Cacti

I just checked into this again, and I realize now that I am an idiot. That whole strange behavior I just described is for vmstat, not iostat. So yes, with net-snmp on your server you can associate a "script" like this: iostat -xtc | grep "sd0" with an OID and then snmpget it from...

This sounds like a good idea; one comment on iostat however - at least on Solaris, the first output from iostat is meaningless. So to get anything meaningful from it, you have to run it continuously with an interval, and ignore the first line. I don't know if linux' iostat works the same way or not....

OK, in this example a source router (10.1.1.1) will be sending probes to a destination router (10.2.2.2) to simulate a voice call so we can measure jitter (variation in delay). Presumedly, these two routers are connected directly to one another via a T1 or some other WAN link. (Your probes can be se...

Just some other stuff I've learned about SAA that I thought I'd share in case anyone else is new to this like I was: You need to turn on 'rtr responder' on both the source and destination routers. The SAA responder in different IOS versions has different capabilities - for example, if you want one-w...

Works great; thanks. Now that I think about it, I see why this is necessary - if I remove the "rtr 1" operation from my router, for example, even though the other one is "rtr 2" there still will only be one index value for the SNMP table, so you can't use the SNMP table index as ...

jeanvav - you are my hero. I have 2 rtr probes defined in my router (IOS 12.3(4)T6): rtr responder rtr 1 type jitter dest-ipaddr 10.3.200.11 dest-port 16384 num-packets 1000 request-data-size 200 tos 32 rtr schedule 1 life forever start-time now rtr 2 type jitter dest-ipaddr 10.3.200.11 dest-port 16...