Unavailability-Aware Shared Virtual Backup Allocation for Middleboxes: A Queueing Approach

He, Fujun; Oki, Eiji

doi:10.1109/tnsm.2020.3026218

Cited by 19 publications

(2 citation statements)

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“…The method determines the state of the client class (11), conditions for client activation, organizes the client's exit from the queue. Unlike known solutions for queue management [20,21,24], the method involves not only management but also preliminary transformation of classes.…”

Section: Discussion Of Results Of Investigating the Mechanism Of Inte...mentioning

confidence: 99%

“…The authors of work [24] proposed an approach to resource sharing using the example of virtualization of network functions and a shared protection mechanism, which allows several functions to share backup resources. However, the paper did not sufficiently consider the potential risks and limitations of the proposed approach, as well as ways to minimize or overcome them.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

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Implementation of class interaction under aggregation conditions

Kungurtsev,

Komleva

2024

EEJET

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The object of research is the implementation of relations between software classes. It is shown that when implementing the aggregation relationship between classes, errors may occur if more than one client class is found. Class interaction errors can be caused by management of resource class attributes by one of the client classes in a way that is unacceptable to another client class due to invalid attribute values, state changes, method blocking, etc. To solve the problem, a special organization of the queue for client classes is proposed. A feature of the queue is the use of models of client classes and resource class. The model of a resource class provides an idea about its resources (attributes and methods) and how they are used. The client class model shows how much of these resources will be used by the client and how this will be done. This organization of the queue makes it possible to provide resources to the next client class only after checking its compatibility with active client classes. In general, client classes have different types, and this complicates the organization of the queue. Therefore, it is proposed to make them derived from the base class, which defines the interface for the queue. Similarly, the problem of the interaction of the class-resource with the queue is solved. The proposed base class for the resource class also provides the necessary queue interface. Software was developed that automates the process of converting classes: analysis of a resource class, determination of resource needs from client classes, construction of base classes. After the conversion is completed, the queue functions are supported. The study results verification showed a reduction in the time for converting classes by about three times, and the waiting time for access to resources during the work of the queue – at least two times

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