| 摘要 |
PROBLEM TO BE SOLVED: To allow for easy check of a port connected with the video cable of a monitor camera, and to allow for check of the connection destination of the video cable by just looking at the physical tags attached to both ends of the video cable at the time of installation, even if the network is fully IP-based.SOLUTION: A video monitoring device 7 has a function for identifying a port 4 connected with the video cable 2 of a monitoring camera 1 at the distribution destination of an Ethernet frame, with reference to the VLAN ID given to its Ethernet frame, upon receiving the Ethernet frame with the VLAN ID transferred by an Ethernet switch 3. |
