What is a SPAN port?
A SPAN port (sometimes called a mirror port) is a software feature built into a switch or router that creates a copy of selected packets passing through the device and sends them to a designated SPAN port. Using software, the administrator can easily configure or change what data is to be monitored.
How do I enable port mirroring?
Enable port mirroring on your switch
- In Dashboard, navigate to Switch > Monitor > Switch ports.
- Select one or more ports to be mirrored.
- Click Mirror:
- Specify the destination mirror port, which will be used to capture traffic on the source ports.
- Click Create port mirror:
What is SPAN or mirror port?
Port Mirroring, also known as SPAN (Switched Port Analyzer), is a method of monitoring network traffic. With port mirroring enabled, the switch sends a copy of all network packets seen on one port (or an entire VLAN) to another port, where the packet can be analyzed.
How do I setup port mirroring?
What can port mirroring do for a network?
With port mirroring enables, the packets can be monitored and analyzed. Port mirroring is applied widely, for example, network engineers can use port mirroring to analyze and debug data or diagnose errors on their networks without affecting the packet processing capabilities of the network devices.
What’s the best way to mirror a video?
When the preview image reaches your request, you can click “OK” to save the setting. Set the output path and click “Run” to start to achieve the video mirror effect. VLC Media Player is not only a multimedia player, it can also be used as a video converter and video editor.
Where are source ports located in port mirroring?
All source ports are located on the same network device as the destination ports. As figure 1 shows, local port mirroring enables the network switch to forward the copy of the packet on the source port (Eth 1/1) to the destination port (Eth 1/2). Then the monitoring device connected with the destination port can monitor and analyze the packet.
Is it port mirroring or promiscuous mode?
Purists will argue that putting your network card in promiscuous mode is not “port mirroring,” because your network card is not duplicating packets. They say the card is just dropping the requirement for its MAC address in order to recognize arriving packets and forward them to applications on your computer.