User manual
C
HAPTER
5
| Interface Configuration
Port Configuration
– 66 –
ES-2000 Series
◆ 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.
◆ 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
(25-26 on the ES-2026/P and 21-24 on ES-2024G/P).
■
Copper-Forced - Always uses the built-in RJ-45 port.
■
SFP-Forced
- Always uses the SFP port (even if a module is not
installed).
■
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.
■
10h - Supports 10 Mbps half-duplex operation
■
10f - Supports 10 Mbps full-duplex operation
■
100h - Supports 100 Mbps half-duplex operation
■
100f - Supports 100 Mbps full-duplex operation
■
1000f (Gigabit ports only) - Supports 1000 Mbps full-duplex
operation
■
Sym (Gigabit only) - Check this item to transmit and receive pause
frames.
■
FC - 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