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One port in a 40Gb card using 4x 10Gb breakout QSFPs is down

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hw
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Applies to

  • Single network port in breakout QSFP cable (4x10)
  • 10/40 Gigabit Ethernet PCIe card XL710 QSFP+ P/N X1144A
  • Cluster network connectivity

Issue

  • One cluster port down. Example:

slot 4: 10/40 Gigabit Ethernet Controller XL710 QSFP+
    e4a MAC Address:    00:a0:98:ed:91:73 (auto-10g_twinax-fd-up)
        QSFP Vendor:         CISCO           
        QSFP Part Number:    L45593-D178-B50 
        QSFP Serial Number:  LCC1942GADF     
    e4b MAC Address:    00:a0:98:ed:91:74 (auto-10g_twinax-fd-up)
        QSFP Vendor:         CISCO           
        QSFP Part Number:    L45593-D178-B50 
        QSFP Serial Number:  LCC1942GADF     
    e4c MAC Address:    00:a0:98:ed:91:75 (auto-unknown-fd-down)
        QSFP Vendor:         CISCO           
        QSFP Part Number:    L45593-D178-B50 
        QSFP Serial Number:  LCC1942GADF     
    e4d MAC Address:    00:a0:98:ed:91:76 (auto-10g_twinax-fd-up)
        QSFP Vendor:         CISCO           
        QSFP Part Number:    L45593-D178-B50 
        QSFP Serial Number:  LCC1942GADF 

  • The issue remains after a node port -up-admin false/true
  • The issue remains after a switch port shut/no shut
  • The issue remains after the cable re-seat

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