Reliable trap infrastructure:

The "reliable traps" option offers the flexibility for the management system to retrieve lost traps. Network elements use a sequence number for each trap being sent. Whenever the management system receives a trap that is out of sequence, it can connect to the network element and fetch the traps that were lost. While designing the reliable traps MIB, we recommend that you follow these two key strategies:

Maintain a sequence number for each trap that is sent from each and every network element. Make sure that this sequence number is maintained as the key for the trap table. This will ensure that fetching a lost trap is straightforward. If the sequence number is maintained as part of a column instead of part of an index, then the number of SNMP queries to be done by the management system will increase.

The trap table should have a set of columns that are able to accommodate the varbinds attached to each trap. Each trap might have a different set of varbinds. Therefore, it is necessary to design the trap table efficiently to include the correct set of columns.

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