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What is the purpose of the e0S port and is the change from auto-1000t-fd-up to auto-1000sx-fd-up a problem?

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Applies to

  • NetApp AFF A700s
  • ONTAP upgrade from 9.9.1P15 to 9.13.1P16
  • Hardware Assist
  • Baseboard Management Controller (BMC)
  • HA (High Availability)

Answer

  1. Purpose and role of the e0S Port
  • The e0S port is a dedicated network port used for the HA hardware assist function in NetApp systems such as the AFF A700s.
  • This port facilitates communication between nodes within the cluster and the BMC for HA-related information and SNMP traps.
    • Usage: Primarily for HA control and monitoring communication (SNMP traps) between nodes/BMC.
    • IP Address: Automatically assigned from the private segment 192.0.2.0/24, which cannot be changed.
    • Port Number: Uses the standard SNMP port 162, which is not changeable.
    • Reason: The e0S port is dedicated to avoid conflicts with the e0M port and its port number.
    •  
  1. Change from auto-1000t-fd-up to auto-1000sx-fd-up
  • The change in the display from auto-1000t-fd-up to auto-1000sx-fd-up is due to improvements or corrections in device recognition and display methods following the ONTAP version upgrade.
  • The physical interface and its purpose (HA hardware assist) remain unchanged.
  • Verification using commands like ifconfig shows the interface recognized as 1000BASE-SX (fiber optic), indicating it is functioning correctly as an ethernet autoselect (1000baseSX <full-duplex,rxpause,txpause>).
  • This change is purely a display difference and does not affect the functionality or communication of the e0S port.

Additional Information

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