Are you looking for Mean Time to Repair, or Mean Time Before Failure? ( MTBF )

MTTR is variable as the level of repair can be a simple non-supervisor blade replacement or a more complex chassis replacement. It depends on the model in question and what it would take in any particular environment to repair/replace failed systems/components.

MTBF is what Cisco publishes on it's product line.

See and example:

Cisco published MTBF numbers often go upwards of 100,000 hours and are expressed in years in some cases.

Hope this helps.


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