C
HAPTER
4
| Configuring the Switch
Configuring Port Connections
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CONFIGURING PORT CONNECTIONS
The Port Configuration page includes configuration options for enabling
auto-negotiation or manually setting the speed and duplex mode, enabling
flow control, setting the maximum frame size, specifying the response to
excessive collisions, or enabling power saving mode.
PARAMETERS
The following parameters are displayed on the Port Configuration page:
◆ Link – Indicates if the link is up or down.
◆ Speed – Sets the port speed and duplex mode using auto-negotiation
or manual selection. The following options are supported:
■
Disable - Disables the interface. You can disable an interface due to
abnormal behavior (e.g., excessive collisions), and then re-enable it
after the problem has been resolved. You may also disable an
interface for security reasons.
■
Auto - Enables auto-negotiation. When using auto-negotiation, the
optimal settings will be negotiated between the link partners based
on their advertised capabilities.
■
1G FDX - Supports 1 Gbps full-duplex operation
■
100Mbps FDX - Supports 100 Mbps full-duplex operation
■
100Mbps HDX - Supports 100 Mbps half-duplex operation
■
10Mbps FDX - Supports 10 Mbps full-duplex operation
■
10Mbps HDX - Supports 10 Mbps half-duplex operation
(Default: Autonegotiation enabled; Advertised capabilities for
RJ-45: 1000BASE-T - 10half, 10full, 100half, 100full, 1000full;
SFP: 1000BASE-SX/LX/LH - 1000full)
N
OTE
:
The 1000BASE-T standard does not support forced mode. Auto-
negotiation should always be used to establish a connection over any
1000BASE-T port or trunk. If not used, the success of the link process
cannot be guaranteed when connecting to other types of switches.
◆ Flow Control – Flow control can eliminate frame loss by “blocking”
traffic from end stations or segments connected directly to the switch
when its buffers fill. When enabled, back pressure is used for half-
duplex operation and IEEE 802.3-2005 (formally IEEE 802.3x) for full-
duplex operation. (Default: Disabled)
When auto-negotiation is used, this parameter indicates the flow
control capability advertised to the link partner. When the speed and
duplex mode are manually set, the Current Rx field indicates whether
pause frames are obeyed by this port, and the Current Tx field indicates
if pause frames are transmitted from this port.
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