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Bay Networks BayStack 400-ST1 Installation Manual

Bay networks cascade module installation manual
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Installing the
BayStack 400-ST1
Cascade Module
Part No. 304433-A Rev 00
November 1998

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Summary of Contents for Bay Networks BayStack 400-ST1

  • Page 1 Installing the BayStack 400-ST1 Cascade Module Part No. 304433-A Rev 00 November 1998...
  • Page 2 EN 55 022 Declaration of Conformance (UPDATE THIS FOR 400-ST1) This is to certify that the Bay Networks BayStack 400-ST1 Cascade Module are shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a.
  • Page 3 “Upgrading the BayStack 450 Switch page 36 of this guide. You must upgrade the switch before installing the BayStack 400-ST1 Cascade Module. If you are upgrading your BayStack 450 switches, be sure to obtain the latest version of the Using the BayStack 450 10/100/1000 Series Switch guide.
  • Page 4 Find the Bay 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.

  • Page 5: Contents Of Shipment

    Contents of Shipment Each BayStack 400-ST1 shipment includes the following items (Figure • One BayStack 400-ST1 Cascade Module • One .30 meter (12 inch) cascade cable; part number 303978-A. • This guide (Installing the BayStack 400-ST1 Cascade Module). BayStack 400-ST1 cascade module 0.30 m (12 in.) cascade...
  • Page 6 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. Unless otherwise specified, the terms Note: “switch”...
  • Page 7 Cascade A Out Connector Provides an attachment point for connecting this unit to another unit via the cascade cable. A 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 For stacking three or more units Note:...

  • Page 8: Unit

    Cascade A In Connector Provides an attachment point for accepting a cascade cable connection from an adjacent unit in the stack. A 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 Cascade A Out Unit 1...

  • Page 9: Unit

    Base Unit Description The base unit is a unique stack unit that can be selected by the Unit Select switch on the front-panel of the 400-ST1 cascade module. One unit in the stack configuration must be assigned as the base unit; all other units in the stack must have their Unit Select switch set to Off (see Select Switch”...

  • Page 10: Unit

    You can renumber the units when you Note: perform the initial setup of the stack as described in the Using the BayStack 450 10/100/1000 Series Switch guide. • Stack IP MAC address automatically assigned during the stack initialization: The base unit’s MAC address, with a software offset, is used for the stack IP MAC address.

  • Page 11: Unit

    • Temporary Base Unit --- If an assigned base unit fails, the next unit in the stack order automatically becomes the new temporary base unit. This change is indicated by the Base LED on the temporary base unit’s LED display panel turning on (yellow). The automatic base unit change to the next unit in the stack order is a temporary safeguard which allows you time to replace the failed unit, or reassign the...

  • Page 12: Unit

    Stack Configurations As shown in Figure on the 400-ST1 front-panel provide the ability to stack up to eight BayStack switches. With 400-4TX MDAs installed in each switch, the stack can accommodate a maximum of 224 switch ports. Because stack parameters are associated with the base unit (see “Base Unit Description”...
  • Page 13 1 = Last unit 2 = Base unit 3 = Cascade cable (PN 303978-A) 4 = Cascade max-return cable (PN 303979-A) Figure 4. Stack Up Configuration Example Unit 8 Unit 7 Unit 6 Unit 5 Unit 4 Unit 3 Unit 2 Unit 1 BS0033A...

  • Page 14: Table Of Contents

    1 = Base unit 2 = Last unit 3 = Cascade cable (PN 303978-A) 4 = Cascade max-return cable (PN 303979-A) Figure 5. Stack Down Configuration Example Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Unit 8 BS0034A...

  • Page 15: Unit

    Certain network management station (NMS) applications assume a stack down configuration for the graphical user interface (GUI) that represents the stack (see page 12). For this reason, Bay Networks recommends that you always configure the top unit in the stack as the base unit.
  • Page 16 Redundant Cascade Stacking Feature BayStack 400-ST1 Cascade Modules allow you to connect up to 8 units into a redundant cascade stack. If any single unit fails or if a cable is accidently disconnected, other units in the stack remain operational, without interruption.

  • Page 17: Base Unit 2 = Last Unit

    Unit 1 Unit 2 Unit 3 Unit 4 Unit 5 1 = Base unit 2 = Last unit 3 = Cascade cable (PN 303978-A) 4 = Cascade max-return cable (PN 303979-A) Figure 6. Redundant Cascade Stacking Feature Cascade A Out Cascade A In BS0035A...

  • Page 18: Installation

    Installation This section describes how to connect up to eight BayStack 10/100/1000 Series switches into a redundant stack. The switch stack can consist of any combination of BayStack 450-24T and BayStack 450-12T switch models. Before installing your equipment, review the previous sections of this guide.
  • Page 19 Installing the 400-ST1 Cascade Module The Cascade Module slot on the BayStack 450 switch can accommodate a single 400-ST1 Cascade Module. To install a 400-ST1 Cascade Module into the Cascade Module slot, follow these steps: Unplug the AC power cord from the back of the switch.
  • Page 20 Caution: Be sure that the module slides in on the guides provided. Failure to align the guides could result in bent and broken pins Ca sc ad e A Ou Un it Se lec t Ba se Ca sc ad e A In Figure 8.
  • Page 21 Installing and Connecting Multiple Switches The procedure to install and connect multiple switches is similar for tabletop, shelf, or standard 19-inch utility rack installations. To install multiple switches, follow these steps: Install one unit at a time in the rack or on the shelf or tabletop.
  • Page 22 Set the Unit Select switch for the base unit to the Base (up = Base) position Set the Unit Select switch for all other units in the stack to the Off (down = Off) position Only one unit in the stack can be the base unit. Cascade A Out Figure 9.
  • Page 23 Connect the units using the supplied cascade cables (Figure Connect one end of a cascade cable to the Cascade A Out connector on the Base Unit (unit 1). Unit 1 Unit 2 Unit 3 Unit 4 1 = Base unit 2 = Last unit 3 = Cascade cable (PN 303978-A) 4 = Cascade max-return cable (PN 303979-A)
  • Page 24 Connect the other end of the cascade cable to the cascade A In connector on the unit just below the base unit (unit 2), or just above the base unit if cascading up the stack. Continue attaching the cascade cables until the last unit is configured.
  • Page 25 Connecting Power When the stack is initially powered up, the software automatically assigns unit numbers to the units (the individual switches in the stack). The unit numbers correspond to the physical stack power up/initialization sequence, beginning with the base unit as unit 1. The stack initialization sequence takes approximately 30 seconds for completion.
  • Page 26 One or two AC power strips may be required to accommodate the quantity of switches in the stack. Apply power to the AC power strip. Set the AC power strip On/Off switch to On (or connect the AC power strip to a grounded AC power outlet).
  • Page 27 Status RPSU Base 1 = Base unit only 2 = All other units in stack Figure 11. Verifying the Installation • The Base LED for the base unit only is on. If one (or more) Base LEDs are blinking, no unit (or more than one unit) is configured as the base unit.
  • Page 28 Modifying an Existing Stack Configuration This section provides examples of how to modify an existing stack configuration. The examples assume the stack configuration is operational with connected stations. Always notify the attached stations that there may be a temporary disruption of the network services before you begin the modification.
  • Page 29 Assigning a New Base Unit to the Stack To assign a new base unit to the stack, complete the following steps: Bay Networks recommends that you Note: always configure the top unit in the stack as the base unit. Set the Unit Select switch on the original base unit to the Off position.
  • Page 30 Adding Units to the Stack This section describes how to add one or more units to the middle of a stack or to the end of a stack. Refer to Using the BayStack 450 Note: 10/100/1000 Series Switch for information about installing units on a tabletop or in a standard 19-inch utility rack.
  • Page 31 For tabletop configurations, temporarily move units 1 and 2 to allow space for units 5 and 6. 1 = Base unit 2 = Last unit 3 = Cascade cable (PN 303978-A) 4 = Cascade max-return cable (PN 303979-A) Figure 12. Adding to Middle of Stack Add the new units to the desired location.
  • Page 32 Reconnect the cascade cable from unit 2 to the Cascade A In connector of (new) unit 5. Connect a cascade cable from the Cascade A Out connector of unit 5 to the Cascade A In connector of unit 6. Connect a cascade cable from the Cascade A Out connector of unit 6 to the Cascade A In connector of unit 3.

  • Page 33: Stack Configuration

    1 = Base unit 2 = Last unit 3 = Cascade cable (PN 303978-A) 4 = Cascade max- return cable (PN 303979-A) Figure 13. Adding to End of Stack Disconnect the cascade max-return cable (item 4) from the Cascade A Out connector at unit 4. Leave the other end of the cascade max-return cable connected to the Cascade A In connector at unit 1.
  • Page 34 Connect a cascade cable from the Cascade A Out connector of unit 4 to the Cascade A In connector of unit 5. Connect a cascade cable from the Cascade A Out connector of unit 5 to the Cascade A In connector of unit 6.
  • Page 35 Removing/Replacing Adjacent Units To remove/replace adjacent units from an operating stack, complete the following steps (see Remove the cascade cable from the Cascade A Out connector at unit 2. Cascade A Out Cascade A In 1 = Base unit 2 = Last unit Figure 14.
  • Page 36 Remove the cascade cable from the Cascade A In connector at unit 5. Remove the units (units 3 and 4) and install replacement units as required. Renumber the order of the units for the new stack configuration (if desired). You can renumber the unit numbers as described in “Setting Up the Stack Configuration”...
  • Page 37 Repeat Steps 1 to 4 for unit 5. 1 = Base unit 2 = Last unit Figure 15. Removing Nonadjacent Units Renumber the order of the units for the new stack configuration (if desired). You can renumber the unit numbers as described in “Setting Up the Stack Configuration”...
  • Page 38 MDA ports. You must upgrade the BayStack 450 switch firmware image before you install the BayStack 400-ST1 Cascade Module. Note: When upgrading the firmware image to software version V1.1.0, you must download two...
  • Page 39 After the BayStack 450 boot code image is downloaded, click on Version 1.1.0 at the BayStack 450 agent link. Follow the prompts to download the BayStack 450 agent image. The agent image filename is b4501102.img Be sure to download the BayStack 450 boot code image first, then download the BayStack 450 agent image.
  • Page 40 • The port connection to the load host cannot be through a MultiLink Trunk. • During the load process, the ports are configured as follows: • Twisted-pair ports: autonegotiation enabled. • Fiber optic ports: 100 Mb/s, half-duplex. • Gigabit MDA ports: autonegotiation disabled, Preferred Phy set to Right.

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