Reference Guide

When you configure a speed for the 10/100/1000 interface, you should confirm the negotiation
auto command setting. Both sides of the link must have auto-negotiation either enabled or
disabled. For speed settings of 1000 or auto, the software sets the link to auto-negotiation and
you cannot change that setting.
In FTOS, the command speed 100 is an exact equivalent of speed auto 100 in IOS.
NOTE: Starting with FTOS version 7.8.1.0, when you use a copper SFP2 module with
catalog number GP-SFP2-1T in the S25P model of the S-Series, you can manually set its
speed with the speed command. When you set the speed to 10 or 100 Mbps, you can also
use the duplex command.
Related
Commands
duplex (10/100 Interfaces) – configures duplex mode on physical interfaces with the speed set
to 10/100.
negotiation auto – enables or disables auto-negotiation on an interface.
speed (Management interface)
Set the speed for the Management interface.
C-Series, E-Series, Z-Series, S4810
Syntax
speed {10 | 100 | auto}
To return to the default setting, use the no speed {10 | 100} command.
Parameters
10 Enter the keyword 10 to set the interface’s speed to 10 Mb/s.
100 Enter the keyword 100 to set the interface’s speed to 10/100 Mb/s.
auto Enter the keyword auto to set the interface to auto-negotiate its
speed.
Defaults auto
Command Modes INTERFACE
Command History
Version 8.3.11.1 Introduced on the Z9000.
Version 8.3.11.1 Introduced on the S55, S60, and S4810
Version 8.1.1.0 Introduced on the E-Series ExaScale.
Version 7.5.1.0 Introduced on the C-Series.
pre-Version
6.2.1.0
Introduced on the E-Series.
Usage
Information
This command is found on the Management interface only.
Related
Commands
interface ManagementEthernet – configures the Management port on the system (either the
Primary or Standby RPM).
duplex (10/100 Interfaces) – configures duplex mode on physical interfaces with the speed set
to 10/100.
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