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13e2253070
Ticket: CM-10471
Reviewed By:
Testing Done: Tested with failing config in CM-10471
Recent commit "84f33af6e1f53d ("address.py: default value for mtu when
mtu attribute is removed") CM-9449" enabled setting of device mtu to default
mtu if mtu is not given in the interfaces file.
logical devices like bridges and vlan devices rely on mtu
from their lower devices. ie mtu travels from
lower devices to upper devices. For bonds mtu travels from
upper to lower devices. running mtu depends on upper and
lower device mtu. With all this implicit mtu
config by the kernel in play, it becomes almost impossible
to compare running mtu with the default mtu.
This commit disables this resetting of mtu based on default mtu.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>