I would expect the timemark packet would have to be within the existing session ports. Consider: - SCANINTERVAL and TIMEMARK are used together to determine if a connection has been lost. The connection is identified by a unique pair of ports between the client (random port) and server (23). - The Telnet server can't assume the client is listening on another port, or can respond to a ping in this era of firewalls.
http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/f1a1b3b1/2.2.1.4.7?ACTION=MATCHES&REQUEST=timemark&TYPE=FUZZY&SHELF=&DT=20120119110606&CASE=&searchTopic=TOPIC&searchText=TEXT&searchIndex=INDEX&rank=RANK&ScrollTOP=FIRSTHIT#FIRSTHIT Thanks for the TCPIP newsgroup reference Lizette. Cheers, MARK DOUGLAS www.citec.com.au -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Lizette Koehler Sent: Wednesday, 16 May 2012 11:48 PM To: [email protected] Subject: Re: Z/OS TELNET SERVER SCANINTERVAL TIMEMARK If you have not done so, you may also wish to join the TCPIP newsgroup For IBMTCP-L subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBMTCP-L Lizette > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of > Bernard Coeytaux > Sent: Wednesday, May 16, 2012 5:33 AM > To: [email protected] > Subject: Z/OS TELNET SERVER SCANINTERVAL TIMEMARK > > Hello, > Is the timemark packet send to the particulary client tn3270 port or is it just a ping to > the client ipaddr ? > I other words if we have a server with many sessions (like websphere with HATS), is > the timemark sent to every client hats-hod client or is it just the presence of the > server that is checked ? > > Thanks and regards > Bernard Coeytaux > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ***************************** Disclaimer ***************************** The contents of this electronic message and any attachments are intended only for the addressee and may contain privileged or confidential information. They may only be used for the purposes for which they were supplied. If you are not the addressee, you are notified that any transmission, distribution, downloading, printing or photocopying of the contents of this message or attachments is strictly prohibited. The privilege of confidentiality attached to this message and attachments is not waived, lost or destroyed by reason of mistaken delivery to you. If you receive this message in error please notify the sender by return e-mail or telephone. Please note: the Department of Public Works carries out automatic software scanning, filtering and blocking of E-mails and attachments (including emails of a personal nature) for detection of viruses, malicious code, SPAM, executable programs or content it deems unacceptable. All reasonable precautions will be taken to respect the privacy of individuals in accordance with the Information Privacy Act 2009 (Qld). Personal information will only be used for official purposes, e.g. monitoring Departmental Personnel's compliance with Departmental Policies. Personal information will not be divulged or disclosed to others, unless authorised or required by Departmental Policy and/or law. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
