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Conference help::decnet-osi_for_vms

Title:DECnet/OSI for OpenVMS
Moderator:TUXEDO::FONSECA
Created:Thu Feb 21 1991
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:3990
Total number of notes:19027

3954.0. "X29 deadly slow" by HGOVC::TOMLIU (Tom Liu) Mon May 05 1997 10:23

    A VMS system with VMS 6.1 and DECnet/OSI 6.3 installed. PSI access
    is being configured. Problem happened on both X29 incoming and
    outgoing. When execute set host/X29 to a remote node, we can get the
    remote logon screen but the response is deadly slow that we can not
    successful login to the system due to timeout. The same symptom when
    set host/x29 from a remote node. We have tried to install the
    DECent/OSI ECO 6, but the symptom remains unchanged. Please advice
    what would be the cause of the problem.
    
    Rgds
    Tom
T.RTitleUserPersonal
Name		DateLines
3954.1MUNICH::KLOEPPERVera Kloepper/Net&Comms-SupportMon May 05 1997 11:378
    
    This is a typical problem if the local configured window size
    and the DCE window size is different.
    
    Check the paper with the X.25 connection details you've received 
    from your PTT for this parameter.
    
    Vera
3954.2HGOVC::SAMCHANWed May 07 1997 01:026
    We have checked the packet length and window size. It is matched with 
    the x25 connection. What else we need to check.
            
    Rgds
    Sam Chan
3954.3MUNICH::KLOEPPERVera Kloepper/Net&Comms-SupportWed May 07 1997 03:5810
    
    More informationis needed :
    
    1. what is your x25-gateway ?
       who else uses the gateway (maybe heavily loaded ?) 
       
    2. run a trace at the gateway (x25l3 dte) for the failing set host
       together with a trace started on the access node (x25gap circuit)
    
    Vera
3954.4Precedence and tower betweem connector and access noce ?LEMAN::SCHEIDEGGERRaymond @GEO - DTN 821-5236Wed May 07 1997 09:589
    Hi,
    If you have an x25 Access config, check the tower of the connector
    node. I had problem when OSIT and NSP was defined and the wrong
    precedence set. The access node was trying to connect first with the
    wrong tower, waiting 20 second and trying with the rigth tower but it
    was to late. If you use a DECnis you should have the DECnis defined
    with NSP only ... If i remember correctly.
    
    Raymond