During Oracle RAC failover, the surviving RAC node issues GARP twice in RHEL 6

Solution Verified - Updated -

Issue

  • During Oracle RAC failover, the surviving RAC node issues Gratuitous ARP (GARP) twice. The first one has the correct MAC address and this is immediately followed by a second GARP but with an incorrect MAC address (it’s using the MAC address of the default gateway).

Environment

  • Red Hat Enterprise Linux (RHEL) 6.5
  • VMWare
  • Oracle RAC

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