D-Link DGS-1250 Emulator - Page 472

Surveillance VLAN Commands

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DGS-1250 Series Gigabit Ethernet Smart Managed Switch CLI Reference Guide 60. Surveillance VLAN Commands 60-1 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. Usage Guideline Use this command 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 move it into the surveillance VLAN until the triggered aging mechanism age-out or the LAN cable is removed. When the host sends an ARP request to an IPC, the Switch still regards the host as an NVR but only temporarily move it into the surveillance VLAN. The host will automatically be moved out of the surveillance VLAN after about 30 seconds if it is not recognized as an NVR anymore. NOTE: The same PC, or PCs connected to the same LAN port on the Switch, cannot simultaneously manage the Switch and the IP cameras connected to the Switch. 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. 469

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DGS-1250 Series Gigabit Ethernet Smart Managed Switch CLI Reference Guide
469
60.
Surveillance VLAN Commands
60-1
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.
Usage Guideline
Use this command 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 move it into the surveillance VLAN until the triggered aging mechanism age-out or
the LAN cable is removed.
When the host sends an ARP request to an IPC, the Switch still regards the host as an NVR but only temporarily
move it into the surveillance VLAN. The host will automatically be moved out of the surveillance VLAN after about
30 seconds if it is not recognized as an NVR anymore.
NOTE:
The same PC, or PCs connected to the same LAN port on the Switch, cannot
simultaneously manage the Switch and the IP cameras connected to the Switch.
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.