Re: Check bgp_path.len without some AS

Hi,

I need to remove two As numbers per bgp_path

You can use a set as a second parameter. From the documentation: "delete(P,A) ... A may also be an integer set". On Fri, Jan 4, 2019 at 3:37 AM Xavier Trilla <xavier.trilla@clouding.io> wrote:

Hi Alexander,

That’s interesting I will play with this syntax, although I’m not 100% sure if I will be able to use it (I need to remove two As numbers per bgp_path) but maybe I can work something out.

Thanks! Xavier

El 4 gen 2019, a les 1:47, Alexander Zubkov <green@qrator.net> va escriure:

...

Hi,

Something like this worked for me:

delete(bgp_path, XXXX).len < N

...

On Fri, Jan 4, 2019 at 12:19 AM Xavier Trilla <xavier.trilla@clouding.io> wrote:

Hi,

For some route selection configurations I need to check the bgp_path.len without some AS numbers.

I tried something like:

bgp_path.delete(AS_1);

bgp_path.delete(AS_2);

if bgp_path.len < N then …

But doing this I modify permanently the AS path.

I’ve tried using a temp variable, but looks like bird doesn’t allow to create bgppath “variables”.

Any ideas about how this could be achieved?

Thanks!

Xavier