Packet switching slices messages (whether text, graphics, audio or video) into suitably sized blocks of data, like a series of letters in the mail.

分组交换将信息(不管是文本、图像、音频还是视频)分割成大小适当的数据块，好比邮包中的一系列信件。

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Packet network providers also benefit from supporting multi services on IP network, such as voice and video.

数据业务提供商也能从在分组网络上提供各种语音、视频和数据业务中得到回报。

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One port is used to carry content (say a video track) and the second (the RTCP port) is mainly used as a feedback mechanism to report on quality and packet loss.

一个端口是用于携带内容(比如视频轨道)，第二个主要(服务器端口)作为一种反馈机制报告质量和包丢失。

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Twonky Beam is part of Packet Video's full suite of connected home products, which includes the flagship Twonky Server software.

ENGADGET: Twonky Beam update for Android, iOS streams to Roku, Xbox 360

Next demo: Packet Video CTO Osama Alshaykh is demonstrating their Twonky Beam Browser, which lets you discover video on the Web and beam it to your TV.

FORBES: CES: Live From The AT&T Developer Summit; To Offer Data Plans For Playstation Vita; New LTE Devices; HTC, Nokia Win Phones

Cisco's newest gear is designed to effortlessly cross back and forth over those seams, innately sensing whether a digital packet is video, e-mail or an order and routing it only to the destination that can best use it.

FORBES: Technology