Transport Connection WARN

Hello everybody

Im having a lot of WARNs as follows:

014-01-03 18:48:01,288 | INFO | Network connection between
vm://vass-broker-3#20 and tcp:///10.142.176.107:45959 [ at ] 61616(vass-broker-4)
has been established. |
org.apache.activemq.network.DemandForwardingBridgeSupport |
triggerStartAsyncNetworkBridgeCreation:
remoteBroker=tcp:///10.142.176.107:45959 [ at ] 61616, localBroker=
vm://vass-broker-3#20
2014-01-03 18:49:41,001 | WARN | Transport Connection to: tcp://
10.142.176.106:43466 failed: java.io.EOFException |
org.apache.activemq.broker.TransportConnection.Transport | ActiveMQ
Transport: tcp:///10.142.176.106:43466 [ at ] 61616
2014-01-03 18:49:41,002 | WARN | Transport Connection to: tcp://
10.142.176.106:44756 failed: java.io.EOFException |
org.apache.activemq.broker.TransportConnection.Transport | ActiveMQ
Transport: tcp:///10.142.176.106:44756 [ at ] 61616

is this a normal error?

Regards