1Q: We are testing a Cisco N540-24Q8L2DD-SYS with 3rd party QSFP-100G-ZR4-S modules. Apparently, the Cisco IOS XR doesn‘t support a QSFP-100G-ZR4-S yet, so these are coded as QSFP-100G-ELR4 to be recognized by the Cisco IOS. They appear to work fine …
