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Switch port 'x' is in an unhealthy state/ Errors on switch port 'x'

Last Updated:

Applies to

  • Fiber Channel Protocol (FCP)
  • SAN
  • Brocade
  • Cisco



A switch port in Brocade/Cisco is in an unhealthy state or there are several errors on a switch port.

  • Switch logs (Brocade):
2020/03/10-10:20:06, [C4-1010], 13033, SLOT X CHASSIS, CRITICAL, Brocade_XX-X, X,X: Above normal hardware errors were observed: fault1:0x64, fault2:0x64 thresh2:0xb0000064.2019/06/01-08:39:16, [C3-1014], 74, CHASSIS, WARNING, xxxxx,  Link Reset on Port Sx,Px(x) vc_no=0 crd(s)lost=x auto trigge
  • Switch logs (Cisco):

2020 Aug 25 04:26:00 %PORT-5-IF_DOWN_NOS_RCVD: %$VSAN 451%$ Interface fc1/13 is down (NOS received)

  • Low TX or RX Power values:
RX Power:    -40.0   dBm (0.1  uW)   31.6   uW  1258.9 uW  31.6   uW   794.0  uW
TX Power:    -2.2    dBm (600.1 uW)  126.0  uW  1258.9 uW  251.0  uW   794.0  uW
  • Performance issues:
2020/05/19-20:08:21, [AN-1010], 687622, FID 128, WARNING, XXXX, Severe latency bottleneck detected at slot 0 port 


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