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Conference noted::decnis

Title: DEC Network Integration Server (DECNIS)
Notice:Please read note 1 to use this conference effectively
Moderator:MARVIN::WELCH
Created:Wed Sep 18 1991
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:3660
Total number of notes:15082

3616.0. "NISFIX-4-040 problems with x25" by ATZIS2::BERANEK (HANNELORE BERANEK @AUI) Mon Apr 28 1997 15:46

Hello,
    
    Does anybody known wether there is a x25 bug in NISFIX-4-040 ?
    
    I've upgraded to NISFIX-4-040 on a DECNIS600 within easynet, and had 
    a lot of troubles with x25, the lapb link seems to bee bouncing,
    the x25 speed was very slow with a lot of hangs, and also x25 sessions 
    got disconnected !!!!!
    
    As this is the only austrian x25 gateway I had to downgrade, but if you
    want I can provide you with the images and scripts !
    !
    
    attatched you will find the details !
    
    loading the old image NISFIX-2-040 ->x25 workes fine !
    
    
    events from operator.log:
    _________________________
     ( these kind of events  was logged up to 2 times a minute)
    
    
    
    Message from user SYSTEM on DNSSER
    Event: Link Resetting from: Node DEC:.aui.auins2 LAPB Link DATEXP_A2,
            at: 1997-04-27-19:30:45.503+02:00Iinf
            Link Resetting Reason=Fbit Error
            eventUid   FB53205C-BF23-11D0-8000-0000F84315A0
            entityUid  6183CDFC-BD7D-11D0-8000-0000F84315A0
            streamUid  5B46359C-BD7D-11D0-8000-0000F84315A0
    
    
    %%%%%%%%%%%  OPCOM  27-APR-1997 19:31:10.56  %%%%%%%%%%%
    Message from user SYSTEM on DNSSER
    Event: Link Running from: Node DEC:.aui.auins2 LAPB Link DATEXP_A2,
            at: 1997-04-27-19:30:45.523+02:00Iinf
            eventUid   FB562D9C-BF23-11D0-8000-0000F84315A0
            entityUid  6183CDFC-BD7D-11D0-8000-0000F84315A0
            streamUid  5B46359C-BD7D-11D0-8000-0000F84315A0%%%%%%%%%%% 
    
    OPCOM  27-APR-1997 19:31:11.59  %%%%%%%%%%%
    Message from user SYSTEM on DNSSER
    Event: Port Terminated from: Node DEC:.aui.auins2 X25 Access,
            at: 1997-04-27-19:30:45.643+02:00Iinf
            Client=X25 Server,
            Remote Port=Node DEC:.aui.atzis2 X25 Access Port
    GAP_OUT_00000063,
            Type=Switched,
            State=Cleared,
            Reserved="",
            Call Direction=Outgoing,
            Call Association=,
            Target DTE Address=26209010,
            Calling DTE Address=28100109,
            Protocol Identifier='01000000'H,
            Group=,
            Channel=32,
           DTE Class=DATEXP_A2,
            Outgoing Packet Size=128,
            Incoming Packet Size=128,
            Outgoing Window Size=3,
            Incoming Window Size=3,
            Outgoing Throughput Class=10,
            Incoming Throughput Class=0,
    
    %%%%%%%%%%%  OPCOM  27-APR-1997 19:31:11.59  %%%%%%%%%%%
    Message from user SYSTEM on DNSSER
            Reverse Charging=False,
            Redirect Reason=Not Redirected,
            Originally Called Address=,
            Fast Select=No Fast Select,
            Calling Address Extension=,
            Target Address Extension=,
            DTE=X25 Protocol DTE DATEXP_A2,
            Reference Time=1997-04-27-19:28:16.583+02:00Iinf,
            Data Octets Received=21914,
            Data Octets Sent=110,
            PDUs Received=186,
            PDUs Sent=13,
           Segments Received=355
            eventUid   FB687D1C-BF23-11D0-8000-0000F84315A0
            entityUid  5B4AC97C-BD7D-11D0-8000-0000F84315A0
            streamUid  5B46359C-BD7D-11D0-8000-0000F84315A0
    
    
    As I've found in note 3323.1 increasing the acknowledge timer (T1)
     would help ! I tried this out, the only affect was that ( found in dtf
    traces) now the hold back timer expired, and sessions got disconnected
    too !
    
    sorry that I can't provide you with the DFT trace, but during this time 
    it was only possible to do it online, because ctf and dtf, to a dat file
     didn't  work ! (connection lost)
    
    here is the configuration of my DECNIS:
    
     
    DECNIS 600:  l601
                 f621 
                 3x 622
    one of the 622 cards is used for x25 !
    
    
    NCL>show node auins2 lapb link datexp_a2 all
    
    Node auins2 LAPB Link DATEXP_A2
    at 1997-04-28-17:39:11.843+02:00Iinf
    
    Identifiers
    
        Name                              = DATEXP_A2
    
    Status
    
        State                             = On
        Protocol State                    = Running
        Physical Port                     = Modem Connect Data Port $2
        Maximum PDU size                  = 135
        Line Type                         = Nonswitched
        UID                               =
    76F6423C-BFD5-11D0-8000-0000F84315A0
    
    Characteristics
     Profile                           = "DATEXP_A"
        Acknowledge Timer                 = 3000
        Sequence Modulus                  = 8
        Holdback Timer                    = 0
        Receive Buffers                   = 4
        Maximum Data Size                 = 133
        Window Size                       = 7
        Interface Type                    = DTE
        Retry Maximum                     = 10
        Physical Line                     = Modem Connect Line W622-5-0
        Poll Timer                        = 0
        Interframe Delay                  = 0
    
    Counters
    
        Creation Time                     =
    1997-04-28-16:41:13.853+02:00Iinf
        Times Link State Changed          = 1
        CRC Errors Received               = 0
        Data Octets Received              = 304231
        Data Octets Sent                  = 663622
        Data PDUs Received                = 46297
        Data PDUs Sent                    = 46387
        FRMRs Received                    = 0
     
    
    
    
    
    Node auins2 X25 Protocol DTE DATEXP_A2
    at 1997-04-28-17:40:47.423+02:00Iinf
    
    Identifiers
    
        Name                              = DATEXP_A2
    
    Status
    
        UID                               =
    7D3D025C-BFD5-11D0-8000-0000F84315A0
        State                             = Running
        Available Outgoing Channels       = 28
        DTE Classes                       =
           {
              DATEXP_A2
           }
        Groups                            =
           {
           }
        Last State Change                 =
    1997-04-28-16:41:35.613+02:00Iinf
        Interface Mode                    = DTE
    
    Characteristics
    
        Inbound DTE Class                 = DATEXP_A2
        Profile                           = "DATEXP_A"
        X25 Address                       = 28100109
        Interface Type                    = DTE
        Description                       = "DECX25Gateway 500/100V1.0"
        Maximum Active Circuits           = 512
        Maximum Clear Attempts            = 0
        Maximum Reset Attempts            = 1
        Maximum Restart Attempts          = 1
        Call Timer                        = 200
        Clear Timer                       = 180
        Interrupt Timer                   = 0
        Reset Timer                       = 180
        Restart Timer                     = 180
        Link Service Provider             = LAPB Link DATEXP_A2
        Outgoing List                     =
           {
              [1..32]
           }
        Extended Packet Sequencing        = False
        Maximum Throughput Class          = 48000
        Minimum Throughput Class          = 75
        Maximum Packet Size               = 128
        Default Packet Size               = 128
        Minimum Packet Size               = 64
        Maximum Window Size               = 2
        Default Window Size               = 2
        Minimum Window Size               = 1
        CCITT Version                     = 1984
        Incoming List                     =
           {
              [1..4095]
           }
        Segment Size                      = 64
    
    Counters
    
    
    thanks in advance  for having a close look on this !
    
    In the meantime I'll run with V4.0.2B which works fine !
    
    
    thanks and kind regards
    
    Hannelore Beranek
    CCS Austria 
    754-1526
    beranek@mail.dec.com
T.RTitleUserPersonal
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3616.1MARVIN::CARLINITue Apr 29 1997 19:4610
    V4.0.2 has known problems with X25 Relay; the only intentional change
    made to X.25 for V4.0.4 was to fix that one problem. I'm not aware of
    any LAPB problems and none were seen in the regression test network, as
    far as I know.
    
    Is this NIS connected to a real DATEXP network? Is it possible to get
    traces using a WAN analyser?
    
    Antonio
    
3616.2ATZIS1::BERANEKHANNELORE BERANEK @AUIWed Apr 30 1997 14:5023
    
    Hi Antonio,
    
    Sorry, but we don't have a WAN Analyzer, to provide the information you 
    require.
    
    But the problem seems to appear only when using the profile 
    DATEXP_A with the profile DATEXP it seems to work !
    
    I've also talked to Vera Kloeper who has the same assumtion !
    
    Vera has checked the 4.0.2 with german datexp, and DATEXP profile which
    works !
    
    So my question: what are the differences between DATEXP and DATEXP_A
    profile, which can couse this kind of problems ?
    
    thanks again and kind regards 
    
    ps: by the way, I'll be on holiday until 12th of may, Martin Fruehwirth
        knows the details of the problem and will supply you with further
        information if necessary !