As Nick R already mentioned, you need IF-MIB. details matter though.
You can correlate all OIDs to an interface name below by snmp walking ifName. 188.8.131.52.184.108.40.206.1.1.1 .
High Speed interfaces
For high-speed interfaces (100Mbps or above) you should use 64-bit counters if the device supports them:
Low Speed interfaces
Lower speed interfaces can get by with 32-bit counters. If you use 32-bit counters on high-speed interfaces, they can wrap quickly; a 10 Mbps stream of back-to-back, full-size packets causes ifInOctets to wrap in just over 57 minutes. At 100 Mbps, the minimum wrap time is 5.7 minutes, and at 1 Gbps, the minimum is 34 seconds Note 1
Cacti is the most strait forward way to go.
Download an install it, it will work with a lot of routers and switches straight out of the box. Also, Observium is even easier to get going but less customisable than Cacti; although it does also work with most switches and routers strait out of the box.
Update. Forgot to say these include the MIBs!
answered Jun 28 ’12 at 20:17
+1 for observium, it s great if you re a service provider Mike Pennington Jun 28 ’12 at 21:03
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