Dana is a network engineer who spent years on the night desk of ISP and campus NOCs. She writes about SNMP, polling and counters, and keeps a printed OID cheat sheet she refuses to throw away.
SNMP & Protocols, Network Monitoring
What ifHCInOctets, ifInErrors and ifOutDiscards really count, how a rate is computed, and the worked math behind a graph that lies after a wrap.
Continue reading Interface counters explained: octets, errors, discards and the 32-bit wrap ›
Five minutes is a habit from the MRTG years. How to pick intervals per metric, with counter wrap math, burst examples and storage costs.
Continue reading How often should you poll? Choosing a polling interval ›
Community strings, USM users, GETBULK and 64-bit counters: what each SNMP version changed, and when v2c is still a fair choice.
Continue reading SNMP v1, v2c and v3: what changed and which one to run ›
