Hardware Redundancy

This section focuses on the Catalyst 6500 switches' hardware redundancy capabilities. These features include redundant power supplies, a hot-swappable fan, hot-swappable modules, redundant Supervisor Engines, and redundant Route Processors. Please note that the Catalyst 4500s, 3550s, and 2950s support some of these features, but not necessarily all of them.

Power Supplies

Some of the first things considered in redundancy are your power source and power supplies. Without an Uninterruptible Power Supply (UPS) system, a loss of power, even with redundant power supplies, is going to do no good. Likewise, if you have redundant power supplies, you want to ensure that they are connected to different power circuits. If you connect ...

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