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

Applies to

X1144A 10/40 Gigabit Ethernet PCIe card XL710 QSFP+

Issue

• Just one of the four ports connected to the card is down. Example:

    slot 1: 10/40 Gigabit Ethernet Controller XL710 QSFP+
        e1a MAC Address:    3c:fd:fe:bc:d5:c0 (auto-10g_sr-fd-up)
            QSFP Vendor:         FINISAR CORP    
            QSFP Part Number:    332-00389       
            QSFP Serial Number:  XZL0M65         
        e1b MAC Address:    3c:fd:fe:bc:d5:c1 (auto-10g_sr-fd-up)
            QSFP Vendor:         FINISAR CORP    
            QSFP Part Number:    332-00389       
            QSFP Serial Number:  XZL0M65         
        e1c MAC Address:    3c:fd:fe:bc:d5:c2 (auto-10g_sr-fd-up)
            QSFP Vendor:         FINISAR CORP    
            QSFP Part Number:    332-00389       
            QSFP Serial Number:  XZL0M65         
        e1d MAC Address:    3c:fd:fe:bc:d5:c3 (auto-unknown-fd-down)
            QSFP Vendor:         FINISAR CORP    
            QSFP Part Number:    332-00389       
            QSFP Serial Number:  XZL0M65         
        Device Type:        XL710 B1, PBA J27441-003
        Firmware Version:   fw 5.20 nvm 5.04 etid 80003fb0
        Serial Number:      3CFDFEBCD5C0

• Disabled/enabled the port in the node and switch doesn't fix the issue
• A cable and QSFP re-seat doesn't fix the issue.