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http://dx.doi.org/10.6109/jkiice.2016.20.9.1710

A design and implementation of an in-service software upgrade technology to provide a seamless networking services  

Yoon, Ho-sun (Hyper-connected Communication Research Laboratory, Electronics and Telecommunications Research Institute)
Ryu, Ho-yong (Hyper-connected Communication Research Laboratory, Electronics and Telecommunications Research Institute)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.20, no.9, 2016 , pp. 1710-1716 More about this Journal
Abstract
In general, software upgrade technique is needed to add new features or fix bug of software on a network devices. However, the problem is that the software must be upgraded after the termination of networking service to replace new package. An ISSU(In-Service Software Upgrade) technique is used to solve such the problem. ISSU is a technology to upgrade the software without interrupting the network service or an offline network equipment. In this paper, to provide a seamless networking service, we design and implement an architecture to apply ISSU technique to a network operating system. In this paper, we use high-availability feature in N2OS which has been developed by ETRI. In addition, in order to verify that the implemented ISSU function is operation properly, we proceed to test using a test environment based on a virtual machine.
Keywords
High Availability; ISSU; Network OS; Software Upgrade; Switchover;
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