Cisco UCS and VLAN conflicts

If you ever find yourself with conflicting VLANs as a result of a UCS code upgrade, don’t panic. If, like us, you use NFS, and the NFS VLAN conflicted with a VSAN FCoE VLAN, you’ll likely have impacted your NFS VLAN. Once the conflict was resolved by moving the VSAN FCoE VLAN to an unused one, we still had no network traffic on the VLAN we use for NFS. We had to change the VLAN number for that VLAN to something else, commit the change, then change it back. This forced a refresh of the VLAN config and restored connectivity.

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