net186-config/bird/net186_anycast.conf

define ANYCAST_POPS = [ 104, 201, 202, 221, 241, 401, 411, 501, 402, 223, 222 ];
protocol static default_anycast {
    ipv6;
    route 2a06:a005:2980::/44 reject {
        bgp_large_community.add((200536, 0, 665));
        if (POP !~ ANYCAST_POPS) then {
            bgp_large_community.add((200536, 1, 0));
        }
        if (POP ~ [ 221, 104, 402, 202, 101 ]) then {
            bgp_large_community.add((200536, 115, 1));
        }
    };
    route 2602:2a3::/48 reject {
        if (POP !~ ANYCAST_POPS) then {
            bgp_large_community.add((200536, 1, 0));
        }
        if (POP ~ [ 221, 104, 402, 202, 101 ]) then {
            bgp_large_community.add((200536, 115, 1));
        }
    };
};