Change tunnel MTU calculation to support IPv6

Bug #1599889 reported by OpenStack Infra
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
neutron
Fix Released
Medium
Unassigned

Bug Description

https://review.openstack.org/320121
Dear bug triager. This bug was created since a commit was marked with DOCIMPACT.
Your project "openstack/neutron" is set up so that we directly report the documentation bugs against it. If this needs changing, the docimpact-group option needs to be added for the project. You can ask the OpenStack infra team (#openstack-infra on freenode) for help if you need to.

commit 51a697817da849c8f9dae9651f17cd863e170fdc
Author: Brian Haley <email address hidden>
Date: Mon May 23 15:50:06 2016 -0400

    Change tunnel MTU calculation to support IPv6

    The IPv6 header is twice the size of the IPv4 header, 40 vs 20
    bytes, but the tunnel overhead constants are static, only
    accounting for an IPv4 header in all cases. In order to be
    correct it needs to treat the tunnel overhead different from
    the IP overhead at L3.

    This required removing the 20 byte IP overhead from the tunnel
    type overhead constants and creating a new option,
    ml2.overlay_ip_version, in order for the server to know which
    version will be used, since it calculates the MTU for the network.
    A version mis-match will now cause a tunnel sync to fail on
    the server.

    Moved all MTU tests to a common location to remove duplication.

    DocImpact

    Change-Id: Ia2546c4c71ff48b9fe2817fbad22b1fbf85f325b
    Closes-bug: #1584940

Tags: doc neutron
Changed in neutron:
status: New → Confirmed
importance: Undecided → Medium
Rohan Arora (ra271w)
Changed in neutron:
assignee: nobody → Rohan Arora (ra271w)
Revision history for this message
Rohan Arora (ra271w) wrote :

Bug was fixed in a general neutron documentation update.

Changed in neutron:
status: Confirmed → Fix Released
assignee: Rohan Arora (ra271w) → nobody
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