NetMaster

  • 1.  SmartTrace of Dropped Connections

    Posted Nov 14, 2016 10:40 AM

    Is there a way to set up a CA NetMaster SmartTrace to trace only TCP Connections that are dropped? We are seeing a value in the Stack statistics most of the time and want to determine what is being dropped.



  • 2.  Re: SmartTrace of Dropped Connections
    Best Answer

    Broadcom Employee
    Posted Nov 14, 2016 12:04 PM

    Hi Jon,

    A dropped connection I believe will have the following characteristics in terms of TCP flags (Flags ........ ACK PSH RST   ), thus the following I believe will capture what you are looking for:   

     

    1. /TRADD
    2. New TCP Trace
    3. Definition will look like follows:

     

    Page 1   (Can get more specific if you wish)

    Name ............... DROPPED                                             

    Description ........ dropped                                             

                                                                              

    Trace Packets with:                                                      

      TCP/IP Stack .......+ TCPIP                                            

      Interface Name .....+                                                  

      Local Host ..........                                                  

      Local Ports .........                                                  

      Foreign Host ........                                                  

      Foreign Ports .......                                                   

     

    Page 2:

    After the Initial Packets, Trace Packets with:

      TCP Flags .......+ ACK AND PSH AND RST      

     

    Give that a shot and let me know.

     

    Thanks,

    Steve