Is there a way to log SNMP information to the local router and download it or access it at a later date? Looking to capture bandwith and CPU utilization as well as any error messages, etc but won't have an SNMP server set up for about a week.
Logging will capture you to a syslog the console messages. That wont have the counters you are looking for.
I was more thinking that you could run an rsh script from a server or linux end device and get periodically the show interface outputs for example. For that you need to enable rcmd on the router as per :
Or you could enable NBAR on the router and periodically over RSH get the show ip nbar protocol-discovery output that will have the 5 minutes counters per protocol.
Protocol counters also do come handy when you monitor traffic, it gives you a supplemental picture of what's happening.
Example of NBAR output:
Last clearing of "show ip nbar protocol-discovery" counters 4w5d
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