Lab 7 9.1 RMON Delta vs. Absolute
I just don't understand the difference between delta and absolute thresholds in RMON. I know this is an often discussed topic, and it's given me a lot of trouble in labs and the real world. Lab 7 task 9.1 says to configure RMON trap when ifEntry.11 from BB2 exceeds 15000. Now in my mind that is a variable. 15000 = X. In this case X has an absolute value that we are looking for. Why then is this supposed to be delta in the config? I thought delta was for measuring against a previous threshold. Is it delta because we are also looking for a bottom threshold of 5000? Or is it supposed to be delta based on the type of MIB? If it is, how can we know what to configure when? I am sure things like CPU utilization reaching 80% for example are an absolute threshold... but interface mibs give me fits... I just can't seem to figure it out... any help?
Thanks in advance for the help! i am attempting SP lab for the 3rd time on May 4th! Hopefully third times a charm! These tests are not as well written and straight forward as the R&S. But it's still fun... to a point .