Thursday, June 3, 2021

QSFP+ to SFP+ Dark Fiber

Hi - our datacenter is giving us a dark fiber pair to connect two racks. They will be LC handoffs.

The problem is, we have Cisco Nexus on one side with 40/100 QSFP+ ports and Cisco 550X on the other with 10Gbps SFP+.

Can I use a 40Gbps QSFP+ LC transceiver on the Nexus side and connect it to a 10Gbps LC transceiver on the SFP+ side, and have it communicate at 10Gbps?



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