Brocade switch port flapped and went offline due to faulty switch end SFP
Applies to
- All Brocade switch hardware platforms
- All Brocade Fabric Operating System (FOS) firmware levels
Issue
- Port state is In_sync
254 12 30 68fe40 id N32 In_Sync FC
- Port show displays the port as offline
portshow 254
portDisableReason: None
portCFlags: 0x1
portFlags: 0x4041 PRESENT U_PORT LED
LocalSwcFlags: 0x0
portType: 26.0
portState: 2 Offline
- Fabric log shows port has flapped multiple times
15:16:55.961101 SCN Port Offline;rsn=0x4,g=0x3b7e A2,P0 A2,P0 254 NA
15:16:55.961107 *Removing all nodes from port A2,P0 A2,P0 254 NA
15:17:40.649127 SCN LR_PORT(0);g=0x3b7e A2,P0 A2,P0 254 NA
15:17:40.695392 SCN Port Online; g=0x3b7e,isolated=0 A2,P0 A2,P1 254 NA
15:17:40.695851 Port Elp engaged A2,P1 A2,P0 254 NA
15:17:40.695865 *Removing all nodes from port A2,P0 A2,P0 254 NA
15:17:40.696094 SCN Port F_PORT A2,P1 A2,P0 254 NA
16:02:58.997554 SCN Port Offline;rsn=0x4,g=0x3b80 A2,P0 A2,P0 254 NA
16:02:58.997560 *Removing all nodes from port A2,P0 A2,P0 254 NA
16:02:59.008547 SCN LR_PORT(0);g=0x3b80 A2,P0 A2,P0 254 NA
- sfpshow displays port has low Tx value
Slot 12/Port 30:
=============
Identifier: 3 SFP
Connector: 7 LC
Transceiver: 6804404000000000 8,16,32_Gbps M5 sw Short_dist
Encoding: 6 64B66B
Vendor Name: BROCADE
Vendor OUI: 00:05:1e
Vendor PN: 57-1000333-01
BR Min: 0
Serial No: JAF418510000PG1
Date Code: 181219
Temperature: 50 Centigrade
Current: 6.542 mAmps
Voltage: 3325.5 mVolts
RX Power: -2.9 dBm (518.3uW)
TX Power: -40.0 dBm (0.1 uW)
- Porterr show reports link fail error
/fabos/cliexec/porterrshow :
frames enc crc crc too too bad enc disc link loss loss frjt fbsy c3timeout pcs uncor
tx rx in err g_eof shrt long eof out c3 fail sync sig tx rx err err
254: 5.0k 5.0k 0 0 0 0 0 0 156 0 2.0k 234 3 0 0 0 0 0 0