D-Link DGS-3212SR, Руководство пользователя, Страница: 59 / 140

D-Link DGS-3212SR Layer 2 Gigabit Ethernet Switch
adjustment of port settings with any option other than Auto .
Flow Control Displays the flow control scheme used for the various port configurations.
Ports configured for full-duplex use 802.3x flow control, half-duplex ports
use backpressure flow control, and Auto ports use an automatic selection
of the two. The default is
Disabled .
Learning Enable or disable MAC address learning for the selected ports. When
Enabled , destination and source MAC addresses are automatically listed in
the forwarding table. When learning is Disabled , MAC addresses must be
manually entered into the forwarding table. This is sometimes done for
reasons of security or efficiency. See the section titled
Forwarding and
Filtering for information on entering MAC addresses into the forwarding
table.
Port Mirroring
Figure 6-2. Port Mirroring window
The Switch allows you to copy frames transmitted and received on a port and redirect the copies to another port.
You can attach a monitoring device to the mirrored port, such as a sniffer or an RMON probe, to view details
about the packets passing through the first port.
To configure a mirror port,
1. Select the Source Port from where you want to copy frames and the Target Port , which receives the
copies from the source port.
2. Select the Source Direction, Ingress, Egress , or Both and change the Status drop-down menu to
Enabled.
3. Click Apply to let the changes take effect.
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