Network QoS Quality of Service | Vivotek PD8136 guide

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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 via a web console with 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. 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.

64 - User's Manual

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Vivotek PD8136 user manual Network QoS Quality of Service, Requirements for QoS

Contents

Rev Table of Contents 110 Overview Symbols and Statements in this Document Package ContentsRead Before Use Physical Description Hardware Reset Installation Hardware Installation Install MicroSD Card Mounting the Network Camera Setting up the Network Camera over the Internet Network Deployment General Connection Software Installation Network Camera Ready to Use Accessing the Network Camera Using Web Browsers Vivotek Using Rtsp Players Using 3GPP-compatible Mobile Devices MPEG-4 Using Vivotek Recording Software Main Vivotek INC. Logo Configuration Area Resize Buttons Go to Vivotek Time Client Settings MP4 Saving Options Configuration System General settings System System time General settings System Homepage layout Theme Options Custom Pattern Color Selector Vivotek System Logs Log server settingsSystem log Access log System Parameters General settings Upgrade firmware System MaintenanceGeneral settings Reboot General settings Restore Import/Export files Vivotek Vivotek Media Image Image settings Exposure Vivotek Exposure Profile Stream settings Media Video Vivotek Video quality Constant bit rate Audio Settings Media Audio Network General settings Network Type PPPoE Point-to-point over Ethernet Error Router does not support UPnP port forwarding Vivotek Enable IPv6 Http//20010c08250000020202d1fffe0465f4 Port Network Streaming protocols Http streaming Rtsp Streaming VLC Vivotek Network Ddns Express link Manual setup Ddns Dynamic domain name service CustomSafe100 Network QoS Quality of Service Requirements for QoS QoS/DSCP the DiffServ model Snmp Configuration Network Snmp Simple Network Management Protocol Root Password Security User AccountPrivilege management Account management Create and Install Certificate Method Security Https Hypertext Transfer Protocol over SSL Https Create certificate request and install Vivotek Vivotek Vivotek Vivotek Security Access List Filter Administrator IP address IP address 192.168.2.x will be blocked Security Ieee Vivotek PTZ PTZ settings Positions on the Home PTZ Calibrate Event Event settings Event Vivotek Vivotek Motion detection window Current field of view Add server Vivotek Vivotek Vivotek Add media Page Video20110320100341 Format is HH 24r Vivotek Customized Script Applications Motion detection Check Enable this profile Vivotek Check Enable camera tampering detection Applications Tampering Detection Recording Recording settings Recording Settings Continuous recording NAS server Vivotek Vivotek SD card status Local storage SD card managementSD card control Searching and Viewing the Records Local storage Content managementSearch Results Click to adjust the image size URL Commands for the Network Camera Appendix General CGI URL Syntax and Parameters Security Level Get Server Parameter Values Vivotek Set Server Parameter Values Value to assigned Assign value to the parameter groupname Vivotek Available parameters on the server System Group system Vivotek None Vivotek System.info Status Group status Network SecurityGroup network Change a service port to the port occupied by Subgroup of network ieee8021x capability.protocol.ieee8021x TLS Subgroup of network qosdscp capability.protocol.qos.dscp Subgroup of network qoscos capability.protocol.qos.cosSubgroup of network ipv6 capability.protocol.ipv6 Subgroup of network ftp Subgroup of network httpPort Subgroup of network httpsport capability.protocol.https Rtsp Subgroup of network rtsp capability.protocol.rtsp Ipfilter Subgroup of network rtpSubgroup of network pppoe capability.protocol.pppoe IPv4 address list Ip address IPv6 address list Video inputGroup videoin Video input setting per channel Exposurelevel Exposure level Svc is only supported with Stream Cmos Cmos Alternative video input profiles per channel Image setting per channel Irismode Fixed Video Iris mode for DC IrisTemporary settings for video preview Video input preview Lowlightmode Boolean Enable/disable low light mode Image setting for previewGroup imagepreviewc0~n-1for n channel products Audio input per channel Motion detection settingsGroup motionc0~n-1for n channel product PD8136-VVTK Tampering detection settings Ddns Express link UPnP presentationUPnP port forwarding Groupexpresslink System log Group syslog Camera PTZ control Snmp Group snmp capability.snmp Layout configuration Group layout Capability Group capability Vivotek Vivotek Rtsp Videooutcodec VideoincodecAudioincodec Transmissionmode Customized event script Wdrc Event setting Group eventi0~2 Path to store media Server setting for event action Group serveri0~4 Media setting for event action Group mediai0~4 mediafreespace is used internally Recording Group recordingi0~1 Null Null Https Group https capability.protocol.https Storage management setting Region of interest Capture Single Snapshot Account Management Parameter Value Description Upgrade Firmware System Logs Camera Control capability.ptzenabled Return=return Recall capability.ptzenabled Preset Locations capability.ptzenabled IP Filtering IP Filtering for Onvif Type Event/Control Http Tunnel Channel capability. evctrlchannel Get SDP of Streams Open the Network Stream Storage managements capability.storage.dbenabled Command search Parameter Value Description Command update Return Message DestPath/mnt/auto/NCMF/abc/abc.jpg/destPath Ex. Local storage status in XML format Ex. Local storage status in javascript format Command queryStatus FilePath is in queryststus return message Virtual input capability.nvi Return Parameter Value Default Description Export Files Currentlanguage ~20 Upload Files Method Post Technical Specifications Technical Specifications Technology License Notice Electromagnetic Compatibility EMC Liability