Only take in consideration limit upper than 50

templates/bird_v4.j2

@@ -2,6 +2,8 @@ protocol bgp {{ ix_name }}_{{ neighbor_as }}{%- if session_num > 1 %}_{{ session
     neighbor {{ neighbor_ipv4 }} as {{ neighbor_as }};
     description "{{ ix_name }} / {{ description }}";
     {%- if limit_ipv4 %}
+        {% if limit_ipv4 > 50 %}
     import limit {{ limit_ipv4 }};
+        {%- endif %}
     {%- endif %}
 }

templates/bird_v6.j2

@@ -2,6 +2,8 @@ protocol bgp {{ ix_name }}_{{ neighbor_as }}{%- if session_num > 1 %}_{{ session
     neighbor {{ neighbor_ipv6 }} as {{ neighbor_as }};
     description "{{ ix_name }} / {{ description }}";
     {%- if limit_ipv6 %}
+        {% if limit_ipv6 > 50 %}
     import limit {{ limit_ipv6 }};
+        {%- endif %}
     {%- endif %}
 }