报错信息：
Time Level Message Service Number Count Message ID Switch
星期四 四月 03 2014 03:07:00 GMT+00:00 Information Switch status changed from MARGINAL to HEALTHY. Switch 8142 1 FW-1425 swd78_02
星期四 四月 03 2014 03:06:42 GMT+00:00 Warning Switch status changed from HEALTHY to MARGINAL. Switch 8140 1 FW-1424 swd78_02
星期四 四月 03 2014 03:06:42 GMT+00:00 Warning Switch status change contributing factor Marginal ports: 1 marginal ports. (Port(s) 15(0xf)) Switch 8141 1 FW-1436 swd78_02
星期四 四月 03 2014 03:06:07 GMT+00:00 Information The last fabric change happened at: Thu Apr 3 03:06:03 2014 Switch 8139 1 SNMP-1007 swd78_02
星期四 四月 03 2014 03:06:02 GMT+00:00 Warning Port (ID: 15) QOS is disabled Switch 8138 1 PORT-1010 swd78_02
星期四 四月 03 2014 01:17:15 GMT+00:00 Information The last fabric change happened at: Thu Apr 3 01:17:09 2014 Switch 8137 1 SNMP-1007 swd78_02
----------------------------------------------------------------- swd78_02:admin> porterrshow
frames enc crc too too bad enc disc link loss loss frjt fbsy
tx rx in err shrt long eof out c3 fail sync sig
===================================================================== 0: 2.3g 1.4g 0 0 0 0 0 19 32 0 3 6 0 0 1: 66 68 0 0 0 0 0 13 0 0 21 24 0 0 2: 49m 66m 0 0 0 0 0 0 4 0 3 6 0 0 3: 1.6m 821k 0 0 0 0 0 25 0 0 10 13 0 0 4: 1.2g 1.8g 0 0 0 0 0 0 27 0 3 6 0 0 5: 49m 15m 0 0 0 0 0 0 0 0 5 8 0 0 6: 277m 2.0g 0 0 0 0 0 0 0 0 3 6 0 0 7: 1.0m 540k 0 0 0 0 0 19 0 0 6 9 0 0 8: 267m 257m 0 0 0 0 0 10 0 0 2 4 0 0 9: 2.0g 2.0g 0 0 0 0 0 0 0 0 6 8 0 0 10: 0 0 0 0 0 0 0 0 0 0 0 2 0 0 11: 3.4g 1.5g 0 0 0 0 0 0 18 0 1 2 0 0 12: 19m 230m 0 0 0 0 0 0 0 0 2 4 0 0 13: 3.5m 1.3m 0 0 0 0 0 0 0 0 3 5 0 0 14: 2.6g 1.3g 0 0 0 0 0 8 11 0 6 8 0 0 15: 3.8g 1.0g 47 7 0 0 0 1.4m 2 8 38 58 0 0 swd78_02:admin> portshow 15
portName:
portHealth: HEALTHY
Authentication: None
portDisableReason: None
portCFlags: 0x1
portFlags: 0x1000490b PRESENT ACTIVE E_PORT G_PORT U_PORT LOGICAL_ONLINE LOGIN LED
portType: 11.0
POD Port: Port is licensed
portState: 1 Online
portPhys: 6 In_Sync
portScn: 16 E_Port
port generation number: 74
portId: 660f00
portIfId: 4302000f
portWwn: 20:0f:00:05:1e:7b:e7:bf
portWwn of device(s) connected:
Distance: normal
portSpeed: N1Gbps
LE domain: 0
FC Fastwrite: OFF
Interrupts: 1724 Link_failure: 8 Frjt: 0
Unknown: 0 Loss_of_sync: 38 Fbsy: 0 Lli: 1682 Loss_of_sig: 58
Proc_rqrd: 3153170 Protocol_err: 0
Timed_out: 0 Invalid_word: 1448546
Rx_flushed: 0 Invalid_crc: 7
Tx_unavail: 0 Delim_err: 0
Free_buffer: 0 Address_err: 0
Overrun: 0 Lr_in: 36
Suspended: 0 Lr_out: 15
Parity_err: 0 Ols_in: 15
2_parity_err: 0 Ols_out: 18
CMI_bus_err: 0
Brocade Switches – 如何确定是SFP 或是光纤线导致“Loss of Link（丢失链接）”问题 问题描述:
一个有问题的SFP或光纤线会造成丢失与主机，存储或另一台交换机的连接问题，在交换机的error log中可能有如下显示:
2007/12/06-23:50:56, [FW-1424], 7682,, WARNING, SWITCH_1, Switch status changed from HEALTHY to MARGINAL
2007/12/06-23:50:56, [FW-1436], 7683,, WARNING, SWITCH_1, Switch status change contributing factor Marginal ports: 1 marginal ports. (Port(s) x )
问题解决方法:
首先确定是由于SFP还是光纤线的问题造成链接丢失，执行下面的命令：
检查porterrshow命令的输出： 如果仅是"enc out "单独报错主要是因为光纤线的问题。
如果是"enc out "和"crc err "组合报错主要是GBIC/SFP的问题。
要确定是源端还是目标端SFP报错，需要再检查"portshow x" 的输出（x代表有问题端口号） 如果下面两对参数"Lr_in " 和 "Ols_out " 以及 "Lr_out " 和"Ols_in " 的值相同，则表明SFP运 行正常 如果一个数值明显高于另一个, 连接问题可能出现在交换机连接的对端("in" > "out") 或是交换机本身("out" > "in"). 注意：如果”Ols_in”的值高于“Lr_out”的值，问题的根源大多数情况与连接的设备相关，(sending those offline sequences) 并且交换机通过"link reset"对此做出响应。
参数解释：
enc_out -> Encoding error outside of frames
crc err -> Frames with CRC errors
Lr_in -> Link reset In (primitive sequence), does not apply to FL_Port
Lr_out -> Link reset Out (primitive sequence), does not apply to FL_Port
Ols_in -> Offline reset in (primitive sequence), does not apply to FL_Port
Ols_out -> offline reset out (primitive sequence), does not apply to FL_Port