Vicon I-Onyx MP-955DN Dokumentacja Strona 12

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XX112-36-00 Rev 909 Kollector Hybrid Network Digital Video Recorder Introducing ViconNet 3
Frequently Asked Questions
The following set of questions and answers have been created to help customers get the most out of the
potential of ViconNet. Each question is a real-life situation answered by Vicon’s outstanding technical support
group.
What parameters should be considered when calculating storage and bandwidth?
The ViconNet devices, much like other IP-based video systems, send the video over the network to a NVR or
store it on DVR drives. This data is influenced by a few major parameters:
Compression method – What compression is being used? ViconNet Normal/Full, M-JPEG, MPEG-4,
H.264 are options with ViconNet or with 3
rd
party cameras.
Frame rate – More frames per second will require more bandwidth and more storage.
Picture resolution – The picture resolution (CIF to 4 CIF and Megapixel range) has significant
influence on the storage, higher resolution = more storage.
Motion type – Unless you are using M-JPEG, the amount of motion in the picture will affect the
amount of data.
Make sure to obtain the storage calculator for ViconNet or the 3
rd
party camera you are using, and calculate
the different types of cameras separately. When calculating bandwidth, estimate the “worse-case” to ensure
your network can carry the traffic.
What are the options for storage?
When using a DVR or an NVR, ViconNet offers several storage options:
Internal storage – Hard drives in the DVR or the NVR.
Internal RAID – Hard drives in the DVR (Kollector Force) or NVR (VN-NVR Shadow) configured in a
RAID 5 array.
External RAID – Using SCSI card in the DVR/NVR, an external RAID unit can be attached and
provide more storage and RAID protection.
NAS – Although ViconNet can send video to a mapped drive (NAS) on the network, we recommend
that this will not be used as the main storage method; it utilizes network resources and therefore
Vicon can not estimate their performance.
SAN – Vicon offers SAN solutions (iSCSI) for the DVR/NVR, utilizing a dedicated storage network
and large storage arrays.
Does ViconNet require specific ports to be open in the firewall?
Yes, ViconNet uses ports 4354 – 4359 both in TCP and UDP. These ports will be automatically open
when ViconNet is installed.
What network protocols does ViconNet use and support?
ViconNet devices use TCP Unicast protocol to communicate and send video. ViconNet does support
Multicast-based video from several cameras, including its I-Onyx cameras. The support of Multicast
depends on the camera.
Does ViconNet support video analytics?
Yes, ViconNet VI is Vicon’s video analytics solution. When ViconNet VI is installed, you can configure
ViconNet to receive alarms and indications of the analytics detections.
Is there a limitation to the number of cameras ViconNet can handle?
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