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Faulty port in Brocade/Broadcom switch

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879
Visibility:
Public
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0
Category:
fabric-interconnect-and-management-switches
Specialty:
brocade
Last Updated:

Applies to

  • Brocade switches
  • ONTAP
  • VMWare

Issue

  • VMware corruption may occur with flapping switch port causing FC frame drops on target ports.
    • esxcli storage san fc events get
    • tail –f /var/log/vmkernel.log
  • ONTAP events indicating instability in the FC conenction
    • event log show -event *fct* -time < 10m
  • FC switch port is in an 'Offline' state:
portshow 01
portDisableReason: None
portCFlags: XXX
portFlags: XXXXXX       PRESENT U_PORT DISABLED LED
LocalSwcFlags: XXX
portType:  26.0
POD Port: Port is licensed
portState: 2   Offline
Protocol: FC
portPhys:  5    No_Sync         portScn:   2   Offline
port generation number:   XXXXXX
state transition count:   XXXX
  • Link reset errors in the switch logs
2023/11/10-03:06:37 (CST), [XX-XXXX], XXXXXX, CHASSIS | PORT 0/01, WARNING,
BrocadeG620,  Link Reset on PortS0,P01(0) vc_no=2 crd(s)lost=1104 auto trigger.
  • When plugging the SFP into a different port, it works as normal
  • When plugging a known good SFP into this port, it does not work
  • On the switch side, the SFP power range is abnormal:
RX Power:    -2.4    dBm (571.4uW)
TX Power:    -inf    dBm (0.0  uW)

 

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