Smart Rate Technology
Smart Rate is a new technology designed to enable higher port link speeds on legacy cabling where an Ethernet
RJ45 port type can link at 1Gbps, 2.5Gbps, 5Gbps, or 10Gbps.
When situations occur where a network link establishes at a lower than expected speed (or not at all) due to
marginal or bad cabling, the Smart Rate port technology allows administrators to triage cabling issues and
determine root causes of lower than expected performance.
Smart Rate Technology is available on the following products:
Switch 5400R v3 zl2 modules (J9991A, J9995A)
Switch 5400R chassis switch bundles (JL002A)
Show Smart Rate port
Syntax
show interface
PORT-LIST
smartrate
Displays port diagnostics on a Smart Rate port.
Unlinked Smart Rate port
show interface C5 smartrate
Status and Counters - Smart Rate information for Port C5
Model : 0x03a1
Chip : 0xb4b3
Firmware (major) : 0x0002
Firmware (minor) : 0x0003
Firmware (candidate) : 0x0005
Firmware (provision) : 0x0001
Chan1 Chan2 Chan3 Chan4 (in db)
Current SNR 9.000000 6.700000 3.500000 9.200000
Minimum SNR 9.000000 6.700000 3.500000 9.200000
CRC8 errors: 0
LDPC errors: 0
LDPC 1 iteration: 27620089
LDPC 2 iterations: 954117
LDPC 3 iterations: 0
LDPC 4 iterations: 0
LDPC 5 iterations: 0
LDPC 6 iterations: 0
LDPC 7 iterations: 0
LDPC 8 iterations: 0
23 Number of fast retrains requested by Local Device.
32 Number of fast retrains requested by Link Partner.
Appendix D
Smart Rate Technology
Appendix D Smart Rate Technology
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