openstack/nova
Code Issues Proposed changes

Add release note for nova using neutron mtu value for vif plugging

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69ec718b62 changed nova to start using
the network mtu value from neutron (if specified and > 0) when
plugging virtual interfaces. This allows us to finally remove the
deprecated 'network_device_mtu' config option from nova (probably in
Newton).

Add a release note to point out that the segment_mtu value in neutron
is now used to set the mtu value during vif plugging in nova.

Change-Id: Iebffb487cc837427b0ede35aea93ec5f9594165f
Related-Bug: #1549408
This commit is contained in:
Matt Riedemann 2016-03-02 12:39:20 -05:00
parent 040df06bfc
commit b3c64d1c64
1 changed files with 13 additions and 0 deletions
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13
releasenotes/notes/neutron-mtu-6a7edd9e396107d7.yaml Normal file
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---
deprecations:
- The ``network_device_mtu`` option in Nova is deprecated for removal since
network MTU should be specified when creating the network with
nova-network. With Neutron networks, the MTU value comes from the
``segment_mtu`` configuration option in Neutron.
other:
- The Neutron network MTU value is now used when plugging virtual interfaces
in nova-compute. If the value is 0, which is the default value for the
``segment_mtu`` configuration option in Neutron before Mitaka, then the
(deprecated) ``network_device_mtu`` configuration option in Nova is used,
which defaults to not setting an MTU value.