SDH以太网专线以其低成本，带宽灵活和高质量保证等众多优点成为了市场的热点需求。
The Ethernet Over SDH Line has become a hotspot of market because of its low cost, flexible bandwidth, high quality and so on.
SDH以太网专线以其低成本，带宽灵活和高质量保证等众多优点成为了市场的热点需求。
The Ethernet Over SDH Line has become a hotspot of market because of its low cost, flexible bandwidth, high quality and so on.
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