Skip to main content
NetApp Knowledge Base

Brocade switch ports flaps and goes automatically disabled

Views:
4,830
Visibility:
Public
Votes:
2
Category:
fabric-interconnect-and-management-switches
Specialty:
brocade
Last Updated:

 

 

Applies to

  • All Brocade switch hardware platforms
  • All Brocade Fabric Operating System (FOS) firmware levels

Issue

  • Brocade switch port being faulted switch disables the port to prevent flapping
  • Under switchshow, port state shows as "No_sync" or "No_Module"

Example:

errdump -a

WARNING, Brocade Fabric 1, Port 4 Faulted because of many Link Failures.
 
2022/03/17-21:47:29, [MAPS-2030], 1507, SLOT 1 | FID 128, WARNING, NETAPP_FAB1, slot6 port4, F-Port 6/4, Condition=ALL_TARGET_PORTS(STATE_CHG/min>3), Current Value:[STATE_CHG, 4], RuleName=defALL_TARGET_PORTSSTATE_CHG_3, Dashboard Category=Port Health.
2022/03/17-21:47:41, [MAPS-2030], 1508, SLOT 1 | FID 128, WARNING, NETAPP_FAB1, slot6 port4, F-Port 6/4, Condition=ALL_OTHER_F_PORTS(STATE_CHG/min>5), Current Value:[STATE_CHG, 6], RuleName=defALL_OTHER_F_PORTSSTATE_CHG_5, Dashboard Category=Port Health.
2022/03/23-14:25:14, [MAPS-2030], 1571, SLOT 1 | FID 128, WARNING, NETAPP_FAB1, slot6 port4, F-Port 6/4, Condition=ALL_TARGET_PORTS(STATE_CHG/min>3), Current Value:[STATE_CHG, 4], RuleName=defALL_TARGET_PORTSSTATE_CHG_3, Dashboard Category=Port Health.
2022/03/23-15:42:50, [MAPS-2030], 1581, SLOT 1 | FID 128, WARNING, NETAPP_FAB1, slot6 port4, F-Port 6/4, Condition=ALL_TARGET_PORTS(STATE_CHG/min>3), Current Value:[STATE_CHG, 4], RuleName=defALL_TARGET_PORTSSTATE_CHG_3, Dashboard Category=Port Health.
 
switchshow

64  4   4   150400   --   N32     No_Module   FC  Disabled

140 3 28 668c40 id N32 No_Sync FC Disabled

  • sfpshow indicates Tx is extremely low than the recommended one

sfpshow -all

RX Power:    -2.1    dBm (623.1uW)
TX Power:    -6.2    dBm (237.3 uW)

  • sfpshow indicatesRx & Tx are in optimal range

RX Power:    -1.9    dBm (652.9uW) 
TX Power:    -0.3    dBm (939.5 uW)

 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.