We are using some FS 40Gb DAC cables to connect MS355-24s to Force 10 blade switches: FS - 40GBASE-CR4: 10.3 Gbps (Part QSFP-PC02, Serial: F2033816787-1 ). We have also successfully used Dell 40Gb DAC cables. We haven't tried with MS425s as we don't have any...
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