What is a backbone provider and why is it important on the Internet?

什么是主干网提供商？ 为什么它对因特网很重要？

youdao

Packet Transport Network (PTN) technology includes the Transport Multi-Protocol Label Switching (T-MPLS) and Provider Backbone Transmission (PBT).

分组传送网(PTN)技术包括传送多协议标签交换(T - MPLS)和运营商骨干传送(PBT)。

youdao

It's not a telecommunications windfall, it's a pass-through tax, '' says Mark Beshears , vice president of state and local tax for Sprint (nsye: FON - news - people ), a major backbone provider.

FORBES: Internet Taxes: Round Two

The routers will be deployed over the course of the year, and used by China Telecom's Internet Service Provider, ChinaNet , which has a backbone covering 300 cities in 31 provinces, and provides connectivity speeds of 2.5 Gbps.

FORBES: Focus On The Forbes 500s

It started as a small local phone service, but he has since expanded it to include a 25, 000-kilometer fiber backbone, a fat slice of nationwide cellular radio spectrum and an Internet access provider.

FORBES: "We're On A Collision Course"