l
Flow Control
—
Allows automatic or manual selection of support for flow control and indicates the type of flow control currently in use.
l
Autonegotiation/Port Capabilities
—
Allows autonegotiation to be enabled/disabled and indicates the capabilities of the port that are advertised during
autonegotiation:
¡
10h
—
Supports 10-megabits per second (Mbps) half duplex.
¡
10f
—
Supports 10-Mbps full duplex.
¡
100h
—
Supports 100-Mbps half duplex.
¡
100f
—
Supports 100-Mbps full duplex.
¡
1000h
—
Supports 1000-Mbps half duplex.
¡
1000f
—
Supports 1000-Mbps full duplex.
¡
Sym
—
Supports symmetric operation of full-duplex flow control. The port can transmit and receive pause frames for flow control (gigabit ports
only).
¡
FC
—
Supports full-duplex flow control.
l
Trunk
—
Indicates whether a port is a member of an aggregated link or trunk.
CLI Commands
The following table summarizes the equivalent CLI commands for items in the
Ports/Port Configuration
page.
Example
Console(config)#interface ethernet 1/5
NOTICE:
If autonegotiation is disabled for an RJ-45 port, the auto- MDI/MDI-X pin signal configuration is also disabled.
Command
Usage
interface ethernet
unit/port
Configures an Ethernet port interface and enters interface
configuration mode.
shutdown
Disables an interface.
To restart a disabled interface, use the
no form
command.
description
string
Adds a description to an interface.
speed-duplex {1000full | 100full |
100half | 10full | 10half}
Configures the speed and duplex mode of a given interface when
autonegotiation is disabled.
negotiation
Enables autonegotiation for a given interface.
Use the
no form
command to disable autonegotiation.
capabilities {1000full | 100full |
100half | 10full | 10half | flowcontrol |
symmetric}
Advertises the port capabilities of a given interface during
autonegotiation.
Use the
no form with parameters
command to remove an advertised
capability, or the
no form without parameters
command to restore
the default values.
flowcontrol
Enables flow control.
Use the
no form
command to disable flow control.
show interfaces status ethernet
unit/port
Displays status for enabled interfaces.
show interfaces switchport [ethernet
unit/port
]
Displays the configuration for a port.
NOTICE:
Flow control only works for ports connected to the same internal switch chip (ports 1 to 12 and ports 13 to 24). Cross-chip flow control does
not work.
