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Appendices
Bonding driver configuration
Add the following to the file '
/etc/modprobe.d/bonding.conf' so that the bond driver doesn't create a bond0 interface with a default round-robin configuration.
# systemd-networkd won't change bond options (such as mode) if the bond already exists [1].
# This is confusing if we want to configure a bond0 since the kernel
# automatically creates a bond0 netdev as soon as the bonding module is loaded.
# This means systemd-networkd won't apply our preferred config.
#
# Therefore prevent the kernel from automatically creating a bond0 interface [2].
# This allows systemd-networkd to create the bond0 with appropriate options.
#
# [1] https://bugzilla.redhat.com/show_bug.cgi?id=1119347
# [2] http://lists.freedesktop.org/archives/systemd-devel/2015-March/029041.html
#
options bonding max_bonds=0
Intel Xeon-D x552/x557 10baseT fails to negiotiate a 10Gb link
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