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# Copyright 2019 VyOS maintainers and contributors <maintainers@vyos.io>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library. If not, see <http://www.gnu.org/licenses/>.
from copy import deepcopy
from vyos.ifconfig.interface import Interface
class GeneveIf(Interface):
"""
Geneve: Generic Network Virtualization Encapsulation
For more information please refer to:
https://tools.ietf.org/html/draft-gross-geneve-00
https://www.redhat.com/en/blog/what-geneve
https://developers.redhat.com/blog/2019/05/17/an-introduction-to-linux-virtual-interfaces-tunnels/#geneve
https://lwn.net/Articles/644938/
"""
default = {
'type': 'geneve',
'vni': 0,
'remote': '',
}
def _create(self):
cmd = 'ip link add name {ifname} type geneve id {vni} remote {remote}'.format(**self.config)
self._cmd(cmd)
# interface is always A/D down. It needs to be enabled explicitly
self.set_state('down')
@classmethod
def get_config(cls):
"""
GENEVE interfaces require a configuration when they are added using
iproute2. This static method will provide the configuration dictionary
used by this class.
Example:
>> dict = GeneveIf().get_config()
"""
return deepcopy(cls.default)
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