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authorZuul <zuul@review.opendev.org>2019-10-23 13:00:04 +0000
committerGerrit Code Review <review@openstack.org>2019-10-23 13:00:04 +0000
commit27f81a89b15eae5a5cb106af9464c9a7721e57d5 (patch)
tree4fd5a911fa5cfc7fcf62c47a2bc4f3a72d9293a1
parent35ded83a91b6889123e519a8e1833926fa33080c (diff)
parent4dab3dde694da0f6327ec92e3e56e4f9d47ef54e (diff)
downloadironic-27f81a89b15eae5a5cb106af9464c9a7721e57d5.tar.gz
Merge "Change MTU logic to allow for lower MTUs automatically" into stable/stein
-rw-r--r--devstack/settings6
-rw-r--r--zuul.d/ironic-jobs.yaml2
2 files changed, 5 insertions, 3 deletions
diff --git a/devstack/settings b/devstack/settings
index 9783efdd6..cafa85384 100644
--- a/devstack/settings
+++ b/devstack/settings
@@ -9,4 +9,8 @@ source $DEST/ironic/devstack/common_settings
local_mtu=$(ip link show | sed -ne 's/.*mtu \([0-9]\+\).*/\1/p' | sort -n | head -1)
# 50 bytes is overhead for vxlan (which is greater than GRE
# allowing us to use either overlay option with this MTU.
-PUBLIC_BRIDGE_MTU=${OVERRIDE_PUBLIC_BRIDGE_MTU:-$((local_mtu - 50))}
+# However, if traffic is flowing over IPv6 tunnels, then
+# The overhead is essentially another 100 bytes. In order to
+# handle both cases, lets go ahead and drop the maximum by
+# 100 bytes.
+PUBLIC_BRIDGE_MTU=${OVERRIDE_PUBLIC_BRIDGE_MTU:-$((local_mtu - 100))}
diff --git a/zuul.d/ironic-jobs.yaml b/zuul.d/ironic-jobs.yaml
index 128c55c3c..ca6b0c6f4 100644
--- a/zuul.d/ironic-jobs.yaml
+++ b/zuul.d/ironic-jobs.yaml
@@ -29,7 +29,6 @@
DEFAULT_INSTANCE_TYPE: baremetal
FORCE_CONFIG_DRIVE: True
INSTALL_TEMPEST: False # Don't install a tempest package globaly
- OVERRIDE_PUBLIC_BRIDGE_MTU: 1400
TEMPEST_PLUGINS: "{{ ansible_user_dir }}/src/opendev.org/openstack/ironic-tempest-plugin"
VIRT_DRIVER: ironic
BUILD_TIMEOUT: 720
@@ -364,7 +363,6 @@
IRONIC_VM_LOG_DIR: '{{ devstack_base_dir }}/ironic-bm-logs'
IRONIC_VM_SPECS_RAM: 384
OS_TEST_TIMEOUT: 2400
- OVERRIDE_PUBLIC_BRIDGE_MTU: 1400
OVS_BRIDGE_MAPPINGS: 'mynetwork:brbm,public:br-infra'
OVS_PHYSICAL_BRIDGE: brbm
PHYSICAL_NETWORK: mynetwork