Agenda Layer 2 VPN Motivation and Overview VPWS Reference Model VPLS Reference Model Pseudowire (PW) Signaling and PE Auto-Discovery Advanced Topics Summary
KT가 2017년까지 네트워크 혁신에 3조원을 투자하겠다는 계획을 밝혔다. 이석채 KT 회장은 11일 서울 광화문 KT 본사에서 열린 통합 KT 4주년 기자간담회에서 “기존 네트워크망 투자(CAPEX)와 별도로 3조원을 투입해 유·무선 통합 기가인터넷 시대를 열겠다”고 말했다. T는 동케이블 매각과 국사 리모델링 등을 통해 관련 재원을 조달할 방침이다. 백본망에 2조5000억원, 가입자 댁내망에 5000억원을 집행한다. 올 하반기에만 백본망과 가입자 댁내망에 각각 6200억원과 1200억원을 쓴다. 이 회장은 “시스코나 주니퍼 같은 업체의 장비를 사서 깔고 튜닝하는 기존 방식은 굉장히 비싼 네트워크”라며 “소프트웨어가 드라이브하는 표준·범용화 된 망을 구축해 스마트한 네트워크를 만들겠다”고 강조했다. KT는 구체적인 실행방안으로 △복잡한 네트워크 구조를 광케이블(FTTH) 기반 시설로 교체 △트래픽의 효과적인 관리 △소프트웨어정의네트워크(SDN)를 제시했다. ...
Agenda OAM Overview Ethernet OAM – Protocol Overview IEEE 802.3ah – Link OAM, also known as EFM IEEE 802.3ag – Connectivity Fault Management (CFM) ITU Y.1731 – Fault & Performance Management MEF E-LMI – Configuration Management Ethernet Service Activation Testing OAM Interworking Sample Fault Management Scenarios Ethernet OAM Deployment Use Cases Summary
Mobile-broadband users are demanding spontaneous access to video content, a higher-quality experience and more convergent mobile services than ever before. During the London 2012 Olympic and Paralympic Games, around 50 percent of search requests in the UK were from mobile devices. The US broadcaster NBC (National Broadcasting Company) also reported that more than 45 percent of online video streaming of the games was delivered to mobile devices (Figure 1) [1]. Subscribers like to be able to consume content anytime, anywhere. As a result, new business models are emerging in which the line between fixed and mobile is becoming indistinct. Service providers – especially over-the-top (OTT) players and content aggregators like App stores, Netflix, Amazon and so on – are making premium content available anytime, anywhere on a variety of devices. Mobile network operators (MNOs) are being challenged by the need to give consumers what they want, while preserving the economics of their networks and creating new opportunities for revenue growth.
A X2 delay of 5ms caused a loss in spectral efficiency of 20% for the investigated scheme