i have a N9K-C93180LC-EX and refering to the cisco website it is showing that this device support " Nexus 9K Fixed with up to 32p 40/50G QSFP+ or up to 18p 100G QSFP28" i want to know can i conifgure 10x port to working as 100g and 14x port as 40g/50g or 10g using breakout?

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The Cisco Nexus 93180LC-EX Switch is the industry’s first 50-Gbps-capable 1RU switch that supports 3.6 Tbps of bandwidth and over 2.6 bpps across up to 32 fixed 40- and 50-Gbps QSFP+ ports or up to 18 fixed 100-Gbps ports (Figure 3). The switch can support up to 72 10-Gbps ports using breakout cables. A variety of flexible port configurations are supported using templates.

That description from the Cisco data sheet indicates it is flexible enough to support a variety of mixed interface configurations but is constrained to certain templates. This link shows how those templates work. Basically you have to configure the ports in specific pairs of vertically aligned ports and even numbers. So your design of 10 at 100 gig and 14 at a lower speed might be supported, yes.

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