SMC Networks SMCGS10C-SMART Management Manual page 53

Speed – Sets the port speed and duplex mode using auto-negotiation
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or manual selection. The following options are supported:
Disabled - Disables the interface. You can disable an interface due
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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
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optimal settings will be negotiated between the link partners based
on their advertised capabilities.
1Gbps FDX - Supports 1 Gbps full-duplex operation
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100Mbps FDX - Supports 100 Mbps full-duplex operation
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100Mbps HDX - Supports 100 Mbps half-duplex operation
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10Mbps FDX - Supports 10 Mbps full-duplex operation
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10Mbps HDX - Supports 10 Mbps half-duplex operation
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(Default: Autonegotiation enabled; Advertised capabilities for
RJ-45: 1000BASE-T - 10half, 10full, 100half, 100full, 1000full;
SFP: 1000BASE-SX/LX/LH - 1000full)
The 1000BASE-T standard does not support forced mode. Auto-
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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"
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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.
Avoid using flow control on a port connected to a hub unless it is
actually required to solve a problem. Otherwise back pressure jamming
signals may degrade overall performance for the segment attached to
the hub.
Maximum Frame Size – Sets the maximum transfer unit for traffic
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crossing the switch. Packets exceeding the maximum frame size are
dropped. (Range: 9600-1518 bytes; Default: 9600 bytes)
Excessive Collision Mode – Sets the response to take when excessive
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transmit collisions are detected on a port.
Discard - Discards a frame after 16 collisions (default).
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Restart - Restarts the backoff algorithm after 16 collisions.
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– 53 –
| Configuring the Switch
C 4
HAPTER
Configuring Port Connections