Axis Communications 31922 manual Internet Protocol Version 6 IPv6 and Quality of Service QoS

Axis’ Motion JPEG, MPEG-4 and H.264 support / IPv6 and QoS / TECHNICAL CORNER 33

AXIS’ MOTION JPEG, MPEG-4 AND H.264 SUPPORT

Many Axis video products feature advanced real-time video encoding that can deliver Motion JPEG, MPEG-4 as well as H.264 video streams. This gives users the flexibility to maximize image quality for recording and reduce bandwidth needs for live viewing.

Axis’ MPEG-4 (MPEG-4 Part 2) follows the ISO/IEC 14496-2 standard and provides Advanced Simple Pro- file (ASP) at level 5. With a wide range of settings, it is possible to configure the streams to be optimized for both bandwidth and quality.

Axis’ H.264 (sometimes referred to as MPEG-4 Part 10/ AVC) follows the ISO/IEC14496-10 standard, and offers

further possibilities to reduce storage costs and to in- crease the overall efficiency. Without compromising image quality, an H.264 encoder can reduce the size of a digital video file by more than 80% compared with Motion JPEG and as much as 50% compared with the previous MPEG-4 Part 2 standard.

The Axis Media Control (AMC) includes both an MPEG-4 and an H.264 decoder which makes viewing of streams and integration into applications easy.

Furthermore, Axis’ multicasting support enables an un- limited number of viewers without sacrificing network system performance.

INTERNET PROTOCOL VERSION 6 (IPv6) AND QUALITY OF SERVICE (QoS)

As more and more devices are added to networks and to the Internet, IP addresses (the address that individu- ally identifies each unit) are becoming a scarce resource. To handle this, a successor to the current IP protocol version 4, has been adopted: Internet Protocol version 6 (IPv6). The main improvement brought by IPv6 is the increase in the number of addresses available for networked devices. Other important improvements are in areas such as routing and network auto-configuration. Products that support IPv6 will be well prepared for the future, as IPv6 becomes more widely used.

As different networks, such as telephone, data and video (CCTV) all continue to merge into a single IP network, it becomes more and more important to control the sharing of network resources, to fulfill the requirements of each service.

One solution is to have network equipment treat different types of services (voice, data, video) differ- ently as the traffic passes through the network. By using Quality of Service (QoS), network applications can co-exist on the same network, without consuming each other’s bandwidth. QoS makes it possible to pri- oritize traffic, thus creating a more reliable network.