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-rw-r--r--ryu/topology/dumper.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/ryu/topology/dumper.py b/ryu/topology/dumper.py
index 044e1a15..264871f0 100644
--- a/ryu/topology/dumper.py
+++ b/ryu/topology/dumper.py
@@ -22,6 +22,7 @@ import time
from ryu.base import app_manager
from ryu.controller import handler
from ryu.topology import event
+from ryu.topology import switches
LOG = logging.getLogger(__name__)
@@ -29,6 +30,9 @@ LOG = logging.getLogger(__name__)
class DiscoveryEventDumper(app_manager.RyuApp):
''' This app dumps discovery events
'''
+ _CONTEXTS = {
+ 'switches': switches.Switches,
+ }
def __init__(self, *args, **kwargs):
super(DiscoveryEventDumper, self).__init__(*args, **kwargs)