Cisco Cisco IOS Software Release 12.0(14)S
Cisco 7200-I/O-GE+E and Cisco 7200-I/O-2FE/E Input/Output Controllers
negotiation
9
Cisco IOS Release 12.0(14)S
negotiation
On the Gigabit Ethernet port of the Cisco 7200-I/O-GE+E to configure speed, duplex, and flow control,
use the negotiation {forced | auto} interface configuration command. Use the no negotiation auto
command to disable automatic negotiation.
use the negotiation {forced | auto} interface configuration command. Use the no negotiation auto
command to disable automatic negotiation.
negotiation {forced | auto}
Syntax Description
Defaults
Negotiation auto
Command Modes
Interface configuration
Command History
Usage Guidelines
The negotiation command is applicable only to the Gigabit Ethernet interface of the
Cisco 7200-I/O-GE+E. The negotiation auto command is used instead of the duplex and speed
commands (which are used on Ethernet and Fast Ethernet interfaces) to automatically configure the
duplex and speed settings of the interfaces. The negotiation forced command is used to configure the
Gigabit Ethernet interface to be 1000/full-duplex only and to disable flow-control. The Gigabit Ethernet
interface of the Cisco 7200-I/O-GE+E is restricted to 1000 Mbps/full duplex only. Autonegotiation only
negotiates to these values.
Cisco 7200-I/O-GE+E. The negotiation auto command is used instead of the duplex and speed
commands (which are used on Ethernet and Fast Ethernet interfaces) to automatically configure the
duplex and speed settings of the interfaces. The negotiation forced command is used to configure the
Gigabit Ethernet interface to be 1000/full-duplex only and to disable flow-control. The Gigabit Ethernet
interface of the Cisco 7200-I/O-GE+E is restricted to 1000 Mbps/full duplex only. Autonegotiation only
negotiates to these values.
Examples
The following example configures the Gigabit Ethernet interface of the Cisco 7200-I/O-GE +E to auto
negotiate:
negotiate:
configure terminal
interface gigabitethernet 0/0
negotiation auto
forced
The Gigabit Ethernet interface is 1000/full-duplex only and flow control is
disabled.
disabled.
auto
The autonegotiation protocol configures the speed, duplex, and automatic
flow-control of the Gigabit Ethernet interface.
flow-control of the Gigabit Ethernet interface.
Release
Modification
11.1 CC
This command was introduced.
12.0(7)S, 12.0(6)T
The forced keyword was included.
12.1(3a)E
Support for the Cisco 7200-I/O-GE+E controller was introduced.
12.0(14)S
Support for the Cisco 7200-I/O-GE+E controller was introduced on the
S train.
S train.