What are CRC errors and how to resolve them with FC and Brocade switch running any version of Fabric OS
Applies to
- Brocade switch running any version of Fabric OS
- SAN Protocol
Issue
This KB covers what CRC errors are on a switch, how to diagnose and how to resolve them.
The "porterrshow" output on a switch will display CRC errors in the CRC field.
frames enc crc crc too too bad enc disc link loss loss frjt fbsy c3timeout
tx rx in err g_eof shrt long eof out c3 fail sync sig tx rx
=======================================================================================================================
0: 7.5m 8.7m 0 0 0 0 0 0 316 30 4 506 612 0 0 0 0
1: 3.2g 716.8m 0 11 11 0 0 0 19 14 8 11 14 0 0 0 0
2: 415.9m 3.4g 1.7m 121.8k 84.2k 85 0 37.5k 59.8k 1.5k 6 9 12 0 0 1.5k 0
Additionally, the host may experience random disconnects and/or latency.