Adding Useful Sysctl Settings recommendations.

[ericpulvino]

As part of lessons learned from #1177 adding a useful Sysctl section to docs.

[LabN-CI]

💚 Basic BGPD CI results: SUCCESS, 0 tests failed

Results table

_	_
Result	SUCCESS git merge/1193 1ec4697
Date	09/18/2017
Start	12:00:09
Finish	12:23:29
Run-Time	23:20
Total	1808
Pass	1808
Fail	0
Valgrind-Errors	0
Valgrind-Loss	0
Details	vncregress-2017-09-18-12:00:09.txt
Log	autoscript-2017-09-18-12:00:43.log.bz2

For details, please contact louberger

[NetDEF-CI]

Continuous Integration Result: SUCCESSFUL

Congratulations, this patch passed basic tests

Tested-by: NetDEF / OpenSourceRouting.org CI System

CI System Testrun URL: https://ci1.netdef.org/browse/FRR-FRRPULLREQ-1698/

This is a comment from an EXPERIMENTAL automated CI system.
For questions and feedback in regards to this CI system, please feel free to email
Martin Winter - mwinter (at) opensourcerouting.org.

---

CLANG Static Analyzer Summary

• Github Pull Request 1193, comparing to Git base SHA a7dd519

No Changes in Static Analysis warnings compared to base

79 Static Analyzer issues remaining.

See details at
https://ci1.netdef.org/browse/FRR-FRRPULLREQ-1698/artifact/shared/static_analysis/index.html

[Jafaral]

I would like to have this in, it is just a recommendation list serving as a good reference. We can always update it.

Anyone objecting putting this in?

[donaldsharp]

agreed @Jafaral let's get this in and we can update documentation as we go.

[Jafaral]

@donaldsharp it is in, we should mention this somewhere in the documentation to let the users at least look at it even if they don't want to use it as-is.