How to display DCB settings on ESXi

May be it is possible with vsish undocumented tool.

vsish -e get /config/Net/intOpts/DCBEnable
vsish -e get /config/Net/intOpts/NetUplinkDCBPollIntrvl

vsish configurations

Other potential possibility is to change some setting to increase log verbosity:

vsish -e set /system/modules/vmklinux_9/loglevels/LinCNA 4
vsish -e set /system/modules/libfc_92/loglevels/libfc 31
vsish -e set /system/modules/libfcoe_92/loglevels/libfcoe 255;