My Oracle Support Banner

Recommended Sun Systems Ethernet Port Configuration (Auto-Negotiation or Manual Configuration) (Doc ID 1006000.1)

Last updated on APRIL 24, 2020

Applies to:

Solaris Operating System - Version 8.0 to 10 9/10 U9 [Release 8.0 to 10.0]
Solaris Operating System - Version 9 GA and later
All Platforms


Using auto-negotiation is the IEEE 802.3 standard and customers are encouraged to follow the "intent" of 802.3u/z standards and implement auto-negotiation in fast Ethernet and gigabit Ethernet environments. 

Oracle recommends that the practice of forcing interfaces should be avoided unless absolutely necessary. Disabling auto-negotiation has been the source of many cases involving link failures, network delays and performance problems.

Policies which dictate the disabling of auto-negotiation for historical reasons should now be discouraged.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.