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Cisco SFS 7012 InfiniBand Server Switch Hardware Users Guide
OL-8787-04
Chapter
Note Spine chips are referenced by the spine number and the switch chip identifier. Each spine module
contains two switch chips (Switch chip A and B).
Port Statistics Field Descriptions
Port Name/Port Number:
Corresponds to external leaf module number/port number, spine module number/port number, and
all interswtich links.
Link State:
Indicates whether the InfiniBand link associated with the physical port is up or down. Possible
values are no state change, down, init, armed, active, and unknown.
Physical State:
Indicates whether the internal connection to the InfiniBand port is up or down. Possible values are
No State Change, Sleep, Polling, Disabled, Training, Up, and Error Recovery.
Link Down Default:
Indicates the default down state as set by the subnet manager. Possible values are No State Change,
Sleep, Polling, and Unknown.
Active Link Width:
Indicates the bandwidth of the link on the backplane. The bandwidth is specified as a multiplier of
2.5 Gbit/sec full duplex serial links. As an example, 4X specifies a bandwidth of 10 Gbit/sec.
Note Values of 1X are possible in this field with 4X IB cables if poor cable connections or defective
4X IB cables are used.
Link Width Enabled:
Indicates actual link width as opposed to the supported link width.
Link Width Supported:
Indicates the link width in terms of multipliers of 2.5 Gbit/sec full duplex serial links supported by
the port.
Active Link Speed:
Indicates the speed of the full duplex serial link. This is either 2.5Gbps (single data rate, or SDR),
or 5.0Gbps (double data rate, or DDR).
Link Speed enabled:
Indicates the actual link speed as opposed to the supported link speed. This could be 2.5Gbps (SDR),
5.0Gbps (DDR) or both.
Link Speed supported:
The supported link speed of the port. This could be 2.5Gbps (SDR), 5.0Gbps (DDR) or both.
InfiniBand Statistics:
Transmit 32 Bit Words:
The number of 32-bit data words transmitted by the port, not including flow control and VCRC data.