Merge pull request #538 from sever-sever/T2850_bgp_template

frr-template: T2850: Add BGP template for FRR

1 files changed, 966 insertions, 0 deletions

diff --git a/data/templates/frr/bgp.frr.tmpl b/data/templates/frr/bgp.frr.tmpl
index cdf4cb4fe..d011a1e85 100644
--- a/data/templates/frr/bgp.frr.tmpl
+++ b/data/templates/frr/bgp.frr.tmpl
@@ -1 +1,967 @@
+{% set conf_bgp = nbgp -%}
+{% for asn in nbgp -%}
 !
+router bgp {{ asn }}
+ no bgp default ipv4-unicast
+
+{#- set 'conf_bgp[asn].parameters' as bgp_params #}
+{%- set bgp_params = conf_bgp[asn].parameters %}
+{%- set bgp_afi = conf_bgp[asn].address_family %}
+
+{#- START Global ASN address-family section; set protocol bgp xxx address-family #}
+{%- if 'address_family' in conf_bgp[asn] %}
+{%-   for type in bgp_afi %}
+{%-     if type == "ipv4_unicast" %}
+ !
+ address-family ipv4 unicast
+{# need to check #}
+{%- if 'aggregate_address' in bgp_afi[type] %}
+{%-   for ip in bgp_afi[type].aggregate_address %}
+{%-      if ( ('as_set' and 'summary_only') in bgp_afi[type].aggregate_address[ip]  ) %}
+  aggregate-address {{ ip }} as-set summary-only
+{%-      elif 'as_set' in bgp_afi[type].aggregate_address[ip]  %}
+  aggregate-address {{ ip  }} as-set
+{%-      elif 'summary_only' in bgp_afi[type].aggregate_address[ip]  %}
+  aggregate-address {{ ip }} summary-only
+{%-      else %}
+  aggregate-address {{ ip }}
+{%-      endif %}
+{%-   endfor %}
+{%- endif %}
+{# END aggregate address#}
+{#- redistribute #}
+{# need to check. dont work. 
+   'metric' and 'route_map' match also only 'route_map'
+   'table' parameter also include in protocol, its not what I want #}
+{%-  if 'redistribute' in bgp_afi[type] %}
+{%-    if 'table' in bgp_afi[type].redistribute %}
+ redistribute table {{bgp_afi[type].redistribute.table}}
+{%-    endif %}
+{%-    for protocol in bgp_afi[type].redistribute %}
+{%-      if ( ('metric' and 'route_map') in bgp_afi[type].redistribute[protocol] ) %}
+ redistribute {{protocol}} metric {{bgp_afi[type].redistribute[protocol].metric}} route-map {{bgp_afi[type].redistribute[protocol].route_map}}
+{%-      elif 'metric' in bgp_afi[type].redistribute[protocol] %}
+ redistribute {{protocol}} metric {{bgp_afi[type].redistribute[protocol].metric}} 
+{%-      elif 'route_map' in bgp_afi[type].redistribute[protocol] %}
+ redistribute {{protocol}} route-map {{bgp_afi[type].redistribute[protocol].route_map}}
+{%-      else %} 
+ redistribute {{protocol}}
+{%-      endif %}
+{%-    endfor %}
+{%-  endif %}
+{#- END redistribute #}
+
+{%-  if 'network' in bgp_afi[type] %}
+{%-    for net in bgp_afi[type].network %}
+  network {{ net }}
+{%-    endfor %}
+{%-       endif %}
+ exit-address-family
+ !
+{%-  endif %}
+
+{%-  if type == "ipv6_unicast" %}
+ !
+ address-family ipv6 unicast
+{%- if 'aggregate_address' in bgp_afi[type] %}
+{%-   for ip in bgp_afi[type].aggregate_address %}
+{%-      if ( ('as_set' and 'summary_only') in bgp_afi[type].aggregate_address[ip]  ) %}
+  aggregate-address {{ ip }} as-set summary-only
+{%-      elif 'as_set' in bgp_afi[type].aggregate_address[ip]  %}
+  aggregate-address {{ ip  }} as-set
+{%-      elif 'summary_only' in bgp_afi[type].aggregate_address[ip]  %}
+  aggregate-address {{ ip }} summary-only
+{%-      else %}
+  aggregate-address {{ ip }}
+{%-      endif %}
+{%-   endfor %}
+{%- endif %}
+{# END aggregate address#}
+
+{#- redistribute #}
+{# need to check. doesn't work. 'metric' and 'route_map' match also only 'route_map' #}
+{%-  if 'redistribute' in bgp_afi[type] %}
+{%-    if 'table' in bgp_afi[type].redistribute %}
+ redistribute table {{bgp_afi[type].redistribute.table}}
+{%-    endif %}
+{%-    for protocol in bgp_afi[type].redistribute %}
+{%-      if ( ('metric' and 'route_map') in bgp_afi[type].redistribute[protocol] ) %}
+ redistribute {{protocol}} metric {{bgp_afi[type].redistribute[protocol].metric}} route-map {{bgp_afi[type].redistribute[protocol].route_map}}
+{%-      elif 'metric' in bgp_afi[type].redistribute[protocol] %}
+ redistribute {{protocol}} metric {{bgp_afi[type].redistribute[protocol].metric}} 
+{%-      elif 'route_map' in bgp_afi[type].redistribute[protocol] %}
+ redistribute {{protocol}} route-map {{bgp_afi[type].redistribute[protocol].route_map}}
+{%-      else %} 
+ redistribute {{protocol}}
+{%-      endif %}
+{%-    endfor %}
+{%-  endif %}
+{#- END redistribute #}
+
+{%-       if 'network' in bgp_afi[type] %}
+{%-         for net in bgp_afi[type].network %}
+  network {{ net }}
+{%-         endfor %}
+{%-       endif %}
+ exit-address-family
+!
+{%-     endif %}
+{%-   endfor %}
+{%- endif %}
+{#- END Global ASN address-family section; set protocols bgp 65001 address-family #}
+
+{#- set protocols nbgp xxxx maximum-paths ibgp x, Generated by default for afi_4 #}
+{#- We don't have this parameter in afi_6. But this is supported in the FRR #}
+{%- if 'maximum_paths' in conf_bgp[asn] %}
+{%-   if 'ebgp' in conf_bgp[asn].maximum_paths %}
+ !
+ address-family ipv4 unicast
+  maximum-paths {{ conf_bgp[asn].maximum_paths.ebgp }}
+ exit-address-family
+ !
+{%-   endif %}
+{%-   if 'ibgp' in conf_bgp[asn].maximum_paths %}
+ !
+ address-family ipv4 unicast
+  maximum-paths ibgp {{ conf_bgp[asn].maximum_paths.ibgp }}
+ exit-address-family
+ !
+{%-   endif %}
+{%- endif %}
+
+{#- START peer-group; set protocol bgp xxx peer-group #}
+{%- if 'peer_group' in conf_bgp[asn] %}
+{%-   for pr_group in conf_bgp[asn].peer_group %}
+{%- set conf_peer_group = conf_bgp[asn].peer_group[pr_group] %}
+ neighbor {{pr_group}} peer-group
+
+{#- First parameter for peer-group - remote-as #}
+{%- if 'remote_as' in conf_peer_group %}
+ neighbor {{ pr_group }} remote-as {{ conf_peer_group.remote_as }}
+{%- endif %}
+
+{%- if 'bfd' in conf_peer_group %}
+ neighbor {{ pr_group }} bfd
+{%- endif %}
+
+{%- if 'capability' in conf_peer_group %}
+{%-   if 'dynamic' in conf_peer_group.capability %}
+ neighbor {{ pr_group }} capability dynamic
+{%-   endif %}
+{%-   if 'extended_nexthop' in conf_peer_group.capability %}
+ neighbor {{ pr_group }} capability extended-nexthop
+{%-   endif %}
+{%- endif %}
+
+{%- if 'description' in conf_peer_group %}
+ neighbor {{ pr_group }} description {{ conf_peer_group.description }}
+{%- endif %}
+
+{%- if 'disable_capability_negotiation' in conf_peer_group %}
+ neighbor {{ pr_group }} disable-capability-negotiation
+{%- endif %}
+
+{#- https://phabricator.vyos.net/T2844. 'disable-send-community' only for afi #}
+{%- if 'disable_send_community' in conf_peer_group %}
+ !
+{%- endif %}
+
+{%- if 'ebgp_multihop' in conf_peer_group %}
+ neighbor {{ pr_group }} ebgp-multihop {{conf_peer_group.ebgp_multihop}}
+{%- endif %}
+
+{%- if 'local_as' in conf_peer_group %}
+{%-   for loc_asn in conf_peer_group.local_as %}
+{%-     if 'no_prepend' in conf_peer_group.local_as[loc_asn] %}
+ neighbor {{ pr_group }} local-as {{loc_asn}} no-prepend
+{%-     else %}
+ neighbor {{ pr_group }} local-as {{loc_asn}} 
+{%-     endif %}
+{%-   endfor %}
+{%- endif %}
+
+{%- if 'override_capability' in conf_peer_group %}
+ neighbor {{ pr_group }} override-capability
+{%- endif %}
+
+{%- if 'passive' in conf_peer_group %}
+ neighbor {{ pr_group }} passive
+{%- endif %}
+
+{%- if 'password' in conf_peer_group %}
+ neighbor {{ pr_group }} password {{ conf_peer_group.password }}
+{%- endif %}
+
+{%- if 'shutdown' in conf_peer_group %}
+ neighbor {{ pr_group }} shutdown
+{%- endif %}
+
+{%- if 'ttl_security' in conf_peer_group %}
+{%-   if 'hops' in conf_peer_group.ttl_security %}
+ neighbor {{ pr_group }} ttl-security hops {{conf_peer_group.ttl_security.hops}} 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'update_source' in conf_peer_group %}
+ neighbor {{ pr_group }} update-source {{ conf_peer_group.update_source }}
+{%- endif %}
+
+{# START peer-group afi; set protocols bgp xxx peer-group FOO address-family #}
+{%- if 'address_family' in conf_peer_group %}
+{%- for afi in conf_peer_group.address_family %}
+{%-   if afi == "ipv4_unicast" %}
+ !
+ address-family ipv4 unicast
+
+{%- if 'allowas_in' in conf_peer_group.address_family.ipv4_unicast %}
+{%-   if 'number' in conf_peer_group.address_family.ipv4_unicast.allowas_in %}
+  neighbor {{ pr_group }} allowas-in {{ conf_peer_group.address_family.ipv4_unicast.allowas_in.number }}
+{%-   else %}
+  neighbor {{ pr_group }} allowas-in
+{%-   endif %}
+{%- endif %}
+
+{#- START Single Params for peer-group; set protocols bgp xxx peer-group FOO address-family ipv4-unicast #}
+
+{%- if 'remove_private_as' in conf_peer_group.address_family.ipv4_unicast %}
+  neighbor {{ pr_group }} remove-private-AS
+{%- endif %}
+
+{%- if 'route_reflector_client' in conf_peer_group.address_family.ipv4_unicast %}
+  neighbor {{ pr_group }} route-reflector-client
+{%- endif %}
+
+{%- if 'weight' in conf_peer_group.address_family.ipv4_unicast %}
+  neighbor {{ pr_group }} weight {{ conf_peer_group.address_family.ipv4_unicast.weight }}
+{%- endif %}
+{#- END single params for peer-group #}
+
+{#- Checks need to be done as-path|med|next-hop #}
+{%- if 'attribute_unchanged' in conf_peer_group.address_family.ipv4_unicast %}
+{%-   if 'as_path' in conf_peer_group.address_family.ipv4_unicast.attribute_unchanged %}
+  neighbor {{ pr_group }} attribute-unchanged as-path
+{%-   else %}
+  neighbor {{ pr_group }} attribute-unchanged as-path next-hop med
+{%-   endif %}
+{%- endif %}
+{#- END attribute-unchanged #}
+
+{%- if 'capability' in conf_peer_group.address_family.ipv4_unicast %}
+{%-   if 'receive' in conf_peer_group.address_family.ipv4_unicast.capability.orf.prefix_list %}
+  neighbor {{ pr_group }} capability orf prefix-list receive
+{%-   endif %}
+{%-   if 'send' in conf_peer_group.address_family.ipv4_unicast.capability.orf.prefix_list %}
+  neighbor {{ pr_group }} capability orf prefix-list send 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'default_originate' in conf_peer_group.address_family.ipv4_unicast %}
+{%-   if 'route_map' in conf_peer_group.address_family.ipv4_unicast.default_originate %}
+  neighbor {{ pr_group }} default-originate route-map {{ conf_peer_group.address_family.ipv4_unicast.default_originate.route_map }}
+{%-   else %}
+  neighbor {{ pr_group }} default-originate 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'distribute_list' in  conf_peer_group.address_family.ipv4_unicast %}
+{%-   if 'export' in conf_peer_group.address_family.ipv4_unicast.distribute_list  %}
+  neighbor {{ pr_group }} distribute-list {{conf_peer_group.address_family.ipv4_unicast.distribute_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer_group.address_family.ipv4_unicast.distribute_list  %}
+  neighbor {{ pr_group }} distribute-list {{conf_peer_group.address_family.ipv4_unicast.distribute_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'filter_list' in  conf_peer_group.address_family.ipv4_unicast %}
+{%-   if 'export' in conf_peer_group.address_family.ipv4_unicast.filter_list  %}
+  neighbor {{ pr_group }} filter-list {{conf_peer_group.address_family.ipv4_unicast.filter_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer_group.address_family.ipv4_unicast.filter_list  %}
+  neighbor {{ pr_group }} filter-list {{conf_peer_group.address_family.ipv4_unicast.filter_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'maximum_prefix' in conf_peer_group.address_family.ipv4_unicast %}
+  neighbor {{ pr_group }} maximum-prefix {{ conf_peer_group.address_family.ipv4_unicast.maximum_prefix }}
+{%- endif %}
+
+{#- https://phabricator.vyos.net/T1817 #}
+{%- if 'nexthop_self' in conf_peer_group.address_family.ipv4_unicast %}
+{%-   if 'force' in conf_peer_group.address_family.ipv4_unicast.nexthop_self %}
+  neighbor {{ pr_group }} next-hop-self force
+  neighbor {{ pr_group }} next-hop-self
+{%-   else %}
+  neighbor {{ pr_group }} next-hop-self
+{%-   endif %}
+{%- endif %}
+
+{%- if 'route_server_client' in conf_peer_group.address_family.ipv4_unicast %}
+  neighbor {{ pr_group }} route-server-client
+{%- endif %}
+
+{%- if 'route_map' in  conf_peer_group.address_family.ipv4_unicast %}
+{%-   if 'export' in conf_peer_group.address_family.ipv4_unicast.route_map  %}
+  neighbor {{ pr_group }} route-map {{conf_peer_group.address_family.ipv4_unicast.route_map.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer_group.address_family.ipv4_unicast.route_map  %}
+  neighbor {{ pr_group }} route-map {{conf_peer_group.address_family.ipv4_unicast.route_map.import}} in
+{%-   endif %}
+{%- endif %}
+{%- if 'prefix_list' in  conf_peer_group.address_family.ipv4_unicast %}
+{%-   if 'export' in conf_peer_group.address_family.ipv4_unicast.prefix_list  %}
+  neighbor {{ pr_group }} prefix-list {{conf_peer_group.address_family.ipv4_unicast.prefix_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer_group.address_family.ipv4_unicast.prefix_list  %}
+  neighbor {{ pr_group }} prefix-list {{conf_peer_group.address_family.ipv4_unicast.prefix_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'soft_reconfiguration' in  conf_peer_group.address_family.ipv4_unicast %}
+{%-   if 'inbound' is defined %}
+  neighbor {{ pr_group }} soft-reconfiguration inbound 
+{%-   endif %}
+{%- endif %}
+
+{#- Need to check. https://phabricator.vyos.net/T2387#73900 #}
+{%- if 'unsuppress_map' in conf_peer_group.address_family.ipv4_unicast %}
+  neighbor {{ pr_group }} unsuppress-map {{conf_peer_group.address_family.ipv4_unicast.unsuppress_map}}
+{%- endif %}
+  neighbor {{ pr_group }} activate
+ exit-address-family
+ !
+{%-   endif %}
+
+{%-   if afi == "ipv6_unicast" %}
+ !
+ address-family ipv6 unicast
+
+{%- if 'allowas_in' in conf_peer_group.address_family.ipv6_unicast %}
+{%-   if 'number' in conf_peer_group.address_family.ipv6_unicast.allowas_in %}
+  neighbor {{ pr_group }} allowas-in {{ conf_peer_group.address_family.ipv6_unicast.allowas_in.number }}
+{%-   else %}
+  neighbor {{ pr_group }} allowas-in
+{%-   endif %}
+{%- endif %}
+
+{#- START Single Params for peer-group afi6; set protocols bgp xxx peer-group FOO address-family ipv6-unicast #}
+{%- if 'remove_private_as' in conf_peer_group.address_family.ipv6_unicast %}
+  neighbor {{ pr_group }} remove-private-AS
+{%- endif %}
+
+{%- if 'route_reflector_client' in conf_peer_group.address_family.ipv6_unicast %}
+  neighbor {{ pr_group }} route-reflector-client
+{%- endif %}
+
+{%- if 'weight' in conf_peer_group.address_family.ipv6_unicast %}
+  neighbor {{ pr_group }} weight {{ conf_peer_group.address_family.ipv6_unicast.weight }}
+{%- endif %}
+{#- END single params for peer-group afi6 #}
+
+{#- Checks need to be done as-path|med|next-hop #}
+{%- if 'attribute_unchanged' in conf_peer_group.address_family.ipv6_unicast %}
+{%-   if 'as_path' in conf_peer_group.address_family.ipv6_unicast.attribute_unchanged %}
+  neighbor {{ pr_group }} attribute-unchanged as-path
+{%-   else %}
+  neighbor {{ pr_group }} attribute-unchanged as-path next-hop med
+{%-   endif %}
+{%- endif %}
+
+{%- if 'capability' in conf_peer_group.address_family.ipv6_unicast %}
+{%-   if 'receive' in conf_peer_group.address_family.ipv6_unicast.capability.orf.prefix_list %}
+  neighbor {{ pr_group }} capability orf prefix-list receive
+{%-   endif %}
+{%-   if 'send' in conf_peer_group.address_family.ipv6_unicast.capability.orf.prefix_list %}
+  neighbor {{ pr_group }} capability orf prefix-list send 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'default_originate' in conf_peer_group.address_family.ipv6_unicast %}
+{%-   if 'route_map' in conf_peer_group.address_family.ipv6_unicast.default_originate %}
+  neighbor {{ pr_group }} default-originate route-map {{ conf_peer_group.address_family.ipv6_unicast.default_originate.route_map }}
+{%-   else %}
+  neighbor {{ pr_group }} default-originate 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'distribute_list' in  conf_peer_group.address_family.ipv6_unicast %}
+{%-   if 'export' in conf_peer_group.address_family.ipv6_unicast.distribute_list  %}
+  neighbor {{ pr_group }} distribute-list {{conf_peer_group.address_family.ipv6_unicast.distribute_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer_group.address_family.ipv6_unicast.distribute_list  %}
+  neighbor {{ pr_group }} distribute-list {{conf_peer_group.address_family.ipv6_unicast.distribute_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'filter_list' in  conf_peer_group.address_family.ipv6_unicast %}
+{%-   if 'export' in conf_peer_group.address_family.ipv6_unicast.filter_list  %}
+  neighbor {{ pr_group }} filter-list {{conf_peer_group.address_family.ipv6_unicast.filter_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer_group.address_family.ipv6_unicast.filter_list  %}
+  neighbor {{ pr_group }} filter-list {{conf_peer_group.address_family.ipv6_unicast.filter_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'maximum_prefix' in conf_peer_group.address_family.ipv6_unicast %}
+  neighbor {{ pr_group }} maximum-prefix {{ conf_peer_group.address_family.ipv6_unicast.maximum_prefix }}
+{%- endif %}
+
+{#- https://phabricator.vyos.net/T1817 #}
+{%- if 'nexthop_self' in conf_peer_group.address_family.ipv6_unicast %}
+{%-   if 'force' in conf_peer_group.address_family.ipv6_unicast.nexthop_self %}
+  neighbor {{ pr_group }} next-hop-self force
+  neighbor {{ pr_group }} next-hop-self
+{%-   else %}
+  neighbor {{ pr_group }} next-hop-self
+{%-   endif %}
+{%- endif %}
+
+{%- if 'route_server_client' in conf_peer_group.address_family.ipv6_unicast %}
+  neighbor {{ pr_group }} route-server-client
+{%- endif %}
+
+{%- if 'route_map' in  conf_peer_group.address_family.ipv6_unicast %}
+{%-   if 'export' in conf_peer_group.address_family.ipv6_unicast.route_map  %}
+  neighbor {{ pr_group }} route-map {{conf_peer_group.address_family.ipv6_unicast.route_map.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer_group.address_family.ipv6_unicast.route_map  %}
+  neighbor {{ pr_group }} route-map {{conf_peer_group.address_family.ipv6_unicast.route_map.import}} in
+{%-   endif %}
+{%- endif %}
+{%- if 'prefix_list' in  conf_peer_group.address_family.ipv6_unicast %}
+{%-   if 'export' in conf_peer_group.address_family.ipv6_unicast.prefix_list  %}
+  neighbor {{ pr_group }} prefix-list {{conf_peer_group.address_family.ipv6_unicast.prefix_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer_group.address_family.ipv6_unicast.prefix_list  %}
+  neighbor {{ pr_group }} prefix-list {{conf_peer_group.address_family.ipv6_unicast.prefix_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'soft_reconfiguration' in  conf_peer_group.address_family.ipv6_unicast %}
+{%-   if 'inbound' is defined %}
+  neighbor {{ pr_group }} soft-reconfiguration inbound 
+{%-   endif %}
+{%- endif %}
+
+{#- Checks need to be done. https://phabricator.vyos.net/T2387#73900 #}
+{%- if 'unsuppress_map' in conf_peer_group.address_family.ipv6_unicast %}
+  neighbor {{ pr_group }} unsuppress-map {{conf_peer_group.address_family.ipv6_unicast.unsuppress_map}}
+{%- endif %}
+  neighbor {{ pr_group }} activate
+ exit-address-family
+ !
+{%-   endif %}
+
+{%- endfor %}
+{%- endif %}
+{# END peer-group afi; set protocols bgp xxx peer-group FOO address-family #}
+
+{%-   endfor %}
+{%- endif %}
+{#- END peer-group; set protocol bgp xxx peer-group #}
+
+{#- START peer section; set protocol bgp xxx neighbor #}
+{%-  for peer in conf_bgp[asn].neighbor %}
+{#- set peer-group as conf_peer #}
+{%- set conf_peer = conf_bgp[asn].neighbor[peer] %}
+
+{#- First parameter for peer-group - remote-as #}
+{%- if 'remote_as' in conf_peer %}
+ neighbor {{ peer }} remote-as {{ conf_peer.remote_as }}
+{%- endif %}
+
+{%- if 'advertisement_interval' in conf_peer %}
+ neighbor {{ peer }} advertisement-interval {{ conf_peer.advertisement_interval }}
+{%- endif %}
+
+{%- if 'bfd' in conf_peer %}
+{%-   if 'check_control_plane_failure' in conf_peer.bfd %}
+ neighbor {{ peer }} bfd
+ neighbor {{ peer }} bfd check-control-plane-failure
+{%-   else %}
+ neighbor {{ peer }} bfd
+{%-   endif %}
+{%- endif %}
+
+{%- if 'capability' in conf_peer %}
+{%-   if 'dynamic' in conf_peer.capability %}
+ neighbor {{ peer }} capability dynamic
+{%-   endif %}
+{%-   if 'extended_nexthop' in conf_peer.capability %}
+ neighbor {{ peer }} capability extended-nexthop
+{%-   endif %}
+{%- endif %}
+
+{%- if 'description' in conf_peer %}
+ neighbor {{ peer }} description {{ conf_peer.description }}
+{%- endif %}
+
+{%- if 'disable_capability_negotiation' in conf_peer %}
+ neighbor {{ peer }} disable-capability-negotiation
+{%- endif %}
+
+{#- https://phabricator.vyos.net/T2844. 'disable-send-community' only for afi #}
+{%- if 'disable_send_community' in conf_peer %}
+ !
+{%- endif %}
+
+{%- if 'ebgp_multihop' in conf_peer %}
+ neighbor {{ peer }} ebgp-multihop {{conf_peer.ebgp_multihop}}
+{%- endif %}
+
+{#- Need to check. 'Peer-group' needs to define before this section #}
+{%- if 'interface' in conf_peer %}
+{%-   if 'peer_group' in conf_peer.interface %}
+ neighbor {{ peer }} interface peer-group {{conf_peer.interface.peer_group}}
+{%-   endif %}
+{%-   if 'remote_as' in conf_peer.interface %}
+ neighbor {{ peer }} interface remote-as {{conf_peer.interface.remote_as}}
+{%-   endif %}
+{%-   if 'v6only' in conf_peer.interface %}
+{%-     if 'peer_group' in conf_peer.interface.v6only %}
+ neighbor {{ peer }} peer-group {{conf_peer.interface.peer_group}}
+{%-     endif %}
+{%-     if 'remote_as' in conf_peer.interface.v6only %}
+ neighbor {{ peer }} interface v6only remote-as {{conf_peer.interface.v6only.remote_as}}
+{%-     endif %}
+{%-   endif %}
+{%- endif %}
+
+{%- if 'local_as' in conf_peer %}
+{%-   for loc_asn in conf_peer.local_as %}
+{%-     if 'no_prepend' in conf_peer.local_as[loc_asn] %}
+ neighbor {{ peer }} local-as {{loc_asn}} no-prepend
+{%-     else %}
+ neighbor {{ peer }} local-as {{loc_asn}} 
+{%-     endif %}
+{%-   endfor %}
+{%- endif %}
+
+{%- if 'override_capability' in conf_peer %}
+ neighbor {{ peer }} override-capability
+{%- endif %}
+
+{%- if 'passive' in conf_peer %}
+ neighbor {{ peer }} passive
+{%- endif %}
+
+{%- if 'password' in conf_peer %}
+ neighbor {{ peer }} password {{ conf_peer.password }}
+{%- endif %}
+
+{%- if 'peer_group' in conf_peer %}
+ neighbor {{ peer }} peer-group {{ conf_peer.peer_group }}
+{%- endif %}
+
+{%- if 'port' in conf_peer %}
+ neighbor {{ peer }} port {{ conf_peer.port }}
+{%- endif %}
+
+{%- if 'shutdown' in conf_peer %}
+ neighbor {{ peer }} shutdown
+{%- endif %}
+
+{%- if 'strict_capability_match' in conf_peer %}
+ neighbor {{ peer }} strict-capability-match
+{%- endif %}
+
+{#- Need to check #}
+{%- if 'timers' in conf_peer %}
+{%-   if ( ('connect' and 'holdtime' and 'keepalive') in conf_peer.timers ) %}
+ neighbor {{ peer }} timers {{conf_peer.timers.keepalive}} {{conf_peer.timers.holdtime}}
+ neighbor {{ peer }} timers connect {{conf_peer.timers.connect}} 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'ttl_security' in conf_peer %}
+{%-   if 'hops' in conf_peer.ttl_security %}
+ neighbor {{ peer }} ttl-security hops {{conf_peer.ttl_security.hops}} 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'update_source' in conf_peer %}
+ neighbor {{ peer }} update-source {{ conf_peer.update_source }}
+{%- endif %}
+
+{#- START address family for peer; set protocols bgp xxx neighbor x.x.x.x address-family ipvX-unicast #}
+{%- if 'address_family' in conf_peer %}
+{%- for afi in conf_peer.address_family %}
+{%-   if afi == "ipv4_unicast" %}
+ !
+ address-family ipv4 unicast
+
+{%- if 'allowas_in' in conf_peer.address_family.ipv4_unicast %}
+{%-   if 'number' in conf_peer.address_family.ipv4_unicast.allowas_in %}
+  neighbor {{ peer }} allowas-in {{ conf_peer.address_family.ipv4_unicast.allowas_in.number }}
+{%-   else %}
+  neighbor {{ peer }} allowas-in
+{%-   endif %}
+{%- endif %}
+
+{#- START Single Params for neighbor;  #}
+{%- if 'as_override' in conf_peer.address_family.ipv4_unicast %}
+  neighbor {{ peer }} as-override
+{%- endif %}
+
+{%- if 'remove_private_as' in conf_peer.address_family.ipv4_unicast %}
+  neighbor {{ peer }} remove-private-AS
+{%- endif %}
+
+{%- if 'route_reflector_client' in conf_peer.address_family.ipv4_unicast %}
+  neighbor {{ peer }} route-reflector-client
+{%- endif %}
+
+{%- if 'weight' in conf_peer.address_family.ipv4_unicast %}
+  neighbor {{ peer }} weight {{ conf_peer.address_family.ipv4_unicast.weight }}
+{%- endif %}
+{#- END single params for neighbor #}
+
+{#- Checks need to be done as-path|med|next-hop #}
+{%- if 'attribute_unchanged' in conf_peer.address_family.ipv4_unicast %}
+{%-   if 'as_path' in conf_peer.address_family.ipv4_unicast.attribute_unchanged %}
+  neighbor {{ peer }} attribute-unchanged as-path
+{%-   else %}
+  neighbor {{ peer }} attribute-unchanged as-path next-hop med
+{%-   endif %}
+{%- endif %}
+{#- END attribute-unchanged #}
+
+{%- if 'capability' in conf_peer.address_family.ipv4_unicast %}
+{%-   if 'receive' in conf_peer.address_family.ipv4_unicast.capability.orf.prefix_list %}
+  neighbor {{ peer }} capability orf prefix-list receive
+{%-   endif %}
+{%-   if 'send' in conf_peer.address_family.ipv4_unicast.capability.orf.prefix_list %}
+  neighbor {{ peer }} capability orf prefix-list send 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'default_originate' in conf_peer.address_family.ipv4_unicast %}
+{%-   if 'route_map' in conf_peer.address_family.ipv4_unicast.default_originate %}
+  neighbor {{ peer }} default-originate route-map {{ conf_peer.address_family.ipv4_unicast.default_originate.route_map }}
+{%-   else %}
+  neighbor {{ peer }} default-originate 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'distribute_list' in  conf_peer.address_family.ipv4_unicast %}
+{%-   if 'export' in conf_peer.address_family.ipv4_unicast.distribute_list  %}
+  neighbor {{ peer }} distribute-list {{conf_peer.address_family.ipv4_unicast.distribute_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer.address_family.ipv4_unicast.distribute_list  %}
+  neighbor {{ peer }} distribute-list {{conf_peer.address_family.ipv4_unicast.distribute_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'filter_list' in  conf_peer.address_family.ipv4_unicast %}
+{%-   if 'export' in conf_peer.address_family.ipv4_unicast.filter_list  %}
+  neighbor {{ peer }} filter-list {{conf_peer.address_family.ipv4_unicast.filter_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer.address_family.ipv4_unicast.filter_list  %}
+  neighbor {{ peer }} filter-list {{conf_peer.address_family.ipv4_unicast.filter_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'maximum_prefix' in conf_peer.address_family.ipv4_unicast %}
+  neighbor {{ peer }} maximum-prefix {{ conf_peer.address_family.ipv4_unicast.maximum_prefix }}
+{%- endif %}
+
+{#- https://phabricator.vyos.net/T1817 #}
+{%- if 'nexthop_self' in conf_peer.address_family.ipv4_unicast %}
+{%-   if 'force' in conf_peer.address_family.ipv4_unicast.nexthop_self %}
+  neighbor {{ peer }} next-hop-self force
+  neighbor {{ peer }} next-hop-self
+{%-   else %}
+  neighbor {{ peer }} next-hop-self
+{%-   endif %}
+{%- endif %}
+
+{%- if 'route_server_client' in conf_peer.address_family.ipv4_unicast %}
+  neighbor {{ peer }} route-server-client
+{%- endif %}
+
+{%- if 'route_map' in  conf_peer.address_family.ipv4_unicast %}
+{%-   if 'export' in conf_peer.address_family.ipv4_unicast.route_map  %}
+  neighbor {{ peer }} route-map {{conf_peer.address_family.ipv4_unicast.route_map.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer.address_family.ipv4_unicast.route_map  %}
+  neighbor {{ peer }} route-map {{conf_peer.address_family.ipv4_unicast.route_map.import}} in
+{%-   endif %}
+{%- endif %}
+{%- if 'prefix_list' in  conf_peer.address_family.ipv4_unicast %}
+{%-   if 'export' in conf_peer.address_family.ipv4_unicast.prefix_list  %}
+  neighbor {{ peer }} prefix-list {{conf_peer.address_family.ipv4_unicast.prefix_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer.address_family.ipv4_unicast.prefix_list  %}
+  neighbor {{ peer }} prefix-list {{conf_peer.address_family.ipv4_unicast.prefix_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'soft_reconfiguration' in  conf_peer.address_family.ipv4_unicast %}
+{%-   if 'inbound' is defined %}
+  neighbor {{ peer }} soft-reconfiguration inbound 
+{%-   endif %}
+{%- endif %}
+
+{#- Checks need to be done. https://phabricator.vyos.net/T2387#73900 #}
+{%- if 'unsuppress_map' in conf_peer.address_family.ipv4_unicast %}
+  neighbor {{ peer }} unsuppress-map {{conf_peer.address_family.ipv4_unicast.unsuppress_map}}
+{%- endif %}
+  neighbor {{ peer }} activate
+ exit-address-family
+ !
+{%-   endif %}
+
+{%-   if afi == "ipv6_unicast" %}
+ !
+ address-family ipv6 unicast
+
+{%- if 'allowas_in' in conf_peer.address_family.ipv6_unicast %}
+{%-   if 'number' in conf_peer.address_family.ipv6_unicast.allowas_in %}
+  neighbor {{ peer }} allowas-in {{ conf_peer.address_family.ipv6_unicast.allowas_in.number }}
+{%-   else %}
+  neighbor {{ peer }} allowas-in
+{%-   endif %}
+{%- endif %}
+
+{#- START Single Params for neighbor #}
+{%- if 'as_override' in conf_peer.address_family.ipv6_unicast %}
+  neighbor {{ peer }} as-override
+{%- endif %}
+
+{%- if 'remove_private_as' in conf_peer.address_family.ipv6_unicast %}
+  neighbor {{ peer }} remove-private-AS
+{%- endif %}
+
+{%- if 'route_reflector_client' in conf_peer.address_family.ipv6_unicast %}
+  neighbor {{ peer }} route-reflector-client
+{%- endif %}
+
+{%- if 'weight' in conf_peer.address_family.ipv6_unicast %}
+  neighbor {{ peer }} weight {{ conf_peer.address_family.ipv6_unicast.weight }}
+{%- endif %}
+{#- END single params for neighbor #}
+
+{#- Checks need to be done as-path|med|next-hop #}
+{%- if 'attribute_unchanged' in conf_peer.address_family.ipv6_unicast %}
+{%-   if 'as_path' in conf_peer.address_family.ipv6_unicast.attribute_unchanged %}
+  neighbor {{ peer }} attribute-unchanged as-path
+{%-   else %}
+  neighbor {{ peer }} attribute-unchanged as-path next-hop med
+{%-   endif %}
+{%- endif %}
+{#- END attribute-unchanged #}
+
+{%- if 'capability' in conf_peer.address_family.ipv6_unicast %}
+{%-   if 'receive' in conf_peer.address_family.ipv6_unicast.capability.orf.prefix_list %}
+  neighbor {{ peer }} capability orf prefix-list receive
+{%-   endif %}
+{%-   if 'send' in conf_peer.address_family.ipv6_unicast.capability.orf.prefix_list %}
+  neighbor {{ peer }} capability orf prefix-list send 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'default_originate' in conf_peer.address_family.ipv6_unicast %}
+{%-   if 'route_map' in conf_peer.address_family.ipv6_unicast.default_originate %}
+  neighbor {{ peer }} default-originate route-map {{ conf_peer.address_family.ipv6_unicast.default_originate.route_map }}
+{%-   else %}
+  neighbor {{ peer }} default-originate 
+{%-   endif %}
+{%- endif %}
+
+{%- if 'distribute_list' in  conf_peer.address_family.ipv6_unicast %}
+{%-   if 'export' in conf_peer.address_family.ipv6_unicast.distribute_list  %}
+  neighbor {{ peer }} distribute-list {{conf_peer.address_family.ipv6_unicast.distribute_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer.address_family.ipv6_unicast.distribute_list  %}
+  neighbor {{ peer }} distribute-list {{conf_peer.address_family.ipv6_unicast.distribute_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'filter_list' in  conf_peer.address_family.ipv6_unicast %}
+{%-   if 'export' in conf_peer.address_family.ipv6_unicast.filter_list  %}
+  neighbor {{ peer }} filter-list {{conf_peer.address_family.ipv6_unicast.filter_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer.address_family.ipv6_unicast.filter_list  %}
+  neighbor {{ peer }} filter-list {{conf_peer.address_family.ipv6_unicast.filter_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'maximum_prefix' in conf_peer.address_family.ipv6_unicast %}
+  neighbor {{ peer }} maximum-prefix {{ conf_peer.address_family.ipv6_unicast.maximum_prefix }}
+{%- endif %}
+
+{#- https://phabricator.vyos.net/T1817 #}
+{%- if 'nexthop_self' in conf_peer.address_family.ipv6_unicast %}
+{%-   if 'force' in conf_peer.address_family.ipv6_unicast.nexthop_self %}
+  neighbor {{ peer }} next-hop-self force
+  neighbor {{ peer }} next-hop-self
+{%-   else %}
+  neighbor {{ peer }} next-hop-self
+{%-   endif %}
+{%- endif %}
+
+{%- if 'route_server_client' in conf_peer.address_family.ipv6_unicast %}
+  neighbor {{ peer }} route-server-client
+{%- endif %}
+
+{%- if 'route_map' in  conf_peer.address_family.ipv6_unicast %}
+{%-   if 'export' in conf_peer.address_family.ipv6_unicast.route_map  %}
+  neighbor {{ peer }} route-map {{conf_peer.address_family.ipv6_unicast.route_map.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer.address_family.ipv6_unicast.route_map  %}
+  neighbor {{ peer }} route-map {{conf_peer.address_family.ipv6_unicast.route_map.import}} in
+{%-   endif %}
+{%- endif %}
+{%- if 'prefix_list' in  conf_peer.address_family.ipv6_unicast %}
+{%-   if 'export' in conf_peer.address_family.ipv6_unicast.prefix_list  %}
+  neighbor {{ peer }} prefix-list {{conf_peer.address_family.ipv6_unicast.prefix_list.export}} out
+{%-   endif %}
+{%-   if 'import' in conf_peer.address_family.ipv6_unicast.prefix_list  %}
+  neighbor {{ peer }} prefix-list {{conf_peer.address_family.ipv6_unicast.prefix_list.import}} in
+{%-   endif %}
+{%- endif %}
+
+{%- if 'soft_reconfiguration' in  conf_peer.address_family.ipv6_unicast %}
+{%-   if 'inbound' is defined %}
+  neighbor {{ peer }} soft-reconfiguration inbound 
+{%-   endif %}
+{%- endif %}
+
+{#- Checks need to be done. https://phabricator.vyos.net/T2387#73900 #}
+{%- if 'unsuppress_map' in conf_peer.address_family.ipv6_unicast %}
+  neighbor {{ peer }} unsuppress-map {{conf_peer.address_family.ipv6_unicast.unsuppress_map}}
+{%- endif %}
+  neighbor {{ peer }} activate
+ exit-address-family
+ !
+{%-   endif %}
+
+{%- endfor %}
+{%- endif %}
+{#- END address family for peer #}
+
+{%-  endfor %}
+{#- END peer section; set protocols bgp xxx neighbor #}
+
+{#- START parameters section; set protocol bgp xxx parameters #}
+{%- if 'always_compare_med' in bgp_params %}
+ bgp always-compare-med
+{%- endif %}
+
+{%- if 'bestpath' in bgp_params %}
+{%-   if 'compare_routerid' in bgp_params.bestpath %}
+ bgp bestpath compare-routerid
+{%-   endif %}
+{%-   if 'as_path' in bgp_params.bestpath %}
+{%-     if 'confed' in bgp_params.bestpath.as_path %}
+ bgp bestpath as-path confed
+{%-     endif %}
+{%-     if 'ignore' in bgp_params.bestpath.as_path %}
+ bgp bestpath as-path ignore
+{%-     endif %}
+{%-     if 'multipath_relax' in bgp_params.bestpath.as_path %}
+ bgp bestpath as-path multipath-relax
+{%-     endif %}
+{%-   endif %}
+{%-   if 'med' in bgp_params.bestpath %}
+{%-     if ( ('confed' and 'missing_as_worst') in bgp_params.bestpath.med ) %}
+ bgp bestpath med confed missing-as-worst
+{%-     elif 'confed' in bgp_params.bestpath.med %}
+ bgp bestpath med confed
+{%-     elif 'missing_as_worst' in bgp_params.bestpath.med %}
+ bgp bestpath med missing-as-worst
+{%-     endif%}
+{%-   endif %}
+{%- endif %}
+
+{%- if 'cluster_id' in bgp_params %}
+ bgp cluster-id {{ bgp_params.cluster_id }}
+{%- endif %}
+
+{%- if 'confederation' in bgp_params %}
+{%-   if 'identifier' in bgp_params.confederation %}
+ bgp confederation identifier {{ bgp_params.confederation.identifier }}
+{%-   endif %}
+{%-   if 'peers' in bgp_params.confederation %}
+ bgp confederation peers {{ bgp_params.confederation.peers }}
+{%-   endif %}
+{%- endif %}
+
+{#- Doesn't work in current FRR configuration (bgp dampening 16 751 2001 61) #}
+{%- if 'dampening' in bgp_params %}
+{%-   if ( ('half_life' and 'max_suppress_time' and 're_use' and 'start_suppress_time') in bgp_params.dampening ) %}
+ bgp dampening {{ bgp_params.dampening.half_life }} {{ bgp_params.dampening.re_use }} {{ bgp_params.dampening.start_suppress_time }} {{ bgp_params.dampening.max_suppress_time }}
+{%-   endif %}
+{%- endif %}
+
+{%- if 'default' in bgp_params %}
+{%-   if 'local_pref' in bgp_params.default %}
+ bgp default local-preference {{ bgp_params.default.local_pref }}
+{%-   endif %}
+{#- We use this is parameter as default in template (5-th string) #}
+{%-   if 'no_ipv4_unicast' in bgp_params.default %}
+ no bgp default ipv4-unicast
+{%-   endif %}
+{%- endif %}
+
+{%- if 'deterministic_med' in bgp_params %}
+ bgp deterministic-med 
+{%- endif %}
+
+{%- if 'distance' in bgp_params %}
+{%-   if 'global' in bgp_params.distance %}
+{%-     if ( ('external' and 'internal' and 'local') in bgp_params.distance.global ) %}
+ !
+ address-family ipv4 unicast
+  distance bgp {{ bgp_params.distance.global.external }} {{ bgp_params.distance.global.internal }} {{ bgp_params.distance.global.local }}
+ exit-address-family
+!
+{%-     endif %}
+{%-   endif %}
+{%-   if 'prefix' in bgp_params.distance %}
+ !
+ address-family ipv4 unicast
+{%- for prfx in bgp_params.distance.prefix %}
+  distance {{ bgp_params.distance.prefix[prfx].distance }} {{ prfx }}
+{%- endfor %}
+ exit-address-family
+!
+{%-   endif %}
+{%- endif %}
+
+{%- if 'graceful_restart' in bgp_params %}
+{%-   if 'stalepath_time' in bgp_params.graceful_restart %}
+ bgp graceful-restart stalepath-time {{ bgp_params.graceful_restart.stalepath_time }}
+{%-   endif %}
+{%- endif %}
+
+{%- if 'log_neighbor_changes' in bgp_params %}
+ bgp log-neighbor-changes
+{%- endif %}
+
+{%- if 'network_import_check' in bgp_params %}
+ bgp network import-check 
+{%- endif %}
+
+{%- if 'no_client_to_client_reflection' in bgp_params %}
+ no bgp client-to-client reflection
+{%- endif %}
+
+{%- if 'no_fast_external_failover' in bgp_params %}
+ no bgp fast-external-failover
+{%- endif %}
+
+{#- END parameters; set protocols bgp xxx parameters #}
+
+{%- if 'timers' in conf_bgp[asn] %}
+{%-   if ( ('holdtime' and 'keepalive') in conf_bgp[asn].timers ) %}
+ timers bgp {{conf_bgp[asn].timers.keepalive}} {{conf_bgp[asn].timers.holdtime}}
+{%-   endif %}
+{%- endif %}
+
+{%- if 'route_map' in conf_bgp[asn] %}
+!
+ip protocol bgp route-map {{conf_bgp[asn].route_map}}
+{%- endif %}
+!
+{%- endfor -%}
+{#- END asn; router bgp xxx #}