334f7733f5
This patch adds an extra checking to ensure the
"reside-on-redirect-chassis" is set to true for the logical
router port associated to vlan provider network despite having
the "ovn_distributed_floating_ip" enabled or not. This is needed
as there is an OVN bug [1] making it not work as expected.
Note setting this to true has implications as the traffic will be
centrallized (but not tunneled) through the node with the gateway
port.
The expected behavior of this flag, once [1] is fixed is:
- reside-on-redirect-chassis flag to False: means traffic goes
tunneled to the controller with the gateway port. Means it requires
extra MTU reduction to work.
- reside-on-redirect-chassis flag to True: means traffic is not
tunneled to the controller with the gateway port, but the traffic is
centralized through the controller with the gateway port. Thus it
does not require extra MTU reduction.
- reside-on-redirect-chassis to False, but with ovn-chassis-mac-mappings
configured: means the traffic is fully distributed and it is not being
tunneled, nor sent, through the controller with the gateway port. This
is the preferred option as it does not require MTU reduction and it
avoids the extra hop. However it is not working as expected, therefore
the fallback to set reside-on-redirect-chassis to True.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=2162756
Closes-Bug: #2003455
Change-Id: I662cb30c842e54bb9f7dabac5519283aa7c7f8d0
(cherry picked from commit acb809eea4)
20 lines
1000 B
YAML
20 lines
1000 B
YAML
---
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fixes:
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[`bug 2003455 <https://bugs.launchpad.net/neutron/+bug/2003455>`_]
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It is added an extra checking to ensure the "reside-on-redirect-chassis"
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is set to true for the logical router port associated to vlan provider
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network despite having the "ovn_distributed_floating_ip" enabled or not.
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This is needed as there is an OVN bug
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(https://bugzilla.redhat.com/show_bug.cgi?id=2162756) making it not work
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as expected. Until that is fixed, we need these workaround
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that makes the traffic centrallized, but not tunneled, through the node
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with the gateway port, thus avoiding MTU issues.
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issues:
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- |
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Until the OVN bug (https://bugzilla.redhat.com/show_bug.cgi?id=2162756)
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is fixed, setting the "reside-on-redirect-chassis" to true for the logical
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router port associated to vlan provider network is needed. This workaround
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makes the traffic centrallized, but not tunneled, through the node
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with the gateway port, thus avoiding MTU issues.
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