1 # Copyright (C) 2016 Nippon Telegraph and Telephone Corporation.
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
7 # http://www.apache.org/licenses/LICENSE-2.0
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
17 Defines data types and models required specifically for EVPN support.
22 from ryu.lib.packet.bgp import EvpnNLRI
23 from ryu.lib.packet.bgp import RF_L2_EVPN
25 from ryu.services.protocols.bgp.info_base.vpn import VpnDest
26 from ryu.services.protocols.bgp.info_base.vpn import VpnPath
27 from ryu.services.protocols.bgp.info_base.vpn import VpnTable
29 LOG = logging.getLogger('bgpspeaker.info_base.evpn')
32 class EvpnDest(VpnDest):
37 ROUTE_FAMILY = RF_L2_EVPN
40 class EvpnTable(VpnTable):
41 """Global table to store EVPN routing information.
43 Uses `EvpnDest` to store destination information for each known EVPN
46 ROUTE_FAMILY = RF_L2_EVPN
47 VPN_DEST_CLASS = EvpnDest
50 class EvpnPath(VpnPath):
51 """Represents a way of reaching an EVPN destination."""
52 ROUTE_FAMILY = RF_L2_EVPN
53 VRF_PATH_CLASS = None # defined in init - anti cyclic import hack
56 def __init__(self, *args, **kwargs):
57 super(EvpnPath, self).__init__(*args, **kwargs)
58 from ryu.services.protocols.bgp.info_base.vrfevpn import VrfEvpnPath
59 self.VRF_PATH_CLASS = VrfEvpnPath