Change MTU logic to allow for lower MTUs automatically
Conflicts:
devstack/settings
zuul.d/ironic-jobs.yaml
Change-Id: I40d357e716b589585493824cfd963fd5f579bd81
(cherry picked from commit cf074202e5
)
This commit is contained in:
parent
05bf8f69d6
commit
1a85a15761
|
@ -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)
|
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
|
# 50 bytes is overhead for vxlan (which is greater than GRE
|
||||||
# allowing us to use either overlay option with this MTU.
|
# allowing us to use either overlay option with this MTU.
|
||||||
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))}
|
||||||
|
|
Loading…
Reference in New Issue