| Title: | Proudly built by the engineers of NaC Australia |
| Moderator: | DELNI::MUGGERIDGE |
| Created: | Mon Oct 12 1992 |
| Last Modified: | Fri Jun 06 1997 |
| Last Successful Update: | Fri Jun 06 1997 |
| Number of topics: | 908 |
| Total number of notes: | 3829 |
Hello,
We have developped a MTP (proprietary Ericsson protocol) transport
layer above WAN support for Digital Unix V2.0A (XXAACC201).
Everything works fine except that in some rare occasions (the LAN seems
to have problem and LLC2 links are bouncing).
In this case the X25Listen routine returns -125 (X25RC_PORTABORT).
According to the man pages, this status should never be returned....
So what.... What should be our rection when X25Listen returns such a
status ???? Which routine (or set of routines should we call in order
to be able to receive incoming calls again ?)
This problem is seen at customer site and we have to provide them with
a fix as soon as possible.
Any help or hint would be REALLY appreciated.
Regards,
Damien.
PS: here is the DECnet log of events which leads X25Listen to return this status:
Event: Port Terminated
from: Node voda:.newbury.Helium X25 Access
at : 1997-05-07-15:33:48.709+01:00I-----
Client = Generic Client User Process "PID_375
Type = Switched
State = Cleared
Call Direction = Incoming
Call Association = X25 Access Filter becny
Target DTE Address = 906198001
Calling DTE Address = 9061331
Protocol Identifier = 'C0000000'H
Channel = 1024
DTE Class = llc2-class-nygwy9
Outgoing Packet Size = 1024
Outgoing Packet Size = 1024
Incoming Packet Size = 1024
Outgoing Window Size = 2
Incoming Window Size = 2
Reverse Charging = False
Redirect Reason = Not Redirected
Fast Select = Not Specified
Calling Address Extension = /3600000009061331
Target Address Extension = /3600000906198001
DTE = X25 Protocol DTE dte-nygwy9
Reference Time = 1997-05-07-15:33:45.497+01:00I-----
Data Octets Received = 109
Data Octets Sent = 9
PDUs Received = 6
PDUs Sent = 4
Segments Received = 7
Segments Sent = 4
Event: Port Terminated
from: Node voda:.newbury.nygwy9 X25 Access
at : 1997-05-07-15:32:17.013+01:00I-----
Client = X25 Relay Client SYNC-PORT-RELAY
Remote Port = Node 0:. X25 Access Port SVC_IN_0000
00C13B
Type = Switched
State = Calling
Reserved = ""
Call Direction = Outgoing
Call Association =
Target DTE Address = 906198001
Calling DTE Address = 9061331
Protocol Identifier = 'C0000000'H
Group =
Channel = 1024
DTE Class = llc2-class-0
Outgoing Packet Size = 1024
Incoming Packet Size = 1024
Incoming Packet Size = 1024
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>
DTE = X25 Protocol DTE dte-0
Reference Time = 1997-05-07-15:32:13.793+01:00I-----
Data Octets Received = 9
Data Octets Sent = 109
PDUs Received = 4
PDUs Sent = 6
Segments Sent = 6
Segments Received = 4
Event: Port Terminated
from: Node voda:.newbury.nygw10 X25 Access
at : 1997-05-07-15:38:11.273+01:00I-----
Client = X25 Relay Client SYNC-PORT-RELAY
Remote Port = Node 0:. X25 Access Port SVC_SW_0000
00F68E
Type = Switched
State = Open
Reserved = ""
Call Direction = Incoming
Call Association = X25 Access Filter SYNC-PORT-FILTER
Target DTE Address = 916108002
Calling DTE Address = 9061333
Protocol Identifier = 'C0000000'H
Group =
Channel = 16
DTE Class = hawk
DTE Class = hawk
Outgoing Packet Size = 1024
Incoming Packet Size = 1024
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>
DTE = X25 Protocol DTE DTE-4-2
Reference Time = 1997-05-07-15:38:10.043+01:00I-----
Data Octets Received = 106
Data Octets Sent = 9
PDUs Received = 6
PDUs Sent = 4
Segments Sent = 4
Segments Received = 7
Event: Port Terminated
from: Node voda:.newbury.nygwy9 X25 Access
at : 1997-05-07-15:32:17.103+01:00I-----
Client = X25 Relay Client SYNC-PORT-RELAY
Remote Port = Node 0:. X25 Access Port SVC_SW_0000
00C13B
Type = Switched
State = Open
Reserved = ""
Call Direction = Incoming
Call Association = X25 Access Filter SYNC-PORT-FILTER
Target DTE Address = 906198001
Calling DTE Address = 9061331
Protocol Identifier = 'C0000000'H
Group =
Channel = 16
Channel = 16
DTE Class = becny
Outgoing Packet Size = 1024
Incoming Packet Size = 1024
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>
DTE = X25 Protocol DTE DTE-4-1
Reference Time = 1997-05-07-15:32:13.773+01:00I-----
Data Octets Received = 109
Data Octets Sent = 9
PDUs Received = 6
PDUs Sent = 4
Segments Sent = 4
Event: SVC Failed
from: Node voda:.newbury.t1gwy2 X25 Protocol DTE dte-0
at : 1997-05-07-15:33:07.342+01:00I-----
Remote DTE = 7
Call Time = 1997-05-07-15:33:07.332+01:00I-----
Direction = Outgoing
Cause = 0
Diagnostic = 0
Failure Reason = Remote Reject
Channel = 1024
Event: DTE Down
from: Node voda:.newbury.Helium X25 Protocol DTE dte-nygw10
at : 1997-05-07-15:34:05.282+01:00I-----
Configuration error = False
LAPB Link Disabled = False
| T.R | Title | User | Personal Name | Date | Lines |
|---|---|---|---|---|---|
| 902.1 | OZROCK::HARTWIG | Arthur Hartwig, TaN Engineering-Australia | Sat May 17 1997 01:08 | 31 | |
> Everything works fine except that in some rare occasions (the LAN seems > to have problem and LLC2 links are bouncing). > > In this case the X25Listen routine returns -125 (X25RC_PORTABORT). A quick look at the source suggests there is a window in X25Listen between the time it accepts the incoming call and then asks the system for the call details in which the call could clear and consequently the request for call details fail. > According to the man pages, this status should never be returned.... I suggest you lodge an IPMT against X25Listen. > So what.... What should be our rection when X25Listen returns such a > status ???? Which routine (or set of routines should we call in order > to be able to receive incoming calls again ?) I suspect the best thing to do is "pretend it didn't happen" and just call X25Listen again. The current behaviour is possibly not very useful (X25Listen says "Oh there was an incoming call that you were interested in, but by the way it cleared before I could get any details on it."). Either way (useful or not) the documentation and code should match. If you lodge an IPMT (and nothing will change if there isn't an IPMT about this) then you might like to also express your opinion on whether the code OR the documentation should change. I think I'd vote for a change in the code and add to the documentation to specifically call out that X25Listen will listen for another call if it is notified on an incoming call and the call clears before the call details can be obtained the X25Listen will wait for another call. | |||||
| 902.2 | OK, I'll ignore this status | AEOENG::BOMMART | WaveWalker 887-4108 | Sat May 17 1997 02:22 | 11 |
Arthur, Thank you for your quick answer. OK, I'll ignore this status and call X25Listen again. I agree with you, maybe X25Listen should not bother its caller if it cannot give any detail about an incomming call which has been cleared almost immediatly. Best regards, Damien. | |||||