openstack/devstack
Code Issues Proposed changes

Introduce PUBLIC_BRIDGE_MTU variable to set br-ex MTU

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This variable can be used to accommodate for underlying infrastructure
that does not provide full 1500-sized traffic, or maybe instead gives
access to Jumbo frames.

Change-Id: I38a80bac18673a30842a7b997d0669fed5aff976
Related-Bug: #1603268
This commit is contained in:
Ihar Hrachyshka 2016-07-15 20:17:13 +02:00
parent 72ed1a171c
commit 7b5c7dce53
5 changed files with 18 additions and 2 deletions
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9
functions
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@ -637,6 +637,15 @@ function create_disk {
fi fi
} }
# set_mtu - Set MTU on a device
function set_mtu {
local dev=$1
local mtu=$2
sudo ip link set mtu $mtu dev $dev
}
# Restore xtrace # Restore xtrace
$_XTRACE_FUNCTIONS $_XTRACE_FUNCTIONS

1
lib/neutron_plugins/linuxbridge_agent
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@ -50,6 +50,7 @@ function neutron_plugin_configure_dhcp_agent {
function neutron_plugin_configure_l3_agent { function neutron_plugin_configure_l3_agent {
local conf_file=$1 local conf_file=$1
sudo brctl addbr $PUBLIC_BRIDGE sudo brctl addbr $PUBLIC_BRIDGE
set_mtu $PUBLIC_BRIDGE $PUBLIC_BRIDGE_MTU
iniset $conf_file DEFAULT external_network_bridge iniset $conf_file DEFAULT external_network_bridge
iniset $conf_file DEFAULT l3_agent_manager neutron.agent.l3_agent.L3NATAgentWithStateReport iniset $conf_file DEFAULT l3_agent_manager neutron.agent.l3_agent.L3NATAgentWithStateReport
} }

2
lib/neutron_plugins/openvswitch_agent
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@ -104,7 +104,7 @@ function neutron_plugin_configure_plugin_agent {
sudo ovs-vsctl -- --may-exist add-port "br-$VLAN_INTERFACE" $VLAN_INTERFACE sudo ovs-vsctl -- --may-exist add-port "br-$VLAN_INTERFACE" $VLAN_INTERFACE
# Create external bridge and add port # Create external bridge and add port
_neutron_ovs_base_add_bridge $PUBLIC_BRIDGE _neutron_ovs_base_add_public_bridge
sudo ovs-vsctl -- --may-exist add-port $PUBLIC_BRIDGE $PUBLIC_INTERFACE sudo ovs-vsctl -- --may-exist add-port $PUBLIC_BRIDGE $PUBLIC_INTERFACE
# Set bridge mappings to "physnet1:br-$GUEST_INTERFACE_DEFAULT" # Set bridge mappings to "physnet1:br-$GUEST_INTERFACE_DEFAULT"

7
lib/neutron_plugins/ovs_base
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@ -105,11 +105,16 @@ function _neutron_ovs_base_configure_l3_agent {
sudo ip link set $Q_PUBLIC_VETH_EX up sudo ip link set $Q_PUBLIC_VETH_EX up
sudo ip addr flush dev $Q_PUBLIC_VETH_EX sudo ip addr flush dev $Q_PUBLIC_VETH_EX
else else
_neutron_ovs_base_add_bridge $PUBLIC_BRIDGE _neutron_ovs_base_add_public_bridge
sudo ovs-vsctl br-set-external-id $PUBLIC_BRIDGE bridge-id $PUBLIC_BRIDGE sudo ovs-vsctl br-set-external-id $PUBLIC_BRIDGE bridge-id $PUBLIC_BRIDGE
fi fi
} }
function _neutron_ovs_base_add_public_bridge {
_neutron_ovs_base_add_bridge $PUBLIC_BRIDGE
set_mtu $PUBLIC_BRIDGE $PUBLIC_BRIDGE_MTU
}
function _neutron_ovs_base_configure_nova_vif_driver { function _neutron_ovs_base_configure_nova_vif_driver {
: :
} }

1
lib/neutron_plugins/services/l3
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@ -15,6 +15,7 @@ IPV6_PROVIDER_FIXED_RANGE=${IPV6_PROVIDER_FIXED_RANGE:-}
IPV6_PROVIDER_NETWORK_GATEWAY=${IPV6_PROVIDER_NETWORK_GATEWAY:-} IPV6_PROVIDER_NETWORK_GATEWAY=${IPV6_PROVIDER_NETWORK_GATEWAY:-}
PUBLIC_BRIDGE=${PUBLIC_BRIDGE:-br-ex} PUBLIC_BRIDGE=${PUBLIC_BRIDGE:-br-ex}
PUBLIC_BRIDGE_MTU=${PUBLIC_BRIDGE_MTU:-1500}
# If Q_USE_PUBLIC_VETH=True, create and use a veth pair instead of # If Q_USE_PUBLIC_VETH=True, create and use a veth pair instead of
# PUBLIC_BRIDGE. This is intended to be used with # PUBLIC_BRIDGE. This is intended to be used with