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SLA operations, MIBs and what checks overlap. Looking for best practices and suggestions.

I was reading the "New to Networking vol2.pdf" SolarWinds Technical Reference The Basics of Cisco IP SLA and a point was raised to avoid overlapping tests. I'm looking for some assistance here checking my flow (below) to see if I missed anything, and possibly get a second confirmation on my work.

First I downloaded the IPSLAManagerAdministratorGuide.PDF and compared the MIBs in the tables that appear in Appendix C. Unofrtunately ICMP Path Echo and ICMP Path Jitter are not broken out to the specific MIB level that all the others are.

Question 1: Does anybody have a list of those MIBs so I can cross check to the others to find overlaps?

Next because I have a full-mesh set up between 20 sites I was anxious to get some redundant checks eliminated in order to free up some CPU cycles on the devices as well as quiet my network traffic. I then went in to one sample screen for each operation and wrote out a chart looking for which items each had (Operation Details, Guages, Node Details, Mix/Max/Avg of Round Trip Time, etc) and was able to come up with the following:

ICMP Echo offered the fewest metrics.

ICMP Path Echo offered everything in "ICMP Echo", plus more.

ICMP Path Jitter offered everything in "ICMP Path Echo", plus more.

Question 2: Is my assumption accurate that, like selecting a cable tv plan, does the ICMP progression I mention below accurately speak to include each item in the "tier" lower than it?

I have my doubts because reading the MIB tables leads me to believe that the "rttMonCtrlAdminRttType" Value differs between 9 (Jitter) and 5 (UdpEcho) or 1 (Echo) depending on the operation so that would likely not be an apples-to-apples comparison.

I couldn't find any advantage to UDP Jitter that wasn't covered in VoIP UDP Jitter so I removed all of the UDP Jitter operations.

Question 3: If the MIBs for ICMP Path Echo include everything for ICMP Echo I should be safe to remove ICMP Echo and get all that information from the ICMP Path Echo (which includes hop-by-hop) right?

Thanks in advance for your replies.

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candycorn

*bump*

Any help would be appreciated. I've been unable to locate answers to my questions through search.

TIA

mcbridea

The ICMP and ICMP path could be considered ovelapping tests. The ICPM test is jut ping, hwole the ICMP path is trace route. If trace route is successful, so will be ping. So you could eliminate ICMP, but that test has such little impact on devices and the network, you won't get much in return. ICMP jitter is good for showing interpacket variablity but it won't idrectly traslate to VoIP. If you have a VoID system I seggest using the VOiP test instead of ICMP jitter. I if you don't have voice of video you can remoce ICMP jitter.