Ruckus Wireless ICX 7450, ICX 7250, ICX 7750 Configuration Manual

CONFIGURATION GUIDE

Ruckus FastIron Stacking Conﬁguration Guide, 08.0.40b

Supporting FastIron OS 08.0.40b

Part Number: 53-1003910-11 Publication Date: 15 February 2018

No part of this content may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from Ruckus Networks (“Ruckus”). Ruckus reserves the right to revise or change this content from time to time without obligation on the part of Ruckus to provide notiﬁcation of such revision or change.

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Trademarks

The Ruckus, Ruckus Wireless, Ruckus logo, Big Dog design, BeamFlex, ChannelFly, EdgeIron, FastIron, HyperEdge, ICX, IronPoint, OPENG, Xclaim, and ZoneFlex and trademarks are registered in the U.S. and other countries. Ruckus Networks, Dynamic PSK, MediaFlex, FlexMaster, Simply Better Wireless, SmartCast, SmartCell, SmartMesh, SpeedFlex, Unleashed, ZoneDirector and ZoneFlex are Ruckus trademarks worldwide. Other names and brands mentioned in these materials may be claimed as the property of others.

Wi-Fi Alliance®, Wi-Fi®, the Wi-Fi logo, the Wi-Fi CERTIFIED logo, Wi-Fi Protected Access® (WPA), the Wi-Fi Protected Setup logo, and WMM® are registered trademarks of Wi-Fi Alliance. Wi-Fi Protected Setup™, Wi-Fi Multimedia™, and WPA2™ are trademarks of Wi-Fi Alliance.

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Contents

Preface..........................................................................................................................................................................................................9

Document Conventions..........................................................................................................................................................................9

Notes, Cautions, and Warnings.......................................................................................................................................................9

Command Syntax Conventions..............................................................................................................................................................9

Document Feedback............................................................................................................................................................................10

Ruckus Product Documentation Resources......................................................................................................................................... 10

Online Training Resources.................................................................................................................................................................... 10

Contacting Ruckus Customer Services and Support............................................................................................................................11

What Support Do I Need?.............................................................................................................................................................11

Open a Case.................................................................................................................................................................................11

Self-Service Resources................................................................................................................................................................. 11

About This Guide........................................................................................................................................................................................ 13

Supported hardware............................................................................................................................................................................ 13

What’s new in this document................................................................................................................................................................13

How command information is presented in this guide...........................................................................................................................14

Stacking Overview.......................................................................................................................................................................................15

Traditional stacking...............................................................................................................................................................................15

Network management and stack conﬁguration............................................................................................................................. 16

Switching and routing advantages................................................................................................................................................ 16

Campus Fabric.................................................................................................................................................................................... 16

Brocade stackable models...................................................................................................................................................................18

Brocade traditional stacking terminology.............................................................................................................................................. 19

Stack unit roles............................................................................................................................................................................. 19

Stacking terms..............................................................................................................................................................................19

Building a Stack.......................................................................................................................................................................................... 21

Planning to build a traditional stack...................................................................................................................................................... 21

Software requirements..................................................................................................................................................................21

Traditional stack requirements.......................................................................................................................................................21

Brocade traditional stacking topologies.........................................................................................................................................21

FastIron stacking distances and optics by device..........................................................................................................................21

Traditional stacking conﬁguration guidelines.................................................................................................................................. 25

Planning to build a stack with 802.1br switch port extender capability..................................................................................................25

Traditional stack construction methods................................................................................................................................................ 26

The secure-setup utility................................................................................................................................................................. 26

Using secure-setup to conﬁgure a traditional stack in a ring topology............................................................................................27

Scenario 2 - Automatically conﬁguring a three-member traditional stack in a ring topology........................................................... 35

Scenario 3 - Manually conﬁguring a three member traditional stack in a ring topology...................................................................39

Verifying a traditional stack conﬁguration.............................................................................................................................................. 40

Displaying information on stack connections........................................................................................................................................ 42

Traditional Stacking by Device..................................................................................................................................................................... 45

ICX 7250 stack conﬁguration overview.................................................................................................................................................45

ICX 7250 stacking topologies........................................................................................................................................................46

ICX 7250 stacking conﬁguration notes.......................................................................................................................................... 47

Reconﬁguring ICX 7250 1-Gbps ports as 10-Gbps ports.............................................................................................................. 48

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Changing default ports on the ICX 7250........................................................................................................................................48

ICX 7250 trunk conﬁguration.........................................................................................................................................................48

ICX 7250 secure-setup example................................................................................................................................................... 49

Displaying basic information for an ICX 7250 stack....................................................................................................................... 51

Displaying detailed information for an ICX 7250 stack................................................................................................................... 52

ICX 7450 stack conﬁguration overview.................................................................................................................................................53

ICX 7450 stacking topologies........................................................................................................................................................54

ICX 7450 stacking conﬁguration notes.......................................................................................................................................... 57

Conﬁguring 10-Gbps stacking ports on the ICX 7450................................................................................................................... 58

Creating stacking trunks on the ICX 7450..................................................................................................................................... 60

ICX 7450 secure-setup examples................................................................................................................................................. 62

Displaying basic information for an ICX 7450 stack....................................................................................................................... 71

Displaying details for an ICX 7450 stack........................................................................................................................................72

ICX 7750 stack conﬁguration overview.................................................................................................................................................73

ICX 7750 stacking topologies........................................................................................................................................................74

Installing the ICX 7750 in a remote stack.......................................................................................................................................78

ICX 7750 stacking conﬁguration notes.......................................................................................................................................... 81

ICX 7750 secure-setup example................................................................................................................................................... 82

ICX 7750 trunk formation during secure-setup.............................................................................................................................. 82

Removing stacking ports from an ICX 7750.................................................................................................................................. 86

Creating an ICX 7750 stacking trunk in a production environment.................................................................................................86

Converting an ICX 7750 trunk to a port connection in a live stack................................................................................................. 87

Restoring a data port from an ICX 7750 trunk in a live stack......................................................................................................... 87

Displaying basic information for an ICX 7750 stack....................................................................................................................... 88

Displaying details for an ICX 7750 stack........................................................................................................................................88

Hitless Stacking...........................................................................................................................................................................................91

Hitless stacking overview..................................................................................................................................................................... 91

Hitless stacking behavior......................................................................................................................................................................91

Supported hitless stacking events ....................................................................................................................................................... 93

Non-supported hitless stacking events.................................................................................................................................................93

Supported hitless stacking protocols and services............................................................................................................................... 93

Hitless stacking conﬁguration notes and feature limitations...................................................................................................................95

What happens during a hitless stacking switchover or failover..............................................................................................................95

Real-time synchronization among all units in a stack..................................................................................................................... 95

Standby controller role in hitless stacking............................................................................................................................................. 96

Standby controller election............................................................................................................................................................97

Runtime conﬁguration mismatch................................................................................................................................................... 97

Support during stack formation, stack merge, and stack split.............................................................................................................. 98

Hitless stacking failover...................................................................................................................................................................... 100

Enabling hitless stacking failover................................................................................................................................................. 100

Hitless stacking failover example.................................................................................................................................................101

Hitless stacking switchover................................................................................................................................................................ 101

Executing a hitless stacking switchover.......................................................................................................................................102

Hitless stacking switchover examples......................................................................................................................................... 102

Displaying information about hitless stacking......................................................................................................................................106

Displaying information about stack failover.................................................................................................................................. 107

Displaying hitless stacking status................................................................................................................................................ 107

Displaying pending device roles.................................................................................................................................................. 107

Displaying information about link synchronization status..............................................................................................................107

Syslog messages for hitless stacking failover and switchover............................................................................................................. 108

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Traditional Stack Management.................................................................................................................................................................. 111

Managing a traditional stack through one IP address..........................................................................................................................111

Enabling or disabling stacking mode.................................................................................................................................................. 111

Disabling stacking mode............................................................................................................................................................. 112

Traditional stack unit identiﬁcation .............................................................................................................................................. 112

Controlling the stack through the CLI................................................................................................................................................. 112

Logging in through the console port............................................................................................................................................113

CLI command syntax for stack units........................................................................................................................................... 113

Traditional stack CLI commands................................................................................................................................................. 114

Conﬁguring default ports on FastIron devices.....................................................................................................................................115

Traditional stack management MAC address......................................................................................................................................115

Manually allocating the traditional stack MAC address................................................................................................................ 116

Traditional stack device roles and elections........................................................................................................................................ 117

Active controller.......................................................................................................................................................................... 117

Standby controller.......................................................................................................................................................................118

Bootup role.................................................................................................................................................................................118

Active controller and standby controller elections........................................................................................................................ 118

Active controller and standby controller resets............................................................................................................................ 119

Standby controller selection based on priority conﬁguration........................................................................................................ 120

Standby controller election criteria...............................................................................................................................................120

Traditional stack unit priority............................................................................................................................................................... 121

Changing the priority of a stack unit............................................................................................................................................ 122

Traditional stack software images.......................................................................................................................................................122

Conﬁrming traditional stack software versions.............................................................................................................................122

Stack mismatches..............................................................................................................................................................................122

Advanced feature privilege mismatch.......................................................................................................................................... 123

Minor mismatch for stack units................................................................................................................................................... 123

Major mismatch for stack units................................................................................................................................................... 124

Conﬁguration mismatch for stack units....................................................................................................................................... 124

Memory allocation failure.............................................................................................................................................................125

Auto Image Copy for stack units................................................................................................................................................. 126

Copying the ﬂash image to a stack unit from the active controller................................................................................................127

Conﬁguring stacking trunks in a live environment................................................................................................................................127

Displaying multi-trunk stacking conﬁguration...............................................................................................................................128

Error messages encountered when conﬁguring a stacking trunk................................................................................................. 128

Adding, removing, or replacing units in a traditional stack...................................................................................................................129

Installing a new unit in a traditional stack using secure-setup...................................................................................................... 129

Installing a new unit using static conﬁguration............................................................................................................................. 129

Removing a unit from a traditional stack......................................................................................................................................130

Replacing traditional stack units.................................................................................................................................................. 130

Moving a unit to another stack.................................................................................................................................................... 131

Removing an active controller from a powered stack...................................................................................................................131

Renumbering stack units....................................................................................................................................................................131

Conﬁguration notes for renumbering stack units .........................................................................................................................132

Reloading a stack unit........................................................................................................................................................................132

Managing traditional stack partitioning................................................................................................................................................133

Merging traditional stacks.................................................................................................................................................................. 133

Unconﬁguring a traditional stack........................................................................................................................................................ 134

Syslog, SNMP, and traps for stack units............................................................................................................................................. 135

Conﬁguring SNMP for a traditional stack.....................................................................................................................................135

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SNMP engine IDs for stackable devices...................................................................................................................................... 135

Displaying traditional stack information...............................................................................................................................................135

Displaying stacking topology.......................................................................................................................................................136

Displaying running conﬁguration information................................................................................................................................136

How the show running-conﬁg command displays conﬁgured stacking ports...............................................................................137

Displaying software version information.......................................................................................................................................138

Displaying traditional stack ﬂash information................................................................................................................................139

Displaying traditional stack memory information.......................................................................................................................... 140

Displaying traditional stack chassis information .......................................................................................................................... 140

Displaying stack module information........................................................................................................................................... 142

Displaying general or detailed information about stack members.................................................................................................142

Displaying IPC statistics for a stack.............................................................................................................................................144

Displaying reliable IPC statistics for stack units............................................................................................................................145

Displaying information about stack neighbors............................................................................................................................. 146

Displaying stack port information................................................................................................................................................ 146

Displaying stacking port statistics................................................................................................................................................147

Displaying stacking port interface information..............................................................................................................................147

MIB support for traditional stack conﬁgurations..................................................................................................................................148

Traditional Stack Troubleshooting.............................................................................................................................................................. 149

Problems commonly diagnosed with stack formation.........................................................................................................................149

Background problem diagnosis..........................................................................................................................................................149

Manually triggering stack diagnosis.............................................................................................................................................149

Suppressing background stack diagnostic warnings...................................................................................................................150

Troubleshooting an unsuccessful stack build......................................................................................................................................150

Troubleshooting secure-setup............................................................................................................................................................ 152

Troubleshooting unit replacement issues............................................................................................................................................ 153

Checking hardware after an upgrade failure........................................................................................................................................153

Troubleshooting image copy issues....................................................................................................................................................154

Conﬁguration, startup conﬁguration ﬁles, and stacking ﬂash...............................................................................................................154

Stacking unit role transition considerations.........................................................................................................................................155

Port down and aging..........................................................................................................................................................................155

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Preface

• Document Conventions.............................................................................................................................................9

• Command Syntax Conventions................................................................................................................................. 9

• Document Feedback...............................................................................................................................................10

• Ruckus Product Documentation Resources............................................................................................................ 10

• Online Training Resources....................................................................................................................................... 10

• Contacting Ruckus Customer Services and Support............................................................................................... 11

Document Conventions

The following tables list the text and notice conventions that are used throughout this guide.

TABLE 1 Text conventions

Convention Description Example

monospace

bold User interface (UI) components such

italics

Identiﬁes command syntax examples.

as screen or page names, keyboard keys, software buttons, and ﬁeld names

Publication titles Refer to the

device(config)# interface ethernet 1/1/6

On the Start menu, click All Programs.

Ruckus Small Cell Release Notes

for more information

Notes, Cautions, and Warnings

Notes, cautions, and warning statements may be used in this document. They are listed in the order of increasing severity of potential hazards.

NOTE

A NOTE provides a tip, guidance, or advice, emphasizes important information, or provides a reference to related information.

CAUTION

A CAUTION statement alerts you to situations that can be potentially hazardous to you or cause damage to hardware, ﬁrmware,

software, or data.

DANGER

A DANGER statement indicates conditions or situations that can be potentially lethal or extremely hazardous to you. Safety labels

are also attached directly to products to warn of these conditions or situations.

Command Syntax Conventions

Bold and italic text identify command syntax components. Delimiters and operators deﬁne groupings of parameters and their logical relationships.

Convention

bold text Identiﬁes command names, keywords, and command options.

Description

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Preface Document Feedback

Convention Description

italic

text Identiﬁes a variable.

[ ]

{ x | y | z } A choice of required parameters is enclosed in curly brackets separated by vertical bars. You must select

x | y A vertical bar separates mutually exclusive elements.

< >

... Repeat the previous element, for example,

\ Indicates a “soft” line break in command examples. If a backslash separates two lines of a command input,

Syntax components displayed within square brackets are optional.

Default responses to system prompts are enclosed in square brackets.

one of the options.

Nonprinting characters, for example, passwords, are enclosed in angle brackets.

member[member

enter the entire command at the prompt without the backslash.

...].

Document Feedback

Ruckus is interested in improving its documentation and welcomes your comments and suggestions.

You can email your comments to Ruckus at: docs@ruckuswireless.com

When contacting us, please include the following information:

• Document title and release number

• Document part number (on the cover page)

• Page number (if appropriate)

• For example:

– Ruckus Small Cell Alarms Guide SC Release 1.3

– Part number: 800-71306-001

– Page 88

Ruckus Product Documentation Resources

Visit the Ruckus website to locate related documentation for your product and additional Ruckus resources.

Release Notes and other user documentation are available at https://support.ruckuswireless.com/documents. You can locate documentation by product or perform a text search. Access to Release Notes requires an active support contract and Ruckus Support Portal user account. Other technical documentation content is available without logging into the Ruckus Support Portal.

White papers, data sheets, and other product documentation are available at https://www.ruckuswireless.com.

Online Training Resources

To access a variety of online Ruckus training modules, including free introductory courses to wireless networking essentials, site surveys, and Ruckus products, visit the Ruckus Training Portal at https://training.ruckuswireless.com.

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Preface

Contacting Ruckus Customer Services and Support

The Customer Services and Support (CSS) organization is available to provide assistance to customers with active warranties on their Ruckus Networks products, and customers and partners with active support contracts.

For product support information and details on contacting the Support Team, go directly to the Support Portal using https://

support.ruckuswireless.com, or go to https://www.ruckuswireless.com and select Support.

What Support Do I Need?

Technical issues are usually described in terms of priority (or severity). To determine if you need to call and open a case or access the selfservice resources use the following criteria:

• Priority 1 (P1)—Critical. Network or service is down and business is impacted. No known workaround. Go to the Open a Case

section.

• Priority 2 (P2)—High. Network or service is impacted, but not down. Business impact may be high. Workaround may be available.

Go to the Open a Case section.

• Priority 3 (P3)—Medium. Network or service is moderately impacted, but most business remains functional. Go to the Self-Service

Resources section.

• Priority 4 (P4)—Low. Request for information, product documentation, or product enhancements. Go to the Self-Service

Resources section.

Open a Case

When your entire network is down (P1), or severely impacted (P2), call the appropriate telephone number listed below to get help:

• Continental United States: 1-855-782-5871

• Canada: 1-855-782-5871

• Europe, Middle East, Africa, and Asia Paciﬁc, toll-free numbers are available at https://support.ruckuswireless.com/contact-us and

Live Chat is also available.

Self-Service Resources

The Support Portal at https://support.ruckuswireless.com/contact-us offers a number of tools to help you to research and resolve problems with your Ruckus products, including:

• Technical Documentation—https://support.ruckuswireless.com/documents

• Community Forums—https://forums.ruckuswireless.com/ruckuswireless/categories

• Knowledge Base Articles—https://support.ruckuswireless.com/answers

• Software Downloads and Release Notes—https://support.ruckuswireless.com/software

• Security Bulletins—https://support.ruckuswireless.com/security

Using these resources will help you to resolve some issues, and will provide TAC with additional data from your troubleshooting analysis if you still require assistance through a support case or RMA. If you still require help, open and manage your case at https://

support.ruckuswireless.com/case_management

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About This Guide

• Supported hardware................................................................................................................................................13

• What’s new in this document................................................................................................................................... 13

• How command information is presented in this guide..............................................................................................14

Supported hardware

The following devices from the Ruckus FastIron product family support stacking in FastIron release 08.0.40 and later releases:

• Ruckus ICX 7250 Series (ICX 7250)

• Ruckus ICX 7450 Series (ICX 7450)

• Ruckus ICX 7750 Series (ICX 7750)

For information about the speciﬁc models and modules supported in a product family, refer to the hardware installation guide for that product family.

What’s new in this document

The following tables provide descriptions of new information added to this guide for FastIron software release 08.0.40, 08.0.40a, and

08.0.40b.

NOTE

Support information for LR4 optics has been revised for all FastIron 08.0.40 releases and above to indicate that ICX 7450 devices

support LR4 optics for stacking. Refer to the updated section FastIron stacking distances and optics by device on page 21. The

change ﬁrst appears in the

TABLE 2 Summary of enhancements in FastIron release 8.0.40b

Feature Description Location

ICX 7750 simultaneous front and rear stacking ICX 7750 module 2 and module 3 can be used for

TABLE 3 Summary of enhancements in FastIron release 8.0.40a

Feature Description Location

Long-distance stacking capability 40-Gbps eSR4 optics are available on the ICX 7750

TABLE 4 Summary of enhancements in FastIron release 8.0.40

Feature Description Location

Long-distance stacking capability More models now support stacking distances of up

Brocade FastIron Stacking Conﬁguration Guide, release 08.0.40b

Refer to ICX 7750 stack conﬁguration overview

stacking simultaneously.

and ICX 7450. A 40-Gbps bi-directional optic option is available for the ICX 7750. The bi-directional option is available for data-only use on the ICX 7450 as well. A table showing 4 X 10-Gbps LR optic options for the ICX 7450 has also been added.

to 10 KM using LR4 optics.

on page 73.

Refer to FastIron stacking distances and optics by

device on page 21.

Refer to FastIron stacking distances and optics by

device on page 21.

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About This Guide How command information is presented in this guide

TABLE 4 Summary of enhancements in FastIron release 8.0.40 (continued)

Feature Description Location

12-port stacking on the ICX 7750 Two six-port trunks, one on the front and one on the

rear of the ICX 7750, can be conﬁgured simultaneously.

Hitless stacking merge enhancements With hitless failover enabled, active controller and

standby controller elections for two-member stacks are based on slightly different criteria. The changes reduce trafﬁc disruption during a reset and better support two-unit stacking.

ICX 7450-32P The new ICX 7450-32P model supports 1 Gbps/10

Mbps/100 Mbps on the ﬁrst 24 ports as other ICX 7450 models. On ports 25 through 32, the new model supports 2.5 Gbps/1 Gbps/100Mbps operation.

Switch Port Extender (SPX) (also known as Campus Fabric)

SPX conﬁgures an ICX 7750 in a traditional stack to serve as a control bridge (CB) for attached ICX 7450 units conﬁgured as port extenders (PEs). This makes network management from a single point possible and extends port capacity to 768 PE ports.

Refer to ICX 7750 stack conﬁguration overview on page 73.

Refer to Active controller and standby controller

elections on page 118, Traditional stack unit priority on page 121, and Hitless stacking behavior on page 91.

Related changes occur throughout the guide. For detailed information on the new hardware, refer to the

Brocade ICX 7450 Switch Hardware

Installation Guide

Refer to Campus Fabric on page 16 and

Planning to build a stack with 802.1br switch port extender capability on page 25 for an

introduction. Refer to the new

Switch Port Extender Conﬁguration Guide

information on topology and conﬁguration.

Brocade FastIron

for

How command information is presented in this guide

For all new content supported in FastIron release 08.0.20 and later, command information is documented in a standalone command reference guide.

In the

Ruckus FastIron Command Reference

parameters, mode, usage guidelines, examples, and command history.

NOTE

Many commands introduced before FastIron release 08.0.20 are also included in the guide.

, the command pages are in alphabetical order and follow a standard format to present syntax,

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Stacking Overview

• Traditional stacking..................................................................................................................................................15

• Campus Fabric........................................................................................................................................................16

• Brocade stackable models...................................................................................................................................... 18

• Brocade traditional stacking terminology................................................................................................................. 19

Traditional stacking

A stack is a group of devices that operate as a single chassis.

A Brocade traditional stack contains from two to 12 units conﬁgured in a ring or linear topology. The units in a traditional stack are from the same model family; that is, a traditional stack contains only ICX 7250, ICX 7450, or ICX 7750 units.

The members of a traditional stack may be located together. For example, Top-of-rack switches can form a stack that acts as a single switch to manage data center access. Stack members can be physically separated, and the distance between stacking members depends on the type of connector cables used.

Certain ﬁber optic options increase the potential distance between stacks, which allows members of the same stack to reside in different wiring closets, on different ﬂoors of one building, or in different buildings across the campus as illustrated in the following ﬁgure. Refer to

FastIron stacking distances and optics by device on page 21 for more information.

Brocade stackable devices are connected either through dedicated stacking ports or through ports that can be conﬁgured for either stacking or data. The location of stacking ports and conﬁguration options differ by device type. Refer to the section on each device type for more information.

FIGURE 1 Distributed campus stacking topology

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Stacking Overview Campus Fabric

Network management and stack conﬁguration

Even when all the switches within a stack are physically distributed, you can manage them as a single entity, enabling one-touch conﬁguration changes via a single IP address.

The active controller manages the other stack units. It maintains the information database for all stack members and downloads software images as needed to all stack units. Each stack also has a standby controller for stack redundancy, and the stack can fail over seamlessly to the standby.

Conﬁguring the stack through the stack secure-setup utility is straightforward and secure. Custom conﬁguration can be combined with automated setup if, for example, you want to add units, move stacking ports, create trunks, or transform a default stacking port into a data uplink port.

Switching and routing advantages

Packet switching between ports on stack units is handled by the hardware. All protocols operate with traditional stacking in the same way as on a chassis system.

You can use stack connections to link distributed switches instead of standard inter-switch links with Layer 2 Spanning Tree Protocol (STP) or Layer 3 routing. Using stack connections has signiﬁcant advantages:

• Layer 2 simplicity. Stack links do not need to be considered as part of the overall network topology, which means that they can be

used to provide resiliency, and Layer 3 routing is not needed to manage trafﬁc ﬂows.

• No closed links. Because the stack links are internal to the switches, they are not seen as part of a Layer 2 network. This means

that all links can remain open and can be used to carry trafﬁc simultaneously, maximizing throughput.

• Fast failover. The rapid detection and recovery techniques used on stack links mean that failure of a link or a switch results in

hitless failover, with no impact on user services.

The next section describes Switch Port Extender technology, which is based on an ICX 7750 core stack. Refer to the

Switch Port Extender Conﬁguration Guide

for more information.

Brocade FastIron

Campus Fabric

Campus Fabric is sometimes referred to as Switch Port Extender (SPX).

Campus Fabric creates a more scalable architecture based on IEEE 802.1BR standards. Brocade Campus Fabric architecture adds Brocade ICX 7450 or ICX 7250 devices conﬁgured as port extenders (PEs), or PE units, to a set of Brocade ICX 7750 stack units conﬁgured as the control bridge. The ICX 7750 control bridge (CB) provides a single point of management for the extended network. Active and standby controller functions are retained and continue to provide hitless recovery as well as extended administrative functions. Campus Fabric greatly increases the number of access devices that the network can support. The distributed CB at the center of Campus Fabric architecture manages PE units and hundreds to thousands of ports at the network edge.

PE units are standards-based devices. Typically lower in cost, PE units rely on the CB for most network functions. As the network expands, new PE units can be detected and added to the network automatically using deﬁned Campus Fabric communication protocols. PE units also inherit Premium-license features from the CB, which further reduces cost.

Campus Fabric architecture simpliﬁes network management by unifying core, aggregation, and access functions. As illustrated in the following ﬁgure, a core stack (distributed chassis) serving as the CB connects to downstream Campus Fabric (PE) units that aggregate large numbers of access devices.

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FIGURE 2 Campus Fabric domain build-out from an ICX 7750 CB stack

Stacking Overview

Campus Fabric

The following ﬁgure depicts three separate campuses, each with its own Campus Fabric domain, interconnected with a high-speed backbone.

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Stacking Overview Brocade stackable models

FIGURE 3 Distributed campus network formed from connected Campus Fabric domains

Brocade stackable models

All ICX 7450 and ICX 7750 devices and some ICX 7250 devices can be members of a Brocade traditional stack. ICX 7750 devices installed in a traditional stack can also be conﬁgured as an 802.1br control bridge that manages ICX 7450 devices conﬁgured as port extender (PE) units. Refer to the

Refer to the following sections for information on the ICX 7250:

• ICX 7250 stacking topologies on page 46.

• ICX 7250 stack conﬁguration overview on page 45.

Refer to the following sections for information on the ICX 7450:

• ICX 7450 stacking topologies on page 54.

• ICX 7450 stack conﬁguration overview on page 53

• Planning to build a stack with 802.1br switch port extender capability on page 25.

Refer to the following sections for information on the ICX 7750:

• ICX 7750 stacking topologies on page 74.

• Conﬁguring an ICX 7750 traditional stack on page 73

• Planning to build a stack with 802.1br switch port extender capability on page 25.

For information about physical installation of each type of device, refer to the appropriate hardware installation guide.

Brocade FastIron Switch Port Extender Conﬁguration Guide

for information on 802.1br conﬁguration.

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Stacking Overview

Brocade traditional stacking terminology

Certain terms and roles speciﬁc to stacking are used throughout this guide. This section describes the roles stack units may assume as well as terms key to understanding stacking.

NOTE

Refer to the

extender (SPX) capability.

Stack unit roles

• Active controller - Handles stack management and conﬁgures all system- and interface-level features.

– Future active controller - The unit that will take over as active controller after the next reload, if its priority has been changed to

• Standby controller - The stack member with the highest priority after the active controller. The standby controller takes over if the

current active controller fails.

• Stack member - A unit functioning in the stack in a capacity other than active controller or standby controller.

• Stack unit - Any device functioning within the stack, including the active controller and standby controller.

– Upstream stack unit - An upstream unit is connected to the ﬁrst stacking port on the active controller. (The left port as you

– Downstream stack unit - A downstream unit is connected to the second stacking port on the active controller. (The right port

Brocade FastIron Switch Port Extender Conﬁguration Guide

the highest priority. When a priority for a stack unit is changed to be higher than the existing active controller, the takeover does not occur immediately to prevent disruptions in stack operation.

face the stacking ports.)

as you face the stacking ports.)

for terms speciﬁc to IEEE 802.1br and switch port

NOTE

The terms "upstream port" and "downstream port" have special meanings in an 802.1br SPX conﬁguration. Refer to the

FastIron Switch Port Extender Conﬁguration Guide

for more information.

Stacking terms

• Bootup role - The role a unit takes during the boot sequence. This role can be standalone, active controller, standby controller, or

stack member. The active controller or a standalone unit can access the full range of the CLI. Until a stack is formed, the local

consoles on the standby controller and stack members provide access to a limited form of the CLI, such as the show stack and a

few debug commands. When the stack is formed, all local consoles are directed to the active controller, which can access the

entire CLI. The last line of output from the show version command indicates the role of a unit (except for standalone units) as

shown in the following example:

My stack unit ID = 1, bootup role = active

• Clean unit - A unit that contains no startup ﬂash conﬁguration or runtime conﬁguration. To erase old conﬁguration information,

enter the erase startup-cong command and reset the unit.

• Control path - A path across stacking links dedicated to carrying control trafﬁc such as commands to program hardware or

software image data for upgrades. A stack unit must join the control path to operate fully in the stack.

• Default ports - FastIron devices use the default-ports command to deﬁne stacking port candidates.

• Dynamic conﬁguration - A unit conﬁguration that is dynamically learned by a new stack unit from the active controller. A dynamic

conﬁguration disappears when the unit leaves the stack.

• Interprocessor Communications (IPC) - The process by which proprietary packets are exchanged between stack unit CPUs.

Brocade

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Stacking Overview Brocade traditional stacking terminology

• IronStack - A set of Ruckus stackable units (maximum of twelve) and their connected stacking links so that all units can be

accessed through their common connections. A single unit can manage the entire stack, and conﬁgurable entities, such as VLANs

and trunk groups, can have members on multiple stack units.

• Non-Functioning stack unit - A stack unit that is recognized as a stack member, and is communicating with the active controller

over the Control Path, but is in a non-functioning state. A non-functioning stack unit will drop or discard trafﬁc from non-stacked

ports. This may be caused by an image or conﬁguration mismatch.

• Reserved / provisional unit - A unit conﬁguration number that has no physical unit associated with it.

• Secure-setup - A software utility that establishes a secure stack.

• Sequential connection - Stack unit IDs, beginning with the active controller, are sequential. For example, 1, 3, 4, 6, 7 is sequential

if active controller is 1. 1, 7, 6, 4, 3 are non-sequential in a linear topology, but become sequential in a ring topology when counted

from the other direction as: 1, 3, 4, 6, 7. Gaps in numbering are allowed.

• Stack path - A data path formed across the stacking links to determine the set of stack members that are present in the stack

topology, and their locations in the stack.

• Stack slot - A

slot

in a stack is synonymous with a

line model

in a chassis.

• Stack topology - A contiguously-connected set of stack units in an IronStack that are currently communicating with each other. All

units that are present in the stack topology appear in output from the show stack command.

• Stacking link - A cable that connects a stacking port on one unit to a stacking port on another unit.

• Stacking port - A physical interface on a stack unit that connects a stacking link. Stacking ports are point-to-point links that

exchange proprietary packets. Stacking ports cannot be conﬁgured for any other purpose while operating as stacking ports. The

number of available stacking ports depends on the platform. Some ports can be conﬁgured as either stacking ports or regular

data ports. Refer to the hardware installation guide for the speciﬁc device for more information.

• Standalone unit - A unit that is not enabled for stacking, or an active controller without any standby controller or stack members.

• Static conﬁguration - A conﬁguration that remains in the database of the active controller even if the unit it refers to is removed

from the stack. Static conﬁgurations are derived from the startup conﬁguration ﬁle during the boot sequence, are manually

entered, or are converted from dynamic conﬁgurations after a write memory command is issued.

• Trunked stacking port (trunk) - A trunk consists of multiple stacking ports and is treated as one logical link. It provides more

bandwidth and better resilience than individually connected ports.

• Unit replacement - The process of swapping out a unit with a clean unit. No conﬁguration change is required.

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Building a Stack

• Planning to build a traditional stack......................................................................................................................... 21

• Planning to build a stack with 802.1br switch port extender capability.....................................................................25

• Traditional stack construction methods....................................................................................................................26

• Verifying a traditional stack conﬁguration................................................................................................................. 40

• Displaying information on stack connections........................................................................................................... 42

Planning to build a traditional stack

Before you begin to build a traditional stack, you should be familiar with supported stacking software requirements, topologies, and recommendations.

Software requirements

All units in a traditional stack must be running the same software version.

Maximum conﬁguration ﬁle size for any stack is 1 MB.

Traditional stack requirements

Traditional stacks must contain devices of the same type or product line. For example, a traditional stack cannot combine ICX 7250, ICX 7450, and ICX 7750 devices. However, a traditional stack can contain any combination of devices from the same product line, for example, any combination of ICX 7250 devices.

NOTE

A core stack for an 802.1br (SPX) conﬁguration is a traditional stack that contains only ICX 7750 devices, although the stack may

contain different types of ICX 7750 devices. Refer to the

information.

Brocade FastIron Campus Fabric Conﬁguration Guide

for more

Brocade traditional stacking topologies

Brocade traditional stacking technology supports linear and ring topologies.

Although Brocade stackable units may be connected in a simple linear topology, Brocade recommends a ring topology because it offers the best redundancy and the most resilient operation. Unicast switching follows the shortest path in a ring topology. When the ring is broken, the stack recalculates the forwarding path and then resumes the ﬂow of trafﬁc within a few seconds.

In a ring topology, all stack members must have two stacking ports; however, in a linear topology, both end units use only one stacking port, leaving the other port available as a data port.

FastIron stacking distances and optics by device

Because Brocade devices use Ethernet for the inter-switch stack connections, the deployment options are greatly increased. If standard copper stacking cables are used, the inter-switch connections can be up to 5 meters, which is usually sufﬁcient for locally distributed stacks, such as in Top-of-Rack (ToR) applications. For broader distribution, ﬁber-optic cables should be used, allowing a stack to be deployed across multiple physical locations, such as in the wiring closets of an ofﬁce building, or in different buildings on a campus.

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Building a Stack Planning to build a traditional stack

Cables that support different distances can be combined in the same stack. For example, you can use LR4 Single Mode Fiber (SMF) optics at both ends of a stacking connection, and the maximum distance is extended to 10 kilometers. Other stacking ports in the same stack can use other optics, such as SR4, at both ends. The maximum distance for such a connection is 100 meters.

NOTE

The same optics (for example, LR4) must be used on both ends of a connection. If the optics do not match on both ends, the

ports will not come up.

The following table shows copper and ﬁber-optic options approved for stacking and stacking distance combinations. For more information on Brocade cable options, refer to

The Brocade Optics Family Datasheet

on the Brocade website.

TABLE 5 Copper and ﬁber-optic options and stacking distances

Device Stacking port Copper options Fiber-optic options Fiber-optic maximum

stacking distance

ICX 7750 6 X 40-Gbps

Front and rear stacking and uplink

ICX 7450 (rear) 1 X 40-Gbps stacking and

uplink on slots 3 and 4

ICX 7450 (front) 4 X 10-Gbps stacking on

slot 2 with the icx7400-4x10GF module only

ICX 7250 4 X 10-Gbps stacking

from dedicated or uplink ports

4 X 10F SFP+ uplink ports: No-PHY

4 X 10F SFP+ stacking ports: With re-timer capability

0.5- or 1-meter passive copper 1-, 3-, or 5-meter QSFP-QSFP active direct-attach copper, 7 or 10meter QSFP-QSFP AOC

0.5- or 1-meter passive copper

1-, 3-, or 5-meter QSFP-QSFP active direct-attach copper

1-, 3-, or 5-meter SFP+ active direct-attach copper, 7 or 10-meter SFP+ AOC

1-, 3-, or 5-meter active cables 10GE SR SFP+

40G-QSFP-SR4 100 meters

40G-QSFP-BiDi

40G-QSFP-eSR4 300 meters

40G-QSFP-LR4

40G-QSFP-LR4 10 kilometers

40G-QSFP-SR4 100 meters

40G-QSFP-eSR4 300 meters

10G-SFPP-USR 100 meters

10G-SFPP-SR 300 meters

10G-SFPP-LR 10 kilometers

10GE USR SFP+

10GE LR SFP+

10 kilometers for ICX 7750-26Q, ICX 7750-48C, and ICX 7750-48F

devices

300 meters

100 meters

10 kilometers

Long-distance stacking ports

Only certain FastIron stacking devices support long-distance stacking. FastIron models and 40-Gbps ports that can be used for longdistance data and stacking connections are listed in the following table.

TABLE 6 FastIron long-distance 40-Gbps ports

Product and model Ports that support 1X40-Gbps optics Long-distance stacking ports

ICX 7450 (all models) 1/3/1, 1/4/1 1/3/1, 1/4/1

LR4 optics can be used only on speciﬁed ICX 7750 ports. Refer to "Long-distance stacking ports" in this guide.

Extended distance stacking on the ICX 7750 is restricted to certain ports. Refer to "Installing the ICX 7750 in a remote stack" in this guide.

For data uplink only, the following 40-Gbps optics are available on ICX 7450 devices: 40G-QSFP-BiDi, 40-G-QSFP-LM4, 40G-QSFP-ER4

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Planning to build a traditional stack

TABLE 6 FastIron long-distance 40-Gbps ports (continued)

Product and model Ports that support 1X40-Gbps optics Long-distance stacking ports

ICX 7750-26Q 1/1/1 through 1/1/20; 1/2/1 through 1/2/6, 1/3/5, 1/3/6 1/2/5, 1/2/6, 1/3/5, 1/3/6

ICX 7750-48F 1/2/5, 1/2/6, 1/3/5, 1/3/6 1/2/5, 1/2/6, 1/3/5, 1/3/6

ICX 7750-48C 1/2/5, 1/2/6, 1/3/5, 1/3/6 1/2/5, 1/2/6, 1/3/5, 1/3/6

NOTE

Long-distance stacking ports are not default stacking ports. If you are using only long-distance stacking ports, you cannot use the

stack secure-setup utility to conﬁgure your stack because the secure-setup utility probes for other potential stack members only

on default stacking ports.

LR optics can be used on ICX 7450 4X10-Gbps ports when a 4X10GF module is installed. LR optics can support distances up to 10 kilometers for data or stacking. Long-distance stacking with LR optics is supported on front panel ports 1/2/1 through 1/2/4. The following table summarizes LR support on the ICX 7450.

TABLE 7 FastIron long-distance 4X10-Gbps ports

Product and model 10-Gbps ports that support LR optics Long-distance stacking ports

ICX 7450 front (all models, with 4X10GF module)

ICX 7450 back (all models, with 4X10GF module)

1/2/1 through 1/2/4 1/2/1 through 1/2/4

1/3/1 through 1/3/4 and 1/4/1 through 1/4/4 (data only) 1/3/1 through 1/3/4 and 1/4/1 through

1/4/4

For general information on all long-distance stacking options for all FastIron stacking models, refer to FastIron stacking distances and optics

by device on page 21. For details on setting up for long-distance stacking, refer to Installing the ICX 7750 in a remote stack on page 78.

Displaying information on supported distances

Use the show media command to display information on stacking connections and supported distances. You can specify any interface

within a stack or SPX conﬁguration as shown in the following examples. You can also designate a stack to display all media attached to the stack. Without parameters, the command displays all media attached to the device.

The following example displays information for an interface with an LR4 optic.

ICX7750-48F Router# show media ethernet 4/2/6 Port 4/2/6: Type : 40GE-LR4 10km (QSFP+ LC) Vendor: BROCADE Version: 2 Part# : 57-1000263-01 Serial#: LDJ21325C230002

The following command output is for an interface with a 40-Gbps active copper optic with a maximum distance of 10 meters.

ICX7750-48F Switch# show media ethernet 3/2/1 Port 3/2/1: Type : 40GE-Active Copper 10m (QSFP+) Vendor: BROCADE Version: A Part# : 57-1000306-01 Serial#: NEA11510000003S

The following output is for an interface with a 40-Gbps ESR4 optic.

ICX7750-48F Switch# show media ethernet 1/2/3 Port 1/2/3: Type : 40GE-ESR4 300m (QSFP+) Vendor: BROCADE Version: A Part# : 57-1000296-01 Serial#: LVA115150000004

The following example displays information about the media attached to the device.

device# show media

Port 1/1/1 : Type : 1G M-C (Gig-Copper)

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Building a Stack Planning to build a traditional stack

Port 1/1/2 : Type : 1G M-C (Gig-Copper) Port 1/1/3 : Type : 1G M-C (Gig-Copper) Port 1/1/4 : Type : 1G M-C (Gig-Copper) Port 1/1/5 : Type : 1G M-C (Gig-Copper) Port 1/1/6 : Type : 1G M-C (Gig-Copper) Port 1/1/7 : Type : 1G M-C (Gig-Copper) Port 1/1/8 : Type : 1G M-C (Gig-Copper) Port 1/1/9 : Type : 1G M-C (Gig-Copper) Port 1/1/10: Type : 1G M-C (Gig-Copper) Port 1/1/11: Type : 1G M-C (Gig-Copper) Port 1/1/12: Type : 1G M-C (Gig-Copper) Port 1/1/13: Type : 1G M-C (Gig-Copper) Port 1/1/14: Type : 1G M-C (Gig-Copper) Port 1/1/15: Type : 1G M-C (Gig-Copper) Port 1/1/16: Type : 1G M-C (Gig-Copper) Port 1/1/17: Type : 1G M-C (Gig-Copper) Port 1/1/18: Type : 1G M-C (Gig-Copper) Port 1/1/19: Type : 1G M-C (Gig-Copper) Port 1/1/20: Type : 1G M-C (Gig-Copper) Port 1/1/21: Type : 1G M-C (Gig-Copper) Port 1/1/22: Type : 1G M-C (Gig-Copper) Port 1/1/23: Type : 1G M-C (Gig-Copper) Port 1/1/24: Type : 1G M-C (Gig-Copper) Port 1/2/1 : Type : 10GE SR 300m (SFP +) Port 1/2/2 : Type : EMPTY Port 1/2/3 : Type : 1G Twinax 1m (SFP) Port 1/2/4 : Type : 1G Twinax 1m (SFP)

The following example shows output for the speciﬁed stack.

device# show media stack 1

Port 1/1/1 : Type : EMPTY Port 1/1/2 : Type : EMPTY Port 1/1/3 : Type : EMPTY Port 1/1/4 : Type : EMPTY Port 1/1/5 : Type : EMPTY Port 1/1/6 : Type : EMPTY Port 1/1/7 : Type : EMPTY Port 1/1/8 : Type : EMPTY Port 1/1/9:1 : Type : 4x10GE Active Copper 1m (QSFP+) Port 1/1/9:2 : Type : 4x10GE Active Copper 1m (QSFP+) Port 1/1/9:3 : Type : 4x10GE Active Copper 1m (QSFP+) Port 1/1/9:4 : Type : 4x10GE Active Copper 1m (QSFP+) Port 1/1/10 : Type : EMPTY Port 1/1/11:1: Type : 4x10GE Active Copper 1m (QSFP+) Port 1/1/11:2: Type : 4x10GE Active Copper 1m (QSFP+) Port 1/1/11:3: Type : 4x10GE Active Copper 1m (QSFP+) Port 1/1/11:4: Type : 4x10GE Active Copper 1m (QSFP+) Port 1/1/12 : Type : EMPTY Port 1/1/13 : Type : EMPTY Port 1/1/14 : Type : EMPTY Port 1/1/15 : Type : EMPTY Port 1/1/16 : Type : EMPTY Port 1/1/17 : Type : EMPTY Port 1/1/18 : Type : EMPTY Port 1/1/19 : Type : EMPTY Port 1/1/20 : Type : EMPTY Port 1/2/1 : Type : EMPTY Port 1/2/2 : Type : EMPTY Port 1/2/3 : Type : EMPTY Port 1/2/4 : Type : EMPTY Port 1/2/5 : Type : EMPTY Port 1/2/6 : Type : EMPTY Port 1/3/1 : Type : 40GE-SR4 100m (QSFP+) Port 1/3/2 : Type : EMPTY Port 1/3/3 : Type : EMPTY Port 1/3/4 : Type : EMPTY Port 1/3/5 : Type : EMPTY Port 1/3/6 : Type : EMPTY

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Planning to build a stack with 802.1br switch port extender capability

Traditional stacking conﬁguration guidelines

Before you conﬁgure your traditional stack, consider the following guidelines:

• Plan the number of units and how the stacking ports on the units will be connected. For more information, refer to the hardware

installation guide for your device.

• The stack should be physically cabled in a linear or ring topology. Connect only those units that will be active in the stack.

• Make sure all units intended for the stack are running the same software version. On any of the console ports in the stack, use the

show version command to view all units, or the show version unit

NOTE

If you are running a router image and there is a potential loop in your topology, you must conﬁgure the Spanning Tree Protocol in

the would-be active controller. Otherwise, excessive looping packets may affect stack formation. The Spanning Tree Protocol is

enabled by default in switch images.

NOTE

If STP is not enabled, there may be a loop issue when multiple cables are used to connect a standalone unit to a stack. The loop

does not affect stack formation. The loop issue disappears after the multiple links are converted to stacking trunks when the

standalone unit is integrated to the stack. However, temporary looping may cause some data trafﬁc interruption. If you are

concerned about potential trafﬁc interruption due to looping, you can connect a single cable to the new unit. After the unit reloads

and becomes a member, you can connect all cables and then run the stack secure-setup utility to make sure these links are

converted to stacking trunks.

unit-number

command to view an individual unit.

• When you have a stack of eight or more units, you may need to increase the trap hold time from the default (60 seconds) to ﬁve

minutes (300 seconds). This will prevent the loss of initial boot traps. To increase the trap hold time, use the following command.

device# configure terminal device(config)# snmp-server enable traps holddown-time 300

Planning to build a stack with 802.1br switch port extender capability

If you are planning to create an 802.1br SPX conﬁguration with an ICX 7750 core stack, there are a few considerations.

In general, Brocade traditional stacking and 802.1br SPX conﬁguration are independent. Here are a few details to keep in mind:

• Only ICX 7750 devices can serve as the control bridge (CB). The CB can be a standalone unit or a stack of multiple units.

• Only ICX 7450 devices can be conﬁgured as PE units attached to the CB. PE units can be attached to any CB unit.

• While a traditional stack may include up to 12 units, a CB stack of no more than four units is recommended.

• ICX 7750 breakout ports can be used with an 802.1br SPX conﬁguration; however, they can be enabled only in a standalone ICX

7750 unit.

• SPX runs over LLDP protocol at Layer 2. When you enable SPX with the spx cb-enable command, the lldp run command is also

executed if LLDP has not previously been enabled.

• You will need to plan a server location from which images and manifest ﬁles can be downloaded to PE units.

• In general, ICX 7750 devices in the CB retain all capabilities. The feature set of ICX 7450 devices operating as PE units, however,

may be affected.

For detailed information on 802.1br SPX conﬁguration, including protocol considerations, refer to the

Extender Conﬁguration Guide

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Brocade FastIron Switch Port

Building a Stack Traditional stack construction methods

Traditional stack construction methods

NOTE

The principles outlined in stack construction scenarios apply to all ICX devices. Figures used to illustrate a certain stack topology

are not necessarily representative of other devices. For illustrations speciﬁc to a particular device, refer to the stack conﬁguration

section for that device, which also contains device-speciﬁc stacking considerations and conﬁguration examples.

There are three ways to build a traditional stack.

1. The secure-setup utility. Secure-setup gives you control over the design of your stack topology and provides security through

password veriﬁcation. For the secure-setup procedure, refer to Using secure-setup to conﬁgure a traditional stack in a ring

topology on page 27.

2. Automatic stack conﬁguration. With this method, you enter all conﬁguration information, including the module type and the

priorities of all members into the unit you decide will be the active controller and set its priority to be the highest. When you enable

stacking on the active controller, the stack then forms automatically. This method requires that you start with clean units (except for

the active controller) that do not contain startup or runtime conﬁgurations. Refer to Scenario 2 - Automatically conﬁguring a three-

member traditional stack in a ring topology on page 35.

3. Manual stack conﬁguration. With this method, you conﬁgure every unit individually and enable stacking on each unit. Once the

units are connected together, they automatically operate as a traditional stack. With this method, the unit with the highest priority

becomes the active controller, and ID assignment is determined by the sequence in which you physically connect the units. Refer

to Scenario 3 - Manually conﬁguring a three member traditional stack in a ring topology on page 39.

The secure-setup utility

NOTE

Secure-setup works for units within a single stack. It does not work across stacks.

NOTE

Long distance stacking ports are not default stacking ports. If you are using only long distance stacking ports, you cannot use the

stack secure-setup utility to conﬁgure your stack because the secure-setup utility probes for other potential stack members only

on default stacking ports.

Secure-setup lets you easily conﬁgure your entire stack through the active controller, which propagates the conﬁguration to all stack members. Secure-setup is the most secure way to build a traditional stack. It gives you the most control over how your stack is built. For example, secure-setup offers three security features that prevent unauthorized devices from accessing or joining a traditional stack:

• Authentication of secure-setup packets provides veriﬁcation that these packets are from a genuine Ruckus stack unit. MD5-based

port veriﬁcation conﬁrms stacking ports.

• A superuser password is required to allow password-protected devices to become members of a traditional stack.

• The stack disable command prevents a unit from listening for or sending stacking packets. When a unit is stack-disabled, no

other device in the network can force the unit to join a traditional stack.

Secure-setup can also be used to add units to an existing traditional stack and to change the stack IDs of stack members.

Secure-setup and the active controller

When secure-setup is issued on a unit that is not already the active controller, the unit becomes the active controller. If this unit does not already have an assigned priority and if no other unit in the stack has a priority higher than 128, secure-setup assigns the unit a priority of 128 by default. However, if another unit in the stack has a priority of 128 or higher, secure-setup gives the active controller a priority equal to the highest priority unit in the stack (which is by default the standby controller). When the active controller and the standby controller have

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Building a Stack

Traditional stack construction methods

identical priorities, during a reset, the old active controller cannot reassume its role from the standby controller (which became the active controller at the reset).

If the previous active controller again becomes active and you want it to resume the role of active controller, you should set the priority for the standby controller to a priority lower than 128. If you do not want the previous active controller to remain the active controller, you can set the same priority for both active and standby controllers (equal to or higher than128).

Using secure-setup to conﬁgure a traditional stack in a ring topology

The following ﬁgure shows three ICX 7750 stacking units connected in a ring. The secure-setup example that follows is for 12 ICX 7750 units in a ring topology. However, the procedure can be used for any stackable ICX device and any size traditional stack.

FIGURE 4 Traditional stack with ring topology

1. Connect the devices using the stacking ports and stack cabling. For more information, refer to the appropriate hardware

installation guides.

2. Power on the units.

3. Connect your console to the intended active controller. The unit through which you run secure-setup becomes the active controller

by default.

4. Issue the stack enable command on the intended active controller.

device# configure terminal device(config)# stack enable device(config)# exit

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Building a Stack Traditional stack construction methods

5. Enter the stack secure-setup command. As shown in the following example, this command triggers a Ruckus proprietary

discovery protocol that begins the discovery process in both upstream and downstream directions. The discovery process

produces a list of upstream and downstream devices that are available to join the stack. Secure-setup can detect up to 11 units in

each direction (22 units total); however, you must select a total number of units that is less than the maximum stack size for the

device because the controller is also part of the stack.

NOTE During the secure-setup process, after one minute of inactivity, authentication for stack members expires, forcing you to restart the process.

NOTE To exit the secure-setup, enter ^C at any time.

The following example shows the suggested discovered topology.

ICX7750-48F Router# stack secure-setup ICX7750-48F Router# Discovering the stack topology...

Current Discovered Topology - RING

Available UPSTREAM units Hop(s) Id Type Mac Address 1 new ICX7750-48XGF cc4e.246d.8d80 2 new ICX7750-48XGF cc4e.246d.9b00 3 new ICX7750-48XGF cc4e.246d.9c80 4 new ICX7750-20QXG cc4e.2439.2a80 5 new ICX7750-20QXG cc4e.2439.3700 6 new ICX7750-20QXG cc4e.2439.3880 7 new ICX7750-20QXG cc4e.2439.2d00 8 new ICX7750-48XGC cc4e.2439.1a00 9 new ICX7750-48XGC cc4e.2439.1680 10 new ICX7750-48XGC cc4e.2439.1d80 11 new ICX7750-48XGC cc4e.2439.1280

Available DOWNSTREAM units Hop(s) Id Type Mac Address 1 new ICX7750-48XGC cc4e.2439.1280 2 new ICX7750-48XGC cc4e.2439.1d80 3 new ICX7750-48XGC cc4e.2439.1680 4 new ICX7750-48XGC cc4e.2439.1a00 5 new ICX7750-20QXG cc4e.2439.2d00 6 new ICX7750-20QXG cc4e.2439.3880 7 new ICX7750-20QXG cc4e.2439.3700 8 new ICX7750-20QXG cc4e.2439.2a80 9 new ICX7750-48XGF cc4e.246d.9c80 10 new ICX7750-48XGF cc4e.246d.9b00 11 new ICX7750-48XGF cc4e.246d.8d80

Do you accept the topology (RING) (y/n)?: y

You are prompted to accept the topology.

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6. Enter y to accept the topology. You should see output similar to the following.

Selected Topology: Active Id Type Mac Address 1 ICX7750-48XGF cc4e.246d.9e00

Selected UPSTREAM units Hop(s) Id Type Mac Address 1 2 ICX7750-48XGF cc4e.246d.8d80 2 3 ICX7750-48XGF cc4e.246d.9b00 3 4 ICX7750-48XGF cc4e.246d.9c80 4 5 ICX7750-20QXG cc4e.2439.2a80 5 6 ICX7750-20QXG cc4e.2439.3700 6 7 ICX7750-20QXG cc4e.2439.3880 7 8 ICX7750-20QXG cc4e.2439.2d00 8 9 ICX7750-48XGC cc4e.2439.1a00 9 10 ICX7750-48XGC cc4e.2439.1680 10 11 ICX7750-48XGC cc4e.2439.1d80 11 12 ICX7750-48XGC cc4e.2439.1280

Selected DOWNSTREAM units Hop(s) Id Type Mac Address 1 12 ICX7750-48XGC cc4e.2439.1280 2 11 ICX7750-48XGC cc4e.2439.1d80 3 10 ICX7750-48XGC cc4e.2439.1680 4 9 ICX7750-48XGC cc4e.2439.1a00 5 8 ICX7750-20QXG cc4e.2439.2d00 6 7 ICX7750-20QXG cc4e.2439.3880 7 6 ICX7750-20QXG cc4e.2439.3700 8 5 ICX7750-20QXG cc4e.2439.2a80 9 4 ICX7750-48XGF cc4e.246d.9c80 10 3 ICX7750-48XGF cc4e.246d.9b00 11 2 ICX7750-48XGF cc4e.246d.8d80

Building a Stack

Traditional stack construction methods

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Building a Stack Traditional stack construction methods

7. If the Brocade device supports stacking trunks, the system next displays available trunk options in turn and requests your input on

how many ports to include. The range is presented in parentheses, and the current setting is presented in square brackets. For

example, (1-3) [ 1 ] indicates that the current connection is a single-port link, and you have the option of electing a 2-port or a 3-

port trunk instead. When prompted, enter the desired trunk size as shown in the following example.

Confirm Stacking Links...

UPSTREAM Unit: Id new at 4 hop(s) ICX7750-20QXG cc4e.2439.2a80

Enter the desired links(1-3)[1]: 3

UPSTREAM Unit: Id new at 6 hop(s) ICX7750-20QXG cc4e.2439.3880

Enter the desired links(1-3)[1]: 3

UPSTREAM Unit: Id new at 10 hop(s) ICX7750-48XGC cc4e.2439.1d80

Enter the desired links(1-2)[1]: 2

UPSTREAM Unit: Id new at 11 hop(s) ICX7750-48XGC cc4e.2439.1280

Enter the desired links(1-2)[1]: 2

Once you have speciﬁed trunk sizes, you should see system output similar to the following example, and you are prompted to

conﬁrm the stack unit IDs.

Selected Topology: Active Id Type Mac Address 1 ICX7750-48XGF cc4e.246d.9e00

Do you accept the unit id's (y/n)?: y

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Ruckus FastIron Stacking Conﬁguration Guide, 08.0.40b

+ 126 hidden pages

Ruckus Wireless ICX 7450, ICX 7250, ICX 7750 Configuration Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preface

Document Conventions

Notes, Cautions, and Warnings

Command Syntax Conventions

Document Feedback

Ruckus Product Documentation Resources

Online Training Resources

Contacting Ruckus Customer Services and Support

What Support Do I Need?

Open a Case

Self-Service Resources

About This Guide

Supported hardware

What’s new in this document

How command information is presented in this guide

Stacking Overview

Traditional stacking

Switching and routing advantages

Campus Fabric

Brocade stackable models

Brocade traditional stacking terminology

Stack unit roles

Stacking terms

Building a Stack

Planning to build a traditional stack

Software requirements

Traditional stack requirements

Brocade traditional stacking topologies

FastIron stacking distances and optics by device

Long-distance stacking ports

Displaying information on supported distances

Planning to build a stack with 802.1br switch port extender capability

Traditional stack construction methods

The secure-setup utility

Secure-setup and the active controller