C
HAPTER
5
| Interface Configuration
Port Configuration
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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: 1-10)
◆ Type – Indicates the port type. (100Base-TX, 1000Base-T,
100Base SFP, 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 – Configures the forced/preferred port type to use for the
combination ports
(Ports 9-10).
â–
Copper-Forced - Always uses the built-in RJ-45 port.
â–
SFP-Forced
- Always uses the SFP port (even if a module is not
installed).
â–
SFP-Preferred-Auto
- Uses SFP port if both combination types are
functioning and the SFP port has a valid link. (This is the default for
the combination ports.)
◆ 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
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