User guide

September 2009
Page 78 of 79 OmniSwitch 6400/6850/6855/9000/9000E—Release 6.4.2.R01
• Hot insertion of unlike modules is not supported.
• The reload ni command is not supported. Please use no power ni/power ni as an alternative.
• All insertions of NI modules cannot be followed by another hot swap activity until the OK2 LED on
the inserted NI blinks green.
Hot Swap Feature Exceptions for OmniSwitch 6400/6850/6855
• When removing modules from the stack (powering off the module and/or pulling out its stacking
cables), the loop back stacking cable must be present at all times to guarantee redundancy. If a module
is removed from the stack, rearrange the stacking cables to establish the loopback before attempting to
remove a second unit.
• When inserting a new module in the stack, the loop back has to be broken. Full redundancy is not guar-
anteed until the loop back is restored.
Hot Swap Time Limitations for OmniSwitch
• All removals of NI modules must have a 30 second interval before initiating another hot swap activity.
• All insertions of NI modules must have a 3 minute interval before initiating another hot swap activity.
• All hot swaps of CMM modules must have a 10 minute interval before initiating another hot swap,
reload or takeover activity.
• All takeovers must have a 10 minute interval before following with another hot swap, reload or take-
over activity.
• All insertions of stack elements must be done one at a time and the inserted element must be fully
integrated and operational as part of the stack before inserting another element.