Summary
International Conference on Emerging Technologies for Communications
2020
Session Number:D2
Session:
Number:D2-3
A repetitive network switching scheme without packet forwarding interruption for achieving a metabolic network
Kosei YODA, Yu TAMURA, Yuta MIYAOKA, Junichi MURAYAMA,
pp.-
Publication Date:2020/12/2
Online ISSN:2188-5079
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Summary:
Future cyber attacks may target networks and tamper their packet forwarding routes using malware programs. Such attacks would cause phishing scams frequently. As a countermeasure against such attacks, we have been studying metabolic network architecture. In this architecture, the in-use virtual network is replaced with the initialized virtual network periodically. By means of this procedure, even undetectable malware programs would be removed from the physical network. Consequently, the whole network can be maintained always clean. When the conventional switching scheme is applied to this architecture, every edge router of the in-use network is simultaneously switched to the corresponded router of the initialized network. However, in this scheme, some transit packets are remained within the disconnected network. They would be finally discarded. In order to solve this problem, this paper proposes a novel network switching scheme. In this scheme, in the first stage, only the ingress function of every edge router is switched exclusively. For a while, that egress function is multi-homed to both the in-use and the initialized networks. As the result, virtual networks can be switched without packet loss.