Administrator Guide

auto Enter the keyword auto to set the interface to auto-negotiate its speed. Auto-
negotiation is enabled. For more information, refer to negotiation auto.
Defaults auto
Command Modes INTERFACE
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.14.1.2 Introduced the option 10000 speed setting on the S5048F-ON.
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Added support for fanned–out 1 Gigabit SFP port.
9.8(2.0) Introduced on the S3100 series.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.3.1.0 Supported on LC-EH-GE-50P or the LC-EJ-GE-50P cards.
8.1.1.0 Introduced on the E-Series.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
E-Series legacy
command
Usage Information
This command is found on the 10/100/1000/10000 Base-T Ethernet interfaces.
When you enable auto, the system performs an automatic discovery to determine the optics installed and
configure the appropriate speed.
When you configure a speed for the 10/100/1000/10000 interface, 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.
NOTE: Starting with Dell EMC Networking OS 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.
If you use an active optical cable (AOC), you can convert the QSFP+ port to a 10 Gigabit SFP+ port or 1 Gigabit
SFP port. Use the speed command to enable the required speed.
Related
Commands
• negotiation auto — enable or disable auto-negotiation on an interface.
speed (Management interface)
Set the speed for the Management interface.
Syntax
speed {10 | 100 | 1000 | auto}
652 Interfaces