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Reduce discovery snmp load of Cisco VTP vlans module #10510
Current 'vlans' discovery does load the complete vtpVlanEntry and dot1dStpPortEntry table even if it only uses very few OIDs in them.
Some nexus 55xx devices have a buggy SNMP implementation and get killed (CPU goes high, and forwarding can even be impacted).
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Tested OK on Nexus 5596, Cat 6500, Cat 2960x. On Nexus, load on CPU is now back to more acceptable values, even with the buggy firmware. And most importantly, the discovery now succeed everytime instead of failing more or less badly.
Ready for merge for me, @librenms/reviewers
Aug 14, 2019
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