Gigabit Ethernet Interface Configuration; Selecting The Port For The Gigabit Ethernet Interface - Cisco 2800 Series Manual

Examples of Using the Setup Command Facility to Configure Interface Parameters

Gigabit Ethernet Interface Configuration

The following is a brief example of configuring a Gigabit Ethernet interface by using the setup command
facility:
Note The Gigabit Ethernet interface is not supported on Cisco 1841, Cisco 2801, or Cisco 2811 routers.
Configuring interface GigabitEthernet0/0:
Configure IP on this interface? [yes]:
On Cisco 3800 series routers, the port gig 0/0 supports both the small form-factor pluggable Gigabit
Note
Ethernet Interface Converter (SFP GBIC) and RJ-45 media types. The port gig 0/1 supports only RJ-45.
To select between SFP or RJ-45 for port gig 0/0, use the media-type command. More details follow in
the
The following are two examples of configurations for the Gigabit Ethernet (GE) interface. The first
example shows a sample configuration for RJ-45 mode, applicable to either port gig 0/0 or port gig 0/1:
interface GigabitEthernet0/0
ip address 1.3.153.13 255.0.0.0
duplex auto
speed auto
media-type RJ-45
SFP mode (on Cisco 3800 seriers routers only) is available only on port gig 0/0:
interface GigabitEthernet0/0
ip address 1.3.153.13 255.0.0.0
duplex auto
speed auto
media-type sfp

Selecting the Port for the Gigabit Ethernet Interface

The SFP port is supported for the GE port 0 only. GE port 1 supports only RJ-45 (or copper mode)
operation.
To select SFP type for GE port 0, use the following commands from the command-line interface (CLI):
router(config)# int gigabitEthernet 0/0
router(config-if)# media-type sfp
GigabitEthernet0/0: Changing media to SFP.
The SFP port can only be set to 1000-Mbps or automatic speed. Duplex can be set to full-duplex or
Note
automatic mode. Half-duplex communication is not supported.
Basic Software Configuration Using the Setup Command Facility
6
IP address for this interface [192.168.200.215]: 1.0.0.1
Subnet mask for this interface [255.255.255.0] : 255.0.0.0
Class A network is 1.0.0.0, 8 subnet bits; mask is /8
"Selecting the Port for the Gigabit Ethernet Interface" section on page 6.
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