CN112532410B - Rapid response method for large-scale interconnection network Trap - Google Patents
Rapid response method for large-scale interconnection network Trap Download PDFInfo
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- CN112532410B CN112532410B CN201910879822.4A CN201910879822A CN112532410B CN 112532410 B CN112532410 B CN 112532410B CN 201910879822 A CN201910879822 A CN 201910879822A CN 112532410 B CN112532410 B CN 112532410B
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000004044 response Effects 0.000 title claims abstract description 25
- 230000008859 change Effects 0.000 claims abstract description 8
- 239000000523 sample Substances 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 abstract description 5
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/12—Discovery or management of network topologies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0813—Configuration setting characterised by the conditions triggering a change of settings
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/30—Peripheral units, e.g. input or output ports
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a rapid response method of a large-scale interconnection network Trap, which comprises the following steps: the network management receives the Trap message, judges whether the node type connected with the port with changed state is a network card, if so, executes the next step, otherwise, re-probes the network; judging the port change condition, if the port is changed from available to unavailable, not responding to the Trap message, maintaining the current state unchanged, and if the port is changed from unavailable to available, continuing to execute the next step; judging whether available bit of port software is available, if yes, activating the network card to make it available, otherwise, probing network again. The invention optimizes the processing procedure of changing the state of the network card port, and starts the network probing only when the network card port is changed from unavailable to available and the available software bit of the switch port connected with the network card port is unavailable, thereby saving unnecessary network probing time and greatly improving the response speed of network management.
Description
Technical Field
The invention belongs to the technical field of high-speed interconnection networks, and particularly relates to a rapid response method for a large-scale interconnection network Trap.
Background
When the link state of the network card port changes, the switch connected with the network card port sends a Trap packet to the network management, and reports the port state change condition. After the network management receives the Trap packet, if the connection relation is changed due to the change of the port state, the topology probing is triggered to re-probe the topology structure of the network.
The number of network cards of the ultra-large scale network is huge, and can reach tens of thousands or even more than hundreds of thousands, and the number of ports of the network cards reaches hundreds of thousands. When the network card is restarted and the state of the port of the network card is changed, the connected switches send Trap packets to the network management, and a large number of Trap packets may exist in the system.
Disclosure of Invention
The invention aims to provide a rapid response method for a large-scale interconnection network Trap, which optimizes the processing process of changing the state of a network card port, so that the response speed of network management is greatly improved.
In order to achieve the above purpose, the invention adopts the following technical scheme: a rapid response method of large-scale interconnection network Trap based on judging the port state of network card and the port state of exchanger connected with network card, which makes rapid response to Trap message of network card of the node type connected with port, includes the following steps:
s1, configuring a network management module, wherein the network management module is used for exploring and finding out and recording a topological connection relation in a network, and the topological connection relation comprises a connection relation among nodes, node types and port information;
s2, when the topological connection relation in the network is changed, the switch actively transmits port information after the switch is changed to the network management module;
s3, the network management module receives the Trap message containing the port information after the switch is changed from the switch, judges whether the node type connected with the switch port with changed state is a network card or not by comparing the port information in the Trap message with the port information of the switch recorded before the network management module, if so, executes the next step, otherwise, re-probes the network;
s4, the network management module judges the change condition of the port according to the received Trap message, if the port is changed from available to unavailable, the current state is not maintained unchanged without responding to the Trap message, the port state recorded before the network management module is set to be unavailable, and if the port is changed from unavailable to available, the next step is continuously executed;
s5, the network management module judges whether the software available bit of the port is available according to the received Trap message, if so, the network management module sends a management packet enabling the port to the network card, the software available bit register of the network card is set to be 1, the network card is activated to be available, and otherwise, the network is explored again.
The technical scheme further improved in the technical scheme is as follows:
1. in the above scheme, the network probing mode includes heavy scanning, half-heavy scanning and light scanning.
2. In the above scheme, the Trap message includes a switch ID number, a number of times of transmission, and port information of the switch that transmits the Trap message.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
the method optimizes the processing procedure of changing the port state of the network card, improves the method that the port state is changed to trigger topology exploration to re-explore the topology structure of the network in the traditional method, only when the network card port is changed from unavailable to available and the available software bit of the switch port connected with the network card port is unavailable, the network exploration is started, and when the available software bit of the switch port is available, the port is made available by directly activating the operation of the network card, thereby omitting the operations of re-exploration of the network, calculation of a routing table and the like, avoiding unnecessary network exploration time and greatly improving the response speed of network management.
Drawings
FIG. 1 is a schematic flow chart of a rapid response method of a large-scale interconnection network Trap of the invention;
fig. 2 is a flow chart of a rapid response method for a large-scale interconnection network Trap of the present invention.
Detailed Description
The invention is further described below with reference to examples:
examples: a rapid response method of large-scale interconnection network Trap based on judging the port state of network card and the port state of exchanger connected with network card, which makes rapid response to Trap message of network card of the node type connected with port, includes the following steps:
s1, configuring a network management module, wherein the network management module is used for exploring and finding out and recording a topological connection relation in a network, and the topological connection relation comprises a connection relation among nodes, node types and port information;
s2, when the topological connection relation in the network is changed, the switch actively transmits port information after the switch is changed to the network management module;
s3, the network management module receives the Trap message containing the port information after the switch is changed from the switch, judges whether the node type connected with the switch port with changed state is a network card or not by comparing the port information in the Trap message with the port information of the switch recorded before the network management module, if so, executes the next step, otherwise, re-probes the network;
s4, the network management module judges the change condition of the port according to the received Trap message, if the port is changed from available to unavailable, the current state is not maintained unchanged without responding to the Trap message, the port state recorded before the network management module is set to be unavailable, and if the port is changed from unavailable to available, the next step is continuously executed;
s5, the network management module judges whether the software available bit of the port is available according to the received Trap message, if so, the network management module sends a management packet enabling the port to the network card, the software available bit register of the network card is set to be 1, the network card is activated to be available, and otherwise, the network is explored again.
The above-described ways of probing the network include heavy scanning, half heavy scanning, and light scanning.
The Trap message includes the switch ID number, the number of transmissions, and the port information of the switch that transmitted the Trap message.
Examples are further explained as follows:
the invention provides a rapid response method for a large-scale interconnection network Trap,
when the network card port is changed from available to unavailable, the Trap packet does not need to be processed in real time; when the network card port is changed from unavailable to available, as long as the software available bit of the switch port connected with the network card port is 1, the routing table of the port is still available, namely the network card port is directly activated to be immediately available, and the routing table does not need to be explored and written again, so that the response speed of network management is greatly improved.
The node type connected with the port in the Trap message can use the Trap quick response method if the node type is a network card; the node type connected with the port is a network card, and when the port state is changed from non-down to down, the response to the Trap message is not required; when the node type connected with the port is a network card, the port state is changed from down to non-down, and the available bit of port software is 1, the network card is directly activated.
The complete Trap quick response implementation method of the invention is shown in figure 1.
Step 1: the network management receives the Trap message and judges the node type connected with the port with changed state.
Step 2: if the port is not connected with the network card, the severe scanning is triggered.
Step 3: if the port is connected with the network card, the change condition of the port is judged.
Step 4: if the port changes from non-down to down then the response Trap message is not required.
Step 5: if the port changes from down to non-down, the port's software available bit is determined.
Step 6: if the software available bit is not available, a severe scan is triggered.
Step 7: if the software availability bit is available, the network card is directly activated to be available.
The method optimizes the processing procedure of changing the port state of the network card, improves the method that the port state is changed to trigger topology exploration to re-explore the topology structure of the network in the traditional method, only when the network card port is changed from unavailable to available and the available software bit of the switch port connected with the network card port is unavailable, the network exploration is started, and when the available software bit of the switch port is available, the port is made available by directly activating the operation of the network card, thereby omitting the operations of re-exploration of the network, calculation of a routing table and the like, avoiding unnecessary network exploration time and greatly improving the response speed of network management.
In order to facilitate a better understanding of the present invention, the terms used herein will be briefly explained below:
trap message: when the port state of the switch is changed, the switch actively sends a notification message to the network management, wherein the notification message comprises the port number and the port state change condition.
Switch port software available bit: the available bit is 1, which indicates that the switch has configured the routing table and can be used; otherwise, the switch is not available.
Activating a network card port: activating a network card port indicates that the network card enters a software usable state.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (3)
1. A rapid response method for a large-scale interconnection network Trap is characterized in that: based on the judgment of the port state of the network card and the port state of the switch connected with the network card, the fast response is made for the trap message of which the node type of the port connection is the network card, and the method comprises the following steps:
s1, configuring a network management module, wherein the network management module is used for exploring and finding out and recording a topological connection relation in a network, and the topological connection relation comprises a connection relation among nodes, node types and port information;
s2, when the topological connection relation in the network is changed, the switch actively transmits port information after the switch is changed to the network management module;
s3, the network management module receives the Trap message containing the port information after the switch is changed from the switch, judges whether the node type connected with the switch port with changed state is a network card or not by comparing the port information in the Trap message with the port information of the switch recorded before the network management module, if so, executes the next step, otherwise, re-probes the network;
s4, the network management module judges the change condition of the port according to the received Trap message, if the port is changed from available to unavailable, the current state is not maintained unchanged without responding to the Trap message, the port state recorded before the network management module is set to be unavailable, and if the port is changed from unavailable to available, the next step is continuously executed;
s5, the network management module judges whether the software available bit of the port is available according to the received Trap message, if so, the network management module sends a management packet enabling the port to the network card, the software available bit register of the network card is set to be 1, the network card is activated to be available, and otherwise, the network is explored again.
2. The rapid response method for large-scale interconnection network Trap according to claim 1, wherein: the ways of probing the network include heavy scan, half heavy scan and light scan.
3. The rapid response method for large-scale interconnection network Trap according to claim 1, wherein: the Trap message includes the switch ID number, the number of times of transmission and the port information of the switch for transmitting the Trap message.
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