Signed-off-by: YAMAMOTO Takashi <[email protected]>
---
ryu/services/vrrp/monitor.py | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/ryu/services/vrrp/monitor.py b/ryu/services/vrrp/monitor.py
index c1e8e60..f614bda 100644
--- a/ryu/services/vrrp/monitor.py
+++ b/ryu/services/vrrp/monitor.py
@@ -15,9 +15,9 @@
# limitations under the License.
"""
Interface monitor.
-Watching packet recevined on this interface and parse VRRP packet.
+Watching packet received on this interface and parse VRRP packet.
-RRPManager creates/deletes instances of interface monitor dynamically.
+VRRPManager creates/deletes instances of interface monitor dynamically.
"""
import contextlib
@@ -128,6 +128,12 @@ class VRRPInterfaceMonitor(app_manager.RyuApp):
# it ourselvs.
packet_ = packet.Packet(packet_data)
protocols = packet_.protocols
+
+ # we expect either of
+ # [ether, vlan, ip, vrrp{, padding}]
+ # or
+ # [ether, ip, vrrp{, padding}]
+
if len(protocols) < 2:
self.logger.debug('len(protocols) %d', len(protocols))
return
--
1.8.1.5
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