由于终端设备SFP出现故障、Brocade FC端口脱机并处于No_Sync状态

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Category:: fabric-interconnect-and-management-switches<a>2009412512</a>

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适用场景

Brocade FC 交换机
光纤操作系统(FOS)

问题描述

Brocade光纤通道端口处于 No_sync Disabledswitchshow 输出下的状态：

/fabos/bin/switchshow : Index Slot Port Address Media Speed State Proto ============================================================ 120 4 24 6f7800 id N32 No_Sync FC Disabled (Port Throttled)

152 4 24 0f9840 id N32 No_Sync FC Disabled (Port State Change threshold exceeded)

PCS error ， uncorr error 以及 link fail loss signal errors 在下报告的 porterrshow

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 152: 22.6k 15.2k 0 0 0 0 0 0 0 0 16 17 17 0 0 0 0 4.1k 1.1k

defALL_HOST_PORTSITW_21 在受影响交换机端口上通过 errdump以下命令报告的规则：

2023/01/06-01:18:52, [MAPS-1003], 207782, SLOT 2 | FID 128, WARNING, switch, slot12 port37, F-Port 12/37, Condition=ALL_HOST_PORTS(ITW/min>21), Current Value:[ITW, 5616 ITWs], RuleName=defALL_HOST_PORTSITW_21, Dashboard Category=Port Health. 2023/01/06-16:45:46, [MAPS-1003], 208332, SLOT 2 | FID 128, WARNING, switch, slot12 port37, F-Port 12/37, Condition=ALL_HOST_PORTS(ITW/min>21), Current Value:[ITW, 1764 ITWs], RuleName=defALL_HOST_PORTSITW_21, Dashboard Category=Port Health.

sfpshow 报告建议范围内的Tx和Rx功率

============= Slot 4/Port 24: =============

RX Power: -0.6 dBm (861.3uW) TX Power: -0.3 dBm (933.0 uW)

由于端口处于 Disabled 状态、 sfpshow 输出报告Tx功率非常低、Rx功率接近阈值。

Slot 4/Port 24: ============= RX Power: -3.5 dBm (451.1uW) TX Power: -40.0 dBm (0.1 uW)

sfpshow 将低Rx和Tx功率报告为 -inf:

============= Slot 12/Port 37: ============= RX Power: -8.8 dBm (132.0uW) TX Power: -inf dBm (0.0 uW)

Porterrshow 不会报告交换机端口上的任何错误。

/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 238: 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

sfpshow 报告建议范围内的Tx功率、但报告的Rx功率较低。

RX Power: -9.9 dBm (102.6uW) TX Power: -0.8 dBm (837.1 uW)

多个 link resets 报告依据 errdump：

2022/11/11-18:22:58, [C5-1014], 17914, SLOT 1 | CHASSIS, WARNING, XXX, Link Reset on Port S6,P296(120) vc_no=3 crd(s)lost=1 auto trigger. 2022/11/11-18:29:41, [C5-1040], 17915, SLOT 1 | CHASSIS, WARNING, XXX, Multi RDY/Frame Loss detected on Slot 6, Port 296(120) m_rdy(0x0)/m_frame(0x1). Link Reset done. 2022/11/11-18:29:41, [C5-1014], 17916, SLOT 1 | CHASSIS, WARNING, XXX, Link Reset on Port S6,P296(120) vc_no=0 crd(s)lost=1 auto trigger. 2022/11/11-18:39:24, [C5-1023], 17918, SLOT 1 | CHASSIS, WARNING, XXX, Single RDY/Frame Loss detected and recovered on Slot 6,Port 296(120) rdy(0x0)/frame(0x1). 2022/11/11-18:43:46, [C5-1040], 17919, SLOT 1 | CHASSIS, WARNING, XXX, Multi RDY/Frame Loss detected on Slot 6, Port 296(120) m_rdy(0x0)/m_frame(0x1). Link Reset done. 2022/11/11-18:43:46, [C5-1014], 17920, SLOT 1 | CHASSIS, WARNING, XXX, Link Reset on Port S6,P296(120) vc_no=0 crd(s)lost=1 auto trigger.

连接到Brocade交换机的NetApp端口的状态显示为Link Disconnected""

slot 0: Fibre Channel Target Host Adapter 0e (QLogic 8324 (8362) rev. 2, <LINK DISCONNECTED>) Firmware rev: 8.9.0 Flash rev: 5.0.2 Host Port Addr: 000000

连接到交换机端口的NetApp端口显示Rx和Tx：0.0 (uWatt)

Brocade交换机端口报告""No_Light状态。

Index Slot Port Address Media Speed State Proto ============================================================ 202 9 26 01ca00 id N32 No_Light FC

portshow 交换机上的输出报告 portstate 为Offline""。

portshow 202 portDisableReason: None portCFlags: 0x1 portFlags: 0x41PRESENT LocalSwcFlags: 0x0 portType: 26.0 portState: Offline Protocol: FC portPhys: No_Light

以下是应遵循的一些故障排除步骤：
- `验证交换机端SFP Tx和Rx电源是否在建议范围内。
- 要进行故障隔离，请交换交换机端SFP并执行电缆测试。
- 如果问题仍然存在、则必须检查终端设备。更换交换机端SFP并测试缆线后、联系主机供应商寻求帮助。
- 检查HHBA/host并确认HBA能够运行的速度、然后尝试使用 portCfgSpeed 命令和check相应地(手动)设置交换机端口的速度。