Experts said that telepresence applications need to upgrade routers and switches

TelePresence is an innovative technology that connects people, locations, work, and life events through the network to provide a unique face-to-face experience. The high bandwidth of constant data packets produced by telepresence is difficult for some routers and switches to handle. This may be the final accident of a true online App. Therefore, this issue deserves an early investigation. Let's take a look at why this problem occurs and how to avoid the headaches caused by this problem in the trial phase.
Vrouters with good data communication performance may not be used for telepresence. What is the problem here? Like other aspects of the network, designers do not plan constant high-bandwidth demands such as true online applications. If the vro and vswitch lag behind the sudden increase in data communication traffic, it will have time to resume normal in the next interval. However, the network is really not intermittent, it provides a constant demand during the meeting.

The packet size of the network communication traffic is diverse. Some systems use full-size data packets for video streams, and some systems use small data packets. However, even if full-size data packets are used, the communication traffic is sometimes mixed with small data packets. Frames captured by the video system are compressed. The compressed data is immediately sent as soon as it is compressed. Some Manufacturers' systems send the compressed frame as a series of full-size data packets after small data packets to complete the transmission of the frame. Other vendors send these data packets as a group of medium-sized data packets because they use the decoder to separate the signal processor. In addition to videos, audio streams using small data packets may also contain separate video streams for data and shared demos.

Generally, vrouters use small caches and large caches. These caches are allocated to the receiving port. If the vro does not have a correctly allocated cache combination, or the new cache cannot be allocated in an uninterrupted manner, the constant requirement of the network will leave the cache pool empty. Once the cache pool is empty, incoming data will be discarded before the router recovers the cache.

Service quality is another issue for these devices. Most routers have "Fast paths" and "Slow paths ". A fast path is a hardware implementation path. Once you understand the specific communication stream sent, the hardware can exchange data packets without the intervention of the local processor. A slow path is the path used by data packets that the hardware does not know how to process. These packets will be processed by the software through the vro processor.

Some routers cannot process service quality classification and labeling on express routes. This means that the network traffic must pass through the router's processor (slow path ). This will limit the overall performance of the router and cause packet loss, if this demand exceeds the ability of the router to reliably send packets with service quality labels. Additionally, this processor is used to manage the cache allocation mentioned above. Too busy processors can cause many problems in multiple ways.

So what should we do? Experts suggest that network verification should be included for every real network application. This test should be conducted using the quality of service marking method based on the overall usage forecast on the local site. This test should verify that the appropriate bandwidth is provided, data packets are kept at the allowed low packet loss rate, and the jitter and delay standards are met. Use a combination of a combined communication traffic generation tool and a simulated network size. Remember that the Network may fail in two ways, or the network may fail to send packets at the specified speed through insufficient bandwidth. Therefore, the size of data packets is very important.

This research method requires you to call your vro or vswitch provider to ask them which products support the data packet rate, service quality, and bandwidth you need, and which products do not. The expert's experience is that this answer should involve specific products. The details are specific slots or extended devices on the backplane of the prop body equipment. Raise strict questions and get real answers to ensure that your network transmits real network communication in a consistent and high-quality manner.

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