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DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide
623
68.
Surveillance VLAN Commands
68-1
surveillance vlan
This command is used to enable the global surveillance VLAN state and configure the surveillance
VLAN. Use the
no
form of this command to disable the surveillance VLAN state.
surveillance vlan VLAN-ID
no surveillance vlan
Parameters
VLAN-ID
Specifies the ID of the surveillance VLAN. The range is from 2 to
4094.
Default
By default, this option is disabled.
Command Mode
Global Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
This command is used to enable the global surveillance VLAN function and to specify the surveillance
VLAN on the Switch. The Switch has only one Surveillance VLAN. This surveillance VLAN also
supports to recognize the surveillance devices, like IP Cameras (IPC) and Network Video Recorders
(NVR), using the ONVIF protocol.
Both the
surveillance vlan
command in the Global Configuration Mode and the
surveillance vlan
enable
command in the Interface Configuration Mode need to be enabled for a port to start the
surveillance VLAN function.
When surveillance VLAN is enabled for a port, the port will automatically be learned as a surveillance
VLAN untagged member. Received untagged surveillance packets will be forwarded in surveillance
VLAN. Received packets are determined as surveillance packets if the source MAC addresses of
packets comply with the OUI addresses configured by the
surveillance vlan mac-address
command.
An auto-surveillance VLAN can also be used to carry video traffic from an IP camera and its related
components like Video Management Servers (VMS), VMS clients, and video encoders. These devices
can be recognized by an OUI address and the ONVIF protocol. If the IPC is recognized by the ONVIF
protocol, the Switch will learn the IPC on a port by snooping Hello/ProbeMatch packets and then
insert the port into the surveillance VLAN. The Switch regards a host as an NVR once it connects to
the IPC via HTTP, HTTPS or RTSP. The Switch will learn the NVR on this port and insert it into the
surveillance VLAN.
If the IPC is recognized by OUI address, the Switch will determine whether a received packet is a
video packet or not by checking its IPC MAC address. If the source MAC addresses of the untagged
packets has the same MAC address as the IPC. These packets are determined as video packets and
transmitted in surveillance VLANs. If the incoming video packet is tagged, and its VLAN ID is equal to
the surveillance VLAN, the priority of the packet will be remarked with video traffic priority.
When the IPC is recognized by its OUI address and ONVIF protocol at the same time, this IPC will be
recognized by the ONVIF protocol and take action. If the resource supported ONVIF device is
depleted, the IPC will be recognized by OUI address.
The VLAN to be specified as a surveillance VLAN needs to pre-exist to use this command.
If the surveillance VLAN is configured, then the surveillance VLAN by the
vlan
command cannot be
removed.
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