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在Fabric OS中、什么导致端口为No_Sync?

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fabric-interconnect-and-management-switches
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san
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适用场景

  • Brocade FC 交换机
  • 光纤操作系统(FOS)

问题解答

  • 与远程设备建立链路时、FC端口无法完成同步阶段、并且处于状态No_Sync
  • 显示的端口 No_Sync 表示端口正在接收指示灯、但接收到的帧处于"不同步"状态。
  • 可以 通过 porterrshow 增量进一步缩小出现故障的缆线或远程SFP的范围、或者在 statsclear   启用端口后进一步缩小范围:
  • 端口 关闭并在No_Sync中启用

示例:

switchshow:
Index Port Address  Media Speed   State     Proto
==================================================
  5   5   080500   id   16G   No_Sync   FC

portshow 5
portDisableReason: None
portCFlags: 0x1
portFlags: 0x4041    PRESENT U_PORT LED
LocalSwcFlags: 0x0
portType:  27.0
POD Port: Port is licensed
portState: 2   Offline
Protocol: FC
portPhys:  5   No_Sync     portScn:   2   Offline

sfpshow:
RX Power:   -7.0   dBm (199.8uW
TX Power:   -40.0   dBm (0.1   uW)

注: 端口脱机时、SFP的激光关闭(TX -40)

  • 在No_Sync中关闭并禁用端口

示例:

switchshow:
Index Slot Port Address Media  Speed     State   Proto
============================================================
 213   10   21   67d540   id   N32  No_Sync   FC  Disabled

portshow 213
portDisableReason: None
portCFlags: 0x0
portFlags: 0x4021   PRESENT U_PORT DISABLED LED
LocalSwcFlags: 0x0
portType:  26.0
portState: 2   Offline  
Protocol: FC
portPhys:  5   No_Sync     portScn:   2   Offline   

sfpshow:
RX Power:   -9.0   dBm (125.7uW)
TX Power:   -40.0   dBm (0.1   uW) 

  • 端口关闭、禁用、 有限制且处于No_Sync状态

示例:

switchshow:
Index Slot Port Address Media  Speed     State   Proto
============================================================
 383   12   47   67f7c0   id   N32  No_Sync    FC  Disabled (Port Throttled)

portshow 383
portDisableReason: None
portCFlags: 0x1
portFlags: 0x41   PRESENT U_PORT
LocalSwcFlags: 0x0
portType:  26.0
portState: 2   Offline  
Protocol: FC
portPhys:  5   No_Sync     portScn:   2   Offline   

sfpshow:
RX Power:   -3.1   dBm (494.9uW) 
TX Power:   -40.0   dBm (0.1   uW) 

  • 这可能需要进一步分析 (supportshow /supportsave)

追加信息

 

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