Avaya BayStack 400-ST1 User Manual

Installing the BayStack 400-ST1 Cascade Module

Part No. 304433-B Rev 00 August 2000

Trademarks

Nortel Networks and BayStack are trademarks of Nortel Networks, Inc. All other trademarks and registered trademarks are the property of their respective owners.

Statement of Conditions

In the interest of improving internal design, operational func tion, and/ or relia bility, Nortel Networks, Inc. reserves the right to make changes to the products described in this document without notice.

Nortel Networks, Inc. does not assume any liability that may occur due to the use or application of the product(s) or circuit layout(s) described herein.

Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice

Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy. If it is not installed and used in accordance with the instruction manual, it may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case users will be required to take whatever measures may be necessary to correct the interference at their own expense.

EN 55 022 Declaration of Conformance

This is to certify that the Nortel Networks BayStack 400-ST1 Cascade Module is shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a. Conformity is declared by the application of EN 55 022 Class A (CISPR 22).

Warning: This device is a Class A product. In a domestic environment, this product may cause radio interference, in which case, the user may be required to take appropriate measures.

These products conform to the provisions of Council Directive 89/336/EEC and 72/ 23/EEC. The Declaration of Conformity is available on the Nortel Networks World Wide Web site at www.nortelnetworks.com.

Introduction

This guide shows how to install BayStack™ 400-ST1 Cascade Modules into the following supported switches

• Nortel Networks Business Policy Switch 2000

• BayStack 450 Switch

• BayStack 410-24T Switch You can create a mixed stack of supported switches, but

certain restrictions apply (Figure 1).

Mixed stack configuration

Business Policy Switch

BayStack 450

BayStack 410-24T

A Business Policy Switch

must be assigned as the

Base Unit

Same software

versions

Same software

versions

must have the same

Interoperability Software

Version Number (ISVN)

™

All stack units

BS0045A

Figure 1. Compatible Software Versions

The terms “Nortel Networks Business Policy Switch 2000” and

“Business Policy Switch” are used synonomously in this guide.

As shown in Figure 1 on page 1, in a mixed stack configuration, the BayStack 450 and 410-24T switches must use compatible but device-specific software versions to operate with the Business Policy Switch.

You must ensure that the Interoperability Software V ersion Numbers (ISVN) are identical. That is, the ISVN for the BayStack 450 and 410-24T must be the same as the ISVN for the Business Policy Switch. If the numbers are different, only the units that have the same ISVN as the base unit will form a stack. You can verify your switch software version and ISVN in the sysDescr field of the System Characteristics screen (see your switch’s User Guide for more information).

Also, for correct operation in a mixed stack configuration, the Business Policy Switch must be configured as the base unit. If you do not des ignate t he Bu sine ss Poli cy Swi tch as the base unit, the mixed stack will not operate.

Note:

BayStack 400-ST1 Cascade Module

The

will not operate with BayStack 450 switches that are configured with BayStack 450 software versions earlier than version V1.1.0. You must upgrade the switches to BayStack 450 software version V1.1.0 (or later) before you install the BayStack 400-ST1 Cascade Modules.

If you need to upgrade your switches, refer to “Upgrading the Switch Firmware” on page 39 of this guide.

You can obtain the latest updates to your product documentation, including release notes, by visiting the Nortel Networks Web site at the following location:

www .support.baynetworks.com/library/tpubs

Find the Nortel Networks product for which you need documentation. Then locate the specific category and model or version for your hardware or software product. Using Adobe Acrobat Reader, you can open the manuals and release notes, search for the sections you need, and print them on most standard printers. You can download Acrobat Reader free from the Adobe Systems Web site,

www.adobe.com.

For information about: Go to:

The contents of the shipping box page 4 The 400-ST1 front panel components page 5 The base unit page 8 Stack configurations page 12 The redundant cascade stacking feature page 16 Installing the 400-ST1 Cascade Module page 18 Modifying an existing stack configuration page 29 Upgrading the BayStack 450 Switch

Firmware

page 39

Contents of Shipment

Your BayStack 400-ST1 shipment includes the following items (Figure 2):

AL2033010

Figure 2. Contents of Shipment

Optional Cables

BS0030B

Item Description

Part Number

Order Number

1 BayStack 400-ST1 Cascade Module - - AL2033010

-- .5 meter (18 in.) cascade cable 308085-A --

Installing the BayStack 400-ST1 Cascade Module

2 Optional (additional) .5 meter (18 in.)

cascade cable

304433-B --

308085-A AL2018002

3 Optional 1 meter (3.28 ft) return cable 303979-A AL2018001 4 Optional 3 meter (9.84 ft) return cable 308086-A AL2018004

Includes the .5 meter (18 in.) cable and

Cascade Module

Required for stacking three or more units (maximum 8 units per stack).

Installing the BayStack 400-ST1

If any items are missing or damaged, contact the sales agent or the customer service representative from whom you purchased the BayStack 400-ST1 cascade module.

You will need a Phillips screwdriver for the installation.

Note:

Unless otherwis e s pecified, the terms “switch”

and “unit” are used interchangeably in this guide.

BayStack 400-ST1 Front Panel Components

The front panel components of the BayStack 400-ST1 Cascade Module are shown in Figure3. Component descripti ons follow the figure .

Cascade A Out

1 = Blank connectors (unused) 2 = Cascade A Out connector 3 = Unit Select switch 4 = Cascade A In connector

Unit Select

Base

Cascade A In

Figure 3. Front Panel Components

BS0031A

Cascade A Out Connector

Provides an attachment point for connecting this unit to another unit via the cascade cable. A cascade return cable from another unit’s Cascade A Out connector to this unit’s Cascade A In connector completes the stack connection (see the example shown in Figure 4).

Note:

For stacking three or more units, order the optional 1 meter (3.28 ft) or 3 meter (9.84 ft) cascade return cable (Figure 2).

Unit Select Switch

The Unit Select switch (up = Base) determines the base unit for the stack configuration (see “Base Unit” on

page 8). The Unit Select switch status is displayed on the switch’s LED dis play panel ( see your sw itch’s User Guide for details). When in the Base (up) position, all other Unit Select switches in the stack configuration must be set to Off (down).

Cascade A In Connector

Provides an attachment point for accepting a cascade cable connection from an adjacent unit in the stack. A cascade return cable from this unit’s Cascade A Out connector to the adjacent unit’s Cascade A In connector completes the stack connection (see the example shown in Figure 4).

Cascade A Out

Cascade A In

Unit 1

Cascade A Out

Cascade A InUnit Select

Unit 2

1 = Base unit 2 = 303978-A cascade cable

Cascade A Out

Cascade A InUnit Select

3 = 303978-A cascade cable (used for return)

Figure 4. Connecting Cascade Cables

BS0032A

Base Unit

The base unit is a unique unit that can be selected by the Unit Select switch on the front panel of the 400-ST1 cascade module (see “Unit Select Switch” on page 6).

One unit must be assigned as the base unit; all other units must have their Unit Select switch set to Off.

Normally, any single unit in a stack configuration can be assigned as the base unit, with the following restriction:

In a mixed stack configuration that contains one or more Business Policy Switch units, a Business Po licy Switch must be configured as the base unit.

Note:

If you do not designate a Business Policy Switch as the base unit of a mixed stack configuration, the stack configuration will not operate.

The physical ordering of all of the other units in the stack are determined by the position of the base unit within the stack. This is important for management applications that view the physica l ordering of the units within the stack.

Some characteristics of the base unit are:

Initial installation

•

-- During the initial installation of the stack, the software automatically determines the physical order of all units in the stack according to the position of the base unit within the stack.

For example, when the stack is powered up, the base unit becomes unit 1 and the unit that the base unit connects to (via the Cascade A Out cable) becomes unit 2 (and the next unit is unit 3 and so on), until the maximum stack configuration (up to 8 units) is reached.

If the base unit is changed to anoth er unit in the s tack, the new base unit k eeps its or iginal un it num ber in the stack.

Note:

You can renumber the units when you perform the initial setup of the stack as described in your switch’s

•

Temporary Base Unit

User Guide

-- If an assigned base unit fails,

the next unit in the stack order automatically becomes the new temporary base unit, as follows:

-- If the assigned base unit is a Business Policy Switch (in a mixed stack configuration), the next Business Policy Switch unit in the stack order automatically becomes the new temporary base unit.

-- If there is only one Business Policy Switch unit in your mixed stack configuration, and it fails, the next upstream BayStack 450 Switch unit will become the temporary base unit and will continue stack operation. The base unit change is indicated by the Base LED on the temporary base unit’s LED display panel turning on (yellow).

•

Automatic failover

-- The automatic failover to a

temporary base unit is a temporary safeguard only. If the stack configuration loses power, the temporary

base unit will not power up as the base unit when power is restored. For this reason, you should always assign the temporary base unit as the designated base unit (assign another Business Po licy Switch, if available) until the failed unit is repaired or replaced. Set the Unit Select switch on the temporary base unit to Base (up = Base) to reassign it as the new base unit.

•

Removing a unit from the stack

-- If a unit is removed from the stack (therefore operating in standalone mode), the following switch configuration settings revert back to the settings configured before the unit became a member of the stack:

-- IP address

-- Console password

-- TELNET password

-- SNMP community strings

Stack MAC address

•

-- The stack MAC address is automatically assigned during the stack initialization. The base unit’s MAC address, with an offset, is used for the stack MAC address.

For example, if the base unit’s MAC address is:

00-00-82-99-44-00

and the offset is:

then the stack MAC address becomes:

00-00-82-99-44-1F

If another unit in the stack is assigned as the base unit, the MAC address of the new base unit (with offset) now applies to the stack configuration.

The original stack IP address still applies to the new base unit.

+ 29 hidden pages