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Brocade G720 Fibre channel all 4 Switches 2nd ISL going up and down

  1. Last updated
    Mar 12, 2025
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Category:
fabric-interconnect-and-management-switches
Specialty:
MetroCluster
Last Updated:
3/12/2025, 4:43:38 AM

Applies to

  • Broadcom Brocade FC

Issue

  • Brocade G720 32 Gb/s Fibre channel Switches 2nd ISL link going up and down

  • Setting port speed to 16 Gb/s keeps link up

Example: 

Sfpshow<port_index>

  • Check and compare receive optical (RX )power
  • Faulty link has negative - value for dbm

 

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