Cisco releases new-generation router products to solve video delivery problems

Cisco once again launched a new generation of router products and also applied new technologies. So I studied how Cisco developed the new VQE technology to solve the problem of IPTV Video Delivery. Here I will share it with you, I hope it will be useful to you. Cisco has announced the release of the VisualQualityExperience (VQE) technology to extend the Video Delivery Function of its next-generation Internet Protocol (ip ngn) architecture, thereby improving the quality of video service and enhancing the viewing experience. VQE allows you to quickly switch channels over networks and fix video errors. This helps carriers overcome the two major challenges of developing and delivering content in the digital cable TV and IPTV services.

StefanoNocentini, vice president of innovative engineering and service technology at Italy Telecom, said: "seamless channel switching experience is a key factor for ITPV subscribers to be satisfied. For any user surfing the network, the latency of 1-2 seconds will become unacceptable, and this delay is also an important obstacle to attract more users to watch IPTV. Cisco's expressconnect technology uses industry standards to deliver a better video experience at an effective cost ."

As a technology based on industry standards, VQE includes real-time transmission control protocol (RTCP) and real-time transmission protocol (RTP), enabling operators to detect and timely fix packet loss on degraded lines, this provides network preparation for transmission of advanced video services such as IPTV and digital video. Network-Based Fast Channel switching can enhance the watching experience of IPTV users. VQE will be initially launched as a product and will soon be integrated into the Cisco7600 series routers. The CiscoVQE quick channel switching technology works with the set-top box (STB) to detect and quickly process the change request. The product can start the video stream within 100 milliseconds after receiving the request, in this way, the change time is shortened from several seconds to less than one second. This technology supports continuous screen switching, so that the audience cannot feel the switching during the change, thus providing an obvious visual experience.

The carrier using CiscoVQE can also detect the degradation of copper lines and start corrective actions. With this technology, STB can request to re-transmit data packets and maintain the order of video queues. The network will transmit STB "queued" data packets, so as to automatically repair the error, the screen will not be interrupted. The whole error repair process was completed in less than 100 milliseconds, so the audience was not aware of it.

EveGriliches, IDC Research Manager, said: "by detecting and timely repairing data packets, VEQ provides a way to proactively overcome system network problems. It will help operators reduce maintenance costs and ensure the high-quality experience of video service subscribers ." CiscoVQE's long-term error reporting feature enables operators to troubleshoot the entire service series. By proactively diagnosing threats to successfully delivering IPTV services and repairing network errors, carriers can increase service deployment rates, reduce customer complaints, and avoid expensive on-site services ", it also prevents "loss" of users ".

MikeVolpi, Cisco's senior vice president of router and telecom carrier technology, said: "users who have grown up in the Internet age have high hopes for the next generation of video services. IPTV and digital video promise to provide many advanced features, such as personalized content services, multi-angle cameras, and interactive Web links, to provide users with a completely different viewing experience. However, at the same time, the audience still needs basic services such as high-definition images and quick change. By integrating these innovations into the network infrastructure, Cisco enables operators to economically and efficiently meet the basic needs of the audience and provide them with advanced technologies to achieve a truly shocking visual experience." VQE is one of Cisco's latest innovations announced recently. It aims to improve the quality of video servers and enhance the viewing experience, including:

Video Connection access control tool-helps ensure a high-quality viewing experience, even if a large number of video demands lead to excessive online ordering, it is no exception. As the IPTV system is widely deployed and the number of users increases significantly, excessive ordering of network services will become a common phenomenon. The video quality monitoring module-Cisco network analysis module monitors video streams in real time and actively sends alerts to operators when the image quality is degraded, so that operators can learn the root cause of the downgrade and solve the problem in a timely manner, avoid a large number of customer complaints.

Error Detection-Cisco7600 series routers support standard-based 802.1ag, 802.3ahethernet OAM, and innovative network interconnection functions. Support for ISSU is added for IP/MPLS permanent-IP/MPLS, and continuous Forwarding (NSF/SSO) is supported through stateful failover ), it can also ensure availability when the control plane fails. Cisco7600 series routers also provide MPLS Link Protection and pseudo-line redundancy for layer-3 failover.