diff options
| author |   Brent Eagles <beagles@redhat.com> | 2016-09-09 18:37:39 -0230 |
|---|---|---|
| committer | Brent Eagles <beagles@redhat.com> | 2016-09-09 18:46:36 -0230 |
| commit | 4223b88b708e145c1dcdc38e4209ecc9029dd91f (patch) | |
| tree | 07e200f228124fb83b173277452e8281e993e7fa /puppet/services/neutron-base.yaml | |
| parent | 3cc34744f1b116b16142caa31d7a3537420dd70f (diff) | |
Adjust MTU to compensate for VLAN tag issue
Some network configurations uncovered what appears to be an issue where
a spurious 802.1q header is injected into tunnelled traffic. Adjusting
the default value to accomodate the extra overhead should avoid this
problem.
Partial-Bug: #1621533
Change-Id: I9ebad2d6ad34d90fcb998497873059995cdef276
Diffstat (limited to 'puppet/services/neutron-base.yaml')
| -rw-r--r-- | puppet/services/neutron-base.yaml | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/puppet/services/neutron-base.yaml b/puppet/services/neutron-base.yaml index 4eb417c0..32d50d41 100644 --- a/puppet/services/neutron-base.yaml +++ b/puppet/services/neutron-base.yaml @@ -50,13 +50,16 @@ parameters: to false may result in configuration remnants after updates/upgrades. NeutronGlobalPhysnetMtu: type: number - default: 1500 + default: 1496 description: | MTU of the underlying physical network. Neutron uses this value to calculate MTU for all virtual network components. For flat and VLAN networks, neutron uses this value without modification. For overlay networks such as VXLAN, neutron automatically subtracts the overlay - protocol overhead from this value. + protocol overhead from this value. The default value of 1496 is + currently in effect to compensate for some additional overhead when + deploying with some network configurations (e.g. network isolation over + single network interfaces) ServiceNetMap: default: {} description: Mapping of service_name -> network name. Typically set |