Hi I have added ADD_ANALYZER_TIMER(&TCP_Analyzer::AckTimer1,tcp_ACK_timeout,0,TIMER_TCP_EXPI RE); in TCP.cc file. AckTimer1 is my own function which executes when ACK doesn't comes within tcp_ACK_timeout (This sets to 6.5 sec). I want to reset the value of tcp_ACK_timeout when Acknowledgment comes. Can you give me solution for this? Bye LS Kishore The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments contained in it. Contact your Administrator for further information.