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Network > QoS (Quality of Service)

Quality of Service refers to a resource reservation control mechanism, which guarantees a certain quality to different services on the network. Quality of service guarantees are important if the network capacity is insufficient, especially for real-time streaming multimedia applications. Quality can be defined as, for instance, a maintained level of bit rate, low latency, no packet dropping, etc.

The following are the main benefits of a QoS-aware network:

■The ability to prioritize traffic and guarantee a certain level of performance to the data flow.

■The ability to control the amount of bandwidth each application may use, and thus provide higher reliability and stability on the network.

Requirements for QoS

To utilize QoS in a network environment, the following requirements must be met:

■All network switches and routers in the network must include support for QoS.

■The network video devices used in the network must be QoS-enabled.

QoS models

CoS (the VLAN 802.1p model)

IEEE802.1p defines a QoS model at OSI Layer 2 (Data Link Layer), which is called CoS, Class of Service. It adds a 3-bit value to the VLAN MAC header, which indicates the frame priority level from 0 (lowest) to 7 (highest). The priority is set up on the network switches, which then use different queuing disciplines to forward the packets.

Below is the setting column for CoS. Enter the VLAN ID of your switch (0~4095) and choose the priority for each application (0~7).

If you assign Video the highest level, the switch will handle video packets first.

NOTENOTE:

►A VLAN Switch (802.1p) is required. The web browsing may fail if the CoS setting is incorrect.

►Class of Service technologies do not guarantee a level of service in terms of bandwidth and delivery time; they offer a "best-effort." Users can think of CoS as "coarsely-grained" traffic control and QoS as "finely-grained" traffic control.

►Although CoS is simple to manage, it lacks scalability and does not offer end-to-end guarantees since it is based on L2 protocol.

User's Manual - 87

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Vivotek FD8167-(T) user manual Network QoS Quality of Service, Requirements for QoS
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FD8167-(T) specifications

The Vivotek FD8167-(T) is a high-performance network camera designed to meet the demands of surveillance in various environments. Its sleek, compact design, combined with advanced technologies, makes it an excellent choice for both indoor and outdoor applications.

One of the standout features of the FD8167-(T) is its 2-megapixel resolution, which provides high-definition video quality. This allows for precise image capture, enabling users to identify details such as faces and license plates in recorded footage. The camera also supports H.264 and MJPEG compression formats, which minimizes bandwidth usage and storage requirements without sacrificing image quality.

Equipped with a wide-angle lens, the FD8167-(T) offers a broad field of view, which is particularly advantageous for monitoring large areas. This feature reduces the need for multiple cameras, leading to cost savings and simplified installation. Additionally, the camera supports a variety of digital pan/tilt/zoom (PTZ) functionalities, allowing users to focus on specific areas of interest during live viewing or playback.

The FD8167-(T) also incorporates Vivotek’s Smart Stream technology, which optimizes bandwidth usage by selectively streaming only the most important areas of a scene while reducing the quality of less critical areas. This feature is essential for enhancing the efficiency of network resources, especially in installations with multiple cameras.

For enhanced night surveillance, the FD8167-(T) includes IR (Infrared) illumination, which provides clear images even in total darkness. With a range of up to 30 meters, this capability ensures round-the-clock monitoring, making it suitable for various security applications.

The camera’s weather-resistant design (IP66-rated) allows it to withstand harsh environmental conditions, ensuring reliable performance in outdoor settings. It also has a built-in microSD card slot for local storage, making it flexible for use in areas where network connectivity may be unreliable.

In terms of integration, the FD8167-(T) features ONVIF compliance, making it compatible with a wide range of third-party software and hardware solutions. This interoperability allows for seamless integration into existing surveillance systems, maximizing the utility of the camera.

Overall, the Vivotek FD8167-(T) is a versatile and robust solution for modern surveillance needs, combining high-resolution imaging, advanced technologies, and durable design to deliver reliable performance across various scenarios.
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