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Can 100G QSFP28 interfaces interoperate with SR10 based 100GbE?

By H***n on 06/10/2017

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  • No. The 100G QSFP28 form factor has just 4 electrical lanes, which is not enough to support 10 lanes of 10G electrical interface. A 100G QSFP can only support a 4x10G or 4x25G electrical interface, which can be used as 4x10GbE or 4x25GbE, but 100G CFP can be used as 10x 10GbE.As a result the 100G QSFP SR4 cannot interoperate with SR10 based 100GbE transceivers.By M***w on 06/10/2017
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