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This patch enables BGPSpeaker to advertise BGP EVPN routes and store the advertised BGP EVPN routes from the neighbors. TODO: - To support the VRF table for BGP EVPN routes. This patch supports the global table only. - To implement Multihoming Functions. Currently, ONLY Single-Homing is supported. Signed-off-by: IWASE Yusuke <iwase.yusuke0@gmail.com> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
62 lines
1.9 KiB
ReStructuredText
62 lines
1.9 KiB
ReStructuredText
*******************
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BGP speaker library
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*******************
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Introduction
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============
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Ryu BGP speaker library helps you to enable your code to speak BGP
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protocol. The library supports IPv4, IPv4 MPLS-labeled VPN, IPv6
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MPLS-labeled VPN and L2VPN EVPN address families.
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Example
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=======
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The following simple code creates a BGP instance with AS number 64512
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and Router ID 10.0.0.1. It tries to establish a bgp session with a
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peer (its IP is 192.168.177.32 and the AS number is 64513). The
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instance advertizes some prefixes.
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.. code-block:: python
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import eventlet
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# BGPSpeaker needs sockets patched
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eventlet.monkey_patch()
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# initialize a log handler
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# this is not strictly necessary but useful if you get messages like:
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# No handlers could be found for logger "ryu.lib.hub"
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import logging
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import sys
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log = logging.getLogger()
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log.addHandler(logging.StreamHandler(sys.stderr))
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from ryu.services.protocols.bgp.bgpspeaker import BGPSpeaker
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def dump_remote_best_path_change(event):
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print 'the best path changed:', event.remote_as, event.prefix,\
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event.nexthop, event.is_withdraw
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def detect_peer_down(remote_ip, remote_as):
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print 'Peer down:', remote_ip, remote_as
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if __name__ == "__main__":
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speaker = BGPSpeaker(as_number=64512, router_id='10.0.0.1',
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best_path_change_handler=dump_remote_best_path_change,
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peer_down_handler=detect_peer_down)
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speaker.neighbor_add('192.168.177.32', 64513)
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# uncomment the below line if the speaker needs to talk with a bmp server.
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# speaker.bmp_server_add('192.168.177.2', 11019)
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count = 1
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while True:
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eventlet.sleep(30)
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prefix = '10.20.' + str(count) + '.0/24'
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print "add a new prefix", prefix
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speaker.prefix_add(prefix)
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count += 1
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if count == 4:
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speaker.shutdown()
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break
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