Video On-Demand (VOD) Performance | The Communication Blog

Friday, June 7, 2013

Video On-Demand (VOD) Performance

By Stephen Sulaski


Online video traffic is going to be, if not already, the dominant component of the global Internet potential customers. It had been reported a couple of months back that traffic with Netflix by itself constituted approximately 20% in the US Internet traffic. In this article, we want to discuss the performance issues with video software programs, video on-demand and also video buffering to homes in particular. Other applications like video conferencing together with video report download usually are good topics for forthcoming discussions.

YouTube and additionally Netflix movie on-demand are cases of VOD and streaming video services. This videos are generally watched on many devices like PCs/laptops, supplements, smartphones, and smart TVs (or TVs well suited for an external streaming device like Google TV or Roku). Online video streaming, not like the preferred assumption, uses the TCP/IP never the UDP/IP protocol. That suggests the video/audio pieces are sent error-free and additionally in actual sequence (means certainly no communication destruction in transit). If some may be watching some sort of 10-minute online video, the initial packets which were delivered are generally buffered to get a short period (say 31 seconds) and the playing in the video is actually delayed just by that amount.Just check out for your seo article submission .

Once this video starts playing, the residual packets in the video attach are sent continuously with the background and often will keep replenishing the screen. Thus the displaying in the video is going to be smooth after the initial pause giving the issue of virtually being within real-time. Properly, let usa say many times, assuming this network bandwidth together with quality are generally fully acceptable.

I experienced this trend myself a short while ago. I watch old Broadcast tv on Netflix quite regularly between 9 pm hours to 11 pm. I never had any user experience issues for the first six-months of this year -- perfect rendition. Lately, nevertheless, the video pauses not once but repetitions - I saw it to almost toss in the towel watching these shows. These illustrates are about 45-minutes long and the total file sizes usually are about 600 Gbytes. My World-wide-web services are currently provided as a result of Comcast via the cable modem. I generally get transfer speeds in the range with 4 Mb/s to help 10 Mb/s.Just check out for your bandwidth optimization .

Not like fiber to help you home, Internet delivered via cable 's still shared as a result of many homes in the community. The available bandwidth may well drop to the lower end of the range during the prime period or a lot of time of heavy Internet usage. There may be packet losses because of contention. The investigation as to the reasons there is so much stuttering with the video regarded as is nevertheless inconclusive and additionally needs further study.




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