User Manual

Moxa’s Managed Switch Next Generation OS (v3.x) User Manual
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To view the LLDP status for a specific port, click the detailed information icon on the port. All information
will be shown on the right side of the page.
Port Mirroring
Port Mirroring Overview
The Port Mirroring function can be used to monitor data being transmitted through a specific port. This is
done by setting up another port (the mirror port) to receive the same data being transmitted from, or both
to and from, the port under observation. Using a mirror port allows the network administrator to sniff the
observed port to keep tabs on network activity.
How Port Mirror Works
Port Mirroring can configure to copy one or more packets from various ports to a single port, so that users
can check if there are problems occurring in these ports. For example, the following figure demonstrates
how the packets transmitted in the four mirrored ports (marked in orange) are copied (mirrored) to a single
mirroring port (marked in green). These packets will be sent to a monitoring computer and then software is
used to check if there is something wrong with these packets. It is a useful function to troubleshoot or
debug a network data transmission issue.