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Conference ozrock::x25_avms

Title:DEC X.25 for OpenVMS AXP
Moderator:OZROCK::MUGGERIDGE
Created:Mon Jan 18 1993
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:524
Total number of notes:2218

509.0. "X.25 conns lost with OSI" by UTOPIE::BRAUN_R () Fri Apr 11 1997 08:50

(Cross-posted in DECNET-OSI_FOR_VMS,X25PSI,X25_AVMS,DECNIS)

Hi,

my customer has the following problem:

AXP 1000A with 1 x FDDI
VMS 6.2 1H3
DECnet/OSI  6.3-6
X.25  1.0G
DECNIS 3.1-2 or DEMSA with X.25 Gateway 500 v1.0.28 (same problem with both
gateways)
!

Sometimes, the connection is getting lost and due to the retry mechanism
of the remote systems (some lottery- or bookie's terminals) a new SVC
is created, but the application is able to handle only one SVC at the same
time --> manual intervention necessary (delete x25 access port) 

With PhaseIV-VAXes, VMS 5.5-2 (and Ethernet) via the same gateways there is 
no problem!

The problem is not reproducible, but the customer has been able to catch
this situation (traces are appended).


Any help will be highly appreciated.

Thanks,
Ralph


***************************************************************************

Both traces show the first block being transmitted synchronously 
(71 58 .., some quote block from a race track). The time difference of 
46,5 min arises from a wrong time on the NIS.

The second block is from a cash desk on another channel

Then, channel 2 loses connection without a CLEAR,...

The next quote block from the race track (2A 50..) and from the cash desk
(03 5A) don't arrive at the host (VWZ1)

trace on NIS02 (10-APR):


13:13:05.85|Rx  |    3|002   RR      7/        |
13:13:13.22|Rx  |  117|002   DATA    7/7       | 71 58 02 01 01 01 00 0A 00 00
                                               | 0B 00 00 0C 00 00 00 00 00 00
                                               | 00 00 00 00 00 FF FE 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 03
13:13:13.22|  Tx|    3|002   RR           0/   |
13:13:22.44|  Tx|   91|001   DATA         6/1  | 46 31 31 34 20 32 20 20 20 20
                                               | 31 30 20 20 20 20 31 31 20 20
                                               | 20 20 31 32 20 20 20 20 20 20
                                               | 31 33 31 31 30 20 20 20 20 20
                                               | 30 20 20 20 20 20 30 20 20 20
                                               | 20 20 30 20 20 20 20 20 30 20
                                               | 20 20 20 20 30 20 20 20 20 20
                                               | 30 31 30 30 34 39 37 31 33 34
                                               | 38 30 30 20 30 30 30 0D
13:13:22.57|Rx  |    3|001   RR      2/        |
13:14:05.07|Rx  |   46|002   DATA    7/0       | 2A 50 03 00 00 00 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 FF FF FF FF FF FF FF
                                               | FF FF FF
13:14:07.97|Rx  |    7|002   DATA    7/1       | 03 5A 03 02
13:23:12.71|Rx  |    9|003   DATA    5/4       | 03 51 C3 38 00 00
13:23:12.71|  Tx|    3|003   RR           5/   |
13:23:12.79| Tx |   57|003   DATA         5/5  | 83 51 C3 00 3A 07 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 00 00 05 00 00 00 00 00
                                               | 00 00 00 00 00 00 00 00 00 00
                                               | 00 00 3A 07 00 00 00 00 00 00
                                               | 00 00 00 00
13:23:12.89|Rx  |    3|003   RR      6/        |

 


trace on vwz1:


13:59:38.98|Rx  |  116|    DATA     | 71 58 02 01 01 01 00 0A 0000 0B 00 00 0C
                                    | 00 00 00 00 00 00 00 00 00 00 00 FF FE 00
                                    | 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                    | 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                    | 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                    | 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                    | 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                    | 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                    | 00 03
13:59:48.17|  Tx|   89|    DATA     | 46 31 31 34 20 32 20 20 20 20 31 30 20 20
                                    | 20 20 31 31 20 20 20 20 31 32 20 20 20 20
                                    | 20 20 31 33 31 31 30 20 20 20 20 20 30 20
                                    | 20 20 20 20 30 20 20 20 20 20 30 20 20 20
                                    | 20 20 30 20 20 20 20 20 30 20 20 20 20 20
                                    | 30 31 30 30 34 39 37 31 33 34 38 30 30 20
                                    | 30 30 0D
13:59:48.57|  Tx|  123|    DATA     | 55 31 31 34 20 31 37 31 30 30 34 39 37 20
                                    | 36 31 33 32 35 41 31 31 31 31 31 31 31 31
                                    | 31 31 31 31 31 31 31 30 30 30 30 30 30 30
                                    | 30 30 30 30 30 30 30 30 31 35 31 33 34 38
                                    | 41 31 31 31 31 31 31 31 31 31 31 31 31 31
                                    | 31 31 30 30 30 30 30 30 30 30 30 30 30 30
                                    | 30 30 30 31 35 31 35 30 30 57 31 31 31 31
                                    | 31 31 31 31 31 31 31 31 31 31 31 30 30 30
                                    | 30 30 30 30 30 30 30 31 0D
13:59:48.58|  Tx|  123|    DATA     | 55 31 31 34 30 30 30 30 30 31 35 31 35 33
                                    | 30 57 31 31 31 31 31 31 31 31 31 31 31 31
                                    | 31 31 31 30 30 30 30 30 30 30 30 30 30 30
                                    | 30 30 30 30 31 35 31 36 30 30 57 31 31 31
                                    | 31 31 31 31 31 31 31 31 31 31 31 31 30 30
                                    | 30 30 30 30 30 30 30 30 30 30 30 30 30 31
                                    | 35 31 36 33 30 57 31 31 31 31 31 31 31 31
                                    | 31 31 31 31 31 31 31 30 30 30 30 30 30 30
                                    | 30 30 30 30 30 30 30 31 0D
13:59:48.58|  Tx|   17|    DATA     | 55 31 31 34 30 31 35 20 34 20 35 20 36 30
                                    | 0D
14:09:39.17|Rx  |    8|    DATA     | 03 51 C3 38 00 00
14:09:39.25|  Tx|   56|    DATA     | 83 51 C3 00 3A 07 00 00 00 00 00 00 00 00
                                    | 00 00 00 00 00 00 00 00 00 00 05 00 00 00
                                    | 00 00 00 00 00 00 00 00 00 00 00 00 00 00
                                    | 3A 07 00 00 00 00 00 00 00 00 00 00




Nis02:

at 1997-04-10-15:19:31.180+02:00Iinf

Identifiers

    Name                              = SVC_IN_0000000000000000000001BE

Status

    Client                            = X25 Server Client VWZ1
    Remote Port                       = Node 0:.vwz1 X25 Access Port PORT_0008
    Type                              = Switched
    State                             = Running
    Reserved                          = ""
    Call Direction                    = Incoming
    Call Association                  = X25 Access Filter ROUTE_ETAG_TEST
    Target DTE Address                = 45000816
    Calling DTE Address               = 45000817
    Protocol Identifier               = '01000000'H
    Group                             = <Default value>
    Channel                           = 2
    DTE Class                         = DTE_23
    Outgoing Packet Size              = 128
    Incoming Packet Size              = 128
    Outgoing Window Size              = 2
    Incoming Window Size              = 2
    Outgoing Throughput Class         = 0
    Incoming Throughput Class         = 0
    Reverse Charging                  = False
    Redirect Reason                   = Not Redirected
    Originally Called Address         = 
    Fast Select                       = No Fast Select
    Calling Address Extension         = <Default value>
    Target Address Extension          = <Default value>
    Local DTE                         = X25 Protocol DTE DTE_23

Counters

    Reference Time                    = 1997-04-10-14:28:16.330+02:00Iinf
    Data Octets Received              = 1247
    Data Octets Sent                  = 2249
    PDUs Received                     = 42
    PDUs Sent                         = 37
    Segments Sent                     = 37                   Node 0 X25 Access



vwz1:

Port PORT_0008
at 1997-04-10-14:07:09.229+02:00I0.423

Identifiers

    Name                              = PORT_0008

Status

    Client                            = Generic Client User Process
"Pid=2620079
C Device=NWA1232:"
    Remote Port                       = <Default value>
    Type                              = Switched
    State                             = Running
    Reserved                          = ""
    Call Direction                    = Incoming
    Call Association                  = X25 Access Filter vorwett
    Target DTE Address                = 45000816
    Calling DTE Address               = 45000817
    Protocol Identifier               = '01000000'H
    Group                             = <Default value>
    Channel                           = 0
    DTE Class                         = DTE_23
    Outgoing Packet Size              = 128
    Incoming Packet Size              = 128
    Outgoing Window Size              = 0
    Incoming Window Size              = 0
    Outgoing Throughput Class         = 0
    Incoming Throughput Class         = 0
    Reverse Charging                  = False
    Redirect Reason                   = Not Redirected
    Fast Select                       = Not Specified
    Calling Address Extension         = <Default value>
    Target Address Extension          = <Default value>
    Local DTE                         = <Default value>

Counters

    Reference Time                    = 1997-04-10-13:14:48.650+02:00I0.383
    Data Octets Received              = 1200
    Data Octets Sent                  = 2249
    PDUs Received                     = 40
    PDUs Sent                         = 39
    Segments Sent                     = 43
    Segments Received                 = 42



    Segments Received                 = 44


After a reconnect from the race track:

NIS02:

14:09:00.52|  Tx|    1|    CLR_EXPTD|
...
14:09:28.29|  Tx|   93|    CALL     |PortId SVC_IN_0000000000000000000001CC
                      |             |DteClass DTE_23
                      |             |Called DTE 45000816
                      |             |Calling DTE 45000817
                      |             |Incoming DTE 45000816
                      |             |Data  01 00 00 00 52 45 4E 4E 42 41 48 4E
                      |
                      |             |Data size 128
                      |             |Network capabilities 04
                      ||
14:09:35.64|Rx  |   19|    CALLC    |PortId PORT_0010
                      |             |Network capabilities 04
                      ||

VWZ1:

14:55:26.62|Rx  |    1|    CLR_EXPTD|
14:55:54.36|Rx  |   93|    CALL     |PortId SVC_IN_0000000000000000000001CC
                      |             |DteClass DTE_23
                      |             |Called DTE 45000816
                      |             |Calling DTE 45000817
                      |             |Incoming DTE 45000816
                      |             |Data  01 00 00 00 52 45 4E 4E 42 41 48 4E
                      |
                      |             |Data size 128
                      |             |Network capabilities 04
                      ||
14:56:01.70|  Tx|   19|    CALLC    |PortId PORT_0010
                      |             |Network capabilities 04
                      ||


This reconnect results in a new SVC, the old one is changed to state 
"Cleared" on NIS02.

NIS02:


Node nis02 X25 Access Port SVC_IN_0000000000000000000001BE
at 1997-04-10-16:38:05.800+02:00Iinf

Identifiers

    Name                              = SVC_IN_0000000000000000000001BE

Status

    Client                            = X25 Server Client VWZ1
    Remote Port                       = Node 0:.vwz1 X25 Access Port PORT_0008
    Type                              = Switched
    State                             = Cleared
    Reserved                          = ""
    Call Direction                    = Incoming
    Call Association                  = X25 Access Filter ROUTE_ETAG_TEST
    Target DTE Address                = 45000816
    Calling DTE Address               = 45000817
    Protocol Identifier               = '01000000'H
    Group                             = <Default value>
    Channel                           = 2
    DTE Class                         = DTE_23
    Outgoing Packet Size              = 128
    Incoming Packet Size              = 128
    Outgoing Window Size              = 2
    Incoming Window Size              = 2
    Outgoing Throughput Class         = 0
    Incoming Throughput Class         = 0
    Reverse Charging                  = False
    Redirect Reason                   = Not Redirected
    Originally Called Address         = 
    Fast Select                       = No Fast Select
    Calling Address Extension         = <Default value>
    Target Address Extension          = <Default value>
    Local DTE                         = X25 Protocol DTE DTE_23

Counters

    Reference Time                    = 1997-04-10-14:28:16.330+02:00Iinf
    Data Octets Received              = 1247
    Data Octets Sent                  = 2249
    PDUs Received                     = 42
    PDUs Sent                         = 37
    Segments Sent                     = 37
    Segments Received                 = 44

on VWZ1:

Node 0 X25 Access Port PORT_0008
at 1997-04-10-15:26:53.152+02:00I0.149

Identifiers

    Name                              = PORT_0008

Status

    Client                            = Generic Client User Process
"Pid=2620079
C Device=NWA1232:"
    Remote Port                       = <Default value>
    Type                              = Switched
    State                             = Running
    Reserved                          = ""
    Call Direction                    = Incoming
    Call Association                  = X25 Access Filter vorwett
    Target DTE Address                = 45000816
    Calling DTE Address               = 45000817
    Protocol Identifier               = '01000000'H
    Group                             = <Default value>
    Channel                           = 0
    DTE Class                         = DTE_23
    Outgoing Packet Size              = 128
    Incoming Packet Size              = 128
    Outgoing Window Size              = 0
    Incoming Window Size              = 0
    Outgoing Throughput Class         = 0
    Incoming Throughput Class         = 0
    Reverse Charging                  = False
    Redirect Reason                   = Not Redirected
    Fast Select                       = Not Specified
    Calling Address Extension         = <Default value>
    Target Address Extension          = <Default value>
    Local DTE                         = <Default value>

Counters

    Reference Time                    = 1997-04-10-13:14:48.650+02:00I0.383
    Data Octets Received              = 1200
    Data Octets Sent                  = 2249
    PDUs Received                     = 40
    PDUs Sent                         = 39
    Segments Sent                     = 43
    Segments Received                 = 42

T.RTitleUserPersonal
Name
DateLines
509.1ncl>set nsp flow control policy no flow controlUTOPIE::FRUEHWIRTH_MThu May 01 1997 10:249
 	
	ncl>set nsp flow control policy no flow control

fixed it.

see DECNET-OSI_for_VMS #3927

martin
(standin for ralph)