In case of selecting new best path, Ryu BGPSpeaker send withdraw messages.
Signed-off-by: Toshiki Tsuboi <[email protected]>
---
ryu/services/protocols/bgp/info_base/base.py | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/ryu/services/protocols/bgp/info_base/base.py
b/ryu/services/protocols/bgp/info_base/base.py
index d3bc445..8ddbb0a 100644
--- a/ryu/services/protocols/bgp/info_base/base.py
+++ b/ryu/services/protocols/bgp/info_base/base.py
@@ -257,6 +257,16 @@ class NonVrfPathProcessingMixin(object):
pm = self._core_service.peer_manager
pm.comm_new_best_to_bgp_peers(new_best_path)
+ # withdraw old best path
+ if old_best_path and self._sent_routes:
+ for sent_route in self._sent_routes.values():
+ sent_path = sent_route.path
+ withdraw_clone = sent_path.clone(for_withdrawal=True)
+ outgoing_route = OutgoingRoute(withdraw_clone)
+ sent_route.sent_peer.enque_outgoing_msg(outgoing_route)
+ LOG.debug('Sending withdrawal to %s for %s' %
+ (sent_route.sent_peer, outgoing_route))
+
class Destination(object):
"""State about a particular destination.
--
1.9.3 (Apple Git-50)
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