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Unsupported cable on BES-53248 ISL port causes wrong port speed

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Category:
fabric-interconnect-and-management-switches
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brocade
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Applies to

  • BES-53284
  • EFOS 3.9.0.2

Issue

  • Port showing Unknown QSFP and unsupported cable
0/55      4     FS                 0      0        1M Y2105207200-2    Q28-PC01         25500    A    Unknown QSFP
0/56      4     FS                 0      0        1M Y2105207150-2    Q28-PC01         25500    A    100GBase
 
  • Port reports up but is operationally down, also is reporting the wrong port speed despite being a 100G only cable and port. 
Log.    Channel                     Admin       Mbr     Device/       Port      Port
Intf    Name            Min  Link   Mode   Type Ports   Timeout       Speed     Active
------- --------------- ---- ------ ------ ---- ------- ------------- --------- -------
1/1     Cluster-ISL     1    Up     En.    Dyn. 0/55    actor/long    40G Full  False
                                                        partner/long
                                                0/56    actor/long    Auto      True
                                                        partner/long

0/55     PC Mbr Enable    40G Full   40G Full  Up     Enable  Enable long

0/56     PC Mbr Enable    Auto       100GFull  Up     Enable  Enable long

  • Reseating cable and performing shut/no shut of port does not resolve issue.

 

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