Sam Tannous 1321132890 Prevent MTU from being set to 1500 on interface downing. ...

Ticket: CM-5355
Reviewed By: roopa
Testing Done: Tested config in ticket

MTU settings are defaulted 1500 when interface is ifdowned.
This has the effect of changing the MTU on the interface and any subinterfaces to
1500.  And if these subinterfaces are in a bridge, the bridge will pick the MIN MTU
so the bridge keeps this MTU even after the interface is brought back up. The sub
interface does not change to a higher value then 1500 (kernel VLAN driver only
moves the MTU is the decreasing direction.

2015-03-17 21:59:15 -04:00

17 KiB

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