Managing Device Diagnostics

Configuring Port Mirroring

Configuring Port Mirroring

Port mirroring monitors and mirrors network traffic by forwarding copies of incoming and outgoing packets from one port to a monitoring port. Port mirroring can be used as a diagnostic tool as well as a debugging feature. Port mirroring also enables switch performance monitoring.

Network administrators can configure port mirroring by selecting a specific port from which to copy all packets, and other ports to which the packets copied.

To enable port mirroring:

1.Click System > Diagnostics > Port Mirroring. The Port Mirroring Page opens:

Figure 132:Port Mirroring Page

The Port Mirroring Page contains the following fields:

Destination Port — Defines the port number to which port traffic is copied.

Transmit Packets — Defines the how the packets are mirrored. The possible field values are:

Untagged — Mirrors packets as untagged VLAN packets. This is the default value.

Tagged — Mirrors packets as tagged VLAN packets.

Source Port — Indicates the port from which the packets are mirrored.

Type — Indicates the port mode configuration for port mirroring. The possible field values are:

RX — Defines the port mirroring on receiving ports.

TX — Defines the port mirroring on transmitting ports.

Both — Defines the port mirroring on both receiving and transmitting ports. This is the default value.

Status — Indicates if the port is currently monitored. The possible field values are:

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D-Link DES-3010FA/GA manual Configuring Port Mirroring