We have replaced couple of our 2960CPD-8PT-L with C1000-8FP-2G. On the interfaces that are configured as trunk, the "duplex" command isn't available. Can any C1000 user confirm that? Thanks
try disbale auto nego and then hardcoded the Speed/duplex
Speed and duplex is not supported on SFP ports.
The small form-factor pluggable (SFP) gigabit LH transceiver provides a full-duplex gigabit solution up to 70 km on single-mode fiber.
standardized speeds from 10Mbps up to its maximum supported speed (e.g. a GigE NIC speaks 10, 100, and 1000Mbps), an optical Ethernet module usually support only the specific transmission speed
The duplex can not be changed.
Hope that is clear now.
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