Dell PowerEdge M710HD - Manual (Page 75)

About Your System 75
Cisco SFS M7000e Infiniband Switch Module
The Cisco SFS M7000e Infiniband switch module includes 24 4x DDR
Infiniband ports. Eight ports are external uplink ports, and 16 internal ports
provide connectivity to the blades in the enclosure. This switch module is
hot-swappable, and may be installed in Fabric B or Fabric C. For general
information on installing this module, see "I/O Modules" on page 296.
Table 1-20. Mellanox M2401G Infiniband Switch Indicators
Indicator Pattern Description
Link indicator Green, on Physical link established
Green, off No physical link present
Activity indicator Amber, on Valid logical link to Infiniband network
established
Amber, blinking Data transfer is in progress
Amber, off
No logical link to Infiniband network