Hi,
You cannot expect anything from a request ID other than it is unique
as long as the agent is running (and the range of available numbers
is not exhausted).
SNMP4J (currently) also generates an ID for each response which has the
advantage, that even if the response cannot be fully parsed, it cannot
accidentially related to an existing request.
I will check, if I can remove that ID generation safely. Meanwhile
you have two options:
1. Ignore that fact (according to the SNMP standard, it should not be
relevant
in practice).
2. Generate your own request ID and set it in the PDU before providing it
to the Snmp class for sending.
Hope this helps.
Best regards,
Frank
Am 13.10.2014 13:23, schrieb Mátyás Kuti:
Hello,
We are doing the following:
List<VariableBinding> snmpTable = new ArrayList<VariableBinding>();
for (TreeEvent event : events) {
if (event != null) {
if (event.isError()) {
logger.info
<https://mail.internal.ericsson.com/owa/redir.aspx?C=2ipCqKJBBEyRoKqLqlcn5EPTOE5putEI6g7WPUCTE6ZOVwcy2_JaQ_aA843rf0UcX-2b_mw8x5E.&URL=http%3a%2f%2flogger.info>("oid
[" + oid + "] " + event.getErrorMessage());
}
VariableBinding[] varBindings = event.getVariableBindings();
if (varBindings == null || varBindings.length == 0) {
continue;
}
for (VariableBinding varBinding : varBindings) {
snmpTable.add(varBinding);
}
}
}
...
And we have enforced the GETNEXT behavior by setting:
mTarget.setVersion(SnmpConstants.version1);
We experience, that the request IDs increase by 2 instead of the expected 1:
Java-log output:
2014-09-30 15:05:05,888 [DEBUG] Received message from /192.168.210.1/30165
<https://mail.internal.ericsson.com/owa/redir.aspx?C=2ipCqKJBBEyRoKqLqlcn5EPTOE5putEI6g7WPUCTE6ZOVwcy2_JaQ_aA843rf0UcX-2b_mw8x5E.&URL=http%3a%2f%2f192.168.210.1%2f30165>
with length 58:
30:38:02:01:00:04:05:74:72:61:70:73:a2:2c:02:04:1b:b0:d2:2d:02:01:00:02:01:00:30:1e:30:1c:06:10:2b:06:01:04:01:81:41:81:37:04:01:03:05:01:08:30:04:08:07:de:09:1e:0d:02:27:1e
2014-09-30 15:05:05,888 [DEBUG] Looking up pending request with handle
PduHandle[464572973]
2014-09-30 15:05:05,888 [DEBUG] Cancelling pending request with handle
PduHandle[464572973]
2014-09-30 15:05:05,888 [DEBUG] Running pending async request with handle
PduHandle[464572975] and retry count left 1
2014-09-30 15:05:05,888 [DEBUG] Sending message to 192.168.210.1/30165
<https://mail.internal.ericsson.com/owa/redir.aspx?C=2ipCqKJBBEyRoKqLqlcn5EPTOE5putEI6g7WPUCTE6ZOVwcy2_JaQ_aA843rf0UcX-2b_mw8x5E.&URL=http%3a%2f%2f192.168.210.1%2f30165>
with length 50:
30:30:02:01:00:04:05:74:72:61:70:73:a1:24:02:04:1b:b0:d2:2f:02:01:00:02:01:00:30:16:30:14:06:10:2b:06:01:04:01:81:41:81:37:04:01:03:05:01:08:30:05:00
2014-09-30 15:05:05,941 [DEBUG] Received message from /192.168.210.1/30165
<https://mail.internal.ericsson.com/owa/redir.aspx?C=2ipCqKJBBEyRoKqLqlcn5EPTOE5putEI6g7WPUCTE6ZOVwcy2_JaQ_aA843rf0UcX-2b_mw8x5E.&URL=http%3a%2f%2f192.168.210.1%2f30165>
with length 58:
30:38:02:01:00:04:05:74:72:61:70:73:a2:2c:02:04:1b:b0:d2:2f:02:01:00:02:01:00:30:1e:30:1c:06:10:2b:06:01:04:01:81:41:81:37:04:01:03:05:01:08:31:04:08:07:de:09:1e:0d:02:27:50
2014-09-30 15:05:05,941 [DEBUG] Looking up pending request with handle
PduHandle[464572975]
2014-09-30 15:05:05,941 [DEBUG] Cancelling pending request with handle
PduHandle[464572975]
2014-09-30 15:05:05,941 [DEBUG] Running pending async request with handle
PduHandle[464572977] and retry count left 1
2014-09-30 15:05:05,941 [DEBUG] Sending message to 192.168.210.1/30165
<https://mail.internal.ericsson.com/owa/redir.aspx?C=2ipCqKJBBEyRoKqLqlcn5EPTOE5putEI6g7WPUCTE6ZOVwcy2_JaQ_aA843rf0UcX-2b_mw8x5E.&URL=http%3a%2f%2f192.168.210.1%2f30165>
with length 50:
30:30:02:01:00:04:05:74:72:61:70:73:a1:24:02:04:1b:b0:d2:31:02:01:00:02:01:00:30:16:30:14:06:10:2b:06:01:04:01:81:41:81:37:04:01:03:05:01:08:31:05:00
2014-09-30 15:05:05,978 [DEBUG] Received message from /192.168.210.1/30165
<https://mail.internal.ericsson.com/owa/redir.aspx?C=2ipCqKJBBEyRoKqLqlcn5EPTOE5putEI6g7WPUCTE6ZOVwcy2_JaQ_aA843rf0UcX-2b_mw8x5E.&URL=http%3a%2f%2f192.168.210.1%2f30165>
with length 58:
30:38:02:01:00:04:05:74:72:61:70:73:a2:2c:02:04:1b:b0:d2:31:02:01:00:02:01:00:30:1e:30:1c:06:10:2b:06:01:04:01:81:41:81:37:04:01:03:05:01:08:32:04:08:07:de:09:1e:0d:02:28:1a
2014-09-30 15:05:05,978 [DEBUG] Looking up pending request with handle
PduHandle[464572977]
2014-09-30 15:05:05,978 [DEBUG] Cancelling pending request with handle
PduHandle[464572977]
2014-09-30 15:05:05,978 [DEBUG] Running pending async request with handle
PduHandle[464572979] and retry count left 1
2014-09-30 15:05:05,978 [DEBUG] Sending message to 192.168.210.1/30165
<https://mail.internal.ericsson.com/owa/redir.aspx?C=2ipCqKJBBEyRoKqLqlcn5EPTOE5putEI6g7WPUCTE6ZOVwcy2_JaQ_aA843rf0UcX-2b_mw8x5E.&URL=http%3a%2f%2f192.168.210.1%2f30165>
with length 50:
30:30:02:01:00:04:05:74:72:61:70:73:a1:24:02:04:1b:b0:d2:33:02:01:00:02:01:00:30:16:30:14:06:10:2b:06:01:04:01:81:41:81:37:04:01:03:05:01:08:32:05:00
2014-09-30 15:05:06,026 [DEBUG] Received message from /192.168.210.1/30165
<https://mail.internal.ericsson.com/owa/redir.aspx?C=2ipCqKJBBEyRoKqLqlcn5EPTOE5putEI6g7WPUCTE6ZOVwcy2_JaQ_aA843rf0UcX-2b_mw8x5E.&URL=http%3a%2f%2f192.168.210.1%2f30165>
with length 58:
30:38:02:01:00:04:05:74:72:61:70:73:a2:2c:02:04:1b:b0:d2:33:02:01:00:02:01:00:30:1e:30:1c:06:10:2b:06:01:04:01:81:41:81:37:04:01:03:05:01:08:33:04:08:07:de:09:1e:0d:02:28:3d
2014-09-30 15:05:06,026 [DEBUG] Looking up pending request with handle
PduHandle[464572979]
2014-09-30 15:05:06,026 [DEBUG] Cancelling pending request with handle
PduHandle[464572979]
2014-09-30 15:05:06,027 [DEBUG] Running pending async request with handle
PduHandle[464572981] and retry count left 1
2014-09-30 15:05:06,027 [DEBUG] Sending message to 192.168.210.1/30165
<https://mail.internal.ericsson.com/owa/redir.aspx?C=2ipCqKJBBEyRoKqLqlcn5EPTOE5putEI6g7WPUCTE6ZOVwcy2_JaQ_aA843rf0UcX-2b_mw8x5E.&URL=http%3a%2f%2f192.168.210.1%2f30165>
with length 50:
30:30:02:01:00:04:05:74:72:61:70:73:a1:24:02:04:1b:b0:d2:35:02:01:00:02:01:00:30:16:30:14:06:10:2b:06:01:04:01:81:41:81:37:04:01:03:05:01:08:33:05:00
2014-09-30 15:05:06,077 [DEBUG] Received message from /192.168.210.1/30165
<https://mail.internal.ericsson.com/owa/redir.aspx?C=2ipCqKJBBEyRoKqLqlcn5EPTOE5putEI6g7WPUCTE6ZOVwcy2_JaQ_aA843rf0UcX-2b_mw8x5E.&URL=http%3a%2f%2f192.168.210.1%2f30165>
with length 50:
30:30:02:01:00:04:05:74:72:61:70:73:a2:24:02:04:1b:b0:d2:35:02:01:05:02:01:00:30:16:30:14:06:10:2b:06:01:04:01:81:41:81:37:04:01:03:05:01:08:33:05:00
2014-09-30 15:05:06,077 [DEBUG] Looking up pending request with handle
PduHandle[464572981]
2014-09-30 15:05:06,077 [DEBUG] Cancelling pending request with handle
PduHandle[464572981]
We expect on the agent side that the request IDs increase by 1 just as with
netsnmp's snmpwalk. This behaviour (the request ID increasing by 2) was
verified with a TCP dump also.
What could cause this behaviour? Any idea how to fix it?
Thanks a lot,
Matyas
_______________________________________________
SNMP4J mailing list
[email protected]
https://oosnmp.net/mailman/listinfo/snmp4j
--
---
AGENT++
Maximilian-Kolbe-Str. 10
73257 Koengen, Germany
https://agentpp.com
Phone: +49 7024 8688230
Fax: +49 7024 8688231
_______________________________________________
SNMP4J mailing list
[email protected]
https://oosnmp.net/mailman/listinfo/snmp4j
