diff --git a/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OFChannelHandler.java b/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OFChannelHandler.java
index 04aef8d..0a3ee86 100644
--- a/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OFChannelHandler.java
+++ b/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OFChannelHandler.java
@@ -981,11 +981,13 @@
                 // switch was a duplicate-dpid, calling the method below would clear
                 // all state for the original switch (with the same dpid),
                 // which we obviously don't want.
+                log.info("{}:removal called");
                 sw.removeConnectedSwitch();
             } else {
                 // A duplicate was disconnected on this ChannelHandler,
                 // this is the same switch reconnecting, but the original state was
                 // not cleaned up - XXX check liveness of original ChannelHandler
+                log.info("{}:duplicate found");
                 duplicateDpidFound = Boolean.FALSE;
             }
         } else {
diff --git a/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java b/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java
index e8ebcd1..716f7ec 100644
--- a/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java
+++ b/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java
@@ -307,9 +307,11 @@
             connectedSwitches.remove(dpid);
             OpenFlowSwitch sw = activeMasterSwitches.remove(dpid);
             if (sw == null) {
+                log.warn("sw was null for {}", dpid);
                 sw = activeEqualSwitches.remove(dpid);
             }
             for (OpenFlowSwitchListener l : ofSwitchListener) {
+                log.warn("removal for {}", dpid);
                 l.switchRemoved(dpid);
             }
         }