Dell C9000 Series Networking Configuration Manual page 1132

(Up): Interface up (Dwn): Interface down (Dis): Interface disabled
Uplink State Group
Upstream Interfaces
Downstream Interfaces : Te 0/1(Dis) Te 0/2(Dwn) Te 0/5(Dwn) Te 0/9(Dwn) Te
0/11(Dwn)
Te 0/12(Dwn)
: 3 Status: Enabled, Up
: Te 0/3(Up) Te 0/4(Dwn)
Uplink Failure Detection (UFD) 1132