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Hot Swapping
General Guidelines
• All component removals must have a 30 second interval before initiating another hot swap activity.
• All component insertions must have a five minute interval AND an LED state indicating that no errors
have occurred before initiating another hot swap activity.
• Hot swapping CMMs, CFMs, or power supplies is supported ONLY if more than one of these
components is installed. If only one CMM, CFM or power supply is installed and any of these
components is removed, switch functions will be disrupted until a replacement is installed.
• Refer to product release notes for additional guidelines on hot swapping.
Hot Swapping Power Supplies
Mixing AC and DC power supplies is not supported. Mixing of Hi (240VAC) and Low (110VAC) input is
not supported.
Hot Swapping CFMs
• Hot swap one CFM at a time.
• Ensure all fan trays are always inserted and operational.
• CFM hot swap should be completed within 120 seconds.
Hot Swapping NIs
• Disconnect all network cables from the module to be hot-swapped.
• Extract all transceivers from module to be hot-swapped, if applicable.
• Wait approximately 30 seconds before inserting a replacement module.
• Network Interface (NI) modules can only be hot swapped with like modules (refer to the
table below).
• Follow any messages that may displayed.
• Re-insert all transceivers into the new module, if applicable.
• Re-connect all network cables.
Hot Swapping Compatibility
Existing Slot Hot-Swap/Hot-Insert Compatibility
Empty All modules can be inserted
OS99-CMM OS99-CMM
OS9907-CFM OS9907-CFM
OS99-GNI-48 OS99-GNI-48
OS99-GNI-P48 OS99-GNI-P48
OS99-GNI-U48 OS99-GNI-U48
OS99-XNI-48 OS99-XNI-48
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