VIVOTEK

Network > QoS (Quality of Service)

Advanced Mode

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 priority level, your network switch will handle video packets first.

NOTE:

►A VLAN Switch (802.1p) is required. 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.

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Vivotek PZ8111 manual Network QoS Quality of Service
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PZ8111 specifications

The Vivotek PZ8111 is a notable entry in the realm of advanced surveillance technology, designed to meet the demands of both commercial and residential security. This camera stands out for its impressive combination of features, technologies, and characteristics, making it an ideal solution for users seeking high-quality video monitoring.

One of the key features of the PZ8111 is its ability to provide high-definition video resolution. With a capability of up to 2MP, it delivers crisp, clear images that enhance both visibility and detail, which is crucial for identifying subjects in various security situations. This ultra-clear resolution is particularly beneficial for environments that require precise surveillance, such as banks, retail stores, and public spaces.

In terms of versatility, the PZ8111 comes equipped with pan and tilt functionalities. This allows for a broader coverage area, meaning fewer cameras are needed to monitor large spaces effectively. The pan range extends up to 355 degrees, while the tilt range covers 90 degrees, enabling users to adjust the camera’s view dynamically. These features ensure that no area is left uncovered, significantly enhancing the overall efficiency of the surveillance system.

The PZ8111 also incorporates advanced day/night capabilities, including infrared illumination. This technology ensures that the camera can capture high-quality footage even in low-light conditions, providing 24/7 security monitoring. The automatic switch between color and black-and-white modes is seamless, allowing for continuous observation without compromising image clarity.

Another significant aspect of the Vivotek PZ8111 is its integration with modern network infrastructure. The camera supports Power over Ethernet (PoE), which simplifies installation by allowing both power and data to be transmitted through a single cable. This feature not only reduces installation costs but also enhances system reliability.

Furthermore, the PZ8111 is equipped with intelligent video analytics features. These tools include motion detection, tampering detection, and even people counting functions. Such capabilities empower users to set specific alerts for unusual activities, ensuring prompt responses in critical situations.

Additionally, the PZ8111 supports various streaming protocols, including RTSP and ONVIF, making it a flexible choice for integration with existing security systems. This compatibility allows for easier management and integration of security hardware, ensuring users get the most out of their investment.

Overall, the Vivotek PZ8111 is a comprehensive surveillance solution that combines high-resolution imaging, versatile pan-and-tilt functionality, advanced night vision, and intelligent analytics. Its innovative features make it an exceptional choice for businesses and homeowners alike, providing peace of mind through reliable and effective security monitoring.
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