VIVOTEK Vivotek Network Router ND4801 ユーザーズマニュアル

 

 

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If you want to use "HTTPS Port", please enable the HTTPs settings on the configuration page of a web console 

with a Network Camera. Refer to the camera's User Manual for details. 

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The characteristics of each protocol are shown in the following table:

UDP

UDP uses a simple transmission model without implicit hand-shaking dialogues for guaranteeing 

reliability, ordering, or data integrity. Thus, UDP provides an unreliable service and data grams may 

arrive out of order, appear duplicated, or go missing without notice. This protocol allows for almost 

real-time audio and video streams. However, network packets may be lost due to network burst 

traffic and images may be obscured. Activate UDP connection when occasions require time-sensitive 

responses and video quality is less important.

TCP

TCP provides the service of exchanging data reliably directly between two network hosts, whereas IP 

handles addressing and routing message across one or more networks. In particular, TCP provides 

reliable, ordered delivery of a stream of bytes from a program on one computer to another program 

on another computer. This protocol guarantees the delivery of streaming data and thus provides 

better video quality. The downside with this protocol is that the real-time effect is worse than that with 

UDP for a narrower bandwidth.

HTTP

HTTP is a networking protocol for distributed, collaborative, hypermedia information systems. It’s the 

foundation of data communication for the World Wide Web. This protocol allows for the same quality 

as TCP and the users need not open a specific port for streaming under some network environment.  

Users inside a firewall can utilize this protocol to allow streaming data through.

HTTPS

This protocol enables authentication and encrypted communication over SSL (Secure Socket Layer), 

which protects streaming data transmission over the Internet on higer security level.

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