Error from event viewer with cluster failure

Hi,I found this 3 messages which related with my windows cluster, the sql server found failed over by it self, anyone can help to interpret these error msgs from windows event viewer

Event Type:      Error
Event Source:      MSSQLSERVER
Event Category:      (3)
Event ID:      19019
Date:            12/25/2008
Time:            6:25:56 PM
User:            N/A
Computer:      ServerBankA
Description:
[sqsrvres] CheckQueryProcessorAlive: sqlexecdirect failed


For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 4b 4a 00 40 01 00 00 00  
0008: 0e 00 00 00 45 00 53 00  
0010: 45 00 41 00 4c 00 4d 00  
0018: 57 00 37 00 34 00 34 00  
0020: 53 00 51 00 4c 00 00 00  
0028: 00 00 00 00              



Event Type:      Error
Event Source:      MSSQLSERVER
Event Category:      (3)
Event ID:      19019
Date:            12/25/2008
Time:            6:25:56 PM
User:            N/A
Computer:      ServerBankA
Description:
[sqsrvres] printODBCError: sqlstate = 08S01; native error = 40; message = [Microsoft][SQL Native Client]TCP Provider: The specified network name is no longer available.



For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 4b 4a 00 40 01 00 00 00  
0008: 0e 00 00 00 45 00 53 00  
0010: 45 00 41 00 4c 00 4d 00  
0018: 57 00 37 00 34 00 34 00  
0020: 53 00 51 00 4c 00 00 00  
0028: 00 00 00 00              




Event Type:      Error
Event Source:      MSSQLSERVER
Event Category:      (3)
Event ID:      19019
Date:            12/25/2008
Time:            6:26:00 PM
User:            N/A
Computer:      ServerBankA
Description:
[sqsrvres] OnlineThread: QP is not online.


For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
Data:
0000: 4b 4a 00 40 01 00 00 00  
0008: 0e 00 00 00 45 00 53 00  
0010: 45 00 41 00 4c 00 4d 00  
0018: 57 00 37 00 34 00 34 00  
0020: 53 00 51 00 4c 00 00 00  
0028: 00 00 00 00