On Thu, 10 Nov 2016 12:49:25 +0000 Pavan wrote: PT> 1. Send multiple (more than 1, for example 5) Snmpv3 PT> traps to a given 'trapsess'
I think you mean send multiple traps in a single PDU. PT> 1. Is this the intended or correct usage from an 'snmpd' PT> point of view ? No. The standard is one PDU per trap/inform/notification. PT> 2. Is it possible for the SNMP manager from NetSNMP to PT> handle such a message with 5 (in this case) traps with in a PT> single usage. By default snmptrapd will treat any PDU formatted in this way as a single trap with lots of varbinds. You can create a custom handler that could parse out additional 'traps' and act on them, but I believe it would still be logged as a single trap. PT> 3. I could not find any SNMP standard for this use case PT> scenario, please guide if possible with any RFC. ( idea here is PT> to refer any RFC that says send only one trap OID in one PDU, a PT> standard violation can be prevented ) The relevant section is: 4.2.6. The SNMPv2-Trap-PDU [...] The first two variable bindings in the variable binding list of an SNMPv2- Trap-PDU are sysUpTime.0 [RFC3418] and snmpTrapOID.0 [RFC3418] respectively. If the OBJECTS clause is present in the invocation of the corresponding NOTIFICATION-TYPE macro, then each corresponding variable, as instantiated by this notification, is copied, in order, to the variable-bindings field. If any additional variables are being included (at the option of the generating SNMP entity), then each is copied to the variable-bindings field So while there is nothing in the protocol to prevent you from adding additional snmpTrapOID.0 instances in a PDU, I do not know of any implementation that would try and extract multiple 'traps' from a single PDU by searching for additional snmptTrapOID.0 instances. Net-SNMP would simply list any additonal trap oids and any other additional varbinds with the trap identified by the snmpTrapOID.0 given in the second variable binding of the PDU. Robert ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ Net-snmp-coders mailing list Net-snmp-coders@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/net-snmp-coders
