How to set local pref based on prefix or AS path for a specific peer?

[netstx]

I would like to do some basic traffic engineering and able to set higher local pref on specific prefixes or specific AS PATH on routes received by a specific peer. Is this possible without custom config?

Thanks,
Rafael

[netstx]

Sorry for the noise - shortly after creating this issue I managed to figure this out.

I used the following config line in my peer:

pre-import-accept: 'if (bgp_path ~ [= 123 789 * =]) then bgp_local_pref=300;'

Now I am wondering if there's another way of doing this utilizing some other pathvector config parameter (maybe one that was purposed made for this?), rather than injecting into bird.conf.

Thanks,
Rafael

[natesales]

The as-prefs option lets you do a 1:1 mapping from origin ASN to local pref, but there isn't a way to match by AS path yet. I'll keep this open to track implementation