• Proceedings of the IEEK Conference
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• 2000.11a
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• pp.295-298
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• 2000

본 논문은 ATM교환기에서 Non-ATM정합을 위한 미디어게이트웨이의 개발방안과 하드웨어, 소프트웨어 구조에 대해서 기술한다. 미디어게이트웨어의 하드웨어 구조는 ATM계층처리보드와 다중화처리보드 및 서비스보드들로 구분되며 Non-ATM을 서비스별로 처리할 수 있는 보드를 모듈당 최대 8매까지 실장 할 수 있다. 다중화처리보드는 ATM셀 MUX/DEMUX기능과 IPC송수신기능을 처리하고 서비스보드의 링크상태관리, 운용기능을 수행한다. 서비스보드의 종류는 프레임릴레이, 회선대행, AAL2 트렁킹, N-ISDN중계선 연동기능을 각각 수행한다.

• The Journal of the Korea institute of electronic communication sciences
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• v.16 no.1
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• pp.25-36
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• 2021

This paper presents a topology based on packet tracer and a five-step scenario model to make it easier for students to understand the network on which VLANs are applied. Virtual LAN (VLAN), developed as an alternative solution to the Routers that distribute broadcast traffic, is a virtual local area network that logically configured regardless of the physical network. The VLAN prevents the network performance degradation resulting from the broadcast traffic by dividing the broadcast domain so that the bandwidth can be used more efficiently. In addition, it enhances the security because on communication between the devices belonging to different VLANs is impossible. The five-step scenarios in this paper presented an efficient implementation case for students to understand and validate the various functions of VLANs through ping/telnet/tracert test and simulation, after setting up each step of programming switches and routers in the virtual network.