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Cisco IE-3000-8TC Command Reference

Cisco IE-3000-8TC
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2-107
Cisco IE 3000 Switch Command Reference
OL-13019-01
Chapter 2 IE 3000 Switch Cisco IOS Commands
duplex
duplex
Use the duplex interface configuration command to specify the duplex mode of operation for a port. Use
the no form of this command to return the port to its default value.
duplex {auto | full | half}
no duplex
Syntax Description
Defaults The default is auto for Fast Ethernet and Gigabit Ethernet ports.
The default is full for 100BASE-x (where -x is -BX, -FX, -FX-FE, or - LX) SFP modules.
Duplex options are not supported on the 1000BASE-x (where -x is -BX, -CWDM, -LX, -SX, or -ZX)
SFP modules.
For information about which SFP modules are supported on your switch, see the product release notes.
Command Modes Interface configuration
Command History
Usage Guidelines For Fast Ethernet ports, setting the port to auto has the same effect as specifying half if the attached
device does not autonegotiate the duplex parameter.
For Gigabit Ethernet ports, setting the port to auto has the same effect as specifying full if the attached
device does not autonegotiate the duplex parameter.
Note Half-duplex mode is supported on Gigabit Ethernet interfaces if the duplex mode is auto and the
connected device is operating at half duplex. However, you cannot configure these interfaces to
operate in half-duplex mode.
Certain ports can be configured to be either full duplex or half duplex. Applicability of this command
depends on the device to which the switch is attached.
If both ends of the line support autonegotiation, we highly recommend using the default autonegotiation
settings. If one interface supports autonegotiation and the other end does not, configure duplex and speed
on both interfaces; do use the auto setting on the supported side.
auto Enable automatic duplex configuration; port automatically detects whether it
should run in full- or half-duplex mode, depending on the attached device mode.
full Enable full-duplex mode.
half Enable half-duplex mode (only for interfaces operating at 10 or 100 Mb/s). You
cannot configure half-duplex mode for interfaces operating at 1000 or
10,000
Mb/s.
Release Modification
12.2(44)EX This command was introduced.

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Cisco IE-3000-8TC Specifications

General IconGeneral
Switching Capacity16 Gbps
MAC Address Table Size8000
Uplink Ports2 x 10/100/1000Base-T or SFP (Small Form-Factor Pluggable)
Operating Temperature-40°C to 70°C
MountingDIN rail
Ports8 x Ethernet 10/100Base-TX ports
Jumbo Frame SupportYes

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