Public bug reported:
For networks when VLAN transparency is enabled, mtu value returned by get_mtu
should be lower by 4 bytes to make space for that additional vlan tag which is
added by the VM.
The problem here is that get_mtu() method in the type drivers currently only
gets physical_network as parameter so there is no way to check if network has
or hasn't got vlan_transparency enabled.
** Affects: neutron
Importance: Medium
Assignee: Slawek Kaplonski (slaweq)
Status: New
** Tags: ml2 vlan
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https://bugs.launchpad.net/bugs/1906318
Title:
MTU for networks with enabled vlan transparency should be 4 bytes
lower
Status in neutron:
New
Bug description:
For networks when VLAN transparency is enabled, mtu value returned by get_mtu
should be lower by 4 bytes to make space for that additional vlan tag which is
added by the VM.
The problem here is that get_mtu() method in the type drivers currently only
gets physical_network as parameter so there is no way to check if network has
or hasn't got vlan_transparency enabled.
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