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A port status and switch technology, applied in the field of communication, can solve problems such as low accuracy, complicated operation, and high cost, and achieve the effect of improving reliability and rationally using network resources
Active Publication Date: 2016-06-22
SHANDONG INSPUR SCI RES INST CO LTD
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Problems solved by technology
However, this patent cannot solve the problem of real-time adjustment of switch port configuration under the SDN architecture. At the same time, this patent also has disadvantages such as high cost, complicated operation, and low accuracy.
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Embodiment 1
[0042] as attached figure 1 Shown, the monitoring method of a kind of switch port status of the present invention, this method comprises the steps:
[0043] (1), the switch M transmits the updated port P information to the SDN controller in the time slot t;
[0044] (2), the SDN controller calculates the address number occupancy rate n and the flow rate occupancy rate r of the port P;
[0045] (ⅰ), within the prescribed MAC address aging time T a , the maximum number of addresses that can be bound to port P is N th , the number of bound addresses in the current time slot t is n P ;
[0046] (ii), the flow control of port P is closed by default, and the upper limit of its flow rate is R th , the traffic rate in the current time slot t is r P ;
[0047] (ⅲ), the port P is in the time slot t, and the address number occupancy rate is n=n P / N th , the traffic rate occupancy rate r=r P / R th .
[0048] (3) If port P is congested, its flow control function needs to be turn...
Embodiment 2
[0060] The monitoring method of a kind of switch port state of the present invention comprises the following steps:
[0061] (1), the switch M feeds back the updated port information to the SDN controller in the time slot t, wherein:
[0062] ①, within the specified MAC address aging time T a , the maximum number of addresses that can be bound to port P is N th , the number of bound addresses in the current time slot t is n P ;
[0063] ②, the flow control of port P is closed by default, and the upper limit of the flow rate is R th , the traffic rate in the current time slot t is r P ;
[0064] ③. To sum up, the port P is in the time slot t, and the address number occupancy rate is n=n P / N th , the traffic rate occupancy rate r=r P / R th ;
[0065] (2) The SDN controller integrates the above two states of the port P, assuming that the influencing factor of the number of bound addresses is α (0<α<1), and the influencing factor of the flow rate is β (0<β<1), then Its...
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Abstract
The invention discloses a switch port state monitoring method and belongs to the technical field of communication. The invention aims to realize real time adjustment of configuration of a switch port under SDN architecture. The technical scheme adopted by the invention is that the method includes steps of (1) a switch M transmits updated port P information to an SDN controller within a time slot t; (2) the SDN controller calculates the address number occupancy rate n and a flow rate occupancy rate r of the port P; (3) the SDN controller sets a binding address number influence factor as alpha and a flow rate influence factor as beta according to the state of the port P and calculates port P comprehensive influence factor C=alpha*n+beta*r; (4) the threshold value of the binding address number influence factor is set as alpha ba and the threshold value of the flow rate influence factor is set as beta ba according to network features in advance; (5) whether the value of the comprehensive influence factor C is greater than the threshold value of the binding address number influence factor alpha ba is judged.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to a method for monitoring the port state of a switch. Background technique [0002] With the development of OpenFlow-based software-defined networking (Software Defined Networking, SDN), network virtualization technology adopts a centralized control method, which separates the control plane and data plane of network equipment, and facilitates flexible scheduling of resources. Among them, the SDN controller performs functions such as topology management and flow control in the form of software to realize automatic management of the network; the OpenFlow switch forwards the data packets to the destination according to the instructions of the SDN controller. [0003] In order to improve the reliability of the SDN network, the port status of the switch can be monitored in real time through the SDN controller, and according to the port status of the switch, early warning analysis ...
Claims
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