Cisco SFS7000P-SK9 Command Reference - Page 38

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Cisco SFS 7000 Series Product Family Command Reference Guide

OL-9163-02

Chapter 2

Administrative Commands

auto-negotiate

auto-negotiate

To configure your Server Switch to

•

dynamically determine the connection speed of direct-attached Fibre Channel devices,

•

dynamically determine the connection speed of direct-attached Ethernet devices,

•

dynamically determine the connection speed of direct-attached InfiniBand devices,

enter the

auto-negotiate

command in the appropriate Interface Configuration submode. To disable

auto-negotiation, use the

no

form of this command.

auto-negotiate

no auto-negotiate

Syntax Description

This command has no arguments or keywords

Defaults

Fibre Channel and Ethernet ports auto-negotiate connection speeds by default.

Command Modes

Fibre Channel Interface Configuration (config-if-fc) submode, Ethernet Interface Configuration

(config-if-ether) submode, InfiniBand Interface Configuration (config-if-ib) submode.

Usage Guidelines

Platform Availability:

Cisco SFS 3001, Cisco SFS 7000, Cisco SFS 7008, Cisco SFS 3012, Cisco 4x InfiniBand Switch Module

for IBM BladeCenter

Privilege Level:

Fibre Channel read-write user (for FC ports), Ethernet read-write user (for Ethernet ports), InfiniBand

read-write user (for InfiniBand ports).

Fibre Channel:

Before you configure your FC port to auto-negotiate speed, follow these steps to verify that the attached

Fibre Channel device supports auto-negotiation:

Step 1

Enter the

show interface fc

command in User Exec mode or Privileged Exec mode.

Step 2

Verify that the

auto-negotiate-supported

field of the command output displays

yes

. If the field displays

no

, you must manually configure the connection speed of the port.

Note

If you disable auto-negotiation in the CLI but leave it active on the attached Fibre Channel devices, the

port manager for the Fibre Channel interface on your device does not negotiate speed and mode with the

FC devices. The FC devices may choose a different duplex setting than the port manager and produce

unexpected results.

Section	Page
Cisco SFS 7000 Series Product Family Command Reference Guide	1
Contents	3
Preface	11
Audience	11
Organization	11
Conventions	12
Related Documentation	13
Obtaining Documentation	13
Cisco.com	13
Product Documentation DVD	13
Ordering Documentation	14
Documentation Feedback	14
Cisco Product Security Overview	14
Reporting Security Problems in Cisco Products	15
Obtaining Technical Assistance	15
Cisco Technical Support & Documentation Website	16
Submitting a Service Request	16
Definitions of Service Request Severity	16
Obtaining Additional Publications and Information	17
Using the CLI	19
Setting up the Switch	19
Starting A CLI Session	20
Logging In	21
Authentication	21
Customizing the Login Prompt	22
Entering CLI Modes	22
Using User Execute Mode	23
Using Privileged Execute Mode	23
Using Global Configuration Mode	23
Exiting CLI Modes	24
Quick Help	24
Command Abbreviation	25
Editing the CLI	25
Exiting the CLI Session	26
Specifying Modules and Ports	27
Slot#/Port# Pairs	27
Ranges	27
Lists	27
The “all” Keyword	28
Using the Documentation	28
Synopsis	28
Syntax	28
Platform Availability	28
Command Modes	29
Privilege Level	29
Usage Guidelines	29
Examples	29
Defaults	29
Related Commands	29
Administrative Commands	31
Fibre Channel Commands	115
InfiniBand Commands	139
IP Commands	155
Show Commands	167
Diagnostic Commands	381
Running Diagnostic Tests	381

Cisco SFS7000P-SK9 Command Reference - Page 38

auto-negotiate

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