CN1192555C - Network apparatus cluster managing method based on asynchronous transmission mode - Google Patents
Network apparatus cluster managing method based on asynchronous transmission mode Download PDFInfo
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- CN1192555C CN1192555C CNB021172064A CN02117206A CN1192555C CN 1192555 C CN1192555 C CN 1192555C CN B021172064 A CNB021172064 A CN B021172064A CN 02117206 A CN02117206 A CN 02117206A CN 1192555 C CN1192555 C CN 1192555C
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Abstract
The present invention discloses a network apparatus cluster managing method based on an asynchronous transmission mode. In the method, channels of a default permanent virtual circuit (PVC) which are used for carrying out cluster management for asynchronous transmission mode (ATM) apparatuses are arranged in the ATM apparatuses in networks, and Ethernet simulation protocols are simulated and arranged on the PVC channels to cause that Ethernet protocol stacks can be realized on the ports of the ATM apparatuses; through the protocol stacks, the exchange and the forwarding of the cluster management message of the ATM can be realized; finally, through the channels, and the exchange and the forwarding of the cluster management message of the ATM, management operation such as topology management, configuration management, state maintenance, etc. of the ATM apparatuses can be carried out. When used, the present invention breaks through the limitation of the existing cluster management method and can carry out the cluster management for apparatuses based on an ATM network by a simpler mode.
Description
Technical field
The cluster management method of equipment in the communication system of the present invention relates in particular in the communication system cluster management method based on the ATM(Asynchronous Transfer Mode) network.
Background technology
The cluster management of communication equipment is a kind of equipment control mode that adopts in the present communication network, and it is organized into a unified device clusters with a large amount of network equipments, is managed by the equipment of the better performances in the cluster equipment to whole cluster.Communication equipment is carried out cluster management, be convenient to the centralized maintenance of equipment, the address designation of cluster internal unit can not take public IP address simultaneously, therefore adopts the mode of cluster management communication equipment can save a large amount of IP addresses, and makes the network planning simpler.The double layer network that existing cluster management method requires is an Ethernet, therefore will manage ethernet device on IP network, and equipment control realizes by definition cluster management protocol on Ethernet.Because Ethernet is the network of a broadcast-type, therefore use existing method to realize very convenient based on the network device management of Ethernet.For the two-layer equipment in the atm network,,, make current communication equipment cluster management method can not be used for managing the network equipment that connects based on ATM because atm network is not the network of a broadcast-type although also there is the demand of cluster management.
Summary of the invention
The object of the present invention is to provide a kind of can be to carry out the method for cluster management based on the network equipment of ATM.
For achieving the above object, the network apparatus cluster managing method based on asynchronous transfer mode provided by the invention comprises:
(1) between the ATM(Asynchronous Transfer Mode) equipment in network, configuration is carried out acquiescence PVC (PVC) passage that cluster management uses to atm device;
(2) configuration simulation Ethernet simulation agreement on above-mentioned PVC passage makes and realize the Ethernet protocol stack on the port of atm device, utilizes this protocol stack to realize ATM is carried out the exchange and the forwarding of cluster management message;
(3) utilize above-mentioned passage and ATM carried out the exchange and the forwarding of cluster management message, atm device is carried out Topology Management, configuration management, state-maintenance operation.
The described configuration of step (2) can be simulated the agreement of Ethernet for the described bridge joint mode of configuration RFC1483 agreement (RFC:Request For Comments agreement), makes the Ethernet protocol stack of realizing on the port of atm device have following level from top to bottom from bottom to top: ATM protocol layer, ATM Adaptation Layer 5 (AAL5) protocol layer, 1483B protocol layer and data link layer (DLL) protocol layer.
The agreement that the described configuration of step (2) can be simulated Ethernet can also make the Ethernet protocol stack of realizing on the port of atm device have following level from top to bottom from bottom to top: ATM protocol layer, ATM Adaptation Layer 5 (AAL5) protocol layer, 2684B protocol layer and data link layer (DLL) protocol layer for the described bridge joint mode of configuration RFC2684 agreement.
The described realization of step (2) is carried out the exchange of cluster management message and is carried out according to following step with forwarding to ATM:
(A1), judge that this message is unicast message or broadcast or multicast message, if unicast message is changeed step (A2), if the broadcast or multicast message changes step (A3) if the data link layer of equipment receives message;
(A2) judge whether it is the message of giving this equipment, if, the upper-layer protocol routine processes of giving this equipment with this message, otherwise transmit this message by other ports beyond the message sink mouth;
(A3) the broadcast or multicast message that receives is given the upper-layer protocol routine processes of this equipment, and other all port is transmitted this message in network.
Above-mentioned steps (A1) also comprises: receive that the packet of other port or upper-layer protocol program requires to send if equipment is realized the port of Ethernet protocol stack, transmit downwards by the agreement of lower floor's simulation Ethernet.
Because between the atm device of the present invention in network, configuration is carried out the PVC passage that cluster management uses to atm device, configuration can be simulated the agreement of Ethernet on above-mentioned PVC passage, make and on the port of atm device, realize the Ethernet protocol stack, utilize this protocol stack to realize ATM is carried out the exchange and the forwarding of cluster management message, thereby realize atm device is carried out Topology Management, configuration management, bookkeepings such as state-maintenance, make the present invention break through the restriction of existing cluster management method like this, use better simply mode to carry out cluster management equipment based on atm network.
Description of drawings
Fig. 1 is the embodiment flow chart of the method for the invention;
Fig. 2 is the protocol stack structure figure that the described embodiment of Fig. 1 adopts.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
Essence of the present invention is the ethernet environment that a simulation is provided for the atm device cluster management on the ATM protocol layer, utilizes the ethernet data link layer of simulating to finish the processing of administrative message.Therefore, for application cluster Managed Solution on atm network, need solve following 2 points at least:
1, the foundation of management channels.Because original cluster management scheme is applied on the Ethernet, therefore management equipment can will be sought message by the mode of broadcasting and deliver to each member device and get on, set up necessary routing iinformation by the response of member device then, thereby can realize the automatic foundation of management channels.And atm network belongs to the network of point to point link, can't utilize the mode of broadcasting to reach this purpose;
2, simulation Ethernet.Because original cluster management scheme adopts the communication mode of Ethernet,, must on atm network, provide the ethernet environment of a simulation therefore in order to realize cluster management based on ATM.
Fig. 1 is the embodiment flow chart of the method for the invention.According to shown in Figure 1, realize that the present invention can finish by three steps.In the 1st step, between the ATM(Asynchronous Transfer Mode) equipment in network, configuration is carried out acquiescence PVC (PVC) passage that cluster management uses to atm device.Described configurating PVC passage can be realized by two simple configuration ways: the one, and identical PVC passage of all devices agreement communicates, and for example, just for cluster management a PVC passage is set when dispatching from the factory; The 2nd, in actual networking, the employed PVC passage of interim agreement between two equipment, or change the PVC passage of arranging early stage.Like this, after the PVC passage is set up, just set up the basis of a communication between two equipment.
Through top craft or configuration automatically, set up a passage that cluster management is used.But for the application cluster Managed Solution, also need on atm network, " simulation " go out an Ethernet, therefore in the 2nd step of the present invention, configuration simulation Ethernet simulation agreement on above-mentioned PVC passage, make and on the port of atm device, realize the Ethernet protocol stack, utilize this protocol stack to realize ATM is carried out the exchange and the forwarding of cluster management message, can realize each process of cluster management like this.
Above-mentioned steps 2 described configurations can be simulated the agreement of Ethernet, be the described bridge joint mode of configuration RFC1483 agreement in this example, make the Ethernet protocol stack of on the port of atm device, realizing have following level from top to bottom from bottom to top like this: ATM protocol layer, ATM Adaptation Layer 5 (AAL5) protocol layer, 1483B protocol layer and data link layer (DLL) protocol layer, with reference to figure 2.In additional embodiments of the present invention, the agreement that above-mentioned configuration can be simulated Ethernet is the described bridge joint mode of configuration RFC2684 agreement, therefore can be so that the Ethernet protocol stack of realizing on the port of atm device has following level from top to bottom from bottom to top: ATM protocol layer, ATM Adaptation Layer 5 (AAL5) protocol layer, 2684B protocol layer and data link layer (DLL) protocol layer.
Can realize ATM is carried out the exchange and the forwarding of cluster management message based on above-mentioned passage and protocol stack, to carry out the simulation that Ethernet carries out.Concrete grammar is:
1, to the processing of unicast message: if equipment is received unicast message on the ethernet data link layer of simulation, at first judge by the destination address of message whether this message is certain ethernet address of this equipment, if, then this message is exactly a message of giving this equipment, and give this equipment upper-layer protocol program with this message and handle this moment; Otherwise, transmit this message by other ports beyond the message sink mouth.
If equipment is realized the port of Ethernet protocol stack and receives that the packet of other port or upper-layer protocol program requires to send that by the agreement of lower floor's simulation Ethernet, promptly the 1483B agreement is transmitted downwards.
Described is to transmit to message sink mouth (ethernet port that comprises simulation) other ethernet port in addition by corresponding ports forwarding unicast message.In order when message is transmitted, to determine to transmit port fast, on equipment, realize management level in this example, write down the ethernet port (Ethernet that comprises simulation) of each equipment, the mode by self study for example, write down the ethernet source address of each data message, and be kept in the table with the port information that receives, like this, when needs E-Packet, search this table, and can determine the transmit port of this message according to destination address, certainly, if the corresponding port that finds out is the port that receives message, then this message is not transmitted, promptly abandon this message, transmit with the circulation of avoiding message.
If the message that the data link layer of equipment receives is the broadcast or multicast message, then the broadcast or multicast message that receives is given the upper-layer protocol routine processes of this equipment, and other all port is transmitted this message in network.
Need explanation, in this example,, therefore this message is broadcasted to all of the port as multicast message because the destination address of the data link layer of some unicast message is not the address of any equipment in the network.
In addition, after simulating Ethernet, also allow cluster management program to cooperate the processing of finishing message with the ethernet data link layer of simulation, these processing comprise:
1, Mo Ni ethernet data link layer need provide the cluster management program transmission message that transmit port is kept supplying layer.Concrete interface shape can be the function mode, promptly simulate Ethernet interface and provide a pointer that sends function or function for upper-layer protocol, can certainly adopt is other forms, for example: the ethernet data link layer of simulation provides a formation to the cluster management program on upper strata, and the cluster management program on upper strata is all put into this formation with all messages that will send.
2, some multicast address is the cluster management program special use, and does not need to transmit.Cluster management program can limit the forwarding of simulation ethernet port to these multicast messages.Concrete mode can adopt one of following dual mode:
(1), provide one to forbid function (or function pointer), notify this interface to forbid the multicast address of transmitting for cluster management program by the simulation Ethernet interface.
(2), the simulation Ethernet interface when transmitting each message, all call query function, whether need this message is transmitted with inquiry.
3, some multicast and broadcasting packet have special implication, and cluster management program can limit these message forwarding.Concrete mode can adopt one of following dual mode:
(1), provide one to forbid function (or function pointer), notify this interface to forbid the multicast of transmitting and the feature of broadcasting packet for cluster management program by the simulation Ethernet interface.
(2), the simulation Ethernet interface when transmitting each message, whether all call the query function inquiry needs this message is transmitted.
After above-mentioned two processes of process, on atm network, set up a management channels that the simulation ethernet environment can be provided, therefore on this, can use original cluster management scheme fully, thereby realize atm network equipment is carried out the purpose of cluster management based on Ethernet.Therefore in the 3rd step, bookkeepings such as Topology Management, configuration management, state-maintenance are carried out in the exchange and the forwarding that utilize above-mentioned passage and ATM is carried out the cluster management message to atm device.Above-mentioned management specifically can realize with following mode:
For Topology Management, the network equipment in the cluster obtains the information of adjacent node by the mode of multicast or broadcasting, cluster management equipment is the mode collection network facility information successively by diffusion then, promptly at first collect the network equipment information adjacent and these equipment with this management equipment self in abutting connection with record, and then according to these in abutting connection with record further collect the network equipment information of the node of far-end more reach distant-end node more in abutting connection with record; When adjacency information changes, by the equipment notice management equipment of finding to change, at this moment, the network equipment can be according to the topology information in the information updating data structure of receiving, for example, determine new topology information by calculating, or initiate the topology information collection process again.
For state-maintenance, the state of managed devices can be shaken hands by the timing between management equipment and the managed devices and be safeguarded, if it is unsuccessful repeatedly to shake hands, then management equipment can think that this network equipment is a malfunction.
For configuration management, after cluster was set up, management equipment just can communicate with the managed devices in the cluster, and the agreement by certain agreement manages the network equipment.Mode of operation, running parameter such as configure network devices; The relevant information of obtaining the network equipment is for operator's awareness network situation or the like.
When network management device manages the network equipment in the cluster, can use variety of protocol, such as, can on Ethernet, construct an agreement, be used for management equipment and follow the managed devices of cluster to carry out alternately.In addition, also can be in the agreement of communicating by letter between the managed devices in network layer, transport layer or application layer definition management equipment and the cluster.
Claims (9)
1, a kind of network apparatus cluster managing method based on asynchronous transfer mode comprises:
(1) between the asynchronous transfer mode ATM equipment in network, configuration is carried out the acquiescence PVC PVC passage that cluster management uses to atm device;
(2) configuration simulation Ethernet simulation agreement on above-mentioned PVC passage makes and realize the Ethernet protocol stack on the port of atm device, utilizes this protocol stack to realize atm device is carried out the exchange and the forwarding of cluster management message;
(3) utilize above-mentioned passage and atm device carried out the exchange and the forwarding of cluster management message, atm device is carried out Topology Management, configuration management, state-maintenance operation.
2, network apparatus cluster managing method according to claim 1, it is characterized in that: the described configuration of step (2) can be simulated the agreement of Ethernet for the described bridge joint mode of configuration RFC1483 agreement, makes the Ethernet protocol stack of realizing on the port of atm device have following level from top to bottom from bottom to top: ATM protocol layer, ATM Adaptation Layer 5 protocol layer, RFC1483 protocol layer and data link layer protocol layer.
3, network apparatus cluster managing method according to claim 1, it is characterized in that: the described configuration of step (2) can be simulated the agreement of Ethernet for the described bridge joint mode of configuration RFC2684 agreement, makes the Ethernet protocol stack of realizing on the port of atm device have following level from top to bottom from bottom to top: ATM protocol layer, ATM Adaptation Layer 5 protocol layer, RFC2684 protocol layer and data link layer protocol layer.
4, according to claim 2 or 3 described network apparatus cluster managing methods, it is characterized in that: the described realization of step (2) is carried out the exchange of cluster management message and is carried out according to following step with forwarding to atm device:
(A1), judge that this message is unicast message or broadcast or multicast message, if unicast message is changeed step (A2), if the broadcast or multicast message changes step (A3) if the data link layer of equipment receives message;
(A2) judge whether it is the message of giving this equipment, if, the upper-layer protocol routine processes of giving this equipment with this message, otherwise transmit this message by other ports beyond the message sink mouth;
(A3) the broadcast or multicast message that receives is given the upper-layer protocol routine processes of this equipment, and other all port is transmitted this message in network.
5, network apparatus cluster managing method according to claim 4, it is characterized in that: step (A1) also comprises: receive that the packet of other port or upper-layer protocol program requires to send if equipment is realized the port of Ethernet protocol stack, transmit downwards by the agreement of lower floor's simulation Ethernet.
6, network apparatus cluster managing method according to claim 4 is characterized in that described method also comprises: write down the pairing ethernet port in address of each equipment, so that determine to transmit port fast when message is transmitted.
7, network apparatus cluster managing method according to claim 1 is characterized in that described method comprises that cluster management program finishes the following processing relevant with data message with the ethernet data link layer cooperation of simulation after the step (2):
(B1) Mo Ni ethernet data link layer provides the cluster management program transmission message that transmission interface is kept supplying layer;
(B2) the restriction destination address is the message forwarding of cluster management program dedicated multicast address;
(B3) restriction has the forwarding of the multicast and the broadcasting packet of special implication.
8, network apparatus cluster managing method according to claim 7, it is characterized in that described step (B2) and step (B3) realize by following step: provide one to forbid function or function pointer by the simulation Ethernet interface, notify this interface to forbid the multicast address of transmitting for cluster management program.
9, network apparatus cluster managing method according to claim 7, it is characterized in that described step (B2) and step (B3) realize by following step: the simulation Ethernet interface is when transmitting each message, whether inquiry needs this message is transmitted, if do not need, abandon this message.
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| CNB021172064A CN1192555C (en) | 2002-04-16 | 2002-04-16 | Network apparatus cluster managing method based on asynchronous transmission mode |
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| CNB021172064A CN1192555C (en) | 2002-04-16 | 2002-04-16 | Network apparatus cluster managing method based on asynchronous transmission mode |
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| CN109510770B (en) * | 2018-12-07 | 2021-05-04 | 北京金山云网络技术有限公司 | Information synchronization method and device among load balancing nodes and processing equipment |
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Granted publication date: 20050309 Termination date: 20180416 |