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33

Removing/Replacing Adjacent Units

To remove/replace adjacent units from an operating stack,
complete the following steps (see

Figure 14

):

1.

Remove the cascade cable from the Cascade A Out
connector at unit 2.

Figure 14.

Removing Adjacent Units

1 = Base unit
2 = Last unit

BS0043A

Unit 2

Unit 1

Unit 4

Unit 3

Unit 6

Unit 5

2

1

Cascade A Out

I

n

O

ut

Cascade A In

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Summary of Contents for BayStack 400-ST1

Page 1: ...Part No 304433 A Rev 00 November 1998 Installing the BayStack 400 ST1 Cascade Module ...

Page 2: ...al 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...

Page 3: ...witch 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 That guide provides instructions for setting up your stack configuration after you install the 400 ST1 Cascade Modules You can obtain the latest updates to your product documentation including ...

Page 4: ...ree from the Adobe Systems Web site www adobe com This guide also describes how to connect 400 ST1 Cascade Modules to create a stack of up to eight BayStack 450 switches and how to modify existing stack configurations For information about Go to page The contents of the shipping box 3 The 400 ST1 front panel components 4 The base unit 7 Stack configurations 10 The redundant cascade stacking featur...

Page 5: ...g the BayStack 400 ST1 Cascade Module Figure 1 Contents of Shipment For stacking three or more units maximum 8 units per stack order the optional 1 meter 39 27 inch cascade max return cable Bay Networks Order No AL2018001 BS0030A BayStack 400 ST1 cascade module 0 30 m 12 in cascade cable PN 303978 A Optional 1 m 39 27 in cascade max return cable PN 303979 A Installing the BayStack 400 ST1 Cascade ...

Page 6: ...Front Panel Components The front panel components of the BayStack 400 ST1 Cascade Module are shown in Figure 2 Component descriptions follow the figure Figure 2 Front Panel Components Note Unless otherwise specified the terms switch and unit are used interchangeably in this guide Cascade A Out Cascade A In Unit Select Base 1 Blank connectors unused 2 Cascade A Out connector 3 Unit Select switch 4 ...

Page 7: ... up Base determines the base unit for the stack configuration see Base Unit Description on page 7 The Unit Select switch status is displayed on the BayStack 450 LED display panel see the Using the BayStack 450 10 100 1000 Series Switch guide for details When in the Base up position all other Unit Select switches in the stack configuration must be set to Off down Note For stacking three or more uni...

Page 8: ...A Out connector to the adjacent unit s Cascade A In connector completes the stack connection see the example shown in Figure 3 Figure 3 Connecting Cascade Cables Cascade A Out Unit 1 Cascade A Out Cascade A In Unit 2 1 Base unit 2 303978 A cascade cable 3 303978 A cascade cable used for return BS0032A Cascade A In Unit Select Cascade A Out Cascade A In Unit Select 2 3 1 ...

Page 9: ...is important for management applications that view the physical 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 b...

Page 10: ... and the Stack software offset is 1F then the Stack IP 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 Note You can renumber the units when you perform the initial setup of the stack as described in ...

Page 11: ...ase unit as the new base unit 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 TE...

Page 12: ...unit s position and whether the stack is configured stack up or stack down Stack Up Configurations In Figure 4 data flows from the base unit unit 1 to the next switch which is assigned as unit 2 and continues until the last switch in the stack is assigned as unit 8 The physical order of the switches is from bottom to top unit 1 to unit 8 Stack Down Configurations In Figure 5 data flows from the ba...

Page 13: ...gure 4 Stack Up Configuration Example Unit 7 Unit 8 1 Last unit 2 Base unit 3 Cascade cable PN 303978 A 4 Cascade max return cable PN 303979 A BS0033A Unit 5 Unit 6 Unit 3 Unit 4 Unit 1 Unit 2 2 1 3 Out In 4 ...

Page 14: ...re 5 Stack Down Configuration Example Unit 2 1 Base unit 2 Last unit 3 Cascade cable PN 303978 A 4 Cascade max return cable PN 303979 A BS0034A Unit 1 Unit 4 Unit 3 Unit 6 Unit 5 Unit 8 Unit 7 2 1 In O ut 4 3 ...

Page 15: ...gle logical unit within 30 seconds after the base unit initialization You can attach an RS 232 communications cable to the Console Comm port of any switch in the stack You can downline upgrade the entire stack from any switch in the stack You can access and manage the stack using a TELNET connection or any generic SNMP management tool through any switch port that is part of the stack configuration...

Page 16: ...al This can be the result of a failed unit or simply because the unit was powered down b Unit 2 and unit 4 directly upstream and downstream from unit 3 sense the loss of link signals from unit 3 c Unit 2 and unit 4 automatically loop their internal stack signals A and B The Cas Up LED for unit 2 and the Cas Dwn LED for unit 4 turn on yellow to indicate the stack signals are looped d The remaining ...

Page 17: ... 6 Redundant Cascade Stacking Feature Unit 2 1 Base unit 2 Last unit 3 Cascade cable PN 303978 A 4 Cascade max return cable PN 303979 A BS0035A Cascade A Out Cascade A In Unit 1 Unit 5 Unit 4 Unit 3 2 1 B A 4 3 ...

Page 18: ...Installing the 400 ST1 Cascade Module Installing and connecting multiple switches Connecting power Verifying the installation After verifying the installation as described in Verifying the Installation on page 24 of this guide refer to the Using the BayStack 450 10 100 1000 Series Switch guide to set up the stack and customize the stack configuration according to your system requirements Note For ...

Page 19: ...dule slot follow these steps 1 Unplug the AC power cord from the back of the switch 2 Loosen the thumbscrews and remove the filler panel from the Cascade Module slot Figure 7 Figure 7 Removing the Filler Panel 3 Insert the 400 ST1 Cascade Module into the chassis slot taking care to slide the module into the guides provided on the chassis Figure 8 BS0036A 1 Filler panel 2 Cascade module slot 1 2 ...

Page 20: ...ing the thumb screws on the module front panel 6 Repeat Steps 1 to 5 for each switch that is to be configured with the 400 ST1 Cascade Module 7 Proceed to the next section Installing and Connecting Multiple Switches on page 19 Caution Be sure that the module slides in on the guides provided Failure to align the guides could result in bent and broken pins Cascade A Out Cascade A In Unit Select Base...

Page 21: ...Switch guide for requirements and instructions for installing the BayStack 450 switch on a tabletop shelf or in a standard 19 inch utility rack 2 Disconnect the AC power cords if previously connected from the units you are configuring in the stack 3 Determine the stack order configuration stack up or stack down you are installing refer to Stack Configurations on page 10 4 Position the unit you wan...

Page 22: ...e up Base position Figure 9 6 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 Figure 9 Setting the Unit Select Switch Cascade A Out Cascade A In Unit Select Base BS0038A Off ...

Page 23: ...Base Unit unit 1 Figure 10 Installing Cascade Cables Cascade A Out Unit 2 1 Base unit 2 Last unit 3 Cascade cable PN 303978 A 4 Cascade max return cable PN 303979 A BS0039A Cascade A In Unit Select Cascade A Out Cascade A In Unit Select Unit 1 Cascade A Out Cascade A In Unit Select Cascade A Out Cascade A In Unit Select Unit 3 Unit 4 2 1 3 4 ...

Page 24: ... At the last unit in the stack connect one end of a cascade max return cable to the Cascade A Out connector Connect the other end of the cascade max return cable to the cascade A In connector on the base unit When stacking 3 or more units the optional 1 meter 39 27 inch cascade max return cable is required Bay Networks Part Number 303979 A 8 Be sure all cable connections to the cascade connectors ...

Page 25: ... is assigned a unit number that may be out of sequence with the stacking order If this happens you can renumber the units when you perform the initial setup of the stack as described in the Using the BayStack 450 10 100 1000 Series Switch guide Power up the stack configuration as follows 1 Plug the AC power cord for each switch in the stack configuration into the AC power receptacle on each switch...

Page 26: ...onfiguration check to see that the following LED indications are displayed on the switch LED display panels for all units configured in the stack Figure 11 The Pwr LED and Status LED for all units in the stack are all on green If the Pwr or Status LED for any unit in the stack is off or blinking refer to the troubleshooting chapter in the Using the BayStack 450 10 100 1000 Series Switch guide The ...

Page 27: ...nits in the stack are not as shown in Figure 11 cycle the power to the stack and verify the LEDs Refer to Using the BayStack 450 10 100 1000 Series Switch guide to set up the stack and for detailed information about stacking including troubleshooting 450 24T Switch 12 11 24 23 BayStack Cas BS0040A Cas Up Dwn Base Pwr Status RPSU Cas Up Dwn Base Pwr Status RPSU 1 Base unit only 2 All other units in...

Page 28: ...ommends that you renumber the entire stack after any modification involving configuration changes See the Using the BayStack 450 10 100 1000 Series Switch guide for more information about renumbering This section includes the following topics Assigning a new base unit to the stack Adding units to the stack Removing replacing units from the stack Note Renumbering causes the entire stack to be reset...

Page 29: ... See Figure 9 on page 20 for details about the Unit Select switch 2 Set the Unit Select switch on the new base unit to the Base position 3 Renumber the Stack See the Using the BayStack 450 10 100 1000 Series Switch guide for detailed information on how to renumber the stack configuration Note Bay Networks recommends that you always configure the top unit in the stack as the base unit ...

Page 30: ...nd 6 in Figure 12 show two new units to be added to the stack The new units are numbered as unit 5 and unit 6 because they are additions to an existing 4 unit stack 2 Disconnect the cascade cable from the Cascade A In connector at unit 3 Leave the other end of the cascade cable connected to the Cascade A Out connector at unit 2 3 For 19 inch rack configurations move the units two spaces lower in t...

Page 31: ...gure 12 Adding to Middle of Stack 4 Add the new units to the desired location For tabletop configurations replace units 1 and 2 temporarily moved in Step 4 1 Base unit 2 Last unit 3 Cascade cable PN 303978 A 4 Cascade max return cable PN 303979 A BS0041A Unit 2 Unit 1 Unit 4 Unit 3 2 1 4 3 O ut In ...

Page 32: ...ration if desired You can renumber the unit numbers as described in Setting Up the Stack Configuration in the Using the BayStack 450 10 100 1000 Series Switch guide Adding Units to the End of a Stack To add one or more units to the end of a stack complete the following steps 1 Determine the position of the new units in the existing stack Figure 13 For example the shaded units units 5 and 6 in Figu...

Page 33: ... return cable connected to the Cascade A In connector at unit 1 3 Add the new units units 5 and 6 to the end of the stack configuration 1 Base unit 2 Last unit 3 Cascade cable PN 303978 A 4 Cascade max return cable PN 303979 A BS0042A Unit 2 Unit 1 Unit 4 Unit 3 2 1 Cascade Module Cascade Module Cascade Module Cascade Module Cascade Module Cascade Module 4 In O ut 3 ...

Page 34: ...desired You can renumber the unit numbers as described in Setting Up the Stack Configuration in the Using the BayStack 450 10 100 1000 Series Switch guide Removing Replacing Units from the Stack This section describes how to remove and or replace units in an operating stack Because the Redundant Cascade Stacking feature allows signals to loopback at a single point of failure adjacent contiguous ca...

Page 35: ...n operating stack complete the following steps see Figure 14 1 Remove the cascade cable from the Cascade A Out connector at unit 2 Figure 14 Removing Adjacent Units 1 Base unit 2 Last unit BS0043A Unit 2 Unit 1 Unit 4 Unit 3 Unit 6 Unit 5 2 1 Cascade A Out In O ut Cascade A In ...

Page 36: ...0 10 100 1000 Series Switch guide Removing Replacing Nonadjacent Units To remove replace nonadjacent units from an operating stack complete the following steps see Figure 15 1 Remove the cascade cable from the Cascade A In connector at unit 3 2 Remove the cascade cable from the Cascade A Out connector at unit 3 3 Remove the unit unit 3 and install the replacement unit as required 4 Reconnect the c...

Page 37: ...der of the units for the new stack configuration if desired You can renumber the unit numbers as described in Setting Up the Stack Configuration in the Using the BayStack 450 10 100 1000 Series Switch guide 1 Base unit 2 Last unit BS0044A Unit 2 Unit 1 Unit 4 Unit 3 Unit 6 Unit 5 2 1 In O ut ...

Page 38: ...e files directly on the World Wide Web as follows 1 Go to support baynetworks com software ethernet baystack_450 html 2 Under the Operational Software heading click on Version 1 1 0 at the BayStack 450 boot code link Follow the prompts to download the BayStack 450 boot code image The boot code image filename is b4501101 img Note When upgrading the firmware image to software version V1 1 0 you must...

Page 39: ...itches be sure to obtain the latest version of the Using the BayStack 450 10 100 1000 Series Switch guide This guide provides instructions for setting up your stack configuration after you install the 400 ST1 Cascade Modules You can obtain the latest updates to your product documentation including release notes by visiting the Bay Networks Web site at the following location www support baynetworks...

Page 40: ... follows Twisted pair ports autonegotiation enabled Fiber optic ports 100 Mb s half duplex Gigabit MDA ports autonegotiation disabled Preferred Phy set to Right For detailed information about downloading a new software image see Chapter 3 Using the Console Interface in the Using the BayStack 450 10 100 1000 Series Switch guide ...

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