CN100420219C - Method and system for realizing communication between nodes - Google Patents
Method and system for realizing communication between nodes Download PDFInfo
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- CN100420219C CN100420219C CNB2005101168072A CN200510116807A CN100420219C CN 100420219 C CN100420219 C CN 100420219C CN B2005101168072 A CNB2005101168072 A CN B2005101168072A CN 200510116807 A CN200510116807 A CN 200510116807A CN 100420219 C CN100420219 C CN 100420219C
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Abstract
The present invention discloses a method for realizing the communication of nodes, which is applied to equipment which comprises master nodes and slave nodes, wherein the number of the master nodes is at least two, and the slave nodes acquire the connection state information of the master nodes which are connected with the slave nodes; the master nodes which normally communicate with the slave nodes can be determined according to the acquired connection state information; the slave nodes and the determined master nodes establish a transmission link used for communication. The present invention also discloses a communication system used for realizing the communication of nodes, which comprises slave nodes and at least two master nodes, wherein each master node is respectively connected with all the slave nodes for the communication management of the connected slave nodes. At least one slave node of the system is used for acquiring the connection state information of the master nodes which are connected with the slave node; the master nodes which can normally communicate with the slave node is determined according to the acquired connection state communication; the slave node and the determined master nodes establish a transmission link of communication. The method and the system of the present invention obviously improve the communicating reliability between a master node and a slave node.
Description
Technical field
The present invention relates to communication network field, be specifically related to a kind of method and system of realizing inter-node communication.
Background technology
In each network element that communication network comprised of using at present, all be provided with a plurality of veneers, as: master control borad, interface board etc.Usually each veneer is considered as a communication node.In all communication nodes of a network element, the node that plays control action that can initiatively send order or message as master control borad is commonly called host node, is used for communicating management to what with its foundation data transmission link arranged from node; Controlled node according to the order that comes autonomous node or the passive answer response of message etc. as interface board is commonly called from node.
Two host nodes are arranged in the network element usually, and each host node all has physical connection with all from node, and one of them host node is called as primary host node, primary host node can with network element in all set up transmission link from node; Another host node is called as standby host node, standby host node primary host node with from node communication just often not with respectively from node communication, only lost efficacy or when unusual from the bus between the node in primary host node and all, standby host node just replace primary host node with all from node communication.
In actual applications, host node and the principle that communicates from node are as shown in Figure 1.Among Fig. 1, primary host node 110 with from node 130, from node 140, link to each other by bus a from node from node 150 etc.; Standby host node 120 with from node 130, from node 140, link to each other by bus b from node from node 150 etc.Wherein, primary host node 110 all is expressed as the cube that is filled with oblique line with standby host node 120, and this represents to select the initiative with from node communication to belong to primary host node 110 and standby host node 120.
When proper communication, that communicate by letter with host node can only set up transmission link and transmission link that use to set up is communicated by letter according to the operation logic that sets in advance and primary host node 110 from node, and can't set up transmission link with standby host node 120 and communicate by letter.When all are used for that bus a with primary host node 110 communications lost efficacy or when unusual from node, all all can switch on the standby host node 120 from node, that is: that communicate by letter with host node all sets up transmission link with standby host node 120 and transmission link that use to set up is communicated by letter from node, and no longer sets up transmission link with primary host node 110 and communicate by letter.
As seen, if with process that primary host node 110 is communicated by letter in, the port that links to each other with primary host node 110 from the node 130 breaks down, but other from node still with primary host node 110 proper communications; Just can't communicate by letter with primary host node 110 again from node 130 so, even and the port that links to each other with standby host node 120 from the node 130 is normal, also can't set up transmission link to communicate by letter with standby host node 120 with standby host node 120 from node 130, this will cause being in down state from node 130 in the situation with proper communication ability.
Clearly, the master and slave internodal communication mode of using is unfavorable for master and slave internodal proper communication at present, very easily causes being in down state from node under the situation with proper communication ability, has seriously reduced the reliability of master and slave inter-node communication.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method that realizes inter-node communication, to improve the reliability of master and slave inter-node communication.
Another object of the present invention is to provide a kind of system that realizes inter-node communication, to improve the reliability of master and slave inter-node communication.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of method that realizes inter-node communication, be applied to comprise in the system of master and slave node, and the quantity of host node is at least two that this method may further comprise the steps:
A. obtain the connection state information of the host node that links to each other with self from node, and according to the connection state information that obtains select one can with the host node of self proper communication;
B. set up for the transmission link of communicating by letter from the host node of node and selection.
Described connection state information comprises following one or more: the central processor CPU utilance of host node, host node insert the port working state that links to each other with host node from number of nodes, from the node, then among the step a, describedly from node selection host node are:
Insert one or more connection state informations the port working state that links to each other with host node from number of nodes, from node from node according to the cpu busy percentage of host node, host node, determine whether and the host node that self normally links to each other and be conducive to communicate by letter most, if have, to set up transmission link with this host node from node determination; Otherwise, from node from all host nodes that self normally links to each other one of the optional or polling host node of proper communication with it, and with the host node of selecting be defined as will with the host node of self setting up transmission link.
The connection state information that comprises is the host node cpu busy percentage, and then among the step a, described step from node selection host node is:
From node from all host nodes that self normally links to each other select the host node that cpu busy percentage is relatively low, determine the host node of this host node for being conducive to communicate by letter most, and with the host node of selecting be defined as will with the host node of self setting up transmission link.
The connection state information that comprises is that host node inserts from number of nodes, and then among the step a, described step from node selection host node is:
From node from all host nodes that self normally links to each other select an access from the relatively low host node of number of nodes, determine that this host node is the host node that helps communicating by letter most, and with the host node of selecting be defined as will with the host node of self setting up transmission link.
The connection state information that comprises is the port working state that links to each other with host node from the node, then among the step a, describedly selects the step of host node to be from node:
From node is selected self port, be in the normal host node that connects of port institute of normal operating conditions, determine the host node of this host node for being conducive to communicate by letter most, and with the host node of selection be defined as will with the host node of self setting up transmission link.
Before the step a, describedly read the host node sign of the default connection that self sets in advance from node, and will identify corresponding host node be defined as will with the host node of self setting up transmission link.
Among the step b, the described step of setting up transmission link is:
Receive request for building link from node, set up the transmission link between self and this host node from described host node; Or,
Send transmission link from node to described host node and set up and ask message for instructions, this host node receives that transmission link is set up and asks the message back for instructions and send request for building link from node, from setting up the transmission link between self and the host node after node is received request for building link.
Described system is arranged in the network element of communication network;
Described host node is the master control borad in the network element, and described is the veneer of other except that master control borad the network element from node.
The invention also discloses a kind of system that realizes inter-node communication, comprising:
From node, two or more host nodes, each host node all links to each other from node with all, is used for communicating management to what communicate by letter with host node from node;
In this system at least one is used for obtaining the connection state information of host node of linking to each other with self from node, and according to the connection state information that obtains select one can with the host node of self proper communication, and set up with the host node of selecting and to be used for the transmission link of communicating by letter.
Wherein, described connection state information comprises following one or more: the central processor CPU utilance of host node, host node insert the port working state that links to each other with host node from number of nodes, from the node,
Describedly insert one or more connection state informations the port working state that links to each other with host node from number of nodes, from node from node according to the cpu busy percentage of host node, host node, determine whether and the host node that self normally links to each other and be conducive to communicate by letter most, if have, to set up transmission link with this host node from node determination; Otherwise, from node from all host nodes that self normally links to each other one of the optional or polling host node of proper communication with it, and with the host node of selecting be defined as will with the host node of self setting up transmission link.
Described host node with from being to link to each other by bus mode between the node.
Described system further is arranged in the network element of communication network;
Described host node is the master control borad in the network element, and described is the veneer of other except that master control borad the network element from node.
Compared with prior art, method and system provided by the present invention, all can guarantee each from node relatively independent determine will with the host node of self setting up transmission link, and then set up transmission link with the corresponding host node of determining; And, follow-up from the normal course of communications of node and host node, from node still can be relatively independent obtain connection state information, and according to the connection state information that obtains redefine will with the host node of self setting up transmission link, and then set up transmission link with the corresponding host node of determining.This just guarantees can not occur in the communication process being in down state from node in the situation with proper communication ability, has therefore obviously improved the reliability of master and slave inter-node communication.
Description of drawings
Fig. 1 is the inter-node communication schematic diagram of prior art;
Fig. 2 is the inter-node communication schematic diagram of a preferred embodiment of the present invention;
Fig. 3 is the inter-node communication schematic diagram of another preferred embodiment of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments to the detailed description of the invention.
The invention provides a kind of method that realizes inter-node communication, be applied to comprise in the equipment of master and slave node, in the equipment from node all host nodes that link to each other with self, determine can with the host node of self proper communication; Set up from node and the host node determined and to be used for the transmission link of communicating by letter.
The present invention also provides a kind of system that realizes inter-node communication, comprises that each host node all links to each other from node with all from node and two or more host node, is used for communicating management to what connect from node; In this system at least one is used for obtaining the connection state information of host node of linking to each other with self from node, and according to the connection state information that obtains select one can with the host node of self proper communication, and set up with the host node of selecting and to be used for the transmission link of communicating by letter.
Referring to Fig. 2, Fig. 2 is the inter-node communication schematic diagram of a preferred embodiment of the present invention.Among Fig. 2, host node 210 with from node 230, from node 240, link to each other by bus a from node from node 250 etc.; Host node 220 with from node 230, from node 240, link to each other by bus b from node from node 250 etc.Wherein, from node 230, from node 240, all be expressed as the cube that is filled with oblique line from node 250 etc. from node, initiative that this expression is selected to communicate by letter with host node belongs to above-mentioned from node.
When carrying out inter-node communication, each can be determined relatively independently and will or communicate by letter with host node 220 with host node 210 from node, and then set up transmission link with the corresponding host node of determining.Below to describe from node 230 as example.
Particularly, from node 230 can use several different methods determine will with the host node of self setting up transmission link, as host node as described in determining according to the operation logic that sets in advance from node 230, or determine described host node according to the connection state information that obtains from node 230.
Initial when initializing each node, can by from node 230 according to the operation logic that sets in advance determine will with the host node of self setting up transmission link.Concrete operations are: read the host node sign of the default connection that self sets in advance from node 230, and will identify corresponding host node be defined as will with the primary host node of setting up transmission link from node 230.
If from node 230 according to obtain and host node between connection state information determine will with the host node of self setting up transmission link, obtain connection state information from 230 of nodes, and according to the connection state information that obtains determine will with the primary host node of self setting up transmission link.
Described connection state information is: the physical link connection status etc. that links to each other with host node from number of nodes, from the node between port working state or master and slave node that host node central processing unit (CPU) utilance, host node insert.Wherein, the port working state that links to each other with host node from the node is divided into normal operating conditions and malfunction usually; The physical link connection status is divided into chain rupture state and normal connection status usually between master and slave node.
Can use at present more common method from node 230 and obtain connection state information, as: each host node can real-time or periodically with self cpu busy percentage, insert from number of nodes and and send to from node 230 from 230 connection state informations such as physical link connection status of node; And, can also detect the connection state information such as physical link connection status between port working state and self and host node that self links to each other with host node from node 230.
After having obtained described connection state information from node 230 application said methods, from node 230 just according to the connection state information that obtains select one can with the host node of its proper communication, and with the host node of selecting be defined as will with the primary host node of setting up transmission link from node 230.Concrete operations are:
Such as: at the host node cpu busy percentage that obtains, from node 230 from host node 210 and host node 220 select the host node that cpu busy percentage is relatively low, and the host node of selecting is defined as and will uses host node with the master who sets up transmission link from node 230.
Such as: at the host node that obtains insert from number of nodes, from node 230 from host node 210 and host node 220 select an access from the relatively low host node of number of nodes, and the host node of selecting is defined as and will uses host node with the master who sets up transmission link from node 230.
Such as: at the port working state that links to each other with host node from the node that obtains, from the described port of node 230 selections, be in the host node that port connected of normal operating conditions, and the host node of selecting is defined as and will uses host node with the master who sets up transmission link from node 230.
Such as: at physical link connection status between the master and slave node that obtains, from node 230 from host node 210 and host node 220 select one with the host node that self is in normal connection status, and the host node of selection is defined as and will uses host node with the master who sets up transmission link from node 230.
The above-mentioned method of determining primary host node from node 230, just determine the part of the method for primary host node in the practical application from node 230, when practical application, described definite method can be distinguished separately use, also a plurality of methods or all Combination of Methods can be used.
If after having used above-mentioned one or more and determine the method for primary host node from node 230, still can't determine will with the primary host node that is conducive to communicate by letter most of self setting up transmission link, so from node optional from host node 210 and host node 220 or host node of polling then, and with the host node of selecting be defined as will with the primary host node of setting up transmission link from node 230.
When finally determined from node 230 will with the master who sets up transmission link from node 230 with host node after, just set up transmission link from node 230 with this host node of determining.Suppose that the primary host node of determining from node 230 is host node 210, the method of setting up transmission link from node 230 and host node 210 has multiple, as: host node 210 periodically or real-time ground to not yet with self set up transmission link respectively send request for building link from node, after receiving this request from node 230, set up the transmission link between self and the host node 210.
Certainly, can also use other method and set up described transmission link, as: from node 230 after having determined to set up transmission link with host node 210, send transmission link foundation to host node 210 and ask message for instructions, host node 210 is received after this message to sending request for building link from node 230, after receiving this request from node 230, set up the transmission link between self and the host node 210.
Follow-up from the normal course of communications of node 230 and host node 210, from node 230 still can be relatively independent as previously mentioned obtain connection state information, and the application of aforementioned correlation method according to the connection state information that obtains redefine will with the main host node of use of self setting up transmission link, and then set up transmission link with host node with definite master.Certainly, in order to guarantee the stability of inter-node communication, from node 230 can also be only according to the connection state informations relevant with communication connection such as the physical link connection status that links to each other with host node from the node between port working state or master and slave node that obtain, only judge and primary host node between can't proper communication the time, just redefine will with the primary host node of self setting up transmission link, and then set up transmission link with the primary host node of determining.
More than describe just take from node 230 as example, master and slave internodal Principle of Communication is described, other is identical from the Principle of Communication between node and host node and the above-mentioned Principle of Communication between node 230 and host node.
Have, just for comprising the situation of two host nodes in the network element at present commonly used, if comprise two above host nodes in the network element, then the inter-node communication principle as shown in Figure 3 for above said content again.Among Fig. 3, host node 310 with from node 340, from node 350, from node 360, link to each other by bus a from node from node 370 etc.; Host node 320 with from node 340, from node 350, from node 360, link to each other by bus b from node from node 370 etc.; Host node 330 with from node 340, from node 350, from node 360, link to each other by bus c from node from node 370 etc.If also have other host node, then each host node by different buses with from node 340, from node 350, from node 360, link to each other from node from node 370 etc.Wherein, from node 340, from node 350, from node 360, be the cube that is filled with oblique line from node 370 etc. from node, initiative that this expression is selected to communicate by letter with host node belongs to above-mentioned from node.
Among Fig. 3, each from node can be relatively independent determine will with the primary host node of self setting up transmission link, and then set up transmission link with the primary host node of determining.Wherein, the corresponding primary host node from the method for the primary host node of node determination and Fig. 2 among Fig. 3 determines that method is identical; Among Fig. 3 to set up the method for transmission link from node and the primary host node determined identical with the respective transmissions link establishing method Fig. 2.
And, follow-up from the normal course of communications of node and host node, from the correlation method of node described in still can application drawing 2 relatively independent obtain connection state information, and according to the connection state information that obtains redefine will with the main host node of use of self setting up transmission link, and then set up transmission link with host node with definite master.
In fact, the method for above-mentioned master and slave inter-node communication in the network element that can be applied to communication network, can also be applied in other any equipment, as long as this equipment in be provided with node with master slave relation.Have again, the master and slave node of using above-mentioned master and slave communication method between nodes in the network element that can be applied to communication network, also can be applied in any equipment, as long as the working method that the node in this equipment need to be used master and slave node is alternately.
Have again, link to each other with host node from the quantity of node except being two or more, can also be one.
Can be found out by the above, the method and system of realization inter-node communication provided by the present invention, all can guarantee each from node relatively independent determine will with the host node of self setting up transmission link, and then set up transmission link with the corresponding host node of determining.And, follow-up from the normal course of communications of node and host node, from node still can be relatively independent the node communication state that obtains, and according to the node communication state that obtains redefine will with the host node of self setting up transmission link, and then set up transmission link with the corresponding host node of determining.This just guarantees can not occur in the communication process being in down state from node in the situation with proper communication ability, and therefore the method and system of realization inter-node communication provided by the present invention has obviously improved the reliability of master and slave inter-node communication.
Claims (10)
1. a method that realizes inter-node communication is applied to comprise in the system of master and slave node, and the quantity of host node is at least two, it is characterized in that this method may further comprise the steps:
A. obtain the connection state information of the host node that links to each other with self from node, and according to the connection state information that obtains select one can with the host node of self proper communication;
Wherein, described connection state information comprises following one or more: the central processor CPU utilance of host node, host node insert the port working state that links to each other with host node from number of nodes, from the node, then among the step a, describedly from node selection host node are:
Insert one or more connection state informations the port working state that links to each other with host node from number of nodes, from node from node according to the cpu busy percentage of host node, host node, determine whether and the host node that self normally links to each other and be conducive to communicate by letter most, if have, to set up transmission link with this host node from node determination; Otherwise, from node from all host nodes that self normally links to each other one of the optional or polling host node of proper communication with it, and with the host node of selecting be defined as will with the host node of self setting up transmission link;
B. set up for the transmission link of communicating by letter from the host node of node and selection.
2. the method for claim 1 is characterized in that, the described connection state information that comprises is the host node cpu busy percentage, and then among the step a, described step from node selection host node is:
From node from all host nodes that self normally links to each other select the host node that cpu busy percentage is relatively low, determine the host node of this host node for being conducive to communicate by letter most, and with the host node of selecting be defined as will with the host node of self setting up transmission link.
3. the method for claim 1 is characterized in that, the connection state information that comprises is that host node inserts from number of nodes, and then among the step a, described step from node selection host node is:
From node from all host nodes that self normally links to each other select an access from the relatively low host node of number of nodes, determine that this host node is the host node that helps communicating by letter most, and with the host node of selecting be defined as will with the host node of self setting up transmission link.
4. the method for claim 1 is characterized in that, the connection state information that comprises is the port working state that links to each other with host node from the node, then among the step a, describedly selects the step of host node to be from node:
From node is selected self port, be in the normal host node that connects of port institute of normal operating conditions, determine the host node of this host node for being conducive to communicate by letter most, and with the host node of selection be defined as will with the host node of self setting up transmission link.
5. the method for claim 1 is characterized in that, before the step a, describedly reads the host node sign of the default connection that self sets in advance from node, and will identify corresponding host node be defined as will with the host node of self setting up transmission link.
6. the method for claim 1 is characterized in that, among the step b, the described step of setting up transmission link is:
Receive request for building link from node, set up the transmission link between self and this host node from described host node; Or,
Send transmission link from node to described host node and set up and ask message for instructions, this host node receives that transmission link is set up and asks the message back for instructions and send request for building link from node, from setting up the transmission link between self and the host node after node is received request for building link.
7. the method for claim 1 is characterized in that, described system is arranged in the network element of communication network;
Described host node is the master control borad in the network element, and described is the veneer of other except that master control borad the network element from node.
8. system that realizes inter-node communication comprises:
From node, two or more host nodes, each host node all links to each other from node with all, is used for communicating management to what communicate by letter with host node from node;
It is characterized in that, in this system at least one is used to obtain the connection state information of host node of linking to each other with self from node, and according to the connection state information that obtains select one can with the host node of self proper communication, and set up the transmission link that is used to communicate by letter with the host node of selecting;
Wherein, described connection state information comprises following one or more: the central processor CPU utilance of host node, host node insert the port working state that links to each other with host node from number of nodes, from the node,
Describedly insert one or more connection state informations the port working state that links to each other with host node from number of nodes, from node from node according to the cpu busy percentage of host node, host node, determine whether and the host node that self normally links to each other and be conducive to communicate by letter most, if have, to set up transmission link with this host node from node determination; Otherwise, from node from all host nodes that self normally links to each other one of the optional or polling host node of proper communication with it, and with the host node of selecting be defined as will with the host node of self setting up transmission link.
9. system as claimed in claim 8 is characterized in that, described host node with from being to link to each other between the node by bus mode.
10. system as claimed in claim 8 is characterized in that, described system further is arranged in the network element of communication network;
Described host node is the master control borad in the network element, and described is the veneer of other except that master control borad the network element from node.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106802832A (en) * | 2017-01-06 | 2017-06-06 | 网易（杭州）网络有限公司 | Jenkins node states management method and device |
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| CN102857315B (en) * | 2011-06-29 | 2016-09-14 | 南京中兴新软件有限责任公司 | Master clock service is from the method and system of clock |
| CN106302700B (en) * | 2016-08-11 | 2019-09-24 | 浪潮(北京)电子信息产业有限公司 | Distributed system consistent update method and system based on paxos algorithm |
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