The Cisco StackWise interconnect technology is designed with two counter-rotating paths of 16 Gb each. In order to efficiently load balance traffic, packets are allocated between these two logical counter-rotating paths, which creates the 32-Gb interconnection. There are dual paths from any port to any other port within the Catalyst 3750 stack. Therefore, maximum uptime is ensured because there is always an alternate path available if a failure occurs in either path.
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