CN101296150B

CN101296150B - Method and device for implementing service intercommunication by ZESR and STP mixed networking

Info

Publication number: CN101296150B
Application number: CN200710098924XA
Authority: CN
Inventors: 张涛; 曲延锋; 张亮
Original assignee: ZTE Corp
Current assignee: XUZHOU JIULONG ELECTRONIC INDUSTRIAL CO., LTD.
Priority date: 2007-04-29
Filing date: 2007-04-29
Publication date: 2011-05-11
Anticipated expiration: 2027-04-29
Also published as: CN101296150A

Abstract

The invention discloses a method and a device for ZESR and STP hybrid networking to realize service interconnection; wherein, the method comprises the steps of: a configuration step, configuring all nodes of ZESR domains to cause the nodes to pertain to the same ZESR domain and enabling the ZESR protocol; an establishing step, enabling the STP protocol for all nodes in a ZESR and STP hybrid network and establishing ZESR protocol protection examples by utilizing the STP protocol; an abandoning step, the STP protocol abandoning the management of ZESR ports under the ZESR protocol protection examples and leaving the management to the ZESR protocol. The method and the device of the invention effectively fulfill the service interconnection in the ZESR and STP hybrid network, efficiently prevent problems happening to closed loops, therefore, radically avoiding the reduction of network performance or the paralysis of network as a result of closed loops, the invention also enlarges the application scope of ZESR networking, guarantees reliable service and stable operation and improves the quick recovery ability of ZESR under the situation of complex network topology.

Description

ZESR and STP mixed networking are realized the method and the device thereof of business intercommunication

Technical field

The present invention relates to the looped network protection technical field, particularly relate to method and device thereof that a kind of ZESR of support and STP mixed networking are realized business intercommunication and prevented loop.

Background technology

ZESR (ZTE Ethernet Smart Ring; in emerging intelligent ethernet ring network) defined a kind of ethernet ring network automatic protecting method of supporting that level is divided; its core concept is that low level is thought high-level eternal UNICOM; introduced main ring; level; segment link; notions such as boundary node; the network loop detection operations of complexity is decomposed into simply; stratification; the detection process of localization; fundamentally solved the problem that the ethernet ring network error protection under complicated ring-network topology situation is switched; avoided because fault causes that the disabled situation of network appears causing in closed loop; improved the fault-resistant ability of looped network; enlarged the networking range of application, greatly ensured professional reliable; operation stably.

The characteristics of ZESR are at first the network topology of complexity to be decomposed into the hierarchical structure of main ring and each layer section linkage, according to the role of the specified node as a result after decomposing.The main ring host node utilizes the link failure state of alert mode and sampling mode detection main ring, the switching services that responsible main ring breaks down, recovers from fault.Each layer section linkage host node utilizes alert mode and sampling pattern (cooperation of border auxiliary node) to detect the malfunction of this layer section linkage, is responsible for the switching services that this layer section linkage breaks down, recovers from fault.

All in same territory, have only a control VLAN (Virtual Local Area Network, VLAN) at all nodes under the situation of carrying out the transannular service protection, be specifically designed to the control VLAN that sends agreement thereby reduced.

The network topology of complexity is divided into main ring and each layer section linkage, introduced notions such as boundary node, border auxiliary node, boundary Control node and boundary port, with the network loop detection operations of complexity be decomposed into simply, the detection process of stratification, localization.

The fault detect of low level segment link only is operated on the link between the two border nodes of access level, and low level is thought the eternal UNICOM of high-level link.

The fault detect of layer section linkage is without main ring or high-level segmentation, but by introducing the border auxiliary node adopts echo mode (Echo Mode) in the level segmentation sampling fault detection method, but be not limited to this method (as asynchronous mode), the layer section linkage host node is to the master, send the HELLO message from port, the forwarding of this message process transmission node under the segment link normal condition, deliver to the border auxiliary node, the border auxiliary node carries out loopback to message on access interface, finally get back to the corresponding master of host node, from port, thereby judge whether layer section linkage breaks down.

Main ring or high-level fault warning message and MAC (Media Access Control, medium access control) address updating message are not transmitted to access level, and main ring or high-level change in topology do not exert an influence to low level.

The border auxiliary node detects corresponding access level generation link failure, and from " interim host node ", the port in access interface and main ring or high-level segmentation sends the MAC Address updating message, realizes professional quick protective switch.

The border auxiliary node receives the MAC Address updating message from access level, this message be transmitted in main ring or high-level segmentation, realizes professional quick protective switch.

This method is not limited to the simple monocycle and the topological structure of cross ring mutually, also is fit to other complicated topological structure, comprises star-like networking structure.

(Spanning Tree Protocol STP) is defined among the IEEE802.1D Spanning-Tree Protocol, is a kind of LMP Link Manager Protocol, and it provides path redundancy to network, prevents to produce loop simultaneously.For Ethernet is worked better, between two work stations an active path can only be arranged.Network loop multiple reason arranged, modal a kind of be to have a mind to the redundancy that generates---just in case link or switch failure, it is alternative to have another link or switch.

STP allows the intercommunication of bridge to find the network physical loop.This protocol definition a kind of algorithm, bridge can use its to create the logical topology structure of loop free (loop-free).In other words, STP has created a tree structure that is made of loop free leaf and branch, and it has crossed over whole second layer network.(Bridge Protocol Data Unit BPDU) exchanges state information separately by Bridge Protocol Data Unit between the bridge.The STP agreement is selected root switch and root node port in the network by sending bpdu information, and selects root node port and designated port for each network segment (switched segment).

Program in the bridge can determine how to use the STP agreement, this is called spanning tree algorithm, and this algorithm can be avoided the bridge loop, and guarantees that bridge can be selected a path the most effective under the multipath situation.If optimal path failure can be used this algorithm to recomputate network path and finds out next bar optimal path.Utilize spanning tree algorithm can determine network (which platform main frame is at which section), and exchange above data by bpdu information.

Shown in Fig. 1 (a), be the topological structure of a simple relatively ZESR monocycle and STP mixed networking, suppose one, in the networking except that the S5 node all ZESR node (S1, S2, S3, S4) do not enable the STP protocol function, have only S5 node and port to enable STP, all links are all normal.This moment, ZESR monocycle Master (master) node S1 blocked from the forwarding capability of port P2 service VLAN, but because S3 and S4 node do not enable STP, S3, the loop STP agreement between S4 and the S5 can not detect, and loop occurs thus, shown in Fig. 1 (b);

Suppose two, all nodes and port all enable the STP protocol function in the networking, comprise ZESR node S1～S4, and all links are all normal.The same with above-mentioned supposition one, ZESR monocycle Master (master) node S1 blocks from the forwarding capability of port P2 service VLAN, STP also can prevent loop by normally-blocking part port, but this supposition can allow ZESR and STP that the port in the networking is repeated management, cause uncontrollablely, ZESR does not have the meaning that exists yet;

Suppose three, all nodes all enable the STP protocol function in the networking, comprise ZESR node S1～S4, and the STP function of all of the port on the ZESR ring forbids that all links are all normal.The same with above-mentioned supposition one, ZESR monocycle Master (master) node S1 blocks from the forwarding capability of port P2 service VLAN, but because the port of S3 and S4 node can not pass through the STP protocol massages, S3,54 and S5 between loop STP agreement can not detect, loop occurs thus, shown in accompanying drawing 1 (b).

Loop can cause " broadcast storm ", finally causes network paralysis.

Chinese invention patent (publication number is 1905490A) has been announced " preventing the method and apparatus of loop when a kind of RRPP and partial STP network damage recovery ", and wherein RRPP (Rapid Ring ProtectionProtocol) is a rapid ring protection protocol.The interim blocking time that this patent of invention has proposed a kind of non-working port that transmission node on the faulty link is set greater than the transmission of the configuration message of STP and HELLO message at interval, and non-working port does not block the method for the configuration message of STP when being in interim blocked state, before guaranteeing that with this RRPP non-working port is decontroled, local STP has detected link-recovery by the timed sending configuration message.Though this method can be avoided loop problem in some specific monocycle networkings, it has following limitation:

At first, be that mixed networking can only be the RRPP monocycle, if phase cross ring or tangent rings can not be realized at all; And configuration is very complicated, exists RRPP and STP protocol massages alternately to manage the hidden danger of loop port break-make, the new source of trouble that easy initiation brings therefrom, and be difficult to the location;

In addition, need specific link occurs fault method just to be suitable for, the root bridge of STP also needs command configuration, can not be being calculated by the STP protocol algorithm and generate at random.

In a word, said method can not fundamentally solve the problem that RRPP ring and STP mixed networking are avoided loop, can only solve problem some edges, local.

Summary of the invention

Method and device thereof that technical problem to be solved by this invention is to provide a kind of ZESR and STP mixed networking to realize business intercommunication are used to solve because the network performance decline that closed loop causes or the problem of network paralysis appear in ZESR and STP networking.

To achieve these goals, the invention provides the method that a kind of ZESR and STP mixed networking are realized business intercommunication, it is characterized in that, comprising:

One configuration step, each node in configuration ZESR territory belongs to same ZESR territory and enables the ZESR agreement;

One foundation step enables the STP agreement and utilizes the STP agreement to create ZESR protocol protection example all nodes in ZESR and the STP mixed networking; And

One abandons step, is abandoned the management of ZESR port under the described ZESR protocol protection example and is transferred to the ZESR consultative management by the STP agreement;

MSTP territory under the configuration ZESR domain node is the step that is different from the affiliated MSTP territory of non-ZESR domain node.

Above-mentioned ZESR and STP mixed networking are realized the method for business intercommunication, and wherein, described foundation step is specially:

The VLAN at the business datum place that will move all nodes in ZESR and the STP mixed networking; utilize the STP agreement to create described ZESR protocol protection example by unified; the VLAN that interpolation is protected jointly by ZESR agreement and STP agreement, and by obstruction or the relieving of ZESR agreement by described ZESR protocol protection instance management ZESR port.

Above-mentioned ZESR and STP mixed networking are realized the method for business intercommunication, wherein, in the described foundation step, also comprise: the step that the STP agreement of all of the port on the ring in ZESR and the STP mixed networking is enabled.

Above-mentioned ZESR and STP mixed networking are realized the method for business intercommunication, and wherein, in the described foundation step, described all nodes comprise the ZESR node.

Above-mentioned ZESR and STP mixed networking are realized the method for business intercommunication, wherein, also comprise: all nodes in described ZESR territory are invented a STP node, and utilize Common Spanning Tree to realize the step of link obstructions.

Above-mentioned ZESR and STP mixed networking are realized the method for business intercommunication, wherein, described ZESR and the topological structure of STP mixed networking topological structure, the ZESR multilayer topological structure of the mixed networking netted of the topological structure of cross ring and the mixed networking of STP net or ZESR tangent rings and STP mutually that comprises the mixed networking of ZESR monocycle and STP net; Wherein the number of STP net is one or more.

To achieve these goals, the present invention also provides a kind of ZESR and STP mixed networking to realize the device of business intercommunication, it is characterized in that, comprising:

One ZESR protocol module is used for configuration and the protocol-dependent ZESR protocol parameter of ZESR;

One STP protocol module is used for configuration and the protocol-dependent STP protocol parameter of STP;

One ZESR agreement enable port initialization module, connect described ZESR protocol module, described STP protocol module, be used for determining ZESR port under the ZESR protocol protection example by described ZESR protocol module or the management of described STP protocol module, and when ZESR agreement or STP agreement enable, determine that according to the corresponding protocols state described ZESR port is by ZESR agreement or STP consultative management according to the STP protocol status of current device node and ZESR protocol status;

One ZESR port STP Failure Of Protocol module connects described ZESR agreement enable port initialization module, is used to be provided with when the ZESR agreement is under the normal condition by the STP agreement abandon management to described ZESR port; And

One ZESR port STP agreement recovery management module connects described ZESR agreement enable port initialization module, is used to be provided with when described ZESR port recover the management of STP agreement to described ZESR port during in ZESR Failure Of Protocol or deletion.

Above-mentioned ZESR and STP mixed networking are realized the device of business intercommunication, wherein, described ZESR and the topological structure of STP mixed networking topological structure, the ZESR multilayer topological structure of the mixed networking netted of the topological structure of cross ring and the mixed networking of STP net or ZESR tangent rings and STP mutually that comprises the mixed networking of ZESR monocycle and STP net; Wherein the number of STP net is one or more.

Adopt the inventive method and device to solve in ZESR and the STP mixed networking business intercommunication effectively and prevent the problem that closed loop occurs efficiently, fundamentally avoided network performance decline or the network paralysis that closed loop causes occurring owing to ZESR and STP networking; And configuration is simple, flexible, can adapt to complicated multi-level ZESR and STP networking, need not the STP agreement do specific modification; Enlarge ZESR networking range of application, ensured professional reliable, stable operation, greatly improved application potential and the fault fast restoration capabilities of ZESR under the complex network topologies situation.

Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.

Description of drawings

Fig. 1 (a) is the topological structure of simple ZESR monocycle and STP mixed networking;

The situation of loop fault appears in Fig. 1 (b) for simple ZESR monocycle and STP mixed networking;

Fig. 1 (c) is simple ZESR monocycle and STP mixed networking loop configuration situation;

Fig. 2 is the topological structure of double-deck phase cross ring of the ZESR of relative complex and STP mixed networking;

Fig. 3 is the double-deck phase cross ring of ZESR of more complicated and the topological structure of two MSTP territory mixed networking;

Fig. 4 is a method step flow chart of the present invention;

Fig. 5 is an apparatus structure schematic diagram of the present invention.

Embodiment

Below in conjunction with accompanying drawing, embodiment technical scheme of the present invention is described in further detail, but not as a limitation of the invention.

Shown in Fig. 1 (a), be the simple relatively ZESR monocycle of first embodiment and the topological structure of STP mixed networking, prevent that the method for loop from may further comprise the steps, referring to Fig. 4:

Steps A: configuration node S1～S4 is same ZESR territory and enables the ZESR agreement that S1 is Master (master) node;

Step B: all node S1～S5 enable the STP agreement, and the example at configuration service VLAN place, promptly protect example 1, comprise service VLAN 100～200;

Step C: for the port in the ZESR territory (being the ZESR port), the STP agreement is abandoned the management to ZESR port under the protection example; And

Step D: the node S1～S4 in configuration ZESR territory is MSTP territory 1, and configuration node S5 is MSTP territory 2.Wherein, MSTP (Multiple Spanning Tree Protocol) is a Multiple Spanning Tree Protocol.

Topological structure after the above-mentioned configuration of process is finished is shown in Fig. 1 (c).

Promptly all links are just often for fault-free in net, shown in Fig. 1 (c), the HELLO message of ZESR territory Master node S1 sends from master port P1, get back to from port P2 through main ring, according to the ZESR agreement, Master node S1 blocks forwarding capability from port P2, though the ZESR territory has disposed MSTP territory 1, the STP protocol massages can detection loop, but because port STP agreement under the protection example is abandoned management, the STP agreement can control port obstruction or relieving, but for the port under other protection example, STP agreement normal management; In addition, because node S5 has disposed the MSTP territory 2 that is different from ZESR territory (being MSTP territory 1), therefore, all nodes in whole ZESR territory (being MSTP territory 1) can be invented a STP node, utilize CST (Common Spanning Tree, Common Spanning Tree) obstruction of realization link, in figure, node S3 gets clogged to the link between the node S5.

When the link in ZESR territory breaks down; suppose that link S3-S4 breaks down; fault warning message is sent from S3, S4; deliver to host node S1, after host node S1 receives chain circuit alarming, the service VLAN forwarding capability of deoppilation link S1-S3; send the MAC Address updating message simultaneously; upgrade the mac address table of interdependent node on the main ring, the STP agreement can not exert an influence to the port under the protection example yet, and corresponding service is quick-recovery soon.

So both can make ZESR net and the intercommunication of STP network service, and make the function territory keep apart mutually again, get rid of fully because mixed networking causes the possibility of network loop.

As shown in Figure 2, be the double-deck phase cross ring of ZESR of relative complex of second embodiment and the topological structure of STP mixed networking, prevent that the method for loop from may further comprise the steps, referring to Fig. 4:

Steps A: configuration node S1～S6 is same ZESR territory and enables the ZESR agreement, and S1 is ZESR main ring (level a 0) Master node, and S5 is that ZESR is from ring (level 1) Master node;

Step B: all node S1～S9 enable the STP agreement, and the example at configuration service VLAN place, promptly protect example 1, comprise service VLAN 100～200;

Step C: for the port in the ZESR territory (being the ZESR port), the STP agreement is abandoned the management to ZESR port under the protection example;

Step D: the node S1～S6 in configuration ZESR territory is MSTP territory 1, and configuration node S7～S9 is MSTP territory 2.

Topological structure after the above-mentioned configuration of process is finished as shown in Figure 2.

Promptly all links are just often for fault-free in net, according to the ZESR agreement, for preventing loop Master node S1 and blocking forwarding capability from port P2 from ring Master node S5, though the ZESR territory has disposed MSTP territory 1, STP view message can detection loop, but because port STP agreement under the protection example is abandoned management, obstruction or relieving that the STP agreement can control port, but for the port under other protection example, STP agreement normal management; In addition, because node S7～S9 has disposed the MSTP territory 2 that is different from ZESR territory (being MSTP territory 1), therefore, all nodes in whole ZESR territory (being MSTP territory 1) can be invented a STP node, utilize Common Spanning Tree CST to realize the obstruction of link, in figure, node S5 gets clogged to the link between the node S7.

As shown in Figure 3, be the double-deck phase cross ring of ZESR of more complicated of the 3rd embodiment and the topological structure of two MSTP territory mixed networking, prevent that the method for loop from may further comprise the steps, referring to Fig. 4:

Step B: all node S1～S10 enable the STP agreement, and the example at configuration service VLAN place, promptly protect example 1, comprise service VLAN 100～200;

Step D: the node S1～S6 in configuration ZESR territory is MSTP territory 1, and configuration node S7～S9 is MSTP territory 2, and configuration node S10 is MSTP territory 3.

Topological structure after the above-mentioned configuration of process is finished as shown in Figure 3.

Promptly all links are just often for fault-free in net, according to the ZESR agreement, for preventing loop Master node S1 and blocking forwarding capability from port P2 from ring Master node S5, though the ZESR territory has disposed MSTP territory 1, the STP protocol massages can detection loop, but because port STP agreement under the protection example is abandoned management, obstruction or relieving that the STP agreement can control port, but for the port under other protection example, STP agreement normal management; In addition, because node S7～S9 has disposed the MSTP territory 2 that is different from ZESR territory (being MSTP territory 1), S10 has disposed the MSTP territory 3 that is different from ZESR territory (being MSTP territory 1), therefore, all nodes in whole ZESR territory (being MSTP territory 1) can be invented a STP node, utilize the obstruction of Common Spanning Tree CST realization link, in figure, node S5 gets clogged to the link between the node S7, and node S6 also gets clogged to the link between the node S10.

When the link in ZESR territory breaks down; suppose that link S3-S4 breaks down; fault warning message is sent from S3, S4; deliver to host node S1, after S1 receives chain circuit alarming, the service VLAN forwarding capability of deoppilation link S1-S3; send the MAC Address updating message simultaneously; upgrade the mac address table of interdependent node on the main ring, the STP agreement can not exert an influence to the port under the protection example yet, and corresponding service is quick-recovery soon.

So both can make ZESR net and the intercommunication of STP network service, the function territory keeps apart again mutually, gets rid of fully because mixed networking causes the possibility of network loop.

Can draw by above embodiment, though configuration has enabled the STP agreement in the ZESR territory, but the management to link is still independently carried out by the ZESR agreement, the ZESR territory can be moved in the STP territory efficiently, the response link failure makes whole network more efficient fast, even ZESR disabler of ZESR domain node or configuration deletion, the STP agreement also can avoid loop to take place by the smooth management of taking over port of the STP agreement recovery management function of ZESR port.

As shown in Figure 4, show the method flow that a kind of ZESR and STP mixed networking are realized business intercommunication and avoided loop, this flow process comprises:

Step S410: each node in configuration ZESR territory belongs to same ZESR territory, and enables the ZESR agreement;

All nodes in step S420:ZESR agreement and the STP agreement mixed networking enable the STP agreement, and the unified STP agreement of utilizing is created ZESR protocol protection example;

Step S430:STP agreement is abandoned the management to ZESR port under the described protection example;

In this step, the non-zero example of ZESR protocol protection on the port, though the STP agreement of port enables, the STP agreement is ignored automatically, abandons the management to the ZESR port;

Step S440: the MSTP territory at configuration ZESR ring place is the MSTP territory that is different from crossing or tangent STP net place, and the MSTP territory that promptly disposes the ZESR territory is to be different from the affiliated MSTP territory of non-ZESR domain node.

Comprise that for all nodes in ZESR and the STP mixed networking ZESR node enables the STP agreement; the VLAN (VLAN) at the business datum place that will move for all nodes in ZESR and the STP mixed networking; the unified STP agreement of utilizing is created the VLAN that the example interpolation will be protected, and protects (business intercommunication) jointly by ZESR agreement and STP agreement.

For the non-zero example that will protect, encircle the STP agreement that goes up all of the port in the mixed networking and enable; For the zero example that will protect, encircle the STP protocol function of going up all of the port in the mixed networking and forbid, enable under the situation at the STP of port protocol function, zero example and ZESR mutual exclusion, the inventive method can not be protected zero example.

For ZESR ring place node in the mixed networking, the non-zero example of ZESR protocol protection on the port, though the STP agreement of port enables under the situation, the STP agreement is ignored automatically, abandons the management to this protection example lower port, fully by the ZESR consultative management.

The MSTP territory that disposes ZESR ring place is the MSTP territory that is different from crossing or tangent STP net place, realizes all nodes in ZESR territory are invented a STP node, utilizes the obstruction of Common Spanning Tree CST realization link, shown in Fig. 1 (c).

As shown in Figure 5, show the device that a kind of ZESR and STP mixed networking are realized business intercommunication and avoided loop, this device mainly comprises following nucleus module: ZESR protocol module 10, STP protocol module 20, ZESR agreement enable port initialization module 30, ZESR port STP Failure Of Protocol module 40, ZESR port STP agreement recovery management module 50.

ZESR protocol module 10 is used for configuration and enables and delete the relevant Basic Configuration Items of ZESR, and mainly being needs configuration some satisfy some ZESR protocol parameters of the necessary environment of mixed networking: comprise that ZESR territory number, agreement control VLAN, srvice instance number; ZESR main equipment, ZESR slave unit; The master port of each ZESR equipment, from port, edge port; The timed sending of ZESR protocol package at interval, time-out time is provided with etc.;

STP protocol module 20, being used for configuration and enabling deletion and create the relevant Basic Configuration Items of STP such as protection example, mainly is to need configuration some satisfy some STP protocol parameters of the necessary environment of mixed networking: comprise STP territory number, create srvice instance and add the service VLAN that will protect; Whether the STP devices enable; Whether each STP device port STP agreement enables etc.;

ZESR agreement enable port initialization module 30 is used for determining that according to the STP protocol status and the ZESR protocol status of current device node the initialization port is by 10 management of ZESR protocol module, still by 20 management of STP protocol module; And ZESR agreement enable port initialization module 30 enables Shi Douhui in ZESR agreement or STP agreement and determines by STP consultative management port (needing ZESR port STP agreement recovery management module 50 to assist) still by ZESR consultative management port (needing ZESR port STP Failure Of Protocol module 40 to assist) according to the corresponding protocols state; This port refers to the ZESR port under the ZESR protocol protection example;

ZESR port STP Failure Of Protocol module 40 connects ZESR agreement enable port initialization module 30, is used to be provided with as ZESR be under the normal condition management of being abandoned by the STP agreement the ZESR port under the ZESR protocol protection example;

ZESR port STP agreement recovery management module 50; connect ZESR agreement enable port initialization module 30, be used to be provided with when the ZESR port ZESR protocol protection example under during in ZESR Failure Of Protocol or deletion recovery STP agreement to the management of the ZESR port under the ZESR protocol protection example.

ZESR and STP mixed networking method that the present invention proposes, but be not limited to the simple ZESR monocycle described in the embodiment and the multilayer mixed networking topological structure of cross ring and STP mutually, the networking structure that can also adapt to more complicated (is tangent rings etc. as the ZESR territory), comprise star-like networking structure, the inventive method has fundamentally been avoided because fault causes that the disabled situation of network appears causing in closed loop, greatly improve the fault-resistant ability of ZESR, enlarged ZESR networking range of application.

The present invention is by enabling the STP agreement to all nodes of the overall situation, but the MSTP territory of configuration ZESR domain node is different from the MSTP territory under the non-ZESR domain node, and ZESR territory all of the port in the ZESR function just often, the STP agreement is abandoned its management, though configuration enables the STP agreement in the ZESR territory, but the management to link is still independently carried out by the ZESR agreement, ZESR net and the intercommunication of STP network service so both can have been made, the function territory keeps apart again mutually, get rid of fully because mixed networking causes the possibility of network loop, solve business intercommunication in ZESR and the STP mixed networking effectively and prevented the problem that closed loop occurs efficiently, greatly improved the application potential of ZESR in complicated networking.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.

Claims

1. ZESR and STP mixed networking are realized the method for business intercommunication, wherein ZESR be in emerging intelligent ethernet ring network, STP is a Spanning-Tree Protocol, it is characterized in that, this method comprises:

2. ZESR according to claim 1 and STP mixed networking are realized the method for business intercommunication, it is characterized in that described foundation step is specially:

3. ZESR according to claim 1 and STP mixed networking are realized the method for business intercommunication, it is characterized in that, in the described foundation step, also comprise: the step that the STP agreement of all of the port on the ring in ZESR and the STP mixed networking is enabled.

4. realize the method for business intercommunication according to claim 1,2 or 3 described ZESR and STP mixed networking, it is characterized in that in the described foundation step, described all nodes comprise the ZESR node.

5. ZESR according to claim 1 and STP mixed networking are realized the method for business intercommunication, it is characterized in that, also comprise: all nodes in described ZESR territory are invented a STP node, and utilize Common Spanning Tree to realize the step of link obstructions.

6. ZESR according to claim 5 and STP mixed networking are realized the method for business intercommunication, it is characterized in that the topological structure, ZESR multilayer that described ZESR and the topological structure of STP mixed networking comprise the mixed networking of ZESR monocycle and STP net be the topological structure of the mixed networking netted of the topological structure of cross ring and the mixed networking of STP net or ZESR tangent rings and STP mutually; Wherein the number of STP net is one or more.

7. ZESR and STP mixed networking are realized the device of business intercommunication, wherein ZESR be in emerging intelligent ethernet ring network, STP is a Spanning-Tree Protocol, it is characterized in that, this device comprises:

8. ZESR according to claim 7 and STP mixed networking are realized the device of business intercommunication, it is characterized in that the topological structure, ZESR multilayer that described ZESR and the topological structure of STP mixed networking comprise the mixed networking of ZESR monocycle and STP net be the topological structure of the mixed networking netted of the topological structure of cross ring and the mixed networking of STP net or ZESR tangent rings and STP mutually; Wherein the number of STP net is one or more.