Alcatel OmniSwitch 6850 User Manual

Part No. 060209-10, Rev. E

August 2007

OmniSwitch 6850 Series

Hardware Users Guide

www.alcatel-lucent.com

This user guide documents OmniSwitch 6850 Series hardware, including chassis and associated components.

The specifications described in this guide are subject to change without notice.

Copyright © 2007 by Alcatel-Lucent. All rights reserved. This document may not be reproduced in whole or in part without the express written permission of Alcatel-Lucent.

Alcatel-Lucent® and the Alcatel-Lucent logo are registered trademarks of Alcatel-Lucent. Xylan®, OmniSwitch®, OmniStack®, and Alcatel-Lucent OmniVista® are registered trademarks of Alcatel-Lucent.

OmniAccess™, Omni Switch/Router™, PolicyView™, RouterView™, SwitchManager™, VoiceView™, WebView™, X-Cell™, X-Vision™, and the Xylan logo are trademarks of Alcatel-Lucent.

This OmniSwitch product contains components which may be covered by one or more of the following U.S. Patents:

•U.S. Patent No. 6,339,830

•U.S. Patent No. 6,070,243

•U.S. Patent No. 6,061,368

•U.S. Patent No. 5,394,402

•U.S. Patent No. 6,047,024

•U.S. Patent No. 6,314,106

•U.S. Patent No. 6,542,507

•U.S. Patent No. 6,874,090

26801 West Agoura Road

Calabasas, CA 91301

[phone] FAX [phone] [e-mail]

US Customer Support—[phone] International Customer Support—[phone] Internet—service.esd.alcatel-lucent.com

ii	OmniSwitch 6850 Series Hardware Users Guide August 2007

Contents

	About This Guide ..........................................................................................................	ix
	Supported Platforms ..........................................................................................................	ix
	Who Should Read this Manual? ........................................................................................	xi
	When Should I Read this Manual? ....................................................................................	xi
	What is in this Manual? .....................................................................................................	xi
	What is Not in this Manual? ..............................................................................................	xi
	How is the Information Organized? .................................................................................	xii
	Documentation Roadmap .................................................................................................	xii
	Related Documentation ...................................................................................................	xiv
	User Manual CD ..............................................................................................................	xv
	Technical Support ............................................................................................................	xv
Chapter 1	OmniSwitch 6850 Series ...........................................................................................	1-1
	Availability Features .......................................................................................................	1-3
	Software Rollback ....................................................................................................	1-3
	Backup Power Supplies ............................................................................................	1-3
	Hot Swapping ...........................................................................................................	1-4
	Hardware Monitoring ...............................................................................................	1-4
	OmniSwitch 6850 Series Application Examples ............................................................	1-5
	Gigabit-to-the-Desktop Migration ............................................................................	1-5
	Server Aggregation ..................................................................................................	1-6
	Layer 3 Aggregation/Distribution ............................................................................	1-7
	Small Enterprise Core ..............................................................................................	1-8
Chapter 2	OmniSwitch 6850 Series Chassis and Hardware Components .....................	2-1
	OmniSwitch 6850-24L ....................................................................................................	2-4
	OmniSwitch 6850-48L ....................................................................................................	2-8
	OmniSwitch 6850-P24L ................................................................................................	2-11
	OmniSwitch 6850-P48L ................................................................................................	2-15
	OmniSwitch 6850-U24X ..............................................................................................	2-19
	OmniSwitch 6850-24 ....................................................................................................	2-23
	OmniSwitch 6850-48 ....................................................................................................	2-27
	OmniSwitch 6850-24X .................................................................................................	2-31
	OmniSwitch 6850-48X .................................................................................................	2-35
	OmniSwitch 6850-P24 ..................................................................................................	2-38

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iii

	Contents
OmniSwitch 6850-P48 ..................................................................................................	2-42
OmniSwitch 6850-P24X ...............................................................................................	2-46
OmniSwitch 6850-P48X ...............................................................................................	2-50
Status LEDs ...................................................................................................................	2-54
10/100/1000 LEDs .................................................................................................	2-55
100/1000 SFP LEDs ...............................................................................................	2-55
10000 XFP1 LEDs .................................................................................................	2-55
10000 XFP2 LEDs .................................................................................................	2-55
Rear Panel .....................................................................................................................	2-56
Mounting the Switch .....................................................................................................	2-57
Airflow Considerations ..........................................................................................	2-57
Chassis Airflow ...............................................................................................	2-58
Blank Cover Panels ................................................................................................	2-59
Installation Options ................................................................................................	2-60
Installing the Switch on a Tabletop or Bench .................................................	2-60
Rack-Mounting the Switch ..............................................................................	2-61
Installing and Removing Combo Port SFPs ...........................................................	2-62
Setting Up a Stacked Configuration ..............................................................................	2-63
Rack Mounting Stacked Configurations ................................................................	2-63
Cabling Stacked Configurations .............................................................................	2-63
Redundant Stacking Cable Connections .........................................................	2-63
Supported Cabling Patterns .............................................................................	2-63
Booting OmniSwitch 6850 Series Switches .................................................................	2-66
Booting a Stand-Alone Switch ...............................................................................	2-66
Booting Stacked Configurations ............................................................................	2-67
Power Cords ..................................................................................................................	2-68
Specifications .........................................................................................................	2-68
Console Port ..................................................................................................................	2-69
Serial Connection Default Settings ........................................................................	2-69
Modifying the Serial Connection Settings .............................................................	2-69
Console Port Pinouts ..............................................................................................	2-71
10/100 Ethernet Port – RJ-45 Pinout (non-PoE) .............................................	2-71
Gigabit Ethernet Port – RJ-45 Pinout ..............................................................	2-71
10/100/1000 Mbps Power over Ethernet Port – RJ-45 Pinout .......................	2-71
RJ-45 Console Port – Connector Pinout ..........................................................	2-72
OmniSwitch 6850 Series Power Supplies .....................................................................	2-73
Power Supply Shelf ................................................................................................	2-75
PS-510W-AC Power Supply ..................................................................................	2-76
PS-360W-AC Power Supply ..................................................................................	2-77
PS-126W-AC Power Supply ..................................................................................	2-78
PS-120W-DC Power Supply ..................................................................................	2-79
Installing Power Supplies .......................................................................................	2-80
Connecting a Power Supply Directly to the Chassis .......................................	2-80
Connecting a Power Supply with a Cable .......................................................	2-81
DC Power Supply Considerations ...................................................................	2-85
Viewing the Power Supply Status ...................................................................	2-86

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Contents

	.................................................................................................Monitoring the Chassis	2-87
	Checking the Overall Chassis Status ......................................................................	2-87
	Checking the Temperature Status ..........................................................................	2-87
	Checking the Fan Status .........................................................................................	2-88
	Checking the Power Supply Status ........................................................................	2-88
	Additional Monitoring Commands ........................................................................	2-88
	Using LEDs to Visually Monitor the Chassis ........................................................	2-89
	Installing SFP and XFP Transceivers .....................................................................	2-89
		2-89
Chapter 3	Installing and Managing Power over Ethernet (PoE) ......................................	3-1
	In This Chapter ................................................................................................................	3-2
	Power over Ethernet Specifications ................................................................................	3-3
	Viewing PoE Power Supply Status .................................................................................	3-4
	Configuring Power over Ethernet Parameters .................................................................	3-5
	Power over Ethernet Defaults ..................................................................................	3-5
	Understanding and Modifying the Default Settings .................................................	3-5
	Setting the PoE Operational Status ....................................................................	3-5
	Configuring the Total Power Allocated to a Port ..............................................	3-6
	Configuring the Total Power Allocated to a Switch .........................................	3-6
	Setting Port Priority Levels ...............................................................................	3-7
	Setting the Capacitor Detection Method ...........................................................	3-8
	Understanding Priority Disconnect .................................................................................	3-9
	Setting Priority Disconnect Status ............................................................................	3-9
	Disabling Priority Disconnect ...........................................................................	3-9
	Enabling Priority Disconnect ............................................................................	3-9
	Priority Disconnect is Enabled; Same Priority Level on All PD .....................	3-10
	Priority Disconnect is Enabled; Incoming PD Port has Highest
	Priority Level ...................................................................................................	3-10
	Priority Disconnect is Enabled; Incoming PD Port has Lowest
	Priority Level ...................................................................................................	3-10
	Priority Disconnect is Disabled .......................................................................	3-11
	Monitoring Power over Ethernet via CLI .....................................................................	3-12
Chapter 4	Managing OmniSwitch 6850 Series Stacks ........................................................	4-1
	In This Chapter ................................................................................................................	4-2
	OmniSwitch 6850 Series Stack Overview ......................................................................	4-3
	Roles Within the Stack ....................................................................................................	4-3
	Primary and Secondary Management Modules .......................................................	4-3
	Primary Management Module Selection ...........................................................	4-6
	Secondary Management Module Selection .......................................................	4-9
	Idle Module Role ....................................................................................................	4-11
	Pass-Through Mode ...............................................................................................	4-12
	Recovering from Pass-Through Mode (Duplicate Slot Numbers) ..................	4-13
	Stack Cabling ................................................................................................................	4-16
	Redundant Stacking Cable Connection ..................................................................	4-17
	Checking Redundant Stacking Cable Status ..........................................................	4-18

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		Contents
	Slot Numbering .............................................................................................................	4-19
	Dynamic Slot Number Assignment ........................................................................	4-20
	Manual Slot Number Assignment ..........................................................................	4-22
	Reverting to the Dynamic Slot Numbering Model ..........................................	4-23
	Hot-Swapping Modules In a Stack ...............................................................................	4-24
	Removing Switches from an Existing Stack ..........................................................	4-24
	Inserting Switches Into an Existing Stack ..............................................................	4-24
	Merging Stacks .......................................................................................................	4-25
	Reloading Switches .......................................................................................................	4-26
	Reloading the Primary Management Module ........................................................	4-26
	Reloading the Secondary Management Module ....................................................	4-28
	Reloading Switches with Idle Roles .......................................................................	4-30
	Reloading Switches in Pass-Through Mode ..........................................................	4-30
	Reloading All Switches in a Stack .........................................................................	4-31
	Software Synchronization During a Full Reload .............................................	4-31
	Effects of Saved Slot Number Information on the Reload Process .................	4-31
	Avoiding Split Stacks .............................................................................................	4-33
	Changing the Secondary Module to Primary ................................................................	4-34
	Synchronizing Switches in a Stack ...............................................................................	4-36
	Automatic Synchronization During a Full Reload .................................................	4-36
	Monitoring the Stack .....................................................................................................	4-37
	Visually Monitoring the Stack ...............................................................................	4-37
	CLI Commands Supported on Both Primary and Secondary
	Management Modules ............................................................................................	4-38
Appendix A	Regulatory Compliance and Safety Information ..............................................	A-1
	Declaration of Conformity: CE Mark ............................................................................	A-1
	Waste Electrical and Electronic Equipment (WEEE) Statement ............................	A-1
	China RoHS: Hazardous Substance Table .....................................................................	A-2
	Standards Compliance ....................................................................................................	A-4
	FCC Class A, Part 15 ..............................................................................................	A-5
	Canada Class A Statement ......................................................................................	A-5
	JATE ........................................................................................................................	A-6
	CISPR22 Class A warning ......................................................................................	A-6
	VCCI .......................................................................................................................	A-6
	Class A Warning for Taiwan and Other Chinese Markets ......................................	A-6
	NEBS GR-1089 Compliance Requirements ..................................................................	A-7
	Translated Safety Warnings ...........................................................................................	A-8
	Chassis Lifting Warning ...................................................................................	A-8
	Blank Panels Warning ......................................................................................	A-8
	Electrical Storm Warning .................................................................................	A-8
	Installation Warning .........................................................................................	A-9
	Invisible Laser Radiation Warning ...................................................................	A-9
	Lithium Battery Warning ...............................................................................	A-10
	Operating Voltage Warning ...........................................................................	A-10
	Power Disconnection Warning .......................................................................	A-11
	Proper Earthing Requirement Warning ..........................................................	A-11

vi	OmniSwitch 6850 Series Hardware Users Guide August 2007

Contents

.................................................Read Important Safety Information Warning	A-12
Restricted Access Location Warning .............................................................	A-12
Wrist Strap Warning .......................................................................................	A-13
Instrucciones de seguridad en español .........................................................................	A-14
Advertencia sobre el levantamiento del chasis ...............................................	A-14
Advertencia de las tapaderas en blanco ..........................................................	A-14
Advertencia en caso de tormenta eléctrica .....................................................	A-14
Advertencia de instalación .............................................................................	A-14
Advertencia de radiación láser invisible .........................................................	A-14
Advertencia de la batería de litio ....................................................................	A-14
Advertencia sobre la tensión de operación .....................................................	A-14
Advertencia sobre la desconexión de la fuente ..............................................	A-14
Advertencia sobre una apropiada conexión a tierra .......................................	A-15
Leer “información importante de seguridad” .................................................	A-15
Advertencia de acceso restringido ..................................................................	A-15
Advertencia de pulsera antiestática ................................................................	A-15
Clase de seguridad ..........................................................................................	A-15
Index ......................................................................................................................	Index-1

OmniSwitch 6850 Series Hardware Users Guide August 2007

vii

Contents

viii	OmniSwitch 6850 Series Hardware Users Guide August 2007

About This Guide

This OmniSwitch 6850 Series Hardware Users Guide describes your switch hardware components and basic switch hardware procedures.

Supported Platforms

This information in this guide applies to the following products:

•OmniSwitch 6850-24L

•OmniSwitch 6850-48L

•OmniSwitch 6850-P24L

•OmniSwitch 6850-P48L

•OmniSwitch 6850-U24X

•OmniSwitch 6850-24

•OmniSwitch 6850-48

•OmniSwitch 6850-24X

•OmniSwitch 6850-48X

•OmniSwitch 6850-P24

•OmniSwitch 6850-P48

•OmniSwitch 6850-P24X

•OmniSwitch 6850-P48X

OmniSwitch 6850 Series Hardware Users Guide August 2007

page ix

Supported Platforms	About This Guide

Unsupported Platforms

The information in this guide does not apply to the following products:

•OmniSwitch (original version with no numeric model name)

•OmniSwitch 6600 Family

•OmniSwitch 6800 Series

•OmniSwitch 7700

•OmniSwitch 7800

•OmniSwitch 8800

•OmniSwitch 9000 Series

•OmniStack

•OmniAccess

page x

OmniSwitch 6850 Series Hardware Users Guide August 2007

About This Guide	Who Should Read this Manual?

Who Should Read this Manual?

The audience for this users guide is network administrators and IT support personnel who need to configure, maintain, and monitor switches and routers in a live network. However, anyone wishing to gain knowledge on the OmniSwitch 6850 Series hardware will benefit from the material in this guide.

When Should I Read this Manual?

Read this guide as soon as you are ready to familiarize yourself with your switch hardware components. You should have already stepped through the first login procedures and read the brief hardware overviews in the OmniSwitch 6850 Series Getting Started Guide.

You should already be familiar with the very basics of the switch hardware, such as module LEDs and module installation procedures. This manual will help you understand your switch hardware components (e.g., chassis, stacking and cables, backup power supplies, etc.) in greater depth.

What is in this Manual?

This users guide includes the following hardware-related information:

•Descriptions of stand-alone and stacked configurations.

•Descriptions of “availability” features.

•Descriptions of chassis types (e.g., the OS6850-P48X).

•Instructions for mounting the chassis.

•Descriptions of hardware components (status LEDs, chassis, stacking and cables, backup power supplies, etc.).

•Managing a stand-alone chassis.

•Setting up stacks.

•Managing stacks.

•Hardware-related Command Line Interface (CLI) commands

What is Not in this Manual?

The descriptive and procedural information in this manual focuses on switch hardware. It includes information on some CLI commands that pertain directly to hardware configuration, but it is not intended as a software users guide. There are several OmniSwitch 6850 Series users guides that focus on switch software configuration. Consult those guides for detailed information and examples for configuring your switch software to operate in a live network environment. See “Documentation Roadmap” on page -xii and “Related Documentation” on page -xiv for further information on software configuration guides available for your switch.

OmniSwitch 6850 Series Hardware Users Guide August 2007

page xi

How is the Information Organized?	About This Guide

How is the Information Organized?

This users guide provides an overview of OmniSwitch 6850 Series switches in the first chapter, an overview and procedures for setting up and managing OmniSwitch 6850 Series switches in the second chapter, an overview and procedures for managing Power over Ethernet (PoE) in the third chapter, and an overview and procedures for managing stacks in the fourth chapter.

Documentation Roadmap

The OmniSwitch user documentation suite was designed to supply you with information at several critical junctures of the configuration process.The following section outlines a roadmap of the manuals that will help you at each stage of the configuration process. Under each stage, we point you to the manual or manuals that will be most helpful to you.

Stage 1: Using the Switch for the First Time

Pertinent Documentation: OmniSwitch 6850 Series Getting Started Guide

Release Notes

The OmniSwitch 6850 Series Getting Started Guide provides all the information you need to get your switch up and running the first time. This guide provides information on unpacking the switch, rack mounting the switch, installing stacking cables, installing backup power supplies, unlocking access control, setting the switch’s IP address, setting up a password, and setting up stacks. It also includes succinct overview information on fundamental aspects of the switch, such as hardware LEDs, the software directory structure, stacking, CLI conventions, and web-based management.

At this time you should also familiarize yourself with the Release Notes that accompanied your switch. This document includes important information on feature limitations that are not included in other user guides.

Stage 2: Gaining Familiarity with Basic Switch Functions

Pertinent Documentation: OmniSwitch 6850 Series Hardware Users Guide OmniSwitch 6800/6850/9000 Switch Management Guide

Once you have your switch up and running, you will want to begin investigating basic aspects of its hard ware and software. Information about switch hardware is provided in the OmniSwitch 6850 Series Hardware Users Guide. This guide provide specifications, illustrations, and descriptions of all hardware components—e.g., chassis, stacking and stacking cables, backup power supplies, etc. It also includes steps for common procedures, such as removing and installing switch modules.

The OmniSwitch 6800/6850/9000 Switch Management Guide is the primary user guide for the basic software features on a single switch. This guide contains information on the switch directory structure, basic file and directory utilities, switch access security, SNMP, and web-based management. It is recommended that you read this guide before connecting your switch to the network.

page xii

OmniSwitch 6850 Series Hardware Users Guide August 2007

About This Guide	Documentation Roadmap

Stage 3: Integrating the Switch Into a Network

Pertinent Documentation: OmniSwitch 6800/6850/9000 Network Configuration Guide OmniSwitch 6800/6850/9000 Advanced Routing Configuration Guide

When you are ready to connect your switch to the network, you will need to learn how the OmniSwitch implements fundamental software features, such as 802.1Q, VLANs, and Spanning Tree. The OmniSwitch 6800/6850/9000 Network Configuration Guide contains overview information, procedures and examples on how standard networking technologies are configured in the OmniSwitch 6850 Series.

The OmniSwitch 6800/6850/9000 Advanced Routing Configuration Guide includes configuration information for networks using Open Shortest Path First (OSPF).

Anytime

The OmniSwitch CLI Reference Guide contains comprehensive information on all CLI commands supported by the switch. This guide includes syntax, default, usage, example, related CLI command, and CLI-to-MIB variable mapping information for all CLI commands supported by the switch. This guide can be consulted anytime during the configuration process to find detailed and specific information on each CLI command.

OmniSwitch 6850 Series Hardware Users Guide August 2007

page xiii

Related Documentation	About This Guide

Related Documentation

The following are the titles and descriptions of all the OmniSwitch 6850 Series user manuals:

•OmniSwitch 6850 Series Getting Started Guide

Describes the hardware and software procedures for getting an OmniSwitch 6850 Series switch up and running. Also provides information on fundamental aspects of OmniSwitch software and stacking architecture.

•OmniSwitch 6850 Series Hardware Users Guide

Detailed technical specifications and procedures for the OmniSwitch 6850 Series chassis and components. This manual also includes comprehensive information on assembling and managing stacked configurations.

•OmniSwitch CLI Reference Guide

Complete reference to all CLI commands supported on the OmniSwitch 6800, 6850, and 9000. Includes syntax definitions, default values, examples, usage guidelines and CLI-to-MIB variable mappings.

•OmniSwitch 6800/6850/9000 Switch Management Guide

Includes procedures for readying an individual switch for integration into a network. Topics include the software directory architecture, image rollback protections, authenticated switch access, managing switch files, system configuration, using SNMP, and using web management software (WebView).

•OmniSwitch 6800/6850/9000 Network Configuration Guide

Includes network configuration procedures and descriptive information on all the major software features and protocols included in the base software package. Chapters cover Layer 2 information (Ethernet and VLAN configuration), Layer 3 information (routing protocols, such as RIP), security options (authenticated VLANs), Quality of Service (QoS), and link aggregation.

•OmniSwitch 6800/6850/9000 Advanced Routing Configuration Guide

Includes network configuration procedures and descriptive information on all the software features and protocols included in the advanced routing software package. Chapters cover multicast routing (DVMRP and PIM-SM), and OSPF.

•OmniSwitch Transceivers Guide

Includes SFP and XFP transceiver specifications and product compatibility information.

•Technical Tips, Field Notices

Includes information published by Alcatel-Lucent’s Customer Support group.

•Release Notes

Includes critical Open Problem Re, feature exceptions, and other important information on the features supported in the current release and any limitations to their support.

page xiv

OmniSwitch 6850 Series Hardware Users Guide August 2007

About This Guide	User Manual CD

User Manual CD

All user guides for the OmniSwitch 6850 Series are included on the User Manual CD. This CD also includes user guides for other Alcatel-Lucent data enterprise products. In addition, it contains a standalone version of the on-line help system that is embedded in the OmniVista network management application.

Note. The latest user guides can be also found on our web site at

http://www.alcatel-lucent.com/enterprise/en/resource_library/user_manuals.html

Besides the OmniVista documentation, all documentation on the User Manual CD is in PDF format and requires the Adobe Acrobat Reader program for viewing. Acrobat Reader freeware is available at www.adobe.com.

Note. In order to take advantage of the documentation CD’s global search feature, it is recommended that you select the option for searching PDF files before downloading Acrobat Reader freeware.

To verify that you are using Acrobat Reader with the global search option, look for the following button in the toolbar:

Note. When printing pages from the documentation PDFs, de-select Fit to Page if it is selected in your print dialog. Otherwise pages may print with slightly smaller margins.

Technical Support

An Alcatel-Lucent service agreement brings your company the assurance of 7x24 no-excuses technical support. You’ll also receive regular software updates to maintain and maximize your Alcatel-Lucent product’s features and functionality and on-site hardware replacement through our global network of highly qualified service delivery partners. Additionally, with 24-hour-a-day access to Alcatel-Lucent’s Service and Support web page, you’ll be able to view and update any case (open or closed) that you have reported to Alcatel-Lucent’s technical support, open a new case or access helpful release notes, technical bulletins, and manuals. For more information on Alcatel-Lucent’s Service Programs, see our web page at service.esd.alcatel-lucent.com, call us at 1-800-995-2696, or email us at [e-mail].

OmniSwitch 6850 Series Hardware Users Guide August 2007

page xv

Technical Support	About This Guide

page xvi

OmniSwitch 6850 Series Hardware Users Guide August 2007

1 OmniSwitch 6850 Series

The OmniSwitch 6850 Series is an advanced fixed configuration family of Ethernet switches. These switches provide wire rate layer-2 forwarding and layer-3 routing with advanced services.

OmniSwitch 6850-24L

OmniSwitch 6850-48L

OmniSwitch 6850-P24L

OmniSwitch 6850-P48L

OmniSwitch 6850-U24X

OmniSwitch 6850-24

OmniSwitch 6850-48

OmniSwitch 6850-24X

OmniSwitch 6850-48X

OmniSwitch 6850-P24

OmniSwitch 6850-P48

OmniSwitch 6850-P24X

OmniSwitch 6850-P48X

OmniSwitch 6850 Series Hardware Users Guide August 2007

page 1-1

OmniSwitch 6850 Series

•The OmniSwitch 6850-24L (OS6850-24L) is a 24-port, 10/100 fixed stackable chassis with four combo fiber SFP connectors.

•The OmniSwitch 6850-48L (OS6850-48L) is a 48-port, 10/100 fixed stackable chassis with four combo fiber SFP connectors.

•The OmniSwitch 6850-P24L (OS6850-P24L) is a 24-port, 10/100 PoE fixed stackable chassis with four combo fiber SFP connectors.

•The OmniSwitch 6850-P48L (OS6850-P48L) is a 48-port, 10/100 PoE fixed stackable chassis with four combo fiber SFP connectors.

•The OmniSwitch 6850-U24X (OS6850-U24X) is a 24-port, 1000Base-X SFP fixed stackable chassis with two 10/100/1000 Base-T combo ports. This switch also includes two 10-Gigabit XFP connectors.

•The OmniSwitch 6850-24 (OS6850-24) is a 24-port, 10/100/1000 fixed stackable chassis with four combo fiber SFP connectors.

•The OmniSwitch 6850-48 (OS6850-48) is a 48-port, 10/100/1000 fixed stackable chassis with four combo fiber SFP connectors.

•The OmniSwitch 6850-24X (OS6850-24X) is a 24-port, 10/100/1000 fixed stackable chassis with four combo fiber SFP connectors.This switch also includes two 10-Gigabit XFP connectors.

•The OmniSwitch 6850-48X (OS6850-48X) is a 48-port, 10/100/1000 fixed stackable chassis. This switch also includes two 10-Gigabit XFP connectors.

•The OmniSwitch 6850-P24 (OS6850-P24) is a 24-port, 10/100/1000 PoE fixed stackable chassis with four combo fiber SFP connectors.

•The OmniSwitch 6850-P48 (OS6850-P48) is a 48-port, 10/100/1000 PoE fixed stackable chassis with four combo fiber SFP connectors.

•The OmniSwitch 6850-P24X (OS6850-P24X) is a 24-port, 10/100/1000 PoE fixed stackable chassis with four combo fiber SFP connectors. This switch also includes two 10-Gigabit XFP connectors.

•The OmniSwitch 6850-P48X (OS6850-P48X) is a 48-port, 10/100/1000 PoE fixed stackable chassis. This switch also includes two 10-Gigabit XFP connectors.

The OmniSwitch 6850 Series switches offer effective availability, resiliency, and security features and are ideal for the following network applications:

•Enterprise workgroups/LAN wiring closets

•Edge deployments and branch offices

•L3 aggregation/distribution layer switches in three-tier networks

•Small enterprise core switching

•Quality of service (QoS) for mission critical applications

•Data center server clusters

page 1-2

OmniSwitch 6850 Series Hardware Users Guide August 2007

OmniSwitch 6850 Series	Availability Features

Availability Features

The switch provides a broad variety of availability features. Availability features are hardware and software-based safeguards that help to prevent the loss of data flow in the unlikely event of a subsystem failure. In addition, some availability features allow users to maintain or replace hardware components without powering off the switch or interrupting switch operations. Combined, these features provide added resiliency and help to ensure that the switch or virtual chassis is consistently available for day-to-day network operations.

Hardware-related availability features include:

•Software Rollback

•Backup Power Supplies

•Hot Swapping

•Hardware Monitoring

Software Rollback

Software rollback (also referred to as image rollback) essentially allows the OmniSwitch 6850 Series switches to return to a prior “last known good” version of software in the event of a system software problem. The switch controls software rollback through its resilient directory structure design (i.e., /flash/ working and /flash/certified).

For detailed information on the software rollback feature, as well as the switch’s /flash/working and /flash/certified directories, refer to the “Managing CMM Directory Content” chapter in the OmniSwitch 6800/6850/9000 Series Switch Management Guide.

Backup Power Supplies

The OmniSwitch 6850 Series switches support an optional backup power supply. This power supply is connected to the rear of the unit. There is a power shelf provided with the unit that slides into the rear of the chassis and is used to hold the power supplies. It can hold 510W or 360W power supply or in case of non-PoE product switches 120W or 126W power supply. This provides redundant chassis power on a 1:1 basis.

Backup power supplies operate in active standby mode. If the primary power supply fails unexpectedly, the backup power supply automatically takes up the full power load without disrupting the switch.

Note. For more information on backup power supplies, refer to Chapter 2, “OmniSwitch 6850 Series Chassis and Hardware Components.”

OmniSwitch 6850 Series Hardware Users Guide August 2007

page 1-3

Availability Features	OmniSwitch 6850 Series

Hot Swapping

Hot swapping refers to the action of adding, removing, or replacing components without powering off switches or disrupting other components.This feature facilitates hardware upgrades and maintenance and allows users to easily replace components in the unlikely event of hardware failure.

The following hardware components can be hot swapped:

•Backup power supply

•Backup power supply connector cables

•SFPs

For instructions on hot swapping backup power supplies, refer to Chapter 2, “OmniSwitch 6850 Series Chassis and Hardware Components.” For instructions on hot swapping combo connector SFPs, refer to the instruction card provided with the SFP product.

Hardware Monitoring

Automatic Monitoring

Automatic monitoring refers to the switch’s built-in sensors that automatically monitor operations. If an error is detected (e.g., over-threshold temperature), the switch immediately sends a trap to the user. The trap is displayed on the console in the form of a text error message. (In the case of an over-threshold temperature condition, the chassis displays an amber TMP LED in addition to sending a trap.)

LEDs

LEDs, which provide visual status information, are provided on the chassis front panel. LEDs are used to indicate conditions such as hardware and software status, temperature errors, link integrity, data flow, etc. For detailed LED descriptions, refer to Chapter 2, “OmniSwitch 6850 Series Chassis and Hardware Components.”

User-Driven Monitoring

User-driven hardware monitoring refers to CLI commands that are entered by the user in order to access the current status of hardware components. The user enters “show” commands that output information to the console. Monitoring information for chassis components, such as the optional back up power supply, chassis temperature sensor, and chassis fans is provided in Chapter 2, “OmniSwitch 6850 Series Chassis and Hardware Components.” The show commands for all the features are described in detail in the

OmniSwitch CLI Reference Guide.

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OmniSwitch 6850 Series Hardware Users Guide August 2007

OmniSwitch 6850 Series	OmniSwitch 6850 Series Application Examples

OmniSwitch 6850 Series Application Examples

The following OmniSwitch 6850 Series applications are described below:

•Gigabit-to-the-desktop migration

•Server aggregation

•Layer 3 Aggregation/Distribution

•Small Enterprise core

Gigabit-to-the-Desktop Migration

The OmniSwitch 6850 Series switches provide a migration path to Gigabit on the edge of the LAN. For example:

10/100/1000 Layer 2+ Switching
	10/100/1000 Layer 3 Switching
OmniSwitch 6850
	OmniSwitch 6850
Layer 2+ 10/100 Switching
	OmniSwitch 6850
Core Layer
OmniSwitch 8800	OmniSwitch 8800

Application Example: Gigabit-to-the-Desktop Migration

OmniSwitch 6850 Series Hardware Users Guide August 2007

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OmniSwitch 6850 Series Application Examples	OmniSwitch 6850 Series

Server Aggregation

The OmniSwitch 6850 Series switch is a well-suited server aggregation switch, especially for space-constrained data centers, where the switch can be installed in the same rack as the servers. For example:

10/100/1000 Switching
10/100/1000 Switching	OmniSwitch 6850

Servers

Application Example: Server Aggregation

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OmniSwitch 6850 Series Hardware Users Guide August 2007

OmniSwitch 6850 Series	OmniSwitch 6850 Series Application Examples

Layer 3 Aggregation/Distribution

The OmniSwitch 6850 Series switches placed in the distribution layer of three-tier networks provide highcapacity, wire speed Layer 2 switching, Layer 3 routing, and intelligent services near the edge of the network. For example:

	10/100 Switching
	Gigabit
	Uplinks
OmniSwitch 6850	OmniSwitch 6850
Aggregation Layer
(L2/L3 Switching)
Multiple	10 Gig
	10 Gig
1 Gig
	10 Gig
	Core Layer
	(L3)

Application Example: Layer 3 Aggregation/Distribution

OmniSwitch 6850 Series Hardware Users Guide August 2007

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OmniSwitch 6850 Series Application Examples	OmniSwitch 6850 Series

Small Enterprise Core

With its high-speed switching capacity, supported Layer 3 routing protocols, advanced network services, and wire speed 10 Gigabit capability, the OmniSwitch 6850 Series provides effective core switching for smaller Enterprise networks (200-500 ports). For example:

10/100 layer 2 Switching		10/100 layer 2 Switching
10/100 layer 2 Switching	Gigabit Uplinks
OmniSwitch 6850	OmniSwitch 6850
Series Switch	Series Switch
Gigabit Layer 3 Switching		Servers
	Internet
	Router
		Internet

Application Example: Small Enterprise Core

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OmniSwitch 6850 Series Hardware Users Guide August 2007

2 OmniSwitch 6850 Series

Chassis and Hardware

Components

OmniSwitch 6850 Series switches are available in thirteen stackable chassis configurations as shown in the table below:

•	OmniSwitch 6850-24L	24-port 10/100
	(OS6850-24L)
•	OmniSwitch 6850-48L	48-port 10/100
	(OS6850-48L)
•	OmniSwitch 6850-P24L	24-port 10/100 Power over Ethernet (PoE)
	(OS6850-P24L)
•	OmniSwitch 6850-P48L	48-port 10/100 Power over Ethernet (PoE)
	(OS6850-P48L)
•	OmniSwitch 6850-U24X	24-port Gigabit SFP with 10 Gigabit uplinks
	(OS6850-U24X)
•	OmniSwitch 6850-24	24-port 10/100/1000
	(OS6850-24)
•	OmniSwitch 6850-48	48-port 10/100/1000
	(OS6850-48)
•	OmniSwitch 6850-24X	24-port with 10 Gigabit uplinks
	(OS6850-24X)
•	OmniSwitch 6850-48X	48-port with 10 Gigabit uplinks
	(OS6850-48X)
•	OmniSwitch 6850-P24	24-port 10/100/1000 Power over Ethernet (PoE)
	(OS6850-P24)
•	OmniSwitch 6850-P48	48-port 10/100/1000 Power over Ethernet (PoE)
	(OS6850-P48)
•	OmniSwitch 6850-P24X	24-port PoE with 10 Gigabit uplinks
	(OS6850-P24X)
•	OmniSwitch 6850-P48X	48-port PoE with 10 Gigabit uplinks
	(OS6850-P48X)

OmniSwitch 6850 Series Hardware Users Guide August 2007

page 2-1

OmniSwitch 6850 Series Chassis and Hardware Components

This chapter includes detailed information on these chassis types. Topics include:

•OmniSwitch 6850 Series chassis descriptions

•Technical specifications

•Switch mounting

•Booting OmniSwitch 6850 Series switches

•Power cords, console port, and pinout specifications

•OmniSwitch 6850 Series power supplies

•Monitoring the chassis

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OmniSwitch 6850 Series Hardware Users Guide August 2007

OmniSwitch 6850 Series Chassis and Hardware Components

OmniSwitch 6850-24L

OmniSwitch 6850-48L

OmniSwitch 6850-P24L

OmniSwitch 6850-P48L

OmniSwitch 6850-U24X

OmniSwitch 6850-24

OmniSwitch 6850-48

OmniSwitch 6850-24X

OmniSwitch 6850-48X

OmniSwitch 6850-P24

OmniSwitch 6850-P48

OmniSwitch 6850-P24X

OmniSwitch 6850-P48X

OmniSwitch 6850 Series Hardware Users Guide August 2007

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OmniSwitch 6850-24L	OmniSwitch 6850 Series Chassis and Hardware Components

OmniSwitch 6850-24L

The OmniSwitch 6850-24L is a stackable edge/workgroup switch offering 20 unshared 10/100Base-T, as well as four combo individually configurable to be 10/100/1000Base-T or 1000Base-X

high-speed connections.

The front panel of the OS6850-24L chassis contains the following major components:

•System status and slot indicator LEDs

•(20) unshared 10/100Base-T

•(4) shared combo 10/100/1000Base-T

•(4) Combo SFP connectors for 1000Base-X connections

•Console port (RJ-45)

•USB port (USB 2.0)

Note. USB 2.0 is not supported in this release.

Note. The 20 (non-combo) 10/100Base-T on the OmniSwitch 6850-24L can be upgraded to 10/100/1000Base-T. Please contact your Alcatel-Lucent representative for more information.

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OmniSwitch 6850 Series Hardware Users Guide August 2007

OmniSwitch 6850 Series Chassis and Hardware Components	OmniSwitch 6850-24L

Refer to the illustration below for more front panel information. For detailed LED descriptions, refer to page 2-54. For information on the chassis rear panel, refer to page 2-56.

USB Port

High speed USB 2.0 port, which can be used for quick upgrades.

Status and Slot Indicator LEDs

For information on the OS6850-24L’s status and slot indicator LEDs, refer to page 2-54.

OmniSwitch 6850-24L					OK		PRI PWR BPS
												1			2		3		4		5		6		7		8		9		10 11 12					13 14 15 16 17 18 19 20 21 22 23 24
				USB
																																																													21		22		23		24
	Console																																																													CLASS 1 LASER PRODUCT

Console Port

The OS6850-24L front panel provides one RJ-45 port for console connections. Console connections are used by network administrators for switch management. This female RJ-45 connector provides a DTE console connection.

10/100 Mbps and 10/100/1000Mbps

The OS6850-24L provides 20 fixed 10/100BaseT non-combo (1–20) and 4 fixed

10/100/1000BaseT combo 21–24). These are auto-sensing and auto-MDIX and use RJ-45 connectors.

Combo SFP

The OS6850-24L provides four combo SFP connectors for 1000Base-X highspeed connections.

By default, when an SFP is installed in a combo port, it takes over the port number of the corresponding RJ-45 Ethernet port. In other words, if an SFP is installed in the slot labeled 24, Ethernet port 24 would no longer be available and cannot be used for 10/100/1000 traffic. This default setting is referred to as “preferred fiber.” Refer to “Configuring Ethernet” in

the Network Configuration Guide for detailed information, including steps for configuring combo port settings.

OmniSwitch 6850-24L Front Panel

OmniSwitch 6850 Series Hardware Users Guide August 2007

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OmniSwitch 6850-24L OmniSwitch 6850 Series Chassis and Hardware Components

OS6850-24L Specifications

Total unshared	20
10/100Base-T per switch (1–20)
Total shared 10/100/1000Base-T	4
combo per switch
(21–24)
Total combo 1000Base-X	4
combo SFP connectors per
switch (21–24)
Total 10/100Base-T per stack	160 (stack of eight switches)
Total combo SFP connectors per	32 (stack of eight switches)
stack
Power	126/120W (AC/DC) power supply
Flash memory size	64 MB
RAM memory size	256 MB SDRAM
Overall Width (rack-mount	19 inches, approx.
flanges included)
Chassis Width (rack-mount	17.5 inches
flanges not included)
Height	1.73 inches
Height (rack units)	1 RU
Chassis Depth	10.5 inches without power supplies installed;
	16.75 inches with power supplies installed
Weight	14 lbs (6.24 Kg), approx.
Humidity	5% to 90% Relative Humidity (Operating)
	0% to 95% Relative Humidity (Storage)
Operating Temperature	0 to 45 degrees, Celsius
Storage Temperature	-20 to 70 degrees, Celsius
Altitude	Operating altitude: sea level at 40 degrees, Celsius and
	10000 feet at 0 degrees, Celsius
	Storage altitude: sea level to 40000 feet
Standards supported	802.3z, 802.3ab, 1000Base-T, IEEE 802.3u
Data rate (RJ-45)	10 or 100 Mbps (full or half duplex)
	1 Gigabit per second (full duplex)
Data rate (SFP)	1 Gigabit per second (full duplex)
Maximum frame size	9216 bytes
Connections supported	10/100/1000Base-T and 1000Base-X
Cable supported	10BaseT: unshielded twisted-pair (UTP)
(RJ-45)	100BaseTX: unshielded twisted-pair (UTP), Category 5, EIA/TIA 568
	or shielded twisted-pair (STP), Category 5, 100 ohm
	1000BaseT: unshielded twisted-pair (UTP), Category 5e

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OmniSwitch 6850 Series Hardware Users Guide August 2007