C
HAPTER
5
| Interface Configuration
Port Configuration
– 128 –
COMMAND USAGE
â—† Auto-negotiation must be disabled before you can configure or force an
RJ-45 interface to use the Speed/Duplex mode or Flow Control options.
â—† When using auto-negotiation, the optimal settings will be negotiated
between the link partners based on their advertised capabilities. To set
the speed, duplex mode, or flow control under auto-negotiation, the
required operation modes must be specified in the capabilities list for
an interface.
â—† 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.
â—† The Speed/Duplex mode is fixed at 1000full on the Gigabit SFP ports.
When auto-negotiation is enabled, the only attributes which can be
advertised include flow control and symmetric pause frames.
PARAMETERS
These parameters are displayed:
◆ Port – Port identifier. (Range: 1-26)
◆ Type – Indicates the port type. (100Base-TX, 100Base-FX,
1000Base-T, 1000Base SFP)
◆ Name – Allows you to label an interface. (Range: 1-64 characters)
◆ Admin – Allows you to manually disable an 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.
◆ Media Type –
Not applicable for this switch.
◆ Autonegotiation (Port Capabilities) – Allows auto-negotiation to be
enabled/disabled. When auto-negotiation is enabled, you need to
specify the capabilities to be advertised. When auto-negotiation is
disabled, you can force the settings for speed, mode, and flow
control.The following capabilities are supported.
â–
10h - Supports 10 Mbps half-duplex operation
â–
10f - Supports 10 Mbps full-duplex operation
â–
100h - Supports 100 Mbps half-duplex operation
â–
100f - Supports 100 Mbps full-duplex operation
â–
1000f - Supports 1000 Mbps full-duplex operation
â–
Sym (Gigabit only) - Check this item to transmit and receive pause
frames.
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