openstack/tripleo-heat-templates
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OVN: Add ovn_emit_need_to_frag configuration option

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This patch is adding a new parameter called OVNEmitNeedToFrag. This
parameter sets the "ovn_emit_need_to_frag" configuration option in
networking-ovn.

When set to True the option tells ovn whether it should emit "need to
frag" packets in case of MTU mismatch. Before enabling this
configuration
make sure that its supported by the host kernel (version >= 5.2) or by
checking the output of the following command: ovs-appctl -t ovs-vswitchd
dpif/show-dp-features br-int | grep "Check pkt length action". Defaults
to False.

This option was introduced by networking-ovn at:
https://review.opendev.org/#/c/671766/

Depends-On: https://review.opendev.org/#/c/687845/
Change-Id: Icf6c00997e52346e3c676f937be7daf553f137e3
Signed-off-by: Lucas Alvares Gomes <lucasagomes@gmail.com>
This commit is contained in:
Lucas Alvares Gomes 2019-10-10 11:30:35 +01:00
parent 8c2cba372b
commit 84b18f8fea
2 changed files with 21 additions and 0 deletions
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10
deployment/neutron/neutron-plugin-ml2-ovn.yaml
View File

@ -103,6 +103,15 @@ parameters:
type: string
tags:
- role_specific
OVNEmitNeedToFrag:
type: boolean
default: false
description: Configure OVN to emit "need to frag" packets in case of
MTU mismatch. Before enabling this configuration make sure
that it's supported by the host kernel (version >= 5.2) or
by checking the output of the following command
'ovs-appctl -t ovs-vswitchd dpif/show-dp-features
br-int | grep "Check pkt length action"'.
conditions:
neutron_dvr_unset: {equals : [{get_param: NeutronEnableDVR}, '']}
@ -143,6 +152,7 @@ outputs:
neutron::plugins::ml2::max_header_size: {get_param: NeutronGeneveMaxHeaderSize}
neutron::plugins::ml2::ovn::dns_servers: {get_param: OVNDnsServers}
neutron::plugins::ml2::tenant_network_types: {get_param: NeutronNetworkType}
neutron::plugins::ml2::ovn::ovn_emit_need_to_frag: {get_param: OVNEmitNeedToFrag}
- if:
- internal_tls_enabled
-

11
releasenotes/notes/ovn-emit-need-to-frag-config-option-33fe0ee3f6ac0372.yaml Normal file
View File

@ -0,0 +1,11 @@
---
features:
- |
Provides the option to set the "ovn_emit_need_to_frag" configuration
option to the "ovn" section of etc/neutron/plugins/ml2_conf.ini. This
option tells ovn whether it should emit ICMP "need to frag" packets
in case of MTU mismatch. Before enabling this configuration make
sure that it's supported by the host kernel (version >= 5.2) or
by checking the output of the following command 'ovs-appctl -t
ovs-vswitchd dpif/show-dp-features br-int | grep "Check pkt length
action"'. Defaults to False.