What best platform for video conferencing bandwidth by the media many functions?
| Added: 23-05-2010 Author: Michael Lemm Category: Video Conferencing |
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First, you need to ask and answer the following questions:
- This is the kind of content you want to use the conference system. Would it be just talking heads video, or whether you need to listen to sources other video?
- How many participants will you have?
- Do you need to talk to several areas at one time?
- Do you want a special room or mobile solutions?
- Are there any IT / network infrastructure?
- Do you have a system of conferences other? If so what?
This is the kind of questions that must be asked again during the process of designing a solution of the Conference. Codec selection answersthen car, that equipment / software selection, and the most appropriate to the needs of processing.
If the right front end of the selected product is easy to make IT integration into new or existing / network infrastructure.
Rather than considering the underlying physical topology is used, must be considered to find a network provider who can provide the features needed to support the request. It really makes no difference what physical or link layer. Providers are likely to manage the CPE anyway I'm not going to give you ndoff Ethernet for your network. What you have concerns about is the network layer and, more specifically, QoS (Quality of Service).
Support streaming media such as voice and video, there should be a QoS mechanism in the network layer that ensures latency and origin Matter. Converged networking products offered by the service today and this, usually using MPLS (Multi Protocol Label Switching) technology. This allows the client to determine which package to get preference because they would be sent throughout the network.
For example, consider a network that will provide voice or video, VPN, and Internet access. Perhaps application running on the main business VPN release. In this case, the data will be classified at the network edge to provide greater function. Packet voice and video will be catagorized as latency sensitive and Matter, VPN package will catagorized as a sensitive tone, and network traffic as best effort. This quality will be proud of your service network. The effect of all this is that your VoIP phone and video sex without any interference or other problems with your Internet connection will slow only slightly when you receive a phone call from a hook or put the needs of the VPN.
Legacy networks and QoS functions difficult to implement due to constraints of the old designs and materials (eg old broadband cable network). Network built throughout the day can provide QoS, but some designs work better than others. Always get a record of other clients using the same applications and make sure you will succeed.
Bandwidth when projecting the need for the design, remember the man. If bandwidth is available, people who use it. General trend, I ve seen is that the use of doubling every year. Of course, adding a web application can do so much faster growth.
In brief .... back all your needs and begin to back up the deployment, such as:
- How many users Concurrent
- Available bandwidth
- Types of services to deployed
- An access technology for all ages to participate.
- Required Bandwidth (with room for growth) to fill the gap.
If you only see a couple talking a little head on the data, you can drop a few hundred kbps per connection. However, if you check the medical consultation for surgical procedures in hi-def, then 20-30 Mbps or more for each connection may be required.
Furthermore, what else is happening on your network? If this is a converged network (and which eventually went the way it was), then this video is to compete with other video voice, data and who knows what else. What methods are available to manage the data on the web? Even gigabit Ethernet can drown if there is a lot of HD video streams on the web.
Finally, what level of quality claimed for the system users? When you can do so by meeting 128kbps video, the video is very poor, and all the data packet loss or errors always cause problems. If you want to TelePresence (feeling there), then the need for 1-way delay less than 250 MS, which limits the compression (the frame) selection increased bandwidth requirements.
The point is that there will be a tradeoff between capacity, quality and bandwidth requirements. After it was decided reciprocal, then you need to decide if the network your existing infrastructure can support business decision-off or if you need to run the video to support different networks. Considering that the different networks is very expensive, so you have to decide what technology is required of you to support network applications together this video.
Thus, the question is what the best foundation? Instead the question is what you want? And the answer ..... is how to do what you want to do. Everything else-128K, 512K, 20 meg, SIP, H.263, H.264, JPEG 2000, MPEG-2, and so on and so on .... all materials that can be used only flow from the solution. But they are not the solution, to decide what you need.
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