Even though bonding has been configured for mode 1 [active backup], it still shows as Mode 0 [Round-Robin]

Solution Verified - Updated -

Issue

  • Although the system has been configured with mode 1 bonding in /etc/modprobe.conf, running cat /proc/net/bonding/bond0 still shows the bonding to be configured as mode 0 [round-robin]:

      Ethernet Channel Bonding Driver: v2.6.3-rh (June 8, 2005)

  Bonding Mode: load balancing (round-robin)
  MII Status: up
  MII Polling Interval (ms): 100
  Up Delay (ms): 0
  Down Delay (ms): 0

  Slave Interface: eth0
  MII Status: up
  Link Failure Count: 0
  Permanent HW addr: 00:0c:29:40:be:67

  Slave Interface: eth1
  MII Status: up
  Link Failure Count: 0
  Permanent HW addr: 00:0c:29:40:be:71

Environment

  • Red Hat Enterprise Linux, all versions

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