Nortel business policy switch 2000, User Manual

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374 Appendix B Interoperability in a mixed stack configuration
208700-C
a
On the unit that was the Base Unit of this stack, use the Unit Select switch
to deselect it as the Base Unit.
b Redo all the cabling so that all units will work as one stack.
4 Power-up the newly joined units by plugging in the power cords.
It may take a few minutes for the entire stack to display on the console. All units
will show as their new numbers within the newly joined stack.
Troubleshooting problems
If you suspect problems with a newly installed mixed stack configuration, start
troubleshooting by verifying the following items:
• A Business Policy Switch is designated as the base unit.
• All other units in the stack have the base unit select switch set to Off.
• The Business Policy Switch’s operational mode is set to Hybrid Stack, and the
unit has been reset after changing the operational mode (
Figure 136 ).
• All units in the stack exhibit the same ISVN.
• All units must be reset when you add a Business Policy Switch to an existing
BayStack 450 and 410 switch stack.
• All Business Policy Switches have the same software version. Similarly, all
BayStack 450 and BayStack 410 switches are operating with updated and
compatible software.
• When the stack is powered up, ensure that the Cas Up and Cas Dwn (cascade)
and Base LEDs are green (steady, not blinking).