Why is my bonding mode not being set correctly in Red Hat Enterprise Linux 4?

Environment

Red Hat Enterprise Linux 4

Issue

Bonding mode is not being set correctly in Red Hat Enterprise Linux 4.

Resolution

Administrators should use mode numbers instead of mode names in their /etc/modprobe.conf file when setting up bonding in Red Hat Enterprise Linux 4. For example, to set up a bonded interface in active-backup mode (mode 1), use the line:

     install bond0 /sbin/modprobe bonding -o bond0 mode=1 primary=eth0

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