MMP BadGuys Configuration - BGLinear Parameter Setting
(Doc ID 2571868.1)
Last updated on AUGUST 02, 2019
Applies to:Oracle Communications Messaging Server - Version 8.0.1 and later
Information in this document applies to any platform.
With a mixed set of MMPs, below described problem is observed while migrating from Solaris 10 to 11.4.
Oracle Communications Messaging Server 220.127.116.11.0 64bit (built Sep 4 2015)
Oracle Communications Messaging Server 18.104.22.168.20190701 64bit (built Jul 1 2019)
What is the significance of BGLinear parameter, with respect to the BadGuys configuration on the MMPs?
The answer to this, as found in the MMP reference guide, says that this parameter permits to select a form of "bad guy" penalty decay. By default, this parameter is set to zero (0) or "no", so the accumulation of the badness can be different from linear. However, while testing with the default configuration, it appears that it is linear.
Considering the followig default configuration:
Q1) Are the following statements correct ?
- if BGLinear is "no" the IP keeps its accumulated badness during the period configured in BGDecay before being forgiven to badness = 1
- if BGLinear is "yes" the IP keeps its accumulated badness during the period configured in BGDecay and after this period starts to decrease its badness in the linear way arriving smoothly to badness = 1
So, BGLinear is a more strict method to forgive the IP.
Q2) Does Oracle have any recommendations on BadGuys settings?
Q3) Which information is kept in memory table for BadGuys?
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