Web-based Configuration Guide Port Management
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Select Load Balance Algorithm and click Save. The Device distributes incoming packets among member links
by using the specified load balancing algorithm. The packet flow with the consistent feature is transmitted by
one member link, whereas different packet flows are evenly distributed to various links.
4.4 Port Mirroring
4.4.1 Overview
The switched port analyzer (SPAN) function is a function that copies packets of a specified port to another port
that is connected to a network monitoring device, After port mirroring is set, the packets on the source port will
be copied and forwarded to the destination port, and a packet analyzer is usually connected to the destination
port to analyze the packet status of the source port, so as to monitor all incoming and outgoing packets on
source ports.
As shown, by configuring port mirroring on Device A, the device copies the packets on Port 1 to Port 10. Although
the network analysis device connected to Port 10 is not directly connected to Port 1, it can receive packets
through Port 1. Therefore, the aim to monitor the data flow transmitted by Port 1 is realized.
Figure 4-1 Port Mirroring Principles Figure
The SPAN function not only realizes the data traffic analysis of suspicious network nodes or device ports, but
also does not affect the data forwarding of the monitored device. It is mainly used in network monitoring and
troubleshooting scenarios.
4.4.2 Procedure
Choose Local Device > Ports > Port Mirroring.
Click Edit, select the source port, destination port, monitor direction, and whether to receive packets from non-
Src ports, and click OK. A maximum of four SPAN entries can be configured.
To delete the port mirroring configuration, click Delete in the corresponding Action column.
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