Cisco N5K-M1600 - Expansion Module - 6 Ports Troubleshooting Manual page 125

Chapter 5 Troubleshooting SAN Switching Issues
S e n d d o c u m e n t c o m m e n t s t o n e x u s 5 k - d o c f e e d b a c k @ c i s c o . c o m .
Troubleshooting Fibre Channel MAC issues
The show hardware command is very useful when troubleshooting FC physical layer issues.
Show hardware internal fc-mac <x> port <y> statistics
The output of the command contains the following useful information:
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•
•
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Example:
switch# show hardware internal fc-mac 2 port 1 statistics
ADDRESS
__________ ________
0x0000003c FCP_CNTR_MAC_RX_LOSS_OF_SYNC
0x0000003d FCP_CNTR_MAC_RX_BAD_WORDS_FROM_DECODER
0x00000042 FCP_CNTR_MAC_CREDIT_IG_XG_MUX_SEND_RRDY_REQ
0x00000043 FCP_CNTR_MAC_CREDIT_EG_DEC_RRDY
0x00000061 FCP_CNTR_MAC_DATA_RX_CLASS3_FRAMES
0x00000062 FCP_CNTR_MAC_DATA_RX_CLASSF_FRAMES
0x00000069 FCP_CNTR_MAC_DATA_RX_CLASS3_WORDS
0x0000006a FCP_CNTR_MAC_DATA_RX_CLASSF_WORDS
0x00000065 FCP_CNTR_MAC_DATA_TX_CLASS3_FRAMES
0x00000066 FCP_CNTR_MAC_DATA_TX_CLASSF_FRAMES
0x0000006d FCP_CNTR_MAC_DATA_TX_CLASS3_WORDS
0x0000006e FCP_CNTR_MAC_DATA_TX_CLASSF_WORDS
0xffffffff FCP_CNTR_LINK_RESET_IN
0xffffffff FCP_CNTR_OLS_OUT
0xffffffff FCP_CNTR_NOS_OUT
0xffffffff FCP_CNTR_LRR_OUT
0xffffffff FCP_CNTR_LINK_FAILURE
OL-25300-01
Physical layer information
FCP_CNTR_MAC_RX_LOSS_OF_SYNC - Loss of Sync received counter
Performance information
FCP_CNTR_MAC_CREDIT_IG_XG_MUX_SEND_RRDY_REQ - Receiver Ready's Sent
FCP_CNTR_MAC_CREDIT_EG_DEC_RRDY - Receiver Ready's Received
Class 3 normal traffic counters
FCP_CNTR_MAC_DATA_RX_CLASS3_FRAMES
FCP_CNTR_MAC_DATA_RX_CLASSF_FRAMES
FCP_CNTR_MAC_DATA_RX_CLASS3_WORDS
FCP_CNTR_MAC_DATA_RX_CLASSF_WORDS
FCP_CNTR_MAC_DATA_TX_CLASS3_FRAMES
FCP_CNTR_MAC_DATA_TX_CLASSF_FRAMES
FCP_CNTR_MAC_DATA_TX_CLASS3_WORDS
FCP_CNTR_MAC_DATA_TX_CLASSF_WORDS
Fibre Channel primitive sequences
FCP_CNTR_LINK_RESET_IN - Link Resets Received
FCP_CNTR_OLS_OUT- Offline Sequences Sent
FCP_CNTR_NOS_OUT - Not Operational Sequence Sent
FCP_CNTR_LRR_OUT - Link Reset Responses Sent
FCP_CNTR_LINK_FAILURE
STAT COUNT
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Cisco Nexus 5000 Series Troubleshooting Guide
Registers and Counters
0x5
0xec
0x5ec
0xc41
0x5d2
0x1a
0x140b14
0xdcc
0xc24
0x1d
0x4b9538
0xabc
0x2
0x5
0x2
0x7
0x2
5-53