[sdnog] filtering traffic on BGP

[Nishal Goburdhan]

On 7 Mar 2016, at 13:11, Manhal Mohammed wrote:

> Dear Mr  Nishal  , Samir and Mr Bernd , thank you very much for your 
> valuable information , it was very helpful ind informative for me ^_^ 
> now i just have to practice more on BGP filtering and i will be very 
> grateful if you gave  or guide me to some scenarios or documents that 
> can help.

manhal,

you can easily build and setup virtual labs using a variety of software. 
  this is one of the more recent (and interesting) router softwawre 
i’ve spotted recently:  http://freerouter.nop.hu.  then of course, 
there’s:
* bird
* quagga
* goBGP
* exabgp
…and lots of other routing software that you can think about using as 
well.

to setup labs, i’d suggest looking through the material from afnog 
workshops.  start with the SI-E class:
http://ws.afnog.org

remember that bgp is a just tool;  what’s more important than simply 
learning bgp, is learning how the network is *meant* to operate first.  
during the sdnog best practices class during sdnog-2, we spoke about 
working your way “up the stack”  - that means an understanding of 
cabling, addressing, then network segregation depending on services, 
setting up a proper switching environment, running an IGP (ospf/is-is) 
properly, and, then, BGP.   it might seem counter-intuitive at first, 
since you might just be interested in BGP, but, in the long run, it’ll 
serve you much better.

—n.