarding rule of the overseas stack equipment of forwarding regular refresh of stack equipment in the main territory.
By adopting method provided by the invention, make up a plurality of Y-connection topologys that the territory is formed of piling up, effectively improved and piled up link bandwidth, improved the connection reliability between the master and slave equipment, increase stack member quantity, and, the complicated calculating that topology is transmitted relation down of piling up simplified based on the topology collecting method in territory, and the incident of piling up improves whole stability of piling up to whole influence of piling up.
The invention provides a kind of star-shaped stack system, comprise by main territory and a plurality of star-shaped stack topology of forming from the territory; Described main territory comprises one or more stack equipment, and the stack equipment in the main territory is interconnected by main territory stacking opening; Described one or more stack equipment that comprises from the territory is by being connected with described main territory from the territory stacking opening of described main territory; Described main territory has many groups from the territory stacking opening, and each group is hung one from the territory under the stacking opening of territory; Described star-shaped stack system comprises a plurality of territories of piling up, and each piles up the territory and comprises one from territory and described main territory; Wherein
The described territory of piling up is used for carrying out collecting topology in originally piling up the territory scope, and obtains when originally piling up territory collecting topology end and transmit in the territory of originally piling up the territory and the source filter table; After receiving the overall topological convergence notice of described main territory transmission, arrive the forwarding rule that other pile up the territory according to the forwarding regular refresh that arrives described main territory;
Described main territory is used to participate in to pile up collecting topology in the territory in territory, and obtains when collecting topology finishes in piling up the territory in territory and transmit in the territory of piling up the territory and the source filter table; In piling up the territory in territory, all during topological convergence, send overall topological convergence notice.
Concrete, described main territory can comprise single or a plurality of stack equipments, when described main territory comprised a plurality of stack equipment, described main territory also was used for carrying out collecting topology in described main territory, and participated in collecting topology in the described territory of piling up the territory after described main territory topological convergence; In all pile up the territory in territory, during topological convergence, judge overall topological convergence, send overall topological convergence notice.
When described main territory participates in piling up in the territory in territory collecting topology, stack equipment in the described main territory specifically is used for: declare message with this mutual topology of other stack equipments of piling up in the territory, obtain and the different corresponding topology declaration messages in territory that pile up according to the domain identifier information of piling up of configuration, further know the corresponding topology information of piling up the territory according to topology declaration message, after collecting topology finishes in piling up the territory, territory, calculate in the territory of piling up the territory and transmit and the source filter table.
When described main territory comprises a plurality of stack equipment, stack equipment in the described main territory can connect different in the territory stack equipment, stack equipment in the main territory calculates in the different territories of piling up the territory and transmits and the source filter table, at this moment, the mutual topological lastest imformation of other stack equipments in stack equipment in the main territory and the main territory, upgrade according to the topological lastest imformation that receives in the territory of local storage and transmit and the source filter table, by the topological lastest imformation that sends to other stack equipments other stack equipments are obtained in the territory that this locality calculates and transmit and the source filter table.
The described stack equipment that piles up in the territory also is used for: with the described mutual topology declaration of other stack equipments message that piles up in the territory, pile up the collecting topology in territory; Described pile up in the territory, territory collecting topology and finish after, calculate in the described territory of piling up the territory and transmit and the source filter table; When system's overall situation topological convergence, receive the overall topological convergence notice that main territory sends, arrive the forwarding rule of piling up territory stack equipment in addition under this equipment according to the forwarding regular refresh that arrives main territory.
In the star-shaped stack system provided by the invention, the described territory of piling up also is used for:
If topological incident takes place originally to pile up the territory, only in originally piling up the territory scope, carry out collecting topology, and after originally piling up the territory topological convergence, pile up the territory by described main territory to other and send overall topological convergence notice;
If other pile up the territory topological incident take place, originally pile up the territory and do not carry out collecting topology, after described other pile up the territory topological convergence, receive the overall topological convergence notice that described main territory sends, pile up the forwarding rule in territory according to originally piling up described other of forwarding regular refresh arrival that arrive described main territory in the territory.
In the star-shaped stack system provided by the invention, when described main territory comprised a plurality of stack equipment, each group was positioned on the stack equipment in different main territories from the territory stacking opening.
By adopting pile system provided by the invention, make up a plurality of Y-connection topologys that the territory is formed of piling up, effectively improved and piled up link bandwidth, improved the connection reliability between the master and slave equipment, increase stack member quantity; Simultaneously, simplified the complicated topology of piling up based on the topology collecting method in territory and transmitted the calculating that concerns down, and the incident of piling up improves whole stability of piling up to whole influence of piling up.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, 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 each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be merged into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (13)
1. a star-shaped stack system is characterized in that, comprises by main territory and a plurality of star-shaped stack topology of forming from the territory; Described main territory comprises one or more stack equipment, and the stack equipment in the main territory is interconnected by main territory stacking opening; Described one or more stack equipment that comprises from the territory is by being connected with described main territory from the territory stacking opening of described main territory; Described main territory has many groups from the territory stacking opening, and each group is hung one from the territory under the stacking opening of territory; Described star-shaped stack system comprises a plurality of territories of piling up, and each piles up the territory and comprises one from territory and described main territory; Wherein
The described territory of piling up is used for carrying out collecting topology in originally piling up the territory scope, and obtains when originally piling up territory collecting topology end and transmit in the territory of originally piling up the territory and the source filter table; After receiving the overall topological convergence notice of described main territory transmission, arrive the forwarding rule that other pile up the territory according to the forwarding regular refresh that arrives described main territory;
Described main territory is used to participate in to pile up collecting topology in the territory in territory, and obtains when collecting topology finishes in piling up the territory in territory and transmit in the territory of piling up the territory and the source filter table; In piling up the territory in territory, all during topological convergence, send overall topological convergence notice.
2. star-shaped stack system as claimed in claim 1 is characterized in that, described main territory also is used for:
When described main territory comprises a plurality of stack equipment, in described main territory, carry out collecting topology, and after described main territory topological convergence, participate in collecting topology in the described territory of piling up the territory; In all pile up the territory in territory, during topological convergence, judge overall topological convergence, send overall topological convergence notice.
3. star-shaped stack system as claimed in claim 1 or 2 is characterized in that, the stack equipment in the described main territory specifically is used for:
When collecting topology is piled up in the territory in territory in participation, declare message with this mutual topology of other stack equipments of piling up in the territory, obtain and the different corresponding topology declaration messages in territory that pile up according to the domain identifier information of piling up of configuration, further know the corresponding topology information of piling up the territory according to topology declaration message, after collecting topology finishes in piling up the territory, territory, calculate in the territory of piling up the territory and transmit and the source filter table.
4. star-shaped stack system as claimed in claim 1 or 2 is characterized in that, the stack equipment in the described main territory also is used for:
With the mutual topological lastest imformation of other stack equipments in the described main territory, transmit and the source filter table in the territory according to the local storage of topological lastest imformation renewal that receives.
5. star-shaped stack system as claimed in claim 1 or 2 is characterized in that, the described stack equipment that piles up in the territory specifically is used for:
Carry out collecting topology with described other stack equipments that pile up in the territory;
Described pile up in the territory, territory collecting topology and finish after, calculate in the described territory of piling up the territory and transmit and the source filter table;
After receiving overall topological convergence notice, arrive described forwarding rule of piling up territory stack equipment in addition according to the forwarding regular refresh that arrives described main territory.
6. star-shaped stack system as claimed in claim 1 is characterized in that, the described territory of piling up also is used for:
If topological incident takes place originally to pile up the territory, only in originally piling up the territory scope, carry out collecting topology, and after originally piling up the territory topological convergence, pile up the territory by described main territory to other and send overall topological convergence notice;
If other pile up the territory topological incident take place, originally pile up the territory and do not carry out collecting topology, after described other pile up the territory topological convergence, receive the overall topological convergence notice that described main territory sends, pile up the forwarding rule in territory according to originally piling up described other of forwarding regular refresh arrival that arrive described main territory in the territory.
7. star-shaped stack system as claimed in claim 1 is characterized in that, when described main territory comprised a plurality of stack equipment, each group was positioned on the stack equipment in different main territories from the territory stacking opening.
8. a stacking method that is applied to the described star-shaped stack system of claim 1 is characterized in that, this method further comprises:
Pile up the territory and in originally piling up the territory scope, carry out collecting topology, and when originally piling up territory collecting topology end, obtain and transmit in the territory of originally piling up the territory and the source filter table;
Main territory participates in piling up collecting topology in the territory in territory, obtains after piling up the territory topological convergence and transmits in the territory of piling up the territory and the source filter table; And after all pile up the territory topological convergence, sending overall topological convergence notice, notice is piled up the territory and is arrived the forwarding rule that other pile up the territory according to the forwarding regular refresh that arrives described main territory.
9. method as claimed in claim 8 is characterized in that, described main territory participates in piling up in the territory in territory before the collecting topology, also comprises:
When described main territory comprised a plurality of stack equipment, collecting topology in the main territory was carried out in described main territory, and carried out the step that collecting topology in the territory in territory is piled up in participation after the topological convergence in main territory.
10. method as claimed in claim 8 or 9 is characterized in that, described main territory participates in piling up that collecting topology comprises in the territory in territory:
Described main territory and the mutual topology declaration of other stack equipments message that piles up in the territory, obtain and the different corresponding topology declaration messages in territory that pile up according to the domain identifier information of piling up of configuration, further know the corresponding topology information of piling up the territory, carry out collecting topology in the territory piling up of correspondence according to topology declaration message.
11. method is characterized in that as claimed in claim 8 or 9, described main territory also comprises before sending overall topological convergence notice:
The mutual topological lastest imformation of other stack equipments in stack equipment in the described main territory and the described main territory is transmitted and the source filter table in the territory according to the local storage of topological lastest imformation renewal that receives.
12. method as claimed in claim 8 is characterized in that,
Collecting topology is carried out in the described territory of piling up in originally piling up the territory scope, and comprises originally piling up to obtain to transmit in the territory of originally piling up the territory with the source filter table when territory collecting topology finishes: described other stack equipments that pile up the stack equipment the territory in and originally pile up in the territory carry out collecting topology; Described pile up in the territory, territory collecting topology and finish after, described piling up in the described territory of piling up the territory of the stack equipment calculating territory in transmitted and the source filter table;
Described forwarding regular refresh according to the described main territory of arrival arrives other forwarding rules of piling up the territory and comprises: after receiving overall topological convergence notice, the described stack equipment that piles up in the territory is inquired about and is transmitted in the described territory and the source filter table, arrives described forwarding rule of piling up overseas stack equipment according to the forwarding regular refresh that wherein arrives described main territory.
13. method as claimed in claim 8 is characterized in that, also comprises:
When piling up the territory when topological incident takes place, collecting topology is only carried out in the described territory of piling up in originally piling up the territory scope, and after originally piling up the territory topological convergence, piles up the territory by described main territory to other and send overall topological convergence notice;
When other pile up the territory when topological incident takes place, collecting topology is not carried out in the described territory of piling up, after described other pile up the territory topological convergence, receive the overall topological convergence notice that described main territory sends, pile up the forwarding rule in territory according to originally piling up described other of forwarding regular refresh arrival that arrive described main territory in the territory.
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| CN2009102233503A CN101702678B (en) | 2009-11-19 | 2009-11-19 | Star-shaped stack system and method thereof |
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|---|---|---|---|
| CN2009102233503A CN101702678B (en) | 2009-11-19 | 2009-11-19 | Star-shaped stack system and method thereof |
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