neutron/neutron/plugins/ml2/drivers/linuxbridge/agent/common/constants.py

39 lines
1.3 KiB
Python

# Copyright 2012 Cisco Systems, Inc. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from neutron.plugins.common import constants as p_const
FLAT_VLAN_ID = -1
LOCAL_VLAN_ID = -2
# Supported VXLAN features
VXLAN_NONE = 'not_supported'
VXLAN_MCAST = 'multicast_flooding'
VXLAN_UCAST = 'unicast_flooding'
# TODO(rkukura): Eventually remove this function, which provides
# temporary backward compatibility with pre-Havana RPC and DB vlan_id
# encoding.
def interpret_vlan_id(vlan_id):
"""Return (network_type, segmentation_id) tuple for encoded vlan_id."""
if vlan_id == LOCAL_VLAN_ID:
return (p_const.TYPE_LOCAL, None)
elif vlan_id == FLAT_VLAN_ID:
return (p_const.TYPE_FLAT, None)
else:
return (p_const.TYPE_VLAN, vlan_id)