Skip to main content
NetApp Knowledge Base

Brocade FC port offline with No_Sync state and -inf TX power

  1. Last updated
  2. Save as PDF
Views:
4,982
Visibility:
Public
Votes:
3
Category:
fabric-interconnect-and-management-switches
Specialty:
brocade
Last Updated:

Applies to

  • Brocade FC Switch
  • Fabric OS (FOS)

Issue

  • Brocade fiber channel port is in No_sync state with multiple link failure ,sync_loss and pcs errors reported on the porterrshow.

/fabos/bin/switchshow :
Index Slot Port Address Media  Speed        State    Proto
============================================================
 347   10   43   65d3c0   id    AN       No_Sync     FC  

/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
347:  343      0      0      0      0      0      0      0      3      0    244    246      3      0      0      0      0      363K      0   

  • Brocade fiber channel port is in No_sync and Disabled state

Index Port Address  Media Speed   State       Proto
==================================================
  0   0   010000   id    N16      No_Sync     FC  Disabled

 

  • In sfpshow XX (where XX is the sfp number) TX indicates -inf 

=============
Slot  3/Port  0:
=============
Identifier:  3    SFP
Connector:   7    LC
Transceiver: 6804404000000000 8,16,32_Gbps M5 sw Short_dist
Encoding:    6    64B66B 

.............................................

RX Power: -0.1 dBm (987.2uW)
TX Power: -inf dBm (0.0 uW)
 

  • Errdump may log errors related to port resets

        2023/03/01-13:10:37, [C3-1014], 2269, CHASSIS, WARNING, Brocade6505, Link Reset on Port S0,P0(0) vc_no=0 crd(s)lost=12   auto trigger. 2023/03/01-13:10:45, [C3-1014], 2270, CHASSIS, WARNING, Brocade6505, Link Reset on Port S0,P0(0) vc_no=0   crd(s)lost=12 auto trigger. 
  • ITW errors observed for the port in errdump:

2023/01/06-00:33:20, [MAPS-1003], 514473, SLOT 1 | FID 128, WARNING, Sify_X6_104_FAB2, slot12 port47, F-Port 12/47, Condition=ALL_HOST_PORTS(ITW/min>21), Current Value:[ITW, 36624 ITWs], RuleName=defALL_HOST_PORTSITW_21, Dashboard Category=Port Health.
2023/01/06-00:34:20, [MAPS-1003], 514475, SLOT 1 | FID 128, WARNING, Sify_X6_104_FAB2, slot12 port47, F-Port 12/47, Condition=ALL_HOST_PORTS(ITW/min>21), Current Value:[ITW, 36526 ITWs], RuleName=defALL_HOST_PORTSITW_21, Dashboard Category=Port Health.
2023/01/06-00:35:20, [MAPS-1003], 514480, SLOT 1 | FID 128, WARNING, Sify_X6_104_FAB2, slot12 port47, F-Port 12/47, Condition=ALL_HOST_PORTS(ITW/min>21), Current Value:[ITW, 36559 ITWs], RuleName=defALL_HOST_PORTSITW_21, Dashboard Category=Port Health

 

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.