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bgp: support New best path selecting

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In case of selecting new best path, Ryu BGPSpeaker send withdraw messages.

Signed-off-by: Toshiki Tsuboi <t.tsubo2000@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
This commit is contained in:
Toshiki Tsuboi 2014-12-17 13:25:48 +09:00 committed by FUJITA Tomonori
parent 3bfa3c56da
commit c484d73bfb
1 changed files with 10 additions and 0 deletions
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10
ryu/services/protocols/bgp/info_base/base.py
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@ -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.