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Ben Pfaff authored
The kernel GRE driver ignores IFLA_MTU in RTM_NEWLINK requests and overrides the MTU to 1472 bytes. This commit works around the problem by following up a request to create a GRE device with a second request to set the MTU. Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=1488484 Reported-by: Eric Garver <e@erig.me> Reported-by: James Page <james.page@ubuntu.com> Signed-off-by: Ben Pfaff <blp@ovn.org> Acked-by: Eric Garver <e@erig.me> Tested-by: James Page <james.page@ubuntu.com>
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