CN1330123C - A method for determining master/slave agent and performing processing and response in network equipment - Google Patents
A method for determining master/slave agent and performing processing and response in network equipment Download PDFInfo
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Abstract
The present invention provides a processing and responding method for determining a master agent and a subordinate agent in network equipment, which comprises the procedures that at a network managing side, identity information of the master agent and the subordinate agent is borne into a field of self-defining bearing information in a request message, and is transmitted to a receiving end; the receiving end is used for receiving the request message transmitted from the network managing side, and determining that corresponding processing and response are carried out on the request message by the master agent and the subordinate agent according to the information borne by the corresponding field in the request message. An IP address or an MAC address do not need allocating to the network equipment of the subordinate agent by the processing and responding method, and management information banks of the master agent and the subordinate agent do not need distinguishing; the data interaction is carried out without the need of an extra communication interface; under the precondition that the original action of the field in the request message with the self-defining bearing information is not affected, the master agent and the subordinate agent can be easily and rapidly determined to process and respond the request message; therefore, the purposes of saving network resources and reducing network cost are realized.
Description
Technical field
The present invention relates to the network communications technology field, be specifically related to the method that a kind of determining master is handled and responded.
Background technology
SNMP (Simple Network Management Protocol) is a kind of industry-standard protocol that is widely accepted and comes into operation, its effect is to guarantee to transmit between any two nodes of management information in communication network, be convenient to network manager's retrieving information in any node of communication network, the configuration information of being correlated with is revised, trouble-shooting, thereby finish failure diagnosis, capacity planning and generation report wait work.
SNMP adopts polling mechanism, and basic functions collection is provided.
The basic operation of SNMP comprises GET/GET-NEXT/SET/TRAP etc., and SNMP is generally used for the communication between webmaster side and the network equipment Agent (agency).The webmaster side can be NMS (network management workstation).
Agent is a process that resides on the network equipment of being managed, and is responsible for accepting, handling the request message from NMS, obtains the numerical value of required management variable then from the network equipment other protocol modules, forms response message and sends to NMS.At some in emergency circumstances, change as the Interface status of the network equipment, access success etc., the Agent of the network equipment initiatively send the TRAP message to NMS.
Communication process between NMS and the network equipment Agent as shown in Figure 1.In Fig. 1, NMS sends various request messages to network equipment Agent, and NMS receives response message and trap (trap) message from the network equipment Agent that is managed, and display result.
When the network equipment that uses different host-host protocols between NMS and its network equipment of managing or managed is the network equipment of a plurality of far-end master slave relations of disperseing, need use Proxy (agency's the agency) technology of Agent.Set Proxy Agent (master agent), Proxied Agent (from the agency), the network equipment at ProxyAgent place is a master network device, and the network equipment at Proxied Agent place is from the network equipment.Communication process between NMS and Proxy Agent and the Proxied Agent as shown in Figure 2.In Fig. 2, NMS and Proxy Agent directly carry out communication by SNMP, and Proxy Agent and ProxiedAgent carry out communication by master network device and from the communications protocol between the network equipment.
The various request messages based on SNMP that NMS issues are at first differentiated on master agent, distinguish which request message at Proxy Agent, which request message is at Proxied Agent, if at Proxy Agent, then own this request message is handled accordingly and responded; If at Proxied Agent, then the request message based on SNMP that NMS is sent is forwarded to corresponding Proxied Agent, this request message is handled accordingly and is responded by this Proxied Agent.
Proxy Agent receives that NMS transmission comes in the prior art based on determining behind the request message of SNMP that this request message is that method at Proxy Agent or Proxied Agent has two kinds.
First method: for the master and slave network equipment of acting on behalf of the place distributes an address designation that the overall situation is unique respectively, as IP address and MAC Address, when needs obtain the information of certain network equipment, NMS is unified IP address of filling in the network equipment at master agent place in based on the request message of SNMP, and need in request message, additionally indicate this request message be to master agent or to from the agency's.Additionally indicate and by extra definition MIB (management information bank) or to specify different index values to realize.NMS transfers to master agent according to the IP address in the request message with this request message after filling request message, master agent judges that according to the information that additionally indicates in the request message whether this request message is the request message to oneself, if then master agent is handled accordingly request message and is responded.If not, then the purpose IP address in the request message is replaced to the IP address from acting on behalf of accordingly, again this request message is forwarded to accordingly from the agency, by from the agency request message being handled accordingly and being responded.
Because this method needs to distribute an IP address or the MAC Address that the overall situation is unique for each master and slave network equipment in implementation procedure, relatively waste for the IP/MAC resource of present growing tension.Though unique IP address of the overall situation or MAC Address can be replaced by distributing private network IP address, need unified planning, manage the address of each network equipment, global ip address and private network IP address need be unified at webmaster side center.This exists more drawback and inconvenience for network device management, implements also complicated.
Second method: master and slave agency defines separately independently MIB node respectively on the network equipment at its place, the MIB nodal information of self must be registered to the master agent program by the mode of registering when starting from the agency, like this for issue the request message that gets off from NMS based on SNMP, master agent can be distinguished this request message according to the nodal information of MIB and issue master agent, still issue from the agency's, if issue master agent, master agent handles accordingly request message and responds.If issue from what act on behalf of, master agent is issued request message from the agency by master network device and from the communications protocol between the network equipment, by from the agency request message being handled accordingly and being responded.
Because this method needs to be registered to master agent from the MIB nodal information of acting on behalf of its place network equipment in implementation procedure, must distinguish to some extent when each communication apparatus is carried out the MIB node definition like this, is not easy to the MIB nodal information of the unified Definition network equipment; In addition, master agent must have three Socket communication interfaces, and one is used for carrying out SNMP bag with NMS and receives and send, a register requirement that is used to monitor from the agency, another be used for from carrying out the reception and the transmission of message between acting on behalf of.The interface that master agent needs is more, and implementation procedure is numerous and diverse, difficulty is bigger.And master agent is judged that request message is issued himself or is issued from the agency, and the process complexity is not directly perceived.
Summary of the invention
The objective of the invention is to, the method that provides a kind of determining master to handle and respond, by can self-defined beared information field carrying out master/slave agency's identification in the request message, with the purpose that realizes that the simple and easy master/slave agency of determining handles and responds.
For achieving the above object, the method that a kind of determining master provided by the invention is handled and responded comprises:
A, webmaster side with the master-salve proxy identity information be carried in the request message can the field of self-defined beared information in, and be sent to receiving terminal;
B, described receiving terminal receive the described request message that the webmaster side sends over, and determine the described request message is handled accordingly and to be responded by master/slave agency according to the respective field loaded information in the described request message.
Described master-salve proxy identity information comprises master/slave agent identification information, from proxy information.
Describedly comprise from agency difference identify label, from acting on behalf of the physical port/interface of the place network equipment from proxy information.
Request message described in the said method is based on Simple Network Management Protocol.
Describedly can self-defined beared information field comprise group's file-name field.
Master/slave agent identification information in the described group file-name field, separate with separator from proxy information, group's name information.
Receiving terminal among the described step a comprises master agent.
Described step b comprises:
Master agent receives the request message of the management agreement Network Based that the webmaster side sends over and judges in the described request message that the master/slave agent identification information of group's file-name field is master agent identification information or from agent identification information;
If the master agent identification information, determine this request message is handled accordingly and to be responded by master agent;
If from agent identification information, according to determining accordingly from the agency of described group file-name field from agency's difference identification information, and the described request message transferred to accordingly from the agency by the communications protocol between the master-salve proxy, request message is handled accordingly and responded from the agency by this.
Describedly determine this request message to be handled accordingly and to respond to comprise by master agent:
The webmaster side is carried out group's name authentication and judged whether authentication is successful according to group's name information of group's file-name field in the described request message by described master agent;
If authentication success the described request message is handled accordingly and responded, and the result that will respond transfers to described webmaster side by Simple Network Management Protocol;
If authentification failure, with the message transmission of authentification failure to described webmaster side.
Described request message handled accordingly and responds from the agency by this comprise:
Be somebody's turn to do from the agency and described webmaster side carried out group's name authentication and judged whether authentication is successful according to group's name information of the group's file-name field the described request message;
If authentication success, the described request message is handled accordingly and responded, and the result that will respond transfers to master agent by the communications protocol between the master-salve proxy, and described master agent will transfer to described webmaster side by Simple Network Management Protocol from the response results that agency's transmission comes;
If authentification failure transfers to master agent with the information of authentification failure by the communications protocol between the master-salve proxy, the information of the authentification failure that described master agent will come from agency's transmission transfer to described webmaster side by Simple Network Management Protocol.
Description by technique scheme can obviously be learnt, the present invention is by can self-defined beared information field in the extended requests message, make this field except that its due effect of performance, can also carry out master/slave agency's identification, as expanding based on the group's file-name field in the request message of Simple Network Management Protocol, make in group's file-name field beared information not only still can carry out group's name authentication, can also carry out the identification of master-salve proxy.Technical scheme provided by the invention does not need to take IP address, MAC Address resource, do not need to plan again MIB nodal information, registration MIB nodal information, by the master-salve proxy identification information in group's file-name field can be simple and clear definite request message be at master agent or at from the agency's; By in group's file-name field respectively from agency distinctive mark, definite request message that can be simple and clear at which from agency; The request message that thereby NMS can be sent transfer to corresponding agency accurately, by each information in group's file-name field is separated with separator, makes each information of group's name, master-salve proxy identify label clear, easy to understand, be easy to extract; Realize conserve network resources, reduced the purpose of network equipment cost.
Description of drawings
Fig. 1 is the communication schematic diagram between NMS and the network equipment Agent;
Fig. 2 is the communication schematic diagram between NMS and Proxy Agent and the Proxied Agent;
Fig. 3 is the flow chart that determining master of the present invention is handled and responded.
Embodiment
Core of the present invention be utilize in the request message can self-defined carrying content field, be sent to receiving terminal after carrying the master-salve proxy identification information thereon, receiving terminal can directly be determined by master/slave agency this request message to be carried out respective handling and response according to the master-salve proxy identification information of carrying in the corresponding field after receiving this request message like this.
Based on core concept of the present invention, the webmaster side at first should be determined the identification information of each master-salve proxy, and the master-salve proxy identification information comprises master/slave agent identification information and from proxy information.
Master/slave agent identification information determines that request message is to be handled and responded or by handling from the agency and responding by master agent.
Can be unique determine one from the agency from proxy information, promptly which this request message handled and responded from the agency by.Comprise from agency's difference identification information, from acting on behalf of the physical port/interface message of the place network equipment from proxy information.Concrete by determining from the agency, by locating easily from acting on behalf of the detailed physical port/interface at place from physical port/interface message of acting on behalf of the place network equipment from agency difference identification information.
Master/slave agent identification information and can show with various ways from proxy information.As: can determine that for master/slave agent identification information " 1 " represent master agent, " 2 " representative from the agency, or the representative that has predetermined sign " proxy " does not have the representative master agent of predetermined sign " proxy " from the agency.For from proxy information, can adopt from agency's code index and distinguish and definite different reaching from the various physical port/interfaces of the network equipment of acting on behalf of the place from the agency.
Determine the identification information of master-salve proxy in the webmaster side after, the webmaster side also need the identification information with master-salve proxy be carried in the request message can the field of self-defined carrying content in.
For ease of the webmaster side each agency is carried out information inquiry, receives the response message that each is acted on behalf of, the present invention is applicable to Simple Network Management Protocol.
When the present invention is applicable to Simple Network Management Protocol, because the content in the group's file-name field in the request message of Simple Network Management Protocol is group's name information, be used for group's name authentication, confirm promptly whether the webmaster side has authority that the network equipment of respectively acting on behalf of the place is carried out corresponding information retrieval.Group's file-name field be can self-defined beared information field, so in can group's file-name field with the identification information carrying of master-salve proxy and request message.
For the master-salve proxy identification information that comprises in the difference group file-name field, group's name information, from proxy information, can adopt separator, realize for multiple modes such as each information distribution fixed length bytes.The present invention is a flexible Application, adopts the mode of separator to distinguish each information that comprises in group's file-name field.As the format setting with group's file-name field is " proxy@cstring@ifindex ".Wherein @ is the separator of each information, and separator also can adopt other characters.Containing of all other means: proxy represents this request message not at master agent, but need be transmitted to other from the agency; If the content of carrying in the group's file-name field in the request message has " proxy@ " character, then represent this request to from agency, master agent need be forwarded to this request message from the agency, by handling accordingly from the agency and responding, otherwise, this request is to master agent, and master agent is directly handled accordingly this request message and responded.Group's name that the webmaster side of representing Cstring disposes on master agent equipment, length are 1～32 character; Ifindex represents from agency's code index, and (double word, 32bit) integer are used to distinguish different from the agency and from the various physical port/interfaces of the network equipment of acting on behalf of the place, and the rule of concrete code index can be made by oneself as required to be defined as DWORD.
The webmaster side identification information of master-salve proxy is carried on can the field of self-defined carrying content after, request message is sent to receiving terminal, and receiving terminal is according to the master/slave agent identification information that comprises in the respective field in the request message, can determine simply accurately this request message is handled accordingly and to be responded by master/slave agency from proxy information.
Receiving terminal can be master agent, can be from the agency, also can be the third party, be a kind of more excellent method with master agent as receiving terminal.
When the webmaster side is carried on the identification information of master-salve proxy in the request message after group's file-name field, the webmaster side is sent to master agent with this request message.Master agent receives the request message of the management agreement Network Based that the transmission of webmaster side comes and judges in this request message that the master/slave agent identification information of group's file-name field is master agent identification information or from agent identification information.
If group's file-name field adopts " proxy@cstring@ifindex " form, then judge according to following mode:
If do not have " proxy@ ", expression is the master agent identification information, determines this request message to be handled accordingly and to be responded by master agent.The name information cstring of group according to group's file-name field in the request message carries out group's name authentication and judges whether authentication is successful by master agent; If authentication success the described request message is handled accordingly and responded, and the result that will respond transfers to the webmaster side by Simple Network Management Protocol; If authentification failure, with the message transmission of authentification failure to the webmaster side.
If have " proxy@ ", expression is from agent identification information, determine that from proxy information ifindex master agent transfers to request message accordingly from the agency by the communications protocol between the master-salve proxy by this request message is handled accordingly and being responded from the agency accordingly according to group's file-name field.Accordingly receive the request message that the master agent transmission comes, carry out group's name authentication and judge whether success of authentication according to the name information cstring of group of the group's file-name field in the request message from the agency; If authentication success, from the agency request message is handled accordingly and responded, and the result that will respond transfers to master agent by the communications protocol between the master-salve proxy, and master agent will transfer to the webmaster side by Simple Network Management Protocol from the response results that agency's transmission comes; If authentification failure transfers to master agent with the information of authentification failure by the communications protocol between the master-salve proxy, the information of the authentification failure that master agent will come from agency's transmission transfer to the webmaster side by Simple Network Management Protocol.
The webmaster side is transmitted all master/slave agencies information such as next authentification failure, response results and is shown.
Determining master of the present invention handle and the flow chart that responds as shown in Figure 3.The webmaster side is NMS in the present embodiment.
In Fig. 3, in step 300, NMS is carried on group's file-name field based on the request message of Simple Network Management Protocol with the identification information of master/slave agent identity, and this request message is sent to master agent.To step 310, master agent receives this request message, and obtains group's file-name field in the request message.To step 320, according to master/slave agent identification information in group's file-name field judge this request message be at master agent or at from agency, if at master agent, to step 330, NMS is authenticated according to group's name information in group's file-name field, if authentication success, to step 340, master agent is handled this request message and is responded, to step 350, master agent transfers to NMS with response results by Simple Network Management Protocol, and NMS shows response results.
In step 330, if master agent according to group's name information in group's file-name field to the NMS authentification failure, to step 360, master agent transfers to NMS with the information of authentification failure by Simple Network Management Protocol, NMS shows the information of authentification failure.
In step 320, if master agent according to master/slave agent identification information in group's file-name field determine this request message at from agency, to step 321, master agent with request message according to transferring to accordingly from the agency by master agent and from the communications protocol between the agency in group's file-name field from proxy information, to step 322, should authenticate NMS according to the group's name information group's file-name field from the agency, if authentication success, to step 324, from the agency this request message is handled accordingly and responded, and the result that will respond transfers to master agent by the host-host protocol between the master-salve proxy.To step 350, the response results of coming from agency's transmission that master agent will receive transfers to NMS by Simple Network Management Protocol, and NMS shows response results.
In step 322, if from acting on behalf of according to the group's name information group's file-name field to the NMS authentification failure, to step 323, transfer to master agent from the information of acting on behalf of authentification failure by master agent and from the communications protocol between the agency, to step 360, the information from the next authentification failure of agency's transmission that master agent will receive transfers to NMS by Simple Network Management Protocol, and NMS shows the information of authentification failure.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and do not break away from spirit of the present invention, wishes that appended claim comprises these distortion and variation.
Claims (8)
1, a kind of determining master method of handling and responding is characterized in that comprising:
A, webmaster side with the master-salve proxy identity information be carried in the request message can the field of self-defined beared information in, and be sent to receiving terminal; Described master-salve proxy identity information comprises: master/slave agent identification information, from proxy information describedly comprises from proxy information: from agency's difference identify label, from acting on behalf of the physical port/interface of the place network equipment;
B, described receiving terminal receive the described request message that the webmaster side sends over, and determine the described request message is handled accordingly and to be responded by master/slave agency according to the respective field loaded information in the described request message.
2, a kind of determining master as claimed in claim 1 method of handling and responding is characterized in that described request message is based on Simple Network Management Protocol.
3, a kind of determining master as claimed in claim 2 method of handling and responding is characterized in that describedly can self-defined beared information field comprising group's file-name field.
4, a kind of determining master as claimed in claim 3 method of handling and responding, it is characterized in that in the described group file-name field master/slave agent identification information, separate with separator from proxy information, group's name information.
5, the method for handling and responding as claim 3 or 4 described a kind of determining master is characterized in that the receiving terminal among the described step a comprises master agent.
6, a kind of determining master as claimed in claim 5 method of handling and responding is characterized in that described step b comprises:
Master agent receive that the webmaster side sends over based on the request message of Simple Network Management Protocol and judge in the described request message that the master/slave agent identification information of group's file-name field is master agent identification information or from agent identification information;
If the master agent identification information, determine this request message is handled accordingly and to be responded by master agent;
If from agent identification information, according to determining accordingly from the agency of described group file-name field from agency's difference identification information, and the described request message transferred to accordingly from the agency by the communications protocol between the master-salve proxy, request message is handled accordingly and responded from the agency by this.
7, a kind of determining master as claimed in claim 6 method of handling and responding is characterized in that describedly determining by master agent this request message to be handled accordingly and responded to comprise:
The webmaster side is carried out group's name authentication and judged whether authentication is successful according to group's name information of group's file-name field in the described request message by described master agent;
If authentication success the described request message is handled accordingly and responded, and the result that will respond transfers to described webmaster side by Simple Network Management Protocol;
If authentification failure, with the message transmission of authentification failure to described webmaster side.
8, a kind of determining master as claimed in claim 6 method of handling and responding, it is characterized in that described request message is handled accordingly and is responded from the agency by this comprise:
Be somebody's turn to do from the agency and described webmaster side carried out group's name authentication and judged whether authentication is successful according to group's name information of the group's file-name field the described request message;
If authentication success, the described request message is handled accordingly and responded, and the result that will respond transfers to master agent by the communications protocol between the master-salve proxy, and described master agent will transfer to described webmaster side by Simple Network Management Protocol from the response results that agency's transmission comes;
If authentification failure transfers to master agent with the information of authentification failure by the communications protocol between the master-salve proxy, the information of the authentification failure that described master agent will come from agency's transmission transfer to described webmaster side by Simple Network Management Protocol.
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| CNB2003101210812A CN1330123C (en) | 2003-12-24 | 2003-12-24 | A method for determining master/slave agent and performing processing and response in network equipment |
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| CNB2003101210812A CN1330123C (en) | 2003-12-24 | 2003-12-24 | A method for determining master/slave agent and performing processing and response in network equipment |
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| US6370152B1 (en) * | 1997-05-30 | 2002-04-09 | Adtran, Inc. | Distributed SNMP agent for frame relay switching network |
| CN1404260A (en) * | 2001-08-24 | 2003-03-19 | 华为技术有限公司 | Hierarchical management system for distributed network management platform |
| CN1549499A (en) * | 2003-05-07 | 2004-11-24 | 中兴通讯股份有限公司 | Proxy network management realizing method based on SNMP protocol |
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2003
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Patent Citations (4)
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| US6370152B1 (en) * | 1997-05-30 | 2002-04-09 | Adtran, Inc. | Distributed SNMP agent for frame relay switching network |
| JP2001229098A (en) * | 2000-02-17 | 2001-08-24 | Nec Eng Ltd | Network monitor system |
| CN1404260A (en) * | 2001-08-24 | 2003-03-19 | 华为技术有限公司 | Hierarchical management system for distributed network management platform |
| CN1549499A (en) * | 2003-05-07 | 2004-11-24 | 中兴通讯股份有限公司 | Proxy network management realizing method based on SNMP protocol |
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| Title |
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| SNMP主代理与子代理的通信机制 舒云星，许庆功，于国华，洛阳工业高等专科学校学报，第12卷第2期 2002 * |
| SNMP主代理与子代理的通信机制 舒云星，许庆功，于国华，洛阳工业高等专科学校学报，第12卷第2期 2002;基于SNMP的分布式网管系统 钱志坚，唐辉，顾尚杰，计算机工程，第27卷第5期 2001 * |
| 基于SNMP的分布式网管系统 钱志坚，唐辉，顾尚杰，计算机工程，第27卷第5期 2001 * |
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