Dell PowerEdge M620 Owner's Manual page 76

Figure 1-31. Cisco SFS M7000e Infiniband Switch Module Features
1 Infiniband ports (8)
3 diagnostic status indicator
Table 1-21. Cisco SFS M7000e Infiniband Switch Indicators
Indicator Type Pattern
Infiniband Off
port status
Green flickering
indicator
Green on
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2 port status indicator (8)
4 power indicator
Description
Link error or Subnet Manager not operating
I/O activity on port
Link established
1
2
3
4