This object is used to store the trace options that are enabled by the user. The bit positions of the traces is shown below Bit 0 - init-shut Bit 1 - mgmt Bit 2 - data Bit 3 - ctrl Bit 4 - pkt-dump Bit 5 - resource Bit 6 - all-fail Bit 7 - buf Bit 8 - neigh Bit 9 - vid-digest Bit 10 - mgmt-vid Bit 11 - - Bit 12 - - Bit 13 - critical Bit 14 - redundancy Bit 15 - chassis-id Bit 16 - port-id Bit 17 - ttl Bit 18 - port-descr Bit 19 - sys-name Bit 20 - sys-descr Bit 21 - sys-capab Bit 22 - mgmt-addr Bit 23 - port-vlan Bit 24 - ppvlan Bit 25 - vlan-name Bit 26 - proto-id Bit 27 - mac-phy Bit 28 - pwr-mdi Bit 29 - lagg Bit 30 - max-frame Bit 31 - dcbx-cee By default critical trace(Bit 13) is set.