| 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 |
Our largest customer in Greece MTB bank is installing an ATM
(teller machines) network using X25 relay pvcs.
The configuration is as following:
____________________________________________
| PVC-1 <----------------------> PVC-1 |
|LLC2 DTE-0 LLC2 DTE-0|
______|_______ _________|_________
| | | |
| MV3100-85 | | DECNIS 500 3.1-8 |
| VMS 6.2 | | NIS1 |
| OSI 6.3-5 | | |
| CYGNUS | -------------------
-------------- BANK |
DECNET |
NETWORK ----> |HDLC LINK ----
SIMULATION | PVC-1 <---------> | A |
| ___________________| T |
| LAPB | DTE-4-3 | M |
-------------------- ----
|W614-4-0 W614-4-3 |
| DECNIS 500 3.1-8 |
| NIS2 |
| |
--------------------
We have setup "X25 RELAY PVC llc2-1-lapb" between LLC2 dte-0 on NIS1
and remote LAPB DTE-4-3 on NIS2. Everything works fine under "normal
conditions".
Our problems start if the ATM is swiched off and on again then the system
can not send data to the ATM. The data are sent to the NIS1 dte-0 but never
reach the NIS2 DTE-4-3. On the other hand data sent from the ATM to the host
arrive at CYGNUS dte-0. All Decnet entities status look O.K. To reestablish
normal communication we have to DISABLE and REENABLE the "X25 RELAY PVC
llc2-1-lapb". Does this sound right? How can the application reestablish
the PVC link? Is the X25 RELAY PVC doing what is supposed to do?
The case is quite critical because we have to prove to the bank that the
Decnis is doing what it should do and the application should take care for
the recovery.If this is the case how the application can do that?
Any help will be greatelly appreciated.
I am attaching the trace files I collected with some comments.The original
trace files are available on ATHINA:: as MTB_HOST.DAT and MTB_NIS2.DAT
Thanks in advance.
Regards,
Argyris.
**************TRACE ON HOST X25L3 DTE DTE-0 **********************
CTF V1.0-00 Page 1
Trace started on 3-MAR-1997 18:32:19.39 Analyzed on 5-MAR-1997 00:41:13.32
Trace File [SYSMGR.TEMP]HOST.DAT;1 Output File [SYSMGR.TEMP]HOST2.LIS;3
-----------+----+-----+<--------Packet-------->+--------------------------------
Time |Evnt|Data |Chn Q Type P P |Data
hh mm ss cc| |Size | M R/S R/S |
-----------+----+-----+<---------------------->+--------------------------------
18:32:19.39|Rx | 131|001M DATA 0/5 |11 ^\000123456 ^\ ^\|
18:32:19.40|Rx | 19|001 DATA 0/6 |0000000 ^\1737FEEC | ATM
18:32:19.55| Tx| 3|001 RR 6/ | |TRANSACTION
18:32:19.55| Tx| 3|001 RR 7/ | |
18:32:31.18| Tx| 131|001M DATA 7/0 |4 ^\000000000 ^\031 | AND
18:32:31.18| Tx| 39|001 DATA 7/1 | KENTPIKO ^JKw ^[(1 | HOST
18:32:31.20|Rx | 3|001 RR 1/ | | RESPONSE
18:32:31.21|Rx | 3|001 RR 2/ | |
18:32:32.35|Rx | 12|001 DATA 2/7 |22 ^\000 ^\ ^\B |
18:32:32.53| Tx| 3|001 RR 0/ | |
*************************************************************
ATM POWERED OFF AND ON
*************************************************************
18:37:01.73|Rx | 5|001 RST C=00 D=00 | | ATM
18:37:01.94| Tx| 3|001 RSTC | |RESTART
18:37:02.46|Rx | 18|001 DATA 0/0 |12 ^\000 ^\ ^\P300000|SEQUENCE
18:37:02.99| Tx| 3|001 RR 1/ | |
18:37:07.34|Rx | 18|001 DATA 0/1 |12 ^\000 ^\ ^\P300000|
18:37:07.53| Tx| 3|001 RR 2/ |
**************************************************************
|
18:37:55.50| Tx| 5|001 RST C=00 D=41 | APPLICATION
18:37:55.60|Rx | 3|001 RSTC | TRYING
18:38:11.42|Rx | 5|001 RST C=00 D=00 | TO REESTABLISH
18:38:11.61| Tx| 3|001 RSTC | CONNECTION
18:38:33.10| Tx| 5|001 RST C=00 D=41 |
18:38:33.19|Rx | 3|001 RSTC |
**************************************************************
18:38:47.14| Tx| 15|001 DATA 0/0 |1 ^\ ^\ ^\2 | HOST
SENDING DATA NO RR FROM NIS1
**************************************************************
18:40:13.69|Rx | 131|001M DATA 0/0 |11 ^\000123456 ^\ ^\039| ATM
18:40:13.70|Rx | 19|001 DATA 0/1 |0000000 ^\8A3BAEA7 | TRANS.
18:40:13.88| Tx| 3|001 RR 1/ | |
18:40:13.88| Tx| 3|001 RR 2/ | |
NO REPLY FROM HOST
**************************************************************
18:40:15.98| Tx| 15|001 DATA 2/1 |1 ^\ ^\ ^\2 | HOST
SENDING DATA NO RR FROM NIS1
**************************************************************
DISABLE/ENABLE X25 RELAY PVC
**************************************************************
18:42:32.66|Rx | 3|001 RR 1/ | |
18:42:32.66| Tx| 131|001M DATA 2/2 |4 ^\000000000 ^\03917221| REPLY
18:42:32.66|Rx | 3|001 RR 2/ | | FROM
18:42:32.66| Tx| 39|001 DATA 2/3 | KENTPIKO ^JKw ^[(1e ^[(|SYSTEM
18:42:32.71|Rx | 3|001 RR 3/ | |FOR
18:42:32.71|Rx | 3|001 RR 4/ | PENDING ATM TRANSACTION
PLUS PENDING RRs
***************************************************************
18:44:55.65|Rx | 131|001M DATA 4/2 |11 ^\000123456 ^\ ^| ATM
18:44:55.67|Rx | 19|001 DATA 4/3 |0000000 ^\18ED137E |COMPLETE
18:44:55.82| Tx| 3|001 RR 3/ | |TRANSACTION
18:44:55.82| Tx| 3|001 RR 4/ | | NOW
18:45:00.11| Tx| 131|001M DATA 4/4 |4 ^\000000000 ^\0439|POSSIBLE
18:45:00.11| Tx| 39|001 DATA 4/5 | KENTPIKO ^JKw ^[(1e|
18:45:00.13|Rx | 3|001 RR 5/ | |
18:45:00.13|Rx | 3|001 RR 6/ | |
18:45:01.25|Rx | 12|001 DATA 6/4 |22 ^\000 ^\ ^\B |
18:45:01.42| Tx| 3|001 RR 5/ | |
****************************************************************
18:45:52.88| Tx| 15|001 DATA 5/6 |1 ^\ ^\ ^\2 | SYSTEM
18:45:52.90|Rx | 3|001 RR 7/ | | NOW
18:45:53.26|Rx | 12|001 DATA 7/5 |22 ^\000 ^\ ^\9 | CAN
18:45:53.43| Tx| 3|001 RR 6/ | | SEND
18:45:54.91| Tx| 15|001 DATA 6/7 |1 ^\ ^\ ^\7 | DATA
18:45:54.93|Rx | 3|001 RR 0/ | | TO ATM
18:45:55.33|Rx | 116|001 DATA 0/6 |22 ^\000 ^\ ^\F ^\10001
18:45:55.50| Tx| 3|001 RR 7/ | | AND
18:45:56.96| Tx| 15|001 DATA 7/0 |1 ^\ ^\ ^\1 | RECEIVE
18:45:56.97|Rx | 3|001 RR 1/ | | ATM
18:45:57.28|Rx | 12|001 DATA 1/7 |22 ^\000 ^\ ^\9 | REPLY
18:45:57.44| Tx| 3|001 RR 0/ | |
18:45:58.54|Rx | 18|001 DATA 1/0 |12 ^\000 ^\ ^\P300000|
18:45:58.78| Tx| 3|001 RR 1/ | |
TRACE ANAL HOST.DAT/DATA=ASCII/TRUNC/OUT=HOST2.LIS/WIDTH=80
*******************************************************************************
*****NIS2 X25L3 DTE DTE-4-3 TRACE*****
CTF V1.0-00 Page 1
Trace started on 3-MAR-1997 16:30:47.85 Analyzed on 5-MAR-1997 01:19:26.66
Trace File [SYSMGR.TEMP]NIS2.DAT;1 Output File [SYSMGR.TEMP]NIS2_2.LIS;1
-----------+----+-----+<--------Packet-------->+--------------------------------
Time |Evnt|Data |Chn Q Type P P |Data
hh mm ss cc| |Size | M R/S R/S |
-----------+----+-----+<---------------------->+--------------------------------
16:30:47.85|Rx | 131|001M DATA 5/5 |11 ^\000123456 ^\ ^\ | ATM
16:30:47.86| Tx| 3|001 RR 6/ | |
16:30:47.87|Rx | 19|001 DATA 5/6 |0000000 ^\1737FEEC |TRANSACT.
16:30:47.88| Tx| 3|001 RR 7/ | |
16:30:59.67| Tx| 131|001M DATA 7/5 |4 ^\000000000 ^\0312 | AND
16:30:59.67| Tx| 39|001 DATA 7/6 | KENTPIKO ^JKw ^[(1e |RESPONSE
16:30:59.91|Rx | 3|001 RR 7/ | | FROM
16:31:00.82|Rx | 12|001 DATA 7/7 |22 ^\000 ^\ ^\B | HOST
16:31:00.83| Tx| 3|001 RR 0/ | |
***********************************************************
ATM POWERED OFF AND ON
***********************************************************
16:33:32.98| Tx| 5|000 RSTRT C=07 D=00 | | ATM
16:33:33.05|Rx | 5|000 RSTRT C=00 D=00 | | RESTART
16:35:30.19|Rx | 5|001 RST C=00 D=00 | |
16:35:30.42| Tx| 3|001 RSTC | |
16:35:30.92|Rx | 18|001 DATA 0/0 |12 ^\000 ^\ ^\P300000|
16:35:30.93| Tx| 3|001 RR 1/ | |
16:35:35.80|Rx | 18|001 DATA 0/1 |12 ^\000 ^\ ^\P300000|
16:35:35.81| Tx| 3|001 RR 2/ | |
***********************************************************
16:36:23.99| Tx| 5|001 RST C=00 D=41 | APPLICATION
16:36:24.06|Rx | 3|001 RSTC | TRYING
16:36:24.56|Rx | 5|002 RST C=00 D=00 | TO
16:36:24.56| Tx| 5|002 CLR C=13 D=14 | REESTABLISH
16:36:24.64|Rx | 5|002 RST C=00 D=00 | CONNECTION
16:36:39.89|Rx | 5|001 RST C=00 D=00 | (CHANNEL 2 NOT CONFIGURED
16:36:40.10| Tx| 3|001 RSTC | ON NIS2)
16:37:01.58| Tx| 5|001 RST C=00 D=41 |
16:37:01.65|Rx | 3|001 RSTC |
************************************************************ | ATM
16:38:42.16|Rx | 131|001M DATA 0/0 |11 ^\000123456 ^\ ^\ |TRANS.
16:38:42.17| Tx| 3|001 RR 1/ | |NO
16:38:42.18|Rx | 19|001 DATA 0/1 |0000000 ^\8A3BAEA7 |RESPONSE
16:38:42.19| Tx| 3|001 RR 2/ | |FROM
16:39:24.56|0021| 4|002 Clear Timer Expired | |HOST
**************************************************************
DISABLE / ENABLE NIS1 X25 RELAY PVC
**************************************************************
16:43:24.13|Rx | 131|001M DATA 0/2 |11 ^\000123456 ^\ | ATM
16:43:24.14| Tx| 3|001 RR 3/ | |TRANS.
16:43:24.15|Rx | 19|001 DATA 0/3 |0000000 ^\18ED137E | AND
16:43:24.16| Tx| 3|001 RR 4/ | |RESPONSE
16:43:28.60| Tx| 131|001M DATA 4/0 |4 ^\000000000 ^\04399|FROM
16:43:28.60| Tx| 39|001 DATA 4/1 | KENTPIKO ^JKw ^[(1e |HOST
16:43:28.84|Rx | 3|001 RR 2/ | |
16:43:29.72|Rx | 12|001 DATA 2/4 |22 ^\000 ^\ ^\B |
16:43:29.73| Tx| 3|001 RR 5/ | |
**************************************************************
16:44:21.37| Tx| 15|001 DATA 5/2 |1 ^\ ^\ ^\2 | HOST
16:44:21.47|Rx | 3|001 RR 3/ | | SENDING
16:44:21.74|Rx | 12|001 DATA 3/5 |22 ^\000 ^\ ^\9 | DATA
16:44:21.75| Tx| 3|001 RR 6/ | | TO ATM
16:44:23.40| Tx| 15|001 DATA 6/3 |1 ^\ ^\ ^\7 | AND
16:44:23.50|Rx | 3|001 RR 4/ | | ATM
16:44:23.80|Rx | 116|001 DATA 4/6 |22 ^\000 ^\ ^\F ^\10001|
16:44:23.82| Tx| 3|001 RR 7/ | |RESPONDING
16:44:25.45| Tx| 15|001 DATA 7/4 |1 ^\ ^\ ^\1 |
16:44:25.55|Rx | 3|001 RR 5/ | |
16:44:25.75|Rx | 12|001 DATA 5/7 |22 ^\000 ^\ ^\9 |
16:44:25.77| Tx| 3|001 RR 0/ | |
16:44:27.01|Rx | 18|001 DATA 5/0 |12 ^\000 ^\ ^\P300000|
16:44:27.02| Tx| 3|001 RR 1/ | |
TRACE ANAL NIS2.DAT/DATA=ASCII/TRUNC/OUT=NIS2_2.LIS/WIDTH=80
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 3566.1 | MARVIN::CARLINI | Thu Mar 06 1997 04:05 | 21 | ||
The trace taken on the VAX host shows some data gets through: > ************************************************************* > ATM POWERED OFF AND ON > ************************************************************* >18:37:01.73|Rx | 5|001 RST C=00 D=00 | | ATM >18:37:01.94| Tx| 3|001 RSTC | |RESTART >18:37:02.46|Rx | 18|001 DATA 0/0 |12 ^\000 ^\ ^\P300000|SEQUENCE >18:37:02.99| Tx| 3|001 RR 1/ | | >18:37:07.34|Rx | 18|001 DATA 0/1 |12 ^\000 ^\ ^\P300000| >18:37:07.53| Tx| 3|001 RR 2/ | > ************************************************************** But then data stops, after a sequence of restarts (which all get confirmed properly). In the "failed" state, what do the NIS1 and NIS2 DTE statuses and PVC statuses look like from NCL? Antonio | |||||
| 3566.2 | Different response in each direction? | ATHINA::TSAKALOS | Thu Mar 06 1997 05:53 | 40 | |
Antonio thanks for your quick reply. >>> The trace taken on the VAX host shows some data gets through: >>> But then data stops, after a sequence of restarts (which all >>> get confirmed properly). Yes the data sent by ATM arrive at the host llc2 dte and all get confirmed but application is not responding. So the next step is to try to reestablish connection from host thats why you see the sequence of resets initiated manually from the host. After the restarts the host is trying to send data to the atm, the data arrive at NIS1 llc2 dte but is not confirmed.(Relay function seems to be hanging in this direction) On the next step the ATM initiates a transaction and data reaches the host dte (Relay seems to be working in this direction). >>> In the "failed" state, what do the NIS1 and NIS2 DTE statuses >>> and PVC statuses look like from NCL? The NIS1 llc2 dte dte-0 is always in state RUNNING. The NIS2 Lapb dte dte-4-3 is synchronising after LAPB link timeout then as soon as the LAPB link is reestablished the NIS2 dte comes up and it sends the RSTRT C=07 D=00 and the ATM dte is responding with a RSTRT C=00 D=00 (This is shown in NIS2 trace "ATM restart sect.") As profiles we are using in the LLC2 DTE ISO8881 with all default values and in the LAPB link ISO8208 again with all default values. Do we have to change any timer values? All PVC statuses are Allocated = True. I tried deleting and recreating the host llc2 dte pvc then reallocating the PVC from the application but nothing changed. The only way to get out of this situation is to disable the "X25 relay PVC" wich in turns deletes the 2 X25 Access Ports no NIS1 and the the 1 X25 Access port on NIS2 then by reenabling the relay all X25 Access ports are recreated and everything works fine. Why do you think the X25 relay is behaving differently in one direction than the other? Any help will be greatelly appreciated. Argyris. | |||||