CN1521986A - Multi-node network management method based on spanning tree protocol - Google Patents
Multi-node network management method based on spanning tree protocol Download PDFInfo
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- CN1521986A CN1521986A CNA031024335A CN03102433A CN1521986A CN 1521986 A CN1521986 A CN 1521986A CN A031024335 A CNA031024335 A CN A031024335A CN 03102433 A CN03102433 A CN 03102433A CN 1521986 A CN1521986 A CN 1521986A
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Abstract
The invention discloses a multiple node network management process based on spanning tree protocol comprises the steps of, dividing a plurality of physical net bridges into a logic net bridge, establishing the mapping relation between the internal ports and the logic ports in physical net bridges, the external ports of the physical net bridges being managed through spanning tree protocol, the external ports of the physical net bridges being managed through spanning tree protocol, the physical net bridges realize data interaction through the internal ports, wherein the internal ports receive the data and submit to the logic ports for processing, the logic ports transfer no data from the internal port.
Description
Technical field
The present invention relates to network management technology, be meant a kind of multinode network management method especially based on Spanning-Tree Protocol.
Background technology
At present, along with the growth of market to the Ethernet access demand, increasingly sophisticatedization of structure of Ethernet, the full switch network architecture of large-scale bridge occurred forming, and how to have produced thereupon in large-scale bridge effectively that the operation Spanning-Tree Protocol manages this new problem by a plurality of physical bridge.Usually said Spanning-Tree Protocol comprises common Spanning-Tree Protocol (STP), RSTP (RSTP).In traditional common generation tree or RSTP application, take centralization, all of the port on the same physical bridge is all set by common generation or RSTP is managed.Like this, a generation tree entity can only operate on the physical bridge.And, also do not have ripe solution for many physical bridge structure.
For instance, referring to Ethernet structure shown in Figure 1, physical bridge A, B, C, D are linked to each other in twos.If each physical bridge set up generates tree, then can cause between a plurality of generations trees conflict and can't unified management; If only being set up one, all physics bridge ports generate tree, then the loop configuration in the switching network will be become a tree that does not have loop by STP/RSTP change topology, such as: if set up the generation tree as Root Bridge with physical bridge A among Fig. 1, then the path between port B2 to C2, C3 to D3 and the B1 to D1 will be disconnected by STP/RSTP, can't intercom mutually, thereby lost and transparently between the information of STP/RSTP shared the characteristics of information mutual communication between port.
Particularly, more require the port on a plurality of physical bridge in the large-scale bridge is logically treated as the port of same physical bridge recently along with multiprotocol label switching (mpls) with based on the use of this quasi-protocol of Virtual Private Network service (VPLS) of MPLS.And adopt traditional approach operation STP/RSTP will bring between large-scale bridge internal port can't proper communication problem.
Summary of the invention
In view of this, the object of the present invention is to provide the method for operation Spanning-Tree Protocol in a kind of multinode network structure, make it in the full switching network structure of forming large-scale bridge by a plurality of physical bridge, move single S TP/RSTP and manage.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
A kind of multinode network management method based on Spanning-Tree Protocol, may further comprise the steps: an above physical bridge of an above node correspondence is divided into a logic bridge, the port of setting the intercommunication of logic bridge internal physical bridge is an internal port, and all the other ports on the physical bridge are outside port; Internal port to each physical bridge is provided with virtual logic port, and sets up the mapping relations between all internal ports and this logic port in this physical bridge; Manage by Spanning-Tree Protocol between the outside port of physical bridge; Carry out data interaction by logic port between same physical bridge outside port and the internal port; Carry out data interaction by separately logic port by internal port between the physical bridge; The data that internal port is received are submitted to it has the logic port of mapping relations to handle; Logic port is not to the data of any internal port forwarding from internal port.
Data exchange process between described same physical bridge outside port of this method and the internal port further comprises: the message information from logic bridge outside is entered by outside port, outside port is committed to the logic port of physical bridge under this outside port with its message information of receiving, is transmitted to internal port by logic port; The internal port of physical bridge is committed to the logic port that mapping relations are arranged with it after receiving message information, this logic port judges whether need be to the outside message information of being received of transmitting of logic bridge, if then this message information is sent to external network via the outside port of physical bridge under the current logic port; Otherwise keep.
Data exchange process between the described physical bridge of this method further comprises: the logic port by physical bridge will duplicate from the message information that outside port is received, and being sent to the internal port of other physical bridge via the internal port that mapping relations are arranged with it, the internal port of other physical bridge is committed to the logic port that mapping relations are arranged with it after receiving message information.
The described mapping relations of setting up physical bridge internal port and logic port of this method are that all internal ports that will belong to same physical bridge bundle a logic port that should physical bridge.
This method further comprises: each outside port to physical bridge is provided with virtual logic port, and sets up the mapping relations between each outside port and each logic port in this physical bridge.
This method further comprises: the logic port that has mapping relations with internal port is set to open mode all the time.
This method is described, and logic port is set is that the priority of internal port is set to the highest for open mode all the time.
The described Spanning-Tree Protocol of this method is common Spanning-Tree Protocol.
The described Spanning-Tree Protocol of this method is a RSTP.
By the above as can be seen, the present invention program is not because need common generation tree/RSTP is carried out big modification, only virtual logic bridge and the logic port that is provided with, and set up the mapping relations of physical port and logic port, therefore realize simply being easy to management; And, owing to adopted the method for logic port mapping, can adopt different mapping modes according to actual conditions, use very flexible.
Description of drawings
Fig. 1 is a structural representation of being made of a large-scale bridge a plurality of physical bridge;
Fig. 2 is the logical construction schematic diagram of Fig. 1.
Embodiment
The present invention is further described in more detail below in conjunction with drawings and the specific embodiments.
The present invention program logically treats a plurality of physical bridge in the Ethernet as a big bridge, make common generation tree/RSTP logically only manage the external port of big bridge, and, achieve the function of inner exchanging net in the inner information interaction that adopts between the management by methods port of setting up port mapping of big bridge.Generate the tree entity like this and be equivalent to only operate on the bridge, can not bring any trouble, and information interaction also can freely be carried out by mapping mechanism in big bridge inside the management of STP/RSTP.
Still the network topology structure with Fig. 1 is an example.From regarding physical bridge A, B, C, D integral body as a big bridge in logic, be referred to as logic bridge 101 as Fig. 1 among the present invention.Port A1, A2, A3, B1, B2, B3, C1, C2, C3, D1, D2, the D3 of physical bridge A, B, C, D is used for interconnected among Fig. 1, and these ports can be described as internal port with respect to logic bridge 101 among the present invention.The data that internal port can be received logic bridge 101 exchange between these logic bridge 101 internal physical bridges, but will note having only the adjacent port can swap data, and can not transmit, to avoid broadcast storm.Port A4, the B4 of physical bridge A, B, C, D, C4, D4 are as the external interface of logic bridge 101, connect external network LAN1～LAN3, be used for carrying out exchanges data with external network, these four ports can be described as outside port with respect to logic bridge 101 in the present invention.
If according to traditional approach operation STP/RSTP, the switching network that then inevitably has internal port to be connected to form will be become a tree that does not have loop by STP/RSTP change topology, so, just can't realize data interchange between the port, lose it logically as the function of inner exchanging net.And if allow STP/RSTP only handle outside port, the connection of not handling internal port also is not all right.Referring to Fig. 1, when being connected to form loop by LAN1 between A4 and the B4, if inner switching network can not transmit data between physical bridge A, B, then the effect of STP/RSTP also can't be brought into play.
From the above analysis, the main cause that the problems referred to above form is can not be handled by STP/RSTP by the topology that the interconnected network forms, and this internal network will shoulder also that the contradiction of task between the two of transmission message causes simultaneously.
But, if change an angle, the concrete annexation between ignorance logic bridge 101 internal ports, but, then can draw structure shown in Figure 2 from this network of logic view.Logically all be regarded as same internal port owing to be used for all of the port of interconnected simultaneously, ignored the inside linkloop that occurs among Fig. 1, therefore on this structural system, just can not have what problem at operation STP/RSTP.
According to top analysis, the solution that the present invention proposes is as follows:
For with the existing network compatibility, what the embodiment of the invention adopted is the STP/RSTP algorithm of stipulating in 802 serial protocols, this agreement is transmitted information by physical bridge protocol Data Unit (BPDU) message.Because in the running of Spanning-Tree Protocol, the all ports and the topology information of connection thereof all need to transmit by BPDU, if the BPDU message can not be transmitted in switching network inside, then not that the topology information that two ports of same physical bridge are received can't be by intercommunication, the consequence that causes is that outside port can't be unified to handle, can not generate correct topology, so the BPDU message must be exchanged in switching network inside.
Introduce the mapping mechanism of logic port and internal port between each protocol entity that moves above physical bridge and physical bridge: each physical bridge is used for intercommunicating physical port, be the logic port that the internal port unification is mapped to an inside, form the mapping structure of one-to-many.So, be equivalent to all internal ports of each physical bridge are regarded as a logic port.When the transmitting-receiving message, the BPDU message that any one the intercommunication port on the same physical bridge is received all will be reported to the internal logic port of this physical bridge to handle; Otherwise the BPDU message that the internal logic port on physical bridge sends duplicates many parts by mapping mechanism, and send to each internal port of this physical bridge a, thereby reach the mutual purpose of BPDU message information.And, can not blocked to fall in order to guarantee the internal logic port by accident, the priority of internal logic port is set to open mode all the time.By as above operation, though in fact STP/RSTP is still managing all of the port of all physical bridge, because the protection of the priority of the mapping mechanism of internal port and internal logic port, STP/RSTP can't work in logic bridge inside like this.
Network configuration below in conjunction with shown in Figure 1 is described in detail the solution of the present invention.
With physical bridge D is example, and internal port D1, D2, the D3 of physical bridge D is mapped to a logic port D0, promptly can be formulated as: logic port D0=internal port D1+ internal port D2+ internal port D3.Wherein, the logic port D0 here is the not necessary being that physical bridge D internal virtual is created.
The message mapping relations of agreement are:
(1) message that logic port → internal port: D0 sends duplicates 3 parts, send to respectively D1,
D2、D3。
(2) internal port → logic port: for the message that D1, D2, D3 receive, then former state transmission
Give D0.
Other physical bridge A of logic bridge 101, each internal port of B, C are set up and the mapping relations of logic port A0, B0, C0 separately too as stated above.
Wherein, the method for building up of port mapping mechanism is a lot, and the mode that bundles such as a plurality of physical ports that can take same physical bridge realizes.And the priority of internal logic port is set to open mode all the time, can take all physical bridge internal port priority to be set to the highest in concrete the enforcement.
With transmitting-receiving message between logic bridge 101 and the external network is example, and it sends receiving course is like this:
1) the BPDU message that transmits into from external network LAN3, D4 enters through outside port, be sent to logic port D0 by D4, D0 duplicates 3 parts with this message, be distributed to D1, D2, D3, be sent to port B1, A2, the C3 of physical bridge B, physical bridge A, physical bridge C at last by D1, D2, D3 respectively.
2) after the internal port A2 of physical bridge A receives this message, its former state is passed to the logic port A0 of this physical bridge A, A0 is according to the contained information of message, again it is handled, if desired to outside forwarded, then A0 sends to LAN1 by outside port A4, does not outwards transmit then reservation if do not need.
Equally, after the internal port B1 of physical bridge B receives this message, its former state is passed to B0, after B0 receives this message, externally transmit if desired, also may be sent to LAN1 by B4, so according to STP/RSTP, system can disconnect LAN1 automatically, to avoid forming network storm.
After the internal port C3 of physical bridge C receives this message, its former state is passed to C0, C0 handles it according to its content again, promptly transmits or keeps to external network LAN2.In addition, the common generation tree/rapid spanning-tree mode that outside port can retention criteria also can be unified to use the logic port mapping mechanism, and can not impact the use of STP/RSTP.For example: outside port D4 is also used the logic port mapping mechanism, it is mapped as logic port X0, internal port D1, D2, D3 are mapped as logic port X1.At first by outside port D4 received from the message that external network LAN3 transmits this moment, and D4 will report to logic port X0, and X0 sends it to logic port X1 again, and X1 duplicates 3 parts with this message, is sent to physical port D1, D2, D3 respectively.
So physical bridge A, B, C, D are regarded as a big logic bridge 101, port A4, B4, C4, D4 four outside ports as this logic bridge 101.In logic bridge 101 outsides, these four outside ports are managed by operation STP/RSTP; And in logic bridge 101 inside, then each internal port is managed by above-mentioned mapping mechanism, to realize message intercommunication between internal port.Thereby be implemented in the application of STP/RSTP on the switching network of a multinode.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (9)
1, a kind of multinode network management method based on Spanning-Tree Protocol, it is characterized in that, may further comprise the steps: an above physical bridge of an above node correspondence is divided into a logic bridge, the port of setting the intercommunication of logic bridge internal physical bridge is an internal port, and all the other ports on the physical bridge are outside port; Internal port to each physical bridge is provided with virtual logic port, and sets up the mapping relations between all internal ports and this logic port in this physical bridge; Manage by Spanning-Tree Protocol between the outside port of physical bridge; Carry out data interaction by logic port between same physical bridge outside port and the internal port; Carry out data interaction by separately logic port by internal port between the physical bridge; The data that internal port is received are submitted to it has the logic port of mapping relations to handle; Logic port is not to the data of any internal port forwarding from internal port.
2, according to the described method of claim 1, it is characterized in that, data exchange process between described same physical bridge outside port and the internal port further comprises: the message information from logic bridge outside is entered by outside port, outside port is committed to the logic port of physical bridge under this outside port with its message information of receiving, is transmitted to internal port by logic port; The internal port of physical bridge is committed to the logic port that mapping relations are arranged with it after receiving message information, this logic port judges whether need be to the outside message information of being received of transmitting of logic bridge, if then this message information is sent to external network via the outside port of physical bridge under the current logic port; Otherwise keep.
3, according to the described method of claim 1, it is characterized in that, data exchange process between the described physical bridge further comprises: the logic port by physical bridge will duplicate from the message information that outside port is received, and being sent to the internal port of other physical bridge via the internal port that mapping relations are arranged with it, the internal port of other physical bridge is committed to the logic port that mapping relations are arranged with it after receiving message information.
According to the described method of claim 1, it is characterized in that 4, the described mapping relations of setting up physical bridge internal port and logic port are that all internal ports that will belong to same physical bridge bundle a logic port that should physical bridge.
According to the described method of claim 1, it is characterized in that 5, this method further comprises: each outside port to physical bridge is provided with virtual logic port, and sets up the mapping relations between each outside port and each logic port in this physical bridge.
According to the described method of claim 1, it is characterized in that 6, this method further comprises: the logic port that has mapping relations with internal port is set to open mode all the time.
According to the described method of claim 6, it is characterized in that 7, the described logic port that is provided with is that the priority of internal port is set to the highest for open mode all the time.
According to the described method of claim 1, it is characterized in that 8, described Spanning-Tree Protocol is common Spanning-Tree Protocol.
According to the described method of claim 1, it is characterized in that 9, described Spanning-Tree Protocol is a RSTP.
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| CNB031024335A CN1323515C (en) | 2003-01-28 | 2003-01-28 | Multi-node network management method based on spanning tree protocol |
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| CNB031024335A CN1323515C (en) | 2003-01-28 | 2003-01-28 | Multi-node network management method based on spanning tree protocol |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403731C (en) * | 2004-12-30 | 2008-07-16 | 杭州华三通信技术有限公司 | Method for controlling communication transmission path in stacked equipment domain |
| CN101483575B (en) * | 2008-01-08 | 2011-11-16 | 阿尔卡特朗讯公司 | Method for protecting a network configuration set up by a spanning tree protocol |
| CN103026355A (en) * | 2010-03-18 | 2013-04-03 | 诺宝公司 | Database management system |
| CN104702537A (en) * | 2009-04-01 | 2015-06-10 | Nicira股份有限公司 | Method and apparatus for implementing and managing virtual switches |
| CN105227424A (en) * | 2015-10-20 | 2016-01-06 | 成都广达新网科技股份有限公司 | A kind of EOC local side is by the method and system of cascade bridge virtual interface |
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| US6032194A (en) * | 1997-12-24 | 2000-02-29 | Cisco Technology, Inc. | Method and apparatus for rapidly reconfiguring computer networks |
| AU2024300A (en) * | 1998-12-01 | 2000-06-19 | Thor Simon | Improved signaling system for telecommunications |
| TW406494B (en) * | 1999-04-27 | 2000-09-21 | D Link Corp | Loop control method for network switching |
| AU4791900A (en) * | 1999-05-06 | 2000-11-21 | Net Insight Ab | Synchronization method and apparatus |
| SE518179C2 (en) * | 1999-05-06 | 2002-09-03 | Net Insight Ab | Frame synchronization in dynamic synchronous transfer mode network, involves defining frame synchronization distribution spanning tree, to span network in terms of node to neighbor node physical link branches |
| US6982960B2 (en) * | 2001-03-09 | 2006-01-03 | Motorola, Inc. | Protocol for self-organizing network using a logical spanning tree backbone |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100403731C (en) * | 2004-12-30 | 2008-07-16 | 杭州华三通信技术有限公司 | Method for controlling communication transmission path in stacked equipment domain |
| CN101483575B (en) * | 2008-01-08 | 2011-11-16 | 阿尔卡特朗讯公司 | Method for protecting a network configuration set up by a spanning tree protocol |
| CN104702537A (en) * | 2009-04-01 | 2015-06-10 | Nicira股份有限公司 | Method and apparatus for implementing and managing virtual switches |
| US10931600B2 (en) | 2009-04-01 | 2021-02-23 | Nicira, Inc. | Method and apparatus for implementing and managing virtual switches |
| US11425055B2 (en) | 2009-04-01 | 2022-08-23 | Nicira, Inc. | Method and apparatus for implementing and managing virtual switches |
| CN103026355A (en) * | 2010-03-18 | 2013-04-03 | 诺宝公司 | Database management system |
| CN103026355B (en) * | 2010-03-18 | 2016-06-08 | 诺宝公司 | Data base management system |
| CN105227424A (en) * | 2015-10-20 | 2016-01-06 | 成都广达新网科技股份有限公司 | A kind of EOC local side is by the method and system of cascade bridge virtual interface |
| CN105227424B (en) * | 2015-10-20 | 2018-05-15 | 成都广达新网科技股份有限公司 | A kind of EOC local sides are by cascading the method and system of bridge virtual interface |
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