Dell EMC PowerEdge C6420 - Internal View of the System

Figure 4. LAN indicators on the QSFP mezzanine card
1 Link indicator 2 Activity indicator
Table 2. QSFP port on mezzanine card indicator codes
Connection State QSFP Upper green LED QSFP Lower green LED
No link/Not Connected O O
InniBand Physical Link - No Logical Link Green O
InniBand Logical Link - No Trac Green Green
InniBand Logical Link - Trac Green Blink
InniBand Physical Link Issue Blink Green
Ethernet Link - No Trac Green Green
Ethernet - Trac Green Blink
NOTE: The LED blink speed varies according to the trac bandwidth.
Figure 5. Ethernet port indicator codes
1
speed indicator 2 link and activity indicator
Dell EMC PowerEdge C6420 overview 11